OS/2 Shareware BBS: SysTools/SysTools.zip/pcasst.zip/asst-ps2.INF

OS/2 Help File | 1996-12-20 | 1MB | 31,789 lines

ΓòÉΓòÉΓòÉ 1.  PS/2 INFORMATION  ΓòÉΓòÉΓòÉ

The following sections contain information of a technical nature.  For
marketing and service information, refer to the IBM PC Marketing or IBM PC
Service Assistant books.

Choose the section to which you wish to jump, below:

 Main Menu Sections
 PS/2 Technical Q&As
 PS/2 Technical Tips
 PS/2 85xx ISA Systems Technical Specs
 PS/2 85xx MCA Systems Technical Specs
 PS/2 95xx MCA Systems Technical Specs


ΓòÉΓòÉΓòÉ 2. ----------------------------- ΓòÉΓòÉΓòÉ


ΓòÉΓòÉΓòÉ 3. !!! IMPORTANT INFORMATION !!! ΓòÉΓòÉΓòÉ

20 December 1996.

Due to a change in management direction, the IBM PC Assistant has ceased to
exist as a separate entity.  Most of the content is being migrated to a Lotus
Notes database, from which external access will be made available through a
World Wide Web site. The name of this new database, and the URL, are not yet
known at this time.  Hopefully all will be made clear in due time.

Because it may be months yet before this database is opened to the public, I
have produced one more PC Assistant edition to partially fill the gap.  Because
I only had a few days in which to put it together, many of the new product
announcements since early August, when the last edition was released) are not
included.  There are no new technical specs here, and not much else of note
(aside from some new OS/2 Q&As.) added.  Most of the changes are in the form of
minor corrections and updates to existing Q&As, and many price reductions and
product withdrawals in the IBM PC Marketing Assistant.

I am sorry for the lengthy delay in releasing this long-overdue edition, but
the new database should be a big improvement in the long run, with a more
worldwide focus (international product models, for example), and more timely
updates (daily perhaps), supported by dozens of people around the world.

It is possible that I will release one final edition after this one, in order
to provide the details of where and how to access the new WWW database.  It all
depends on how well publicized it is.  But the amount of time and effort put
into it on my part will probably equal that of this edition, so don't expect
too much.

It's been a pleasure and an honor serving you these last 7 years.

Good luck (and watch out for Murphy!).

Mark T. Chapman
IBM PC Company HelpCenter


ΓòÉΓòÉΓòÉ 4. ----------------------------- ΓòÉΓòÉΓòÉ


ΓòÉΓòÉΓòÉ 5. What is the IBM PS/2 Assistant? ΓòÉΓòÉΓòÉ

                             IBM PS/2 ASSISTANT (TM)
                          Developed by Mark T. Chapman
 Maintained with the valuable assistance of Yvonne Ashcraft and Barbara Culler.
        IBM PC Company HelpCenter; Tie Line: 255-0484; Fax: [phone]
         P.O. Box 12195, Bldg 203/8V6, Research Triangle Park, NC. 27709
    IBMMAIL ID: IBMMAIL(USIB3ZLD); IBMMAIL Internet ID: [e-mail]
       PROFS ID: RALVM8(MCHAPMAN); VNET Internet ID: [e-mail]
  CompuServe ID: 72662,3663; CompuServe Internet ID: [e-mail]
      IBM PC Company BBS ID: MARK CHAPMAN (BBS Phone Number: 919-517-0001)
(C) Copyright IBM Corporation, 1989-1996

The IBM PS/2 Assistant contains information about the IBM PS/2 series of PCs.

OVERVIEW

There are many sources of information available from IBM about IBM PC products,
including announcement letters, service manuals, programming and technical
reference manuals, how-to "cookbooks," electronic bulletin boards (both public
and commercial), and others.  The IBM PC Assistant brings much disparate and
often difficult to find information together into one easy-to-use "electronic
book."

Note:  As the IBM PC Assistant is a product of the IBM PC Company, the
information contained herein covers the subset of IBM PC products sold by the
IBM PC Company.  Most other PC-related products, sold by other IBM companies or
divisions are not included.  Such products include the IBM Gearbox industrial
PCs, and certain host-attach hardware and software products.  Information on
these products must be obtained from the organizations offering them for sale.

The IBM PC Assistant is a help tool composed of PC hardware and
software-related marketing, service, technical and general information, in
online book form.  The books include the:

   1. IBM Consumer PC Assistant (filename ASST-CON.INF), which contains:
            Hardware and software Q&As for Ambra, Aptiva, and PS/1 systems and
           bundled software.
            Hardware technical tips.
            Lengthy technical specifications documents for Aptiva and PS/1
           systems, past and present.
   2. IBM General Information Assistant (ASST-GEN.INF):
            A list of IBM voice and non-voice telephone numbers.
            A list of non-IBM technical support telephone numbers.
            The IBM PC Company Automated Fax System documents list.
            An acronyms and abbreviations list.
   3. IBM OS Assistant (ASST-OS.INF):
            OS/2 product industry awards and reviews.
            Thousands of OS/2 and DOS Q&As.
            OS/2 and DOS technical tips.
            OS/2 compatibility tables.
            A list of OS/2-related BBSes.
            A list of OS/2-related PC User Groups.
   4. IBM PC Marketing Assistant (ASST-MKT.INF):
            IBM product industry awards and reviews.
            IBM PC Factory Outlet catalog.
            IBM PC hardware and software part number lists and descriptions.
            IBM publication part numbers and ordering information.
            Feature Code/Part Number cross-reference.
            Promotion and upgrade information.
   5. IBM PC Options Assistant (ASST-OPT.INF):
            Options industry awards and reviews.
            Hardware and software Q&As for monitors, adapters, drives, and
           other PC-related options
            Hardware technical tips.
   6. IBM PC Series Assistant (ASST-PC.INF):
            Hardware Q&As.
            Hardware technical tips.
            Lengthy technical specifications documents for PC 300/700 series
           systems, past and present.
   7. IBM PC Servers Assistant (ASST-SRV.INF):
            Network product industry awards and reviews.
            Hardware and software Q&As for IBM servers and related network
           software.
            Hardware and software technical tips.
            Lengthy technical specifications documents for PC Server
           300/500/700 series, and PS/2 Server 85/95/195/295 systems, past and
           present.
   8. IBM PC Service Assistant (ASST-SVC.INF):
            Hardware and OS/2 error code information.
            Latest DOS and OS/2 CSD information.
            Latest Reference and Diagnostic Diskettes list.
            Micro Channel adapter ADF file cross-reference.
            PC System/Monitor warranty information.
            Hardware and software service tips and Q&As, and more.
   9. IBM PowerPC Assistant (ASST-PPC.INF) [to be added at a future date]:
            PowerPC product industry awards and reviews.
            Hardware and software Q&As.
            Hardware and software technical tips.
            Lengthy technical specifications documents for PowerPC-based PC
           and ThinkPad systems, past and present.
  10. IBM PS/2 Assistant (ASST-PS2.INF):
            Hardware and software Q&As
            Hardware and software technical tips
            Lengthy technical specifications documents for PS/2 systems
           (except PS/2 servers)
  11. IBM ThinkPad Assistant (ASST-TP.INF):
            ThinkPad product industry awards and reviews.
            Hardware and software Q&As
            Hardware and software technical tips
            Lengthy technical specifications documents for ThinkPad systems
           (except PowerPC-based), past and present.
  12. IBM ValuePoint Assistant (ASST-VP.INF):
            Hardware and software Q&As
            Hardware and software technical tips
            Lengthy technical specifications documents for ValuePoint systems

 The reason for having a number of different books instead of just one large
 one is two-fold.  First, there is so much information provided that it might
 be awkward to use, and would take longer to search through than smaller books.
 And second, by dividing up all of this information into related subject
 matter, those who don't need certain categories of information (such as
 service tips, for example), can delete entire books to save disk space.
 Besides, these files can be logically linked together and viewed or searched
 as one large book, at your preference.  (This procedure is explained in the
 accompanying ASST.TXT file.)  For convenience, the files will be collectively
 called the "IBM PC Assistant" throughout the rest of this document.

 Not only is the information more "centrally located" this way than distributed
 across all the individual documents, but due to its electronic nature, the
 specific information you seek can be found more quickly and easily.  The
 source information is compiled into binary files that take roughly half as
 much disk space as ASCII files would.  And since the compiler also creates a
 "data dictionary" of all words and numbers anywhere in the files, all
 occurrences can be found and displayed on-screen in only a few seconds via the
 search facility provided.  In addition, hypertext links (hyperlinks) allow you
 to jump from section to section within a book without ever having to return to
 the Table of Contents.  Hyperlinks are also used to display popup footnote
 windows at the point of the footnote reference, rather than making you have to
 scroll down to the bottom of a page, or the end of a chapter, to find the
 footnoted information.

 The IBM PC Assistant is created by compiling a scripted ASCII text file, using
 the Information Presentation Facility (IPF) Tag Language and Compiler.  They
 are included in the OS/2 2.1 or 3.0 Developer's Toolkits, IBM Hyperwise editor
 (P/N 30H1731--3.5"), and IBM C Set++ First Step V2.1 (P/N 82G3744--3.5";
 82G3746--CD-ROM") packages, among others.  The IBM PC Assistant requires OS/2
 1.2 or later to operate, because it uses the OS/2 VIEW.EXE command to access
 the files.  This is the same command used to display the online OS/2 Command
 Reference.  Since both files were created with the same compiler, and are
 displayed by the same command, they look and act very much alike.  So if you
 know how to use one, you also know how to use the other.

 Note:  The IBM PC Assistant was tested, and does work, across an OS/2 LAN
 Server V1.2 or later network, relieving the need for disk space on the
 requester, not to mention not having to keep all those requesters updated with
 the latest versions of the IBM PC Assistant books.  (For instructions on
 Setting Up an OS/2 LAN Server to Share Online Books, see the document by the
 same name in the Networking Tips section of the PS Technical Assistant.)

  HOW TO USE THE IBM PC ASSISTANT

 Note:  The following instructions are written for users of the native OS/2
 online book version of these publications.  Most of the explanations will
 apply equally to the World Wide Web version of the books, however some minor
 differences may exist.

 Before you begin to use this tool, it is helpful to understand how to:

     Expand the Contents to see all available topics
     Obtain additional information for a highlighted word or phrase
     Use action bar choices.

 How to use the Table of Contents
 When the Contents window first appears, some topics have a plus (+) sign
 beside them.  The plus sign indicates that additional topics are available.

 To expand the Contents if you are using a mouse, click on the plus sign.  If
 you are using the keyboard, use the Up or Down Arrow key to highlight the
 topic, and press the plus (+) key. For example, Part Number / Pricing /
 Availability List has a plus sign beside it.  To see the complete list of Part
 Numbers, etc, click on the plus sign or highlight that topic and press the
 plus (+) key.

 To view a topic, double-click on the topic (or press the Up or Down Arrow key
 to highlight the topic, and then press the Enter key).

 Note:  To exit from any panel (window), including this one, simply press the
 ESC key, or double-click on the icon to the left of the panel title bar (NOT
 the one to the left of the IBM PC Assistant title bar, or you will close the
 IBM PC Assistant).  This will return you to the point from which you entered
 the panel (either the Table Of Contents or another panel).  This may be done a
 number of times in succession to step back through layers of panels, or until
 the TOC is reached.

 How to obtain additional information
 After you select a topic, the information for that topic appears in a window.
 Words, phrases, or numbers highlighted like this or this indicate that
 additional information is available, either in the form of a footnote, or
 sometimes an entire section.  Hyperlinks are used in some areas to help you
 jump from one section of a document directly to another, without having to
 return to a menu. (If you don't find this color to be easily identifiable as a
 hyperlink, you may change the color, as described below.)  Use the mouse, or
 Tab and Enter keys, to move between all the hyperlinks within a document.  For
 example:

 Certain words in the following section are highlighted in this way.  If you
 are using a mouse, double-click on the highlighted words.  If you are using a
 keyboard, press the Tab key to move from one highlighted word to the next, (or
 Shift-Tab to backup) and then press the Enter key.  Additional information
 will appear in a pop-up window.

 Note:  The windows that pop up when you double-click on a hypertext link are
 sizable.  Simply drag the sides or corners of the windows to the desired size
 and shape, just as you would any other PM window.

 Note:  Headings are assigned the color red throughout the IBM PC Assistant.
 The Change Bars (|), which indicate additions or revisions since the last
 release of the IBM PC Assistant, are also highlighted in red to make them
 easier to find.  (All other colors are as set by your OS/2 Control Panel (OS/2
 1.x), or Scheme Palette (OS/2 2.x) selections.  If a color, or combination of
 colors, is not to your liking, you may change them to something more pleasing.
 The operative choices are: Help Text, Help Background, and Help Highlight.)

 Tip:  An easy way to find ALL changes since the last version is to Search for
 the Change Bar character.  This can be typed by holding the Shift key while
 typing the backslash key (on U.S. English 101-key keyboards--other keyboards
 may differ).

 How to use the Action Bar options
 A number of choices are available for managing information presented in the
 IBM PC Assistant.  If you want to see more information about these choices,
 click on the name of the choice (or press the Tab key to move to the choice
 and press Enter).

 Search
       Allows you to find occurrences of a word or phrase in the current topic,
       selected topics, or all topics. (This choice is available from the
       Services pull-down.)

 Print
       Allows you to print one or more topics. (This choice is available from
       the Services pull-down.)

 Copy
       Allows you to copy a topic you are viewing to a file you can edit. (This
       choice is available from the Services pull-down.)

 Options
       Allows you to change the way your Table of Contents is displayed.

 Bookmark (This choice is available from the Contents pull-down.)
       Allows you to set a placeholder so you can retrieve information of
       interest to you. (This choice is available from the Services pull-down.)

 Help
       Provides online help panels for using the Help facility.

 How to use the Push Buttons
 The Search, Print, and Index push buttons arrayed across the bottom of the
 panel duplicate the functions of the same-name Action Bar options.  In
 addition there are buttons marked Previous, Contents, Back, and Forward.
 Previous simply steps you back through the series of panels you have just
 looked at, in the reverse order of how you originally looked at them.  By
 contrast, Back, uses the Table of Contents to step backward through all the
 sections listed in the TOC, in reverse order, from the current section.
 Forward, naturally, steps you forward through all the TOC entries.  And
 Contents pops the TOC list on top of whatever panel you are currently viewing.

 To see the IBM PC Assistant Disclaimer and Trademark Information, select:

  Disclaimers & Trademarks


ΓòÉΓòÉΓòÉ 5.1. PS/2 Assistant - What's New? ΓòÉΓòÉΓòÉ

To see what has changed in any IBM PC Assistant series book since the last
edition, just perform a search, using the "change bar" character (|). This is
the "shift-backslash" character (above the Enter key on 101-key keyboards).
All changes in the IBM Assistant are reflected by a change bar in the right
margin of tabular information.  Textual info (paragraphs, Q&As, etc.) have
change bars to the left of the text to indicate additions, and at the end of
the text to reflect modifications.  All change bars are colored red to make
them easier to spot.

Reminder:  If you are not familiar with how to search for information in the
IBM PC Assistant books, double-click here.

Note:  For a complete history of changes to all IBM PC Assistant books, refer
to the History of Changes menu item in the IBM General Info Assistant.


ΓòÉΓòÉΓòÉ 5.2. Disclaimers and Trademark Info ΓòÉΓòÉΓòÉ

Return to the What is the IBM PC Assistant? - Tutorial section.

* * * * * * * DISCLAIMER OF LIABILITY * * * * * * *

IBM is not responsible for any technical inaccuracies or typographical errors
that might occur in this publication.

INTERNATIONAL BUSINESS MACHINES CORPORATION PROVIDES THIS PUBLICATION "AS IS"
WITHOUT ANY WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE.  THE EVALUATION AND USE OF THIS INFORMATION IS A CUSTOMER
RESPONSIBILITY.  IN NO EVENT WILL IBM BE LIABLE FOR ANY DAMAGES, INCLUDING ANY
LOST PROFITS, LOST SAVINGS, OR ANY OTHER INCIDENTAL OR CONSEQUENTIAL DAMAGES
ARISING FROM THE USE OR INABILITY TO USE ANY OF THE INFORMATION PROVIDED HEREIN
EVEN IF IBM HAS BEEN ADVISED OF DAMAGES IN ADVANCE.  SOME STATES DO NOT ALLOW
THE LIMITATION OR EXCLUSION OF LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL
DAMAGES, SO THE ABOVE LIMITATIONS MAY NOT APPLY TO YOU.

It is possible that this material contains references to, or information about,
IBM products, programs, or services that are not announced or available in
every country in which IBM operates.  Such references or information must not
be construed to mean that IBM intends to announce or make available such
products, programs, or services in any country in which they are not currently
announced or available.  The information herein is intended for use only in the
United States, notwithstanding there may be many similarities between products
marketed worldwide.

Any reference to an IBM product in this document is not intended to state or
imply that only IBM's product may be used.  Any functionally equivalent product
may be used instead, provided that use is in accordance with the manufacturer's
guidelines for that product.  Mention of a non-IBM product or vendor does not
constitute an express or implied recommendation or endorsement of IBM of any
particular product, service, company, or technology.  IBM takes no
responsibility whatsoever with regard to the selection, performance, or use of
any reference non-IBM products.  All understanding, agreements, or warranties
must take place directly between the vendor and prospective users.

Prices and specifications are subject to change at any time without notice.
Prices are provided for information purposes only, and shall not limit in any
way the remarketers' ability to set their own prices for IBM products.

The contents of this online book are copyrighted by International Business
Machines Corporation.

                     * * * * * * * TRADEMARKS * * * * * * *

The following trademarks apply to all information in this book:

     1-2-3, Agenda, Freelance, Lotus, Lotus Notes, and Magellan are registered
      trademarks of Lotus Development Corporation.
     1-2-3/G and Symphony are trademarks of Lotus Development Corporation.
     386 MAX, 386 MAX Professional, and Qualitas are trademarks of Qualitas,
      Incorporated.
     3+ Open and 3Com are trademarks of 3Com Corporation.
     80286, 80386, 80486, and i486 are trademarks of Intel Corporation.
     Adobe Type Manager and ATM are registered trademarks of Adobe Systems,
      Incorporated.
     Advanced Netware and SFT are trademarks of Novell, Incorporated.
     ActionMedia is a trademark of Intel Corporation.
     AIX is a Registered trademark of International Business Machines
      Corporation.
     AIXwindows is a trademark of International Business Machines Corporation.
     Aldus and Pagemaker are registered trademarks of Aldus Corporation.
     AMBRA is a trademark of ICPI Ltd.
     America Online is a registered service mark of America Online,
      Incorporated.
     Apple is a registered trademark of Apple Computer, Incorporated.
     AppleTalk is a trademark of Apple Computer, Incorporated.
     Application System/400 and AS/400 are registered trademarks of
      International Business Machines Corporation.
     APPN is a trademark of International Business Machines Corporation.
     Aria is a registered trademark of Sierra Semiconductor, Incorporated.
     Artisoft is a trademark or registered trademark of Artisoft,
      incorporated.
     Ashton-Tate is a registered trademark of Ashton-Tate.
     AST is a trademark of AST Research, Incorporated.
     ATI is a registered trademark of ATI Technologies.
     AT&T is a registered trademark of American Telephone and Telegraph.
     Audio Visual Connection is a trademark of International Business Machines
      Corporation.
     Audiovation is a trademark of International Business Machines
      Corporation.
     Audio-Technica is a registered trademark of Audio-Technica, U.S.,
      Incorporated.
     AutoCAD and AutoSketch are registered trademarks of Autodesk,
      Incorporated.
     BASIC/2, C/2, COBOL/2, FORTRAN/2, Macro Assembler/2, and Pascal/2 are
      trademarks of International Business Machines Corporation.
     BIX is a registered trademark of General Videotex Corporation.
     Blue Lightning is a trademark of International Business Machines
      Corporation.
     BookManager is a trademark of International Business Machines
      Corporation.
     Bookshelf is a registered trademark of Microsoft Corporation.
     Borland is a trademark of Borland International.
     C Set/2 is a registered trademark of International Business Machines
      Corporation.
     C Set++ is a trademark of International Business Machines Corporation.
     CATIA is a trademark of Dassault Systemes
     Chargecard is a trademark of All Computers, Incorporated.
     CICS and CICS/2 are trademarks of International Business Machines
      Corporation.
     Cirrus Logic is a registered trademark of Cirrus Technology.
      Incorporated.
     COBOL/2, COBOL/2 Workbench, and Micro Focus are trademarks of Micro
      Focus.
     COMDEX is a registered trademark of The Interface Group, Incorporated.
     Common User Access and CUA are trademarks of International Business
      Machines Corporation.
     Communications Manager/2 is a registered trademark of International
      Business Machines Corporation.
     Compaq is a registered trademark of Compaq Computer Corporation.
     CompuServe is a registered trademark of CompuServe, Incorporated.
     Computer Associates is a registered trademark of Computer Associates,
      International, Incorporated.
     Compton's Interactive Encyclopedia is a trademark of Compton's NewMedia,
      Incorporated.
     Current is a trademark of International Business Machines Corporation.
     D40CHK is a trademark of Dialogic Corporation.
     DataHub is a trademark of International Business Machines Corporation.
     dBASE is a registered trademark of Borland International.
     DB2 is a registered trademark of International Business Machines
      Corporation.
     DB2/2 and Database 2 are trademarks of International Business Machines
      Corporation.
     DDCS/2 and Distributed Database Connection Services are trademarks of
      International Business Machines Corporation.
     DEC VT220/VT100/VT52 are trademarks of Digital Equipment Corporation.
     DeScribe is a trademark of DeScribe, Incorporated.
     DeskJet and PaintJet are registered trademarks of Hewlett-Packard
      Company.
     Diablo is a trademark of Xerox Corporation.
     Diamond Fine is a trademark or registered trademark of Lexmark
      International, Incorporated.
     Diconix is a trademark of Eastman Kodak Corporation.
     DIF is a registered trademark of Lotus Development Corporation.
     Digital Research is a registered trademark of Digital Research,
      Incorporated.
     DiscoverEducation is a trademark of International Business Machines
      Corporation.
     DisplayWrite is a registered trademark of International Business Machines
      Corporation.
     DOS Merge is a trademark of International Business Machines Corporation.
     DOS Server/AADU is a trademark of International Business Machines
      Corporation.
     Dragon Systems is a trademark of Dragon Systems, Inc.
     DRDA is a trademark of International Business Machines Corporation.
     DVI is a registered trademark of Intel Corporation.
     DXF is a registered trademark of AutoDesk Incorporated.
     EASEL is a registered trademark of Easel Corporation.
     EasyServ is a trademark of International Business Machines Corporation.
     Epson is a registered trademark of Seiko Epson Corporation.
     Etherand is a trademark of International Business Machines Corporation.
     Ethernet is a registered trademark of Xerox Corporation.
     Excelsior is a registered trademark of Excelsior Software, Incorporated.
     Express Publisher is a trademark of Power Up Software Corporation.
     Extended Services for OS/2 is a trademark of International Business
      Machines Corporation.
     FaxWorks is a trademark of SofNet Incorporated.
     GDDM is a trademark of International Business Machines Corporation.
     GEM and GEM/3 are trademarks of Digital Research, Incorporated.
     Grandma & Me is a trademark of Mercer Mayer and Broderbund Software,
      Incorporated.
     Harvard is a trademark of Software Publishing Corporation.
     Hayes is a registered trademark of Hayes Microcomputer Products,
      Incorporated.
     HelpWare and HelpCenter are registered trademarks of International
      Business Machines Corporation.
     Hitachi is a registered trademark of Hitachi Corporation.
     HP is a trademark of Hewlett-Packard Corporation.
     HPGL and Hewlett-Packard are registered trademarks of Hewlett-Packard
      Corporation.
     HSC Interactive! Presentation Tool is a trademark of HSC Software.
     i486 is a trademark of Intel Corporation.
     IBM is a registered trademark of International Business Machines
      Corporation.
     IBMLink is a trademark of International Business Machines Corporation.
     IEEE is a registered trademark of The Institute of Electrical and
      Electronics Engineers.
     ImagEdit is a trademark of International Business Machines Corporation.
     ImagePlus is a registered trademark of International Business Machines
      Corporation.
     Indeo is a registered trademark of Intel Corporation.
     Independence Series is a trademark of International Business Machines
      Corporation.
     InfoWindow is a trademark of International Business Machines Corporation.
     Intel is a registered trademark of Intel Corporation.
     Internet is a registered trademark of Internet, Incorporated.
     ISO is a registered trademark of International Organization for
      Standardization.
     Jet Cards and Voice User are trademarks of Cylogic, Incorporated.
     Journalist is a trademark of PED Software Corporation.
     Kodak is a trademark of Eastman Kodak Company.
     LAN Manager is a trademark or registered trademark of Microsoft
      Corporporation.
     LAN Server is a registered trademark of International Business Machines
      Corporation.
     LANSchool is a trademark of Lan Fan Technologies, Incorporated.
     LANStreamer is a trademark of International Business Machines
      Corporation.
     LANtastic is a trademark or registered trademark of Artisoft,
      incorporated.
     LapLink is a trademark of Traveling Software, Incorporated.
     LapStation is a trademark of Axonix Corporation.
     LaserJet and LaserJet Plus are registered trademarks of Hewlett-Packard
      Corporation.
     Lattice is a trademark of Lattice, Incorporated.
     Lexmark is a trademark of Lexmark International, Incorporated.
     LinkWay is a trademark of International Business Machines Corporation.
     LocalTalk is a trademark of Apple Computer, Incorporated.
     MarkNet and MarkVision are trademarks or registered trademarks of Lexmark
      International, Incorporated.
     MCS MusicRack is a trademark of Animotion Development Corporation.
     Micro Channel is a registered trademark of International Business
      Machines Corporation.
     Micro Focus is a trademark of Micro Focus Limited.
     Microsoft and Microsoft C are registered trademarks of Microsoft,
      Incorporated.
     Money is a registered trademark of Time, Incorporated.
     Music Mentor is a trademark of Music Technology Associates.
     Motif, Open Software Foundation, and OSF are registered trademarks of
      Open Software Foundation.
     Monologue for Windows is a registered trademark of First Byte,
      Incorporated.
     Multimedia Presentation Manager/2 is a trademark of International
      Business Machines Corporation.
     MultiView is a trademark of JSB Computer Systems Limited.
     Music Mentor is a trademark of Music Technology Associates.
     Mwave, PhoneFX, and WindSurfer are trademarks of International Business
      Machines Corporation.
     M-Motion Video Adapter/A is a trademark of International Business
      Machines Corporation.
     NEC is a registered trademark of NEC Corporation.
     Network File System and NFS are trademarks of Sun Microsystems,
      Incorporated.
     NextStep is a trademark of NeXT, Incorporated.
     NetView is a registered trademark of International Business Machines
      Corporation.
     NetWare, NetWare Server, Novell, and Personal NetWare are registered
      trademarks of Novell, Incorporated.
     NFS is a registered trademark of Sun Microsystems, Incorporated.
     NTI is a registered trademark of Northern Telecom International.
     OfficeVision is a trademark of International Business Machines
      Corporation.
     Object Management Group and OMG are registered trademarks of Object
      Management Group, Incorporated.
     Operating System/2 and OS/2 are registered trademarks of International
      Business Machines Corporation.
     Operating System/400 and OS/400 are registered trademarks of
      International Business Machines Corporation.
     OS/2 Crash Protection is a trademark of International Business Machines
      Corporation.
     ORACLE is a registered trademark of Oracle Corporation.
     ORACLE7 and ORACLE Server are trademarks of Oracle Corporation.
     OverDrive is a trademark of Intel Corporation.
     PageMaker is a registered trademark of Aldus Corporation.
     PageScanner is a trademark of International Business Machines
      Corporation.
     Paradox is a registered trademark of Borland International, Incorporated.
     PC Card Director is a trademark of International Business Machines
      Corporation.
     PC Mouse is a trademark of Mouse Systems Corporation.
     PCMCIA is a trademark of the Personal Computer Memory Card International
      Association.
     PC-MOS is a trademark of The Software Link.
     PCjr is a trademark of International Business Machines Corporation.
     PCL is a registered trademark of Hewlett-Packard Corporation.
     PCradio is a trademark of International Business Machines Corporation.
     Pen for OS/2 is a registered trademark of International Business Machines
      Corporation.
     PenAssist is a trademark of International Business Machines Corporation.
     PenDOS is a registered trademark of Communication Intelligence
      Corporation.
     Pentium is a trademark of Intel Corporation.
     Personal Computer AT and AT are registered trademarks of International
      Business Machines Corporation.
     Personal Computer XT, PC XT, and XT are trademarks of International
      Business Machines Corporation.
     Personal Computer XT Model 286 is a trademark of International Business
      Machines Corporation.
     Personal Decision Series is a trademark of International Business
      Machines Corporation.
     Personal System/1 and PS/1 are registered trademarks of International
      Business Machines Corporation.
     Personal System/2 and PS/2 are registered trademarks of International
      Business Machines Corporation.
     PFS: WindowWorks is a trademark of Softkey International, Incorporated.
     Photo CD is a trademark of Eastman Kodak Company.
     PictureGrade is a trademark or registered trademark of Lexmark
      International, Incorporated.
     Platinum is a registered trademark of Advanced Business Microsystems,
      Incorporated.
     PostScript, Encapsulated PostScript, and EPS are registered trademarks of
      Adobe Systems, Incorporated.
     PowerPC, PowerPC 601, PowerPC 603, and PowerPC 604 are trademarks of
      International Business Machines Corporation.
     PowerServer and PowerStation are trademarks or registered trademarks of
      International Business Machines Corporation.
     Presentation Manager is a registered trademark of International Business
      Machines Corporation.
     PRODIGY is a registered service mark and registered trademark of Prodigy
      Services Company.
     PROFS is a registered trademark of International Business Machines
      Corporation.
     Proprinter is a trademark of International Business Machines Corporation.
     PS Assistant, PS General Info Assistant, PS Marketing Assistant, PS
      Service Assistant, and PS Technical Assistant are trademarks of
      International Business Machines Corporation.
     PS/2 Assistant, PS/2 General Info Assistant, PS/2 Marketing Assistant,
      PS/2 Service Assistant, and PS/2 Technical Assistant are trademarks of
      International Business Machines Corporation.
     PS/ValuePoint is a trademark of International Business Machines
      Corporation.
     Query Management Facility is a trademark of International Business
      Machines Corporation.
     Quicken is a registered trademark of Intuit.
     Quickwriter is a registered trademark of International Business Machines
      Corporation.
     Quietwriter is a registered trademark of International Business Machines
      Corporation.
     R:BASE and Microrim are registered trademarks of Microrim, Incorporated.
     Recording Session is a trademark of Midisoft Corporation.
     Reuters is a registered service mark of Reuters Limited.
     RISC System/6000 and RISC/6000 are registered trademarks of International
      Business Machines Corporation.
     RPG II Application Platform is a trademark of International Business
      Machines Corporation.
     SAA is a trademark of International Business Machines Corporation.
     Scanmaster is a trademark of Howtek, Incorporated.
     SCO is a trademark of Santa Cruz Operations, Incorporated.
     Screen Reader is a trademark of International Business Machines
      Corporation.
     Secret Weapons of the Luftwaffe, The Secret of Monkey Island, and Loom
      are trademarks of LucasArts Entertainment Company.
     Select-a-Bus is a trademark of International Business Machines
      Corporation.
     Select-a-Keyboard is a trademark of International Business Machines
      Corporation.
     Select-a-System is a trademark of International Business Machines
      Corporation.
     Skill Dynamics is a trademark of International Business Machines
      Corporation.
     SLC is a trademark of International Business Machines Corporation.
     SmallTalk and SmallTalk V/PM are trademarks of Digitalk Corporation.
     Smart Video Recorder is a trademark of Intel Corporation.
     SOMobjects is a trademark of International Business Machines Corporation.
     Sony is a registered trademark of Sony Corporation.
     Sound Blaster is a trademark of Creative Labs, Incorporated.
     Sound Source is a registered trademark of The Walt Disney Company.
     SpeechViewer is a trademark of International Business Machines
      Corporation.
     SQL/DS is a trademark of International Business Machines Corporation.
     Storyboard is a trademark of International Business Machines Corporation.
     SuperStor/DS is a trademark of AddStor, Incorporated.
     SYLK is a trademark of Microsoft Corporation.
     Symphony is a registered trademark of Lotus Development Corporation.
     System Application Architecture is a registered trademark of
      International Business Machines Corporation.
     System V is a trademark of AT&T.
     System/370 and S/370 are trademarks of International Business Machines
      Corporation.
     System/390 and S/390 are trademarks of International Business Machines
      Corporation.
     Taligent is a trademark of Taligent, Incorporated.
     The Software Toolworks is a registered trademark of The Software
      Toolworks, Incorporated.
     ThinkPad is a registered trademark of International Business Machines
      Corporation.
     ThinkPad Proven is a service mark of International Business Machines
      Corporation.
     Times Roman, Helvetica, Palatino, and Optima are trademarks of Linotype
      AG and/or its subsidiaries.
     Toshiba is a registered trademark of Toshiba Corporation.
     TrackPoint, TrackPoint II and TrackPoint III are trademarks of
      International Business Machines Corporation.
     TrackWrite is a trademark of International Business Machines Corporation.
     Trinitron is a trademark of Sony Corporation.
     True Type is a registered trademark of Apple Computer, Incorporated.
     Type 1 is a registered trademark of Adobe Systems, Incorporated.
     Undersea Adventure is a service mark of Knowledge Adventure,
      Incorporated.
     Ultimedia is a registered trademark of International Business Machines
      Corporation.
     Ultimotion is a trademark of International Business Machines Corporation.
     UNIX and OpenLook are registered trademarks of UNIX System Laboratories,
      Incorporated.
     Video 7 is a registered trademark of Headland Technology.
     Video Blaster is a trademark of Creative Labs, Incorporated.
     Video for Windows is a trademark of Microsoft Corporation.
     Vines is a registered trademark of Banyan Systems, Incorporated.
     VoiceType is a trademark of IBM Corporation.
     Western Digital is a registered trademark of Western Digital Corporation.
     Where is Carmen Sandiego? is a registered trademark of Broderbund
      Software, Incorporated.
     Windows and Microsoft are registered trademarks of Microsoft Corporation.
     Windows NT is a trademark of Microsoft Corporation.
     Windows Sound System is a trademark of Microsoft Corporation.
     WinFax Pro is a trademark of Delrina Technology, Incorporated.
     WIN-OS/2 is a trademark of International Business Machines Corporation.
     WordPerfect is a registered trademark of WordPerfect Corporation.
     WordStar is a registered trademark of WordStar International Corporation.
     Workplace Shell is a trademark of IBM Corporation.
     Works for Windows is a trademark of Microsoft Corporation.
     XENIX is a registered trademark of Microsoft Corporation.
     XGA is a registered trademark of International Business Machines
      Corporation.
     Xircom is a trademark of Xircom, Incorporated.

 All other products are trademarks, registered trademarks, or service marks of
 their respective companies.


ΓòÉΓòÉΓòÉ 5.3. IBM PC Assistant Series Survey ΓòÉΓòÉΓòÉ

Here's your chance to tell IBM what to do!  If you like the IBM PC Assistant
series of books (ThinkPad Assistant, OS Assistant, Marketing Assistant, etc.),
say so.  If you would like to see new information, or different ways of
organizing the existing information, say so.  If you think some information is
a complete waste of space, let me know (and why you think so).  Your feedback
is valuable, and will help direct the future of the IBM PC Assistant. (No
guarantees that any or all suggestions will be implemented, but if you don't
ask you'll never know.)

You can return this survey by printing and mailing it to the address provided,
or by using Ctrl-Insert on the survey screen to copy it to the OS/2 clipboard
and then pasting it into a word processor and filling it out, PROFS and IBMMail
users can paste it into a note and send it to me at: MCHAPMAN at RALVM8 for
IBMers, or USIB3ZLD at IBMMAIL for external customers with IBMLink access.
CompuServers can reach me at: 72662,3663.  Or [e-mail] for
Internet users.  And you can even fax it to me (isn't technology wonderful?) at
919-517-1229.

To take the IBM PC Assistant Survey survey, double-click here.


ΓòÉΓòÉΓòÉ 5.3.1. IBM PC Assistant Survey! ΓòÉΓòÉΓòÉ

                              IBM PC Assistant(TM)

Please take a few moments to let us know what you think of the IBM PC
Assistant.  Feel free to use the area at the end of this form to record any
other comments you would like to add.  We appreciate your input.  Your
responses and comments will help make this a better tool!  The first section
contains questions that are vital to have answered.  If you are short on time
feel free to skip the second set of questions, but the more information we get
the better!  (Note:  IBM employees need not answer questions 6, 7, and 11.)

But first things first.  Who are you?

Name: _________________________  Title/Position: _____________________________
Company Name/Organization/Location: __________________________________________
E-mail ID (if applicable): ___________________________________________________
End-User ____  Customer Helpdesk ____  Remarketer ____  IBM Support _______

* * * * *

Section I - ESSENTIAL INFORMATION:
1) How long have you been using the IBM PC Assistant?  _______________________
1a) Which edition of the IBM PC Assistant are you using?  ____________________
1b) What version of OS/2 are you using?  _____________________________________
2) How helpful overall do you find the IBM PC Assistant to be?
  (1-5 scale, where 1 = Extremely Helpful, 5 = Not at all) ______
3) How many total USERS of the IBM PC Assistant are there IN YOUR ORGANIZATION,
or AT YOUR LOCATION?  (Either by network attachment or individual copies)
  _____ Total persons     (____ Network-attached   ____ Separate copies)
4) How many additional HOURS of research time per WEEK do you feel it would
take you to answer the questions the Assistant presently answers for   everyone
in your organization, if you didn't have it?
  ____ (Hrs)
5) How many additional QUESTIONS per WEEK do you feel you would have to
research that the Assistant presently answers for everyone in your
organization, if it ceased to exist?
  ____ (Questions)

* * * * *

If you are an IBM authorized remarketer, or IBM employee, please   answer the
following questions:

6) As a result of using the IBM PC Assistant, have you made SALES of IBM
products you might not have otherwise made?
  Yes ____     No ____     Not in a sales position ____
  If Yes, estimated value of these sales  $__________  (in U.S. dollars, or
specify currency)
7) As a result of using the IBM PC Assistant has your, and your customers',
satisfaction with IBM products and/or IBM support increased?
  Yes ____     No ____
8) As a result of using the IBM PC Assistant, are you more likely to recommend
IBM products to your customers and acquaintances than before?
  Yes ____     No ____

* * * * *

If you are a customer of IBM products, please answer the following questions:

6) As a result of using the IBM PC Assistant, have you made PURCHASES of IBM
products you might not have otherwise made?
  Yes ____     No ____
  If Yes, estimated value of these purchases  $__________  (in U.S. dollars,
or specify currency)
7) As a result of using the IBM PC Assistant, has your satisfaction with IBM
products and/or IBM support increased?
  Yes ____     No ____
8) As a result of using the IBM PC Assistant, are you more likely to recommend
IBM products to your co-workers and acquaintances than before?
  Yes ____     No ____

Section II - NOT ESSENTIAL, BUT VERY HELPFUL INFORMATION: 9) Ideally, how often
would you like to see the IBM PC Assistant updated:
  Twice-monthly ____   Once-monthly ____   Other ________________________

General comments, or suggestions for improvements:

______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________

When completed, please send a copy to me at:
1) E-mail via PROFS/IBMLink at RALVM8(MCHAPMAN) for IBMers, or
IBMMAIL(USIB3ZLD) for external customers with IBMLink access, or
2) E-mail via Internet ([e-mail]), or
3) E-mail via CompuServe (72662,3663), or
4) Via the IBM PC Company/TA BBS (919-517-0001) on-line survey (type Q at any
main command line), or
5) By Fax [phone]), or
6) By mail at the following address:
                Mark Chapman
                IBM Corporation
                Internal Zip 8V6/203
                P.O. Box 12195
                Research Triangle Park, NC 27709


ΓòÉΓòÉΓòÉ 6. Now an Online Database on CompuServe and the WWW ΓòÉΓòÉΓòÉ

If you know any users of IBM PC-related products who could benefit from the
information in the IBM PC Assistant, but who are not OS/2 users, another
alternative is the searchable databases on CompuServe and the World Wide Web.

The IBM PC Assistant Database on CompuServe, which contains most of the
information in the various IBM PC Assistant books in an ASCII format (so no
hyperlinks or bitmap images), can be reached with the GO word PCASSIST.  (You
also can reach it via GO IBM, then select the Technical Services and Support,
and IBM PC Assistant Database menu options.)  Of course, this only helps
CompuServe users, but it allows users of almost any operating system to access
the data via CompuServe.

The latest addition is a World Wide Web version of the IBM PC Assistant that is
be accessible from any of the online services, as well as directly.  Because it
uses an INF-to-HTML conversion tool to create the web page, it looks just like
the INF files in terms of the structure (data organization, pushbutton
placement, etc.).  Hyperlinks work like they do on other web pages.  The only
limitation is that the imbedded bitmap images from the INF file are not
available in the HTML version.  Otherwise it should work exactly like the INF
version.  To see it, point your browser to the Team-OS/2 web page at
http://www.teamos2.org/ibm/os2support/.  There is a link near the top of that
page to Online BOOKS and NEWSLETTERS.  (There are quite a few other books to
choose from on that web page.)  Or go directly to:
http://www.teamos2.org/ibm/os2support/books/assisttoc.html to bypass the first
panel. |

Another service brought to you by the nice people on the IBM PC Assistant team.

Also, the .INF files may be downloaded from the following electronic sources:

      World Wide Web Download
       IBM PC Company BBS, http://www.pcco.ibm.com/files.html
       IBM Software Manufacturing Solutions,
      http://www.software.ibm.com/ps/products/os2/info/pcasst
       OS/2 Shareware BBS, http://www.os2bbs.com

      FTP Download
       IBM PC Company BBS, ftp.pcco.ibm.com/pub/pccbbs/os2_util
       IBM Software Manufacturing Solutions,
      ftp.software.ibm.com/ps/products/os2/info/pcasst (198.17.57.66)

      BBS Download
       IBM PC Company BBS (919-517-0001)
       IBM OS/2 BBS/TalkLink, Software Download library (800-547-1283 for
      subscription info)
       OS/2 Shareware BBS (703-385-4325)
       Various other BBSes with significant OS/2 content

      CompuServe Download
       IBM OS/2 Support forum - All files (GO OS2SUPPO, section 23 (IBM
      Files))
       IBM Options By IBM Forum - IBM PC Options Assistant and General Info
      Assistant (GO IBMOBI, Customer Uploads section) |
       IBM PC Servers Forum - IBM PC Servers Assistant and General Info
      Assistant (GO IBMSVR, User Uploads section) |
       IBM PS/1 & Aptiva Forum - IBM Consumer PC Assistant and General Info
      Assistant (GO APTIVA, User Uploads section) |
       IBM PS/2 Forum - IBM PS/2 Assistant and General Info Assistant (GO
      IBMPS2, User Uploads section) |
       IBM ThinkPad Forum - IBM ThinkPad Assistant, General Info Assistant,
      Marketing Assistant, and OS Assistant (GO THINKPAD, User Uploaded Files
      section) |
       IBM ValuePoint/PC Desktop Forum - IBM ValuePoint Assistant, IBM PC
      Series Assistant, and General Info Assistant (GO VALUEPOINT, User Uploads
      section) |

 Note:  When looking for the Assistant files on the above sites, look for
 filenames like PCASST.ZIP, ASST*.ZIP, ASST*.INF, ASST.ICO, and ASST.TXT.

      Internal IBM Download
       PCWIN tools disk (PS2ASST3 PACKAGE)

 Note:  Some of these sources may lag a few days behind others.


ΓòÉΓòÉΓòÉ 7. PS/2 Technical Q&As ΓòÉΓòÉΓòÉ

The following sections contain Q&As related to PS/2 systems, PS/2 E systems,
and related options.   Tips and Q&As are differentiated primarily by length.
Tips are generally lengthy documents, while Q&As can be answered briefly.

For more detailed information, refer to the technical spec documents in the PS
Technical Specifications #1 and #2 books.

Choose the section to which you wish to jump, below:

 Q&As
 PS/2 Model 25/25-286/25SX Q&As               PS/2 Model 55/65 Q&As
 PS/2 Model 30/30-286 Q&As                    PS/2 Model 56/57/M57 Q&As
 PS/2 Model 35/40 Q&As                        PS/2 Model CL57 Q&As
 PS/2 Model L40 Q&As                          PS/2 Model P70/P75 Q&As
 PS/2 Model N45 Q&As                          PS/2 Model 76/77 Q&As
 PS/2 Model N51 Q&As                          PS/2 Model 90 Q&As
 PS/2 Model 53 Q&As                           PS/2 E Q&As

 Non-Micro Channel (ISA) PS/2 Service Q&As    Micro Channel PS/2 Service Q&As
 PS/2 General Video Q&As                      PS/2 General Disk Drive Q&As
 Miscellaneous System Q&As

 To return to the PS/2 Information header, double-click here.


ΓòÉΓòÉΓòÉ 7.1. PS/2 Model 25/25-286/25SX Q&As ΓòÉΓòÉΓòÉ

Q. What is the difference between the 25SX models and the Model 25 (8086) and
25-286?
A. Aside from the obvious (16MHz 386SX processor and up to 16MB of RAM), the
25SX models come with 1.44MB diskette drives, no hard disk, and either an
Ethernet adapter (K01) or Token-Ring adapter (L02), or no network adapter at
all (K00).  They are intended for use in the K-12 school market, and can only
be obtained through K-12 marketing channels, not through dealers or other
traditional PC sales channels.

Q. Are these systems upgradeable to other processor options?
A. Not by IBM.  There are OEM processor upgrades that may work in these
systems.  Contact the various upgrade vendors for compatibility information.

Q. Are there any larger hard drives available for my system than what came
standard with it?
A. Not from IBM, but there are OEM companies that offer hard drive upgrades for
virtually any PC.  Many such companies can be found by looking in the ads near
the back of most PC magazines, and especially Computer Shopper.  Contact the
vendors for details and pricing.

Q. What is the .25-inch jack in the back for?
A. It is a headphone jack, which cuts off the internal speaker when used.

Q. The specs show only one long and one short adapter slot.  Is there any way
to use longer cards in the short slot?
A. Yes.  3/4-length cards should fit with no problem, and even most full-length
cards, as long as they are not thicker than .25-inch at the "far" end.  If they
are you would need to add some non-conducting insulation to prevent the card
from touching the metal frame and potentially shorting out the card.

Q. Can a hard drive be added to the 25?
A. Yes.  Many hard drive vendors offer drives that can be used in the Model 25.
Be sure to tell the vendor whether you have an 8086-, 286-, or 386SX-based
model, as BIOS differences may limit the hard drive options for your particular
model.  A standard Model 30 hard drive will slide right in, but the ribbon
cable is just barely long enough to reach, so it may take some finessing to get
it in.

Q. Can a "hard card" adapter be added to the 25?
A. Yes.  Several hard drive vendors offered hard drive cards that can be used
in the Model 25.  Contact the various hard card vendors for details.

Q. Can an 8086-based Model 25 be upgraded to a 1.44MB diskette drive?
A. No.  The BIOS in this system does not support higher than a 720K diskette
drive.

Q. Where is the speaker?
A. The Model 25 uses a transducer (also referred to as a "beeper"), rather than
a conventional speaker.

Q. How do I open the cover to get inside a Model 25?
A. To open the Model 25, place the unit face down on the work surface.  Two
screws are removed from the back, and the lower chassis containing the rear
panel, motherboard, and disk drives rotates down and up like a draw bridge.
This gives full access to the motherboard, which is on top of the lower
chassis.  Expansion cards are plugged in horizontally into a vertical "riser
card" as in the Model 30.

Q. Where is the CMOS clock and battery?
A. The Model 25 (as does the Model 30) uses a special chip (with the word
"Dallas" printed on it), rather than a conventional CMOS clock and spearate
lithium button battery.  This chip can be pulled and replaced if/when it fails
to keep time correctly.  It is a fairly standard part made by Dallas
Semiconductor.

Q. Are these systems upgradeable to the IBM 386SLC/486SLC2/486SLC3 processor
options?
A. Only the PS/2 Models 56/57/M57 (386SX, 386SLC, and 486SLC2) are upgradeable
to those processors.  Other vendors may offer processor upgrades for the 286
and 386SX models.

Q. Are any of the 8086/286/386SX models EPA Energy Star-compliant?
A. No.  The Energy Star program did not yet exist when these systems were
designed.

Choose the section to which you wish to jump, below:

 Q&As
 PS/2 Model 25/25-286/25SX Q&As               PS/2 Model 55/65 Q&As
 PS/2 Model 30/30-286 Q&As                    PS/2 Model 56/57/M57 Q&As
 PS/2 Model 35/40 Q&As                        PS/2 Model CL57 Q&As
 PS/2 Model L40 Q&As                          PS/2 Model P70/P75 Q&As
 PS/2 Model N45 Q&As                          PS/2 Model 76/77 Q&As
 PS/2 Model N51 Q&As                          PS/2 Model 90 Q&As
 PS/2 Model 53 Q&As                           PS/2 E Q&As

 Non-Micro Channel (ISA) PS/2 Service Q&As    Micro Channel PS/2 Service Q&As
 PS/2 General Video Q&As                      PS/2 General Disk Drive Q&As
 Miscellaneous System Q&As

 To return to the PS/2 Systems Q&As header, double-click here.


ΓòÉΓòÉΓòÉ 7.2. PS/2 Model 30/30-286 Q&As ΓòÉΓòÉΓòÉ

Q. Are these systems upgradeable to other processor options?
A. Not by IBM.  There are OEM processor upgrades that may work in these
systems.  Contact the various upgrade vendors for compatibility information.

Q. Are there any larger hard drives available for my system than what came
standard with it?
A. Not from IBM, but there are OEM companies that offer hard drive upgrades for
virtually any PC.  Many such companies can be found by looking in the ads near
the back of most PC magazines, and especially Computer Shopper.  Contact the
vendors for details and pricing.

Q. Where is the speaker?
A. The Model 30 uses a transducer (also referred to as a "beeper"), rather than
a conventional speaker.

Q. Where is the CMOS clock and battery?
A. The Model 30 (as do the Models 25/35/40) uses a special chip (with the word
"Dallas" printed on it), rather than a conventional CMOS clock and spearate
lithium button battery.  This chip can be pulled and replaced if/when it fails
to keep time correctly.  It is a fairly standard part made by Dallas
Semiconductor.

Q. Can a hard disk drive be installed in a Model 30-002?
A. The Model 30-002 was sold with two diskette drives, and never intended to
have a hard disk drive.  But later models incorporated a revised BIOS that does
support hard disk drives.  If you are willing to replace the second diskette
drive with a 20MB or 30MB IBM hard disk drive (the ones supported by the
30-001), or an OEM drive, and if the system's serial number falls between
55A0001-55Z9999, or 7000000-7499999, the drive can be installed and will work.

Q. Can an 8086-based Model 30 be upgraded to a 1.44MB diskette drive?
A. No.  The BIOS in this system does not support higher than a 720K diskette
drive.

Q. When does the configuration program need to be run on the Model 30-286?
A. Automatic Configuration needs to be run any time any of the following are
added or removed:  memory, diskette drive, hard disk, or math coprocessor.
Change Configuration would have to be run if the address of the parallel port
is changed, or the serial and/or parallel port needs to be disabled.

Q. Why don't I see the Token-Ring adapter show up in the configuration program
on the Model 30-286?
A. The configuration program on the 30-286 does not need to be run when
adapters are installed (unless it is an extended memory adapter - see above
explanation.) Therefore, no adapters will be visible when the View
Configuration option is executed.  The appropriate diagnostic routines need to
be run if a suspected problem is encountered with an adapter.

Q. How can I attach the 1.2MB external 5.25" diskette drive (4869002) to a PS/2
Model 30 286?
A. The 1.2MB diskette drive requires a 1.2MB adapter, and the only one IBM came
out with was a Micro Channel adapter.  Therefore the 1.2MB drive can only be
used on PS/2 Model 50 or higher, or other Micro Channel PC.

Q. Are any of the 30 or 30-286 models EPA Energy Star-compliant?
A. No.  The Energy Star program did not yet exist when these systems were
designed.

Choose the section to which you wish to jump, below:

 Q&As
 PS/2 Model 25/25-286/25SX Q&As               PS/2 Model 55/65 Q&As
 PS/2 Model 30/30-286 Q&As                    PS/2 Model 56/57/M57 Q&As
 PS/2 Model 35/40 Q&As                        PS/2 Model CL57 Q&As
 PS/2 Model L40 Q&As                          PS/2 Model P70/P75 Q&As
 PS/2 Model N45 Q&As                          PS/2 Model 76/77 Q&As
 PS/2 Model N51 Q&As                          PS/2 Model 90 Q&As
 PS/2 Model 53 Q&As                           PS/2 E Q&As

 Non-Micro Channel (ISA) PS/2 Service Q&As    Micro Channel PS/2 Service Q&As
 PS/2 General Video Q&As                      PS/2 General Disk Drive Q&As
 Miscellaneous System Q&As

 To return to the PS/2 Systems Q&As header, double-click here.


ΓòÉΓòÉΓòÉ 7.3. PS/2 Model 35/40 Q&As ΓòÉΓòÉΓòÉ

Q. Are these systems upgradeable to other processor options?
A. Not by IBM.  The processor is soldered to the motherboard.  There are OEM
processor upgrades that "clip onto" the 386SX, and may work in these systems.
Contact the various upgrade vendors for compatibility information.

Q. Are there any larger hard drives available for my system than what came
standard with it?
A. Not from IBM, but there are OEM companies that offer hard drive upgrades for
virtually any PC.  Many such companies can be found by looking in the ads near
the back of most PC magazines, and especially Computer Shopper.  Contact the
vendors for details and pricing.

Q. Where is the CMOS clock and battery?
A. The Models 35/40 (as do the Models 25/30) use a special chip (with the word
"Dallas" printed on it), rather than a conventional CMOS clock and spearate
lithium button battery.  This chip can be pulled and replaced if/when it fails
to keep time correctly.  It is a fairly standard part made by Dallas
Semiconductor.

Q. How can I "drain the CMOS" on a Model 35/40 system, when there is no battery
to pull temporarily?
A. Look for a file called XCMOS.ZIP on the IBM PC Company BBS and other BBSes.
This is a utility that will flush the CMOS settings just as if the power had
been disconnected for several hours.

Q. What parameters do I need to use to format a 1.44MB diskette to 1.44MB in a
2.88MB drive?
A. Because the 2.88MB drive is media-sensing, no special parameters are needed
with the FORMAT command.  Simply typing FORMAT A: (or whatever drive letter is
appropriate for that drive) will format a 720K or 1.44MB diskette to the
appropriate capacity, barring a hardware problem.

Q. I tried to format a 1.44MB diskette to 1.44MB capacity in a 2.88MB drive,
using FORMAT A:, but I get "sector not found" errors.  The same diskette works
in a 1.44MB drive.  What's the problem?
A. If a 1.44MB diskette was previously formatted to 720K, or vice-versa, it may
fail when attempting to format it to the "correct" capacity in the future.  Try
formatting it to 1.44MB on a 1.44MB drive.  Then, if successful, try formatting
it to 1.44MB again on the 2.88MB drive.  It may work this time.  If not, do not
use it on a 2.88MB drive.

Q. What happens if I use selectable boot and make my system not see my 1.44, A:
drive?
A. There is a "safety" device that always looks at the A: drive for a Reference
Diskette.  If there is a Reference Diskette in the drive it will override
"selectable boot".

Q. What's the minimum OS/2 version required for the Models 35/40?
A. OS/2 V1.30.1 or later.

Q. Are the Models 35 and 40 EPA Energy Star-compliant?
A. No.  The Energy Star program did not yet exist when these system were
designed.

Q. I have a Model 35 or 40 with an IBM 386SLC processor, not a 386SX.  How come
I never read anything about the 35slc and 40slc models?
A. These models were custom-built for a large IBM customer, and then offered on
a limited bases to other large customers via a Special Bid process.  They were
never sold on the open market, and thus there is little information available
about them.

Q. I bought a used Model 35slc or 40slc.  Where can I get a reference diskette
for it?  I'm told that the one for the 35sx/40sx systems won't work with it.
A. Correct.  You need to call the IBM HelpCenter (800-772-2227) to request the
special Reference Diskette needed by those systems.

Choose the section to which you wish to jump, below:

 Q&As
 PS/2 Model 25/25-286/25SX Q&As               PS/2 Model 55/65 Q&As
 PS/2 Model 30/30-286 Q&As                    PS/2 Model 56/57/M57 Q&As
 PS/2 Model 35/40 Q&As                        PS/2 Model CL57 Q&As
 PS/2 Model L40 Q&As                          PS/2 Model P70/P75 Q&As
 PS/2 Model N45 Q&As                          PS/2 Model 76/77 Q&As
 PS/2 Model N51 Q&As                          PS/2 Model 90 Q&As
 PS/2 Model 53 Q&As                           PS/2 E Q&As

 Non-Micro Channel (ISA) PS/2 Service Q&As    Micro Channel PS/2 Service Q&As
 PS/2 General Video Q&As                      PS/2 General Disk Drive Q&As
 Miscellaneous System Q&As

 To return to the PS/2 Systems Q&As header, double-click here.


ΓòÉΓòÉΓòÉ 7.4. PS/2 Model L40 Q&As ΓòÉΓòÉΓòÉ

Upgrades
Q. Are these systems upgradeable to other processor options?
A. Not by IBM.  The processor is soldered to the motherboard.  There are OEM
processor upgrades that "clip onto" the 386SX, and may work in these systems.
Contact the various upgrade vendors for compatibility information.

Q. Are there any larger hard drives available for my L40?
A. Not from IBM, but there are OEM companies that offer 2.5" drives for many
different laptop/notebook PCs.  One such company is Laptop Solutions at
800-683-6839.  Contact them for details and pricing.  Other such vendors exist
as well.  Look at the ads near the back of most PC magazines, and especially
Computer Shopper.

Q. If I don't mind a reduced battery life, is it possible to use normal
"high-power" SIMMs in the L40 SX, instead of the expensive low-power CMOS
SIMMs?
A. Because of the possibility of damage to the SIMMS, the L40 motherboard, or
both, the L40 SIMM sockets are "keyed" differently than normal SIMM sockets.
Thus, SIMMs not designed for the L40 are physically incapable of being inserted
in the L40.

Q. Is there any way to attach a LAN or terminal emulation adapter to the L40SX?
A. The PS/2 Communication Cartridge I is an A/C-powered external expansion
cabinet that can take one half-length adapter.  It is intended for use with
network or terminal emulation adapters (such as 3270 and 5250). At 7.1 x 3.4 x
5.7 inches, and 2.6 lbs., it is small and light enough to be taken on the road
with the laptop.

Q. The announcement letter says that only LAN adapters, 3270 and 5250 emulation
adapters are supported in the Communications Cartridge I.  Can other adapters
be used as well?
A. Generally speaking, yes, if the adapter is 8" long or less.  There will be
some adapters that won't work, however; memory and video adapters, for example.
Also, the IBM SDLC adapter is known not to work. (It can only be configured as
COM1 or COM2, which are reserved by the L40 for the built-in serial port and
the optional serial port or fax/modem.)

Troubleshooting
Q. I can't seem to print anything.
A. Make sure your parallel port is turned on.  If you have the power management
software (PS2.EXE) installed on your hard drive, use it to check the status of
your ports.  If not, insert the Reference Diskette and run the program from the
A: drive.

Q. I can't get my communication software to recognize my serial port (or
internal fax/modem).
A. Make sure your serial port is turned on.  If you have the power management
software (PS2.EXE) installed on your hard drive, use it to check the status of
your ports.  If not, insert the Reference Diskette and run the program from the
A: drive.

Q. I can't get my serial mouse to work.
A. Make sure your serial port is turned on.  If you have the power management
software (PS2.EXE) installed on your hard drive, use it to check the status of
your ports.  If not, insert the Reference Diskette and run the program from the
A: drive.

Battery
Q. Does the L40SX Quick Charger perform a deep discharge on a battery before
recharging it?
A. No.  There is no deep discharge function built into the Quick charger.

Q. Despite having the A/C adapter plugged into the L40, the battery icons
indicate that the battery is still being drained.  I checked that the A/C
adapter is plugged into both the wall and the L40.  Do I have a bad battery?
A. It is possible, but before replacing it, there is a third connection to
double-check: the plug from the L40 to the A/C adapter.  It may have worked its
way loose.

Fax/Modem
Q. What is the syntax of the FAX command to use with the L40 Fax/Modem?
A. The FAX command must be followed by a file name and phone number to dial.
There is no "front end" to the program; it is strictly command line driven.
The file transmitted must be straight ASCII or a PCX graphics file.  You may
use a plus (+) sign between files to send them contiguously, without page
breaks between (for example, a business letterhead followed by the letter) or
just one name after another to send them as separate pages.  The phone number
uses the standard Hayes (AT) modem command set.

Q. What fax software can I use with the PS/2 Model L40 Fax/Modem option?
A. No special software is needed.  The Fax/Modem option includes a program that
provides basic Send/Receive, View, Print, and Set Options features.  The
software will accept ASCII, PCX, TIFF, or fax file formats for transmission.

Q. After receiving a Fax on a PS/2 Model L40, is there any way to manipulate or
edit the Fax image?
A. Yes.  Using the software included, first view the image with the command:
FAX VIEW filename.FAX, and clip out the portion of the Fax you wish to keep.
Then save the resulting image.  The file will be saved in a PCX format, which
is compatible with many popular image and graphics programs, and may be further
edited by those programs.

Q. If I have the Fax/Modem installed in a PS/2 Model L40, with the speed turned
down to 5 or 10MHz, will this affect the performance or accuracy of the Fax
input/output?
A. The Fax/Modem is not supported at 5MHz; and for best results in a
multitasking environment, such as in the OS/2 DOS box, or under Windows, the
20MHz speed should be used.

Miscellaneous
Q. I can't get an external monitor to work off the PS/2 Model L40 VGA port; the
monitor is blank. What's wrong?
A. To use the external VGA port, you must first use the setup program to change
the display type from LCD to CRT. Once this is done, the video signal will be
rerouted to the external monitor.

Q. When I attach an external monitor or projection device to the PS/2 Model L40
VGA port, the LCD goes blank.  Is there any way to have both displays working
simultaneously (for doing demonstrations to large audiences)?
A. Only one display can be used at a time; either the built-in LCD, or an
external monitor or projection device.  However, some devices that convert VGA
output to "standard" analog RGB output for video projectors have video cables
with "piggyback" VGA connectors, so that a monitor can connect to the back of
the plug that goes into the VGA port.  In this manner, the demonstrator has an
external monitor to look at, while the audience sees the projection screen.
(One such conversion box is called the Extron 109, manufactured by Covid
Electronics.  Other such products may also exist; this is not meant as an
endorsement of this particular vendor or product; merely an example.)

Q. What's the minimum OS/2 version required for the L40?
A. OS/2 V1.30.1 is the minimum requirement.

Q. Is the L40 EPA Energy Star-compliant?
A. Literally speaking, no.  The Energy Star program did not yet exist when this
system was designed.  However, the L40's power use falls within the Energy
Star's guidelines, so it would qualify if still offered for sale.

Choose the section to which you wish to jump, below:

 Q&As
 PS/2 Model 25/25-286/25SX Q&As               PS/2 Model 55/65 Q&As
 PS/2 Model 30/30-286 Q&As                    PS/2 Model 56/57/M57 Q&As
 PS/2 Model 35/40 Q&As                        PS/2 Model CL57 Q&As
 PS/2 Model L40 Q&As                          PS/2 Model P70/P75 Q&As
 PS/2 Model N45 Q&As                          PS/2 Model 76/77 Q&As
 PS/2 Model N51 Q&As                          PS/2 Model 90 Q&As
 PS/2 Model 53 Q&As                           PS/2 E Q&As

 Non-Micro Channel (ISA) PS/2 Service Q&As    Micro Channel PS/2 Service Q&As
 PS/2 General Video Q&As                      PS/2 General Disk Drive Q&As
 Miscellaneous System Q&As

 To return to the PS/2 Systems Q&As header, double-click here.


ΓòÉΓòÉΓòÉ 7.5. PS/2 Model N45 Q&As ΓòÉΓòÉΓòÉ

Q. Are these systems upgradeable to other processor options?
A. Not by IBM.  The processor is soldered to the motherboard.  There are OEM
processor upgrades that "clip onto" the 386SX or 386SL, and may work in these
systems.  Contact the various upgrade vendors for compatibility information.

Q. Are there any larger hard drives available for my system?
A. Not from IBM, but there are OEM companies that offer 2.5" drives for many
different laptop/notebook PCs.  One such company is Laptop Solutions at
800-683-6839.  Contact them for details and pricing.  Other such vendors exist
as well.  Look at the ads near the back of most PC magazines, and especially
Computer Shopper.

Q. Is there a docking station or "Communication Cartridge" for the N45?
A. No, however there are communications products from OEM vendors that will
attach to the N45's parallel and serial ports.

Q. Is the N45 EPA Energy Star-compliant?
A. Literally speaking, no.  The Energy Star program did not yet exist when this
system was designed.  However, the N45's power use falls within the Energy
Star's guidelines, so it would qualify if still offered for sale.

Choose the section to which you wish to jump, below:

 Q&As
 PS/2 Model 25/25-286/25SX Q&As               PS/2 Model 55/65 Q&As
 PS/2 Model 30/30-286 Q&As                    PS/2 Model 56/57/M57 Q&As
 PS/2 Model 35/40 Q&As                        PS/2 Model CL57 Q&As
 PS/2 Model L40 Q&As                          PS/2 Model P70/P75 Q&As
 PS/2 Model N45 Q&As                          PS/2 Model 76/77 Q&As
 PS/2 Model N51 Q&As                          PS/2 Model 90 Q&As
 PS/2 Model 53 Q&As                           PS/2 E Q&As

 Non-Micro Channel (ISA) PS/2 Service Q&As    Micro Channel PS/2 Service Q&As
 PS/2 General Video Q&As                      PS/2 General Disk Drive Q&As
 Miscellaneous System Q&As

 To return to the PS/2 Systems Q&As header, double-click here.


ΓòÉΓòÉΓòÉ 7.6. PS/2 Model N51 Q&As ΓòÉΓòÉΓòÉ

Q. Are these systems upgradeable to other processor options?
A. Not by IBM.  The processor is soldered to the motherboard.  There are OEM
processor upgrades that "clip onto" the 386SX, and may work in these systems.
Contact the various upgrade vendors for compatibility information.

Q. Are there any larger hard drives available for my system?
A. Not from IBM, but there are OEM companies that offer 2.5" drives for many
different laptop/notebook PCs.  One such company is Laptop Solutions at
800-683-6839.  Contact them for details and pricing.  Other such vendors exist
as well.  Look at the ads near the back of most PC magazines, and especially
Computer Shopper.

Q. The announcement letter says that only LAN adapters, 3270 and 5250 emulation
adapters are supported in the Communications Cartridge.  Can other adapters be
used as well?
A. Generally speaking, yes, if the adapter is 8" long or less.  There will be
some adapters that won't work, however; memory and video adapters, for example.

Q. I see that IBM has announced Token-Ring, Ethernet, and 3270 emulation
products in PCMCIA format.  Does this system have a PCMCIA slot?
A. No.

Q. I can't seem to print anything.
A. Make sure your parallel port is turned on.  If you have the power management
software (PS2.EXE) installed on your hard drive, use it to check the status of
your ports.  If not, insert the Reference Diskette and run the program from the
A: drive.

Q. I can't get my communication software to recognize my serial port (or
internal fax/modem).
A. Make sure your serial port is turned on.  If you have the power management
software (PS2.EXE) installed on your hard drive, use it to check the status of
your ports.  If not, insert the Reference Diskette and run the program from the
A: drive.

Q. I can't get my serial mouse to work.
A. Make sure your serial port is turned on.  If you have the power management
software (PS2.EXE) installed on your hard drive, use it to check the status of
your ports.  If not, insert the Reference Diskette and run the program from the
A: drive.

Q. How does a Model N51SLC notebook (using the IBM 386SLC processor) compare to
other 16MHz 386SX notebook systems?
A. The 16MHz 386SLC processor used in N51SLC is the only one to use an internal
8K cache.  All other notebooks use the standard Intel 16MHz 386SX processor.
By comparison, the internal cache makes the Models N51SLC as much as 80% faster
than competitive 16MHz 386SX systems (or the N51SX), and even equivalent to
25MHz 386SL notebooks!

Q. Are these systems upgradeable to the IBM 386SLC/486SLC2/486SLC3 processor
options?
A. Only the PS/2 Models 56/57/M57 (386SX, 386SLC, and 486SLC2) are upgradeable
to those processors.

Q. What's the minimum OS/2 version required for the N51 notebook?
A. OS/2 V1.30.1 is the minimum requirement for the N51SX; the N51SLC requires
V1.30.2 or later.

Q. Is the N51 EPA Energy Star-compliant?
A. Literally speaking, no.  The Energy Star program did not yet exist when this
system was designed.  However, the N51's power use falls within the Energy
Star's guidelines, so it would qualify if still offered for sale.

Choose the section to which you wish to jump, below:

 Q&As
 PS/2 Model 25/25-286/25SX Q&As               PS/2 Model 55/65 Q&As
 PS/2 Model 30/30-286 Q&As                    PS/2 Model 56/57/M57 Q&As
 PS/2 Model 35/40 Q&As                        PS/2 Model CL57 Q&As
 PS/2 Model L40 Q&As                          PS/2 Model P70/P75 Q&As
 PS/2 Model N45 Q&As                          PS/2 Model 76/77 Q&As
 PS/2 Model N51 Q&As                          PS/2 Model 90 Q&As
 PS/2 Model 53 Q&As                           PS/2 E Q&As

 Non-Micro Channel (ISA) PS/2 Service Q&As    Micro Channel PS/2 Service Q&As
 PS/2 General Video Q&As                      PS/2 General Disk Drive Q&As
 Miscellaneous System Q&As

 To return to the PS/2 Systems Q&As header, double-click here.


ΓòÉΓòÉΓòÉ 7.7. PS/2 Model 53 Q&As ΓòÉΓòÉΓòÉ

Q. The PS/2 Model 53 sounds a lot like the Model 56, but at a lower cost.  What
are the differences between the two models?
A. They are very similar, but there are a few differences that result in the
lower price for the 9553, including IDE drives versus SCSI, and SVGA versus
XGA-2.  Plus, the 56-xEx models offer the 75/25MHz 486SLC3 processor, for 40%
better performance than the 50/25MHz 486SLC2 used in the 53's (and 56-xBx
models).  Finally, while the 56's come with a mouse and choice of operating
system, these are optional on the 53.

Q. Are there any other reasons to buy the 53, besides the cost?
A. Yes.  The SVGA controller in the 53 is faster than the XGA-2 included with
the 56.  You could always add an SVGA adapter to the 56, but, again, that adds
to the cost of the system, while using up one of the adapter slots.

Q. So why would I want to buy the 56?
A. Several reasons:  1) Where the 56's IDE controller is limited to only two
hard disk drives, the SCSI controller in the 56 can support up to 7 devices
(most of them would have to be externally-attached).  As the SCSI controller
supports SCSI tape drive, optical and CD-ROM drives, SCSI printers and
scanners, not just hard drives, you would save money and an adapter slot by not
having to later purchase one or more adapters to accommodate these devices.  2)
Also, if your company has standardized on XGA-2 graphics, the 53's SVGA may
complicate the issue.  An XGA-2 adapter can be added to the 53, but....
Finally, 3) You can buy 486SLC3-based 9556, or a 486SLC2 model and later
upgrade to a 486SLC3.

Q. IBM offers a 486SLC3 upgrade for the 56/57-x4x/x5x/xBx models.  How about
the 53?
A. There is no 486SLC3 upgrade offered for the Model 53.

Q. Is the Model 53 system EPA Energy Star-compliant?
A. No, however with the proper power-management drivers (available on the IBM
PC Company BBS, CompuServe, and other electronic sources), Energy
Star-compliant monitors (such as the IBM P and V series) that are connected to
the 955x models will be able to operate in VESA power-saving modes.

Choose the section to which you wish to jump, below:

 Q&As
 PS/2 Model 25/25-286/25SX Q&As               PS/2 Model 55/65 Q&As
 PS/2 Model 30/30-286 Q&As                    PS/2 Model 56/57/M57 Q&As
 PS/2 Model 35/40 Q&As                        PS/2 Model CL57 Q&As
 PS/2 Model L40 Q&As                          PS/2 Model P70/P75 Q&As
 PS/2 Model N45 Q&As                          PS/2 Model 76/77 Q&As
 PS/2 Model N51 Q&As                          PS/2 Model 90 Q&As
 PS/2 Model 53 Q&As                           PS/2 E Q&As

 Non-Micro Channel (ISA) PS/2 Service Q&As    Micro Channel PS/2 Service Q&As
 PS/2 General Video Q&As                      PS/2 General Disk Drive Q&As
 Miscellaneous System Q&As

 To return to the PS/2 Systems Q&As header, double-click here.


ΓòÉΓòÉΓòÉ 7.8. PS/2 Model 55/65 Q&As ΓòÉΓòÉΓòÉ

Q. Are these systems upgradeable to other processor options?
A. Not by IBM.  The processor is soldered to the motherboard.  There are OEM
processor upgrades that "clip onto" the 386SX, and may work in these systems.
Contact the various upgrade vendors for compatibility information.

Q. Are there any larger hard drives available for my system than what came
standard with it?
A. Not from IBM, but there are OEM companies that offer hard drive upgrades for
virtually any PC.  Many such companies can be found by looking in the ads near
the back of most PC magazines, and especially Computer Shopper.  Contact the
vendors for details and pricing.

Q. How can I "drain the CMOS" on this system, when there is no battery to pull
temporarily?
A. Look for a file called XCMOS.ZIP on the IBM PC Company BBS and other BBSes.
This is a utility that will flush the CMOS settings just as if the power had
been disconnected for several hours.

Q. Does the PS/2 Model 55 LS (LAN Station) come with a Reference Diskette?
A. No, because the 55 LS is a diskless workstation, so there would be no place
to insert the diskette.  A disk image must be created on the server and
downloaded to the 55 LS; therefore only one Reference Diskette is needed per
network (not one per 55 LS).  A separate package may be ordered for the 55 LS
to obtain the necessary Reference Diskette and Option Diskette for the specific
model of 55 LS.  For the 55-LT0, order P/N 15F2230 for the Token-Ring
Information Guide, and PS/2 Model 55/65 Reference Diskette and 16/4 Token Ring
Network Adapter/A Option Diskette.  For the 55-LE0, order 15F2232 for the
equivalent Ethernet materials.  Alternately, users may download these diskettes
from the IBM Pc Company BBS.  (Use the REF DISK command to get access to the
Reference and Option diskette download area.

Choose the section to which you wish to jump, below:

 Q&As
 PS/2 Model 25/25-286/25SX Q&As               PS/2 Model 55/65 Q&As
 PS/2 Model 30/30-286 Q&As                    PS/2 Model 56/57/M57 Q&As
 PS/2 Model 35/40 Q&As                        PS/2 Model CL57 Q&As
 PS/2 Model L40 Q&As                          PS/2 Model P70/P75 Q&As
 PS/2 Model N45 Q&As                          PS/2 Model 76/77 Q&As
 PS/2 Model N51 Q&As                          PS/2 Model 90 Q&As
 PS/2 Model 53 Q&As                           PS/2 E Q&As

 Non-Micro Channel (ISA) PS/2 Service Q&As    Micro Channel PS/2 Service Q&As
 PS/2 General Video Q&As                      PS/2 General Disk Drive Q&As
 Miscellaneous System Q&As

 To return to the PS/2 Systems Q&As header, double-click here.


ΓòÉΓòÉΓòÉ 7.9. PS/2 Model 56/57/M57 Q&As ΓòÉΓòÉΓòÉ

Processor
Q. What exactly is the "PS/2 Cached Processor Option" for the Models 8556/57
SX?
A. It consists of a card that plugs into the 387SX math coprocessor socket of a
Model 56 or 57 motherboard.  This card contains an IBM-developed derivative of
the Intel 386SX chip, called the 386SLC.

Q. Does the original 386SX chip need to be returned to IBM when the PS/2 Cached
Processor Option is installed?
A. No.  Both processors (old and new) remain in the system (the 386SX is
soldered to the Model 57 motherboard).

Q. In what other systems can I use the 386SLC PS/2 Cached Processor Option,
besides the Models 56/57 SX?
A. None.  Not only do the 56/57 SX systems contain BIOS enhancements to support
the Option, but there are specific hardware changes required to support it.
Currently no other IBM or non-IBM systems have these necessary enhancements.
The PS/2 Ultimedia Model M57 SLC, designed for the multimedia market, is
essentially a standard Model 57SX, with the 386SLC processor built in, and
various multimedia-related options installed (see below for more details).

Q. What's the practical difference between buying a standard Model 56SX/57SX
and adding the 386SLC Cached Processor Option, versus buying a 56SLC/57SLC
outright?
A. Ultimately, none.  Starting with the SX models allows you to keep the
initial cost down.  Then when more performance is needed, or funds are
available, the systems can be upgraded. The end result is the same, because
performance is identical, and since the Cached Processor Option includes a math
coprocessor socket, expansion is identical.  When faster SLC chips are
available, either configuration may be upgraded.  The SLC model by adding the
new Cached Processor Option, and the SX model by replacing the old Cached
Processor Option with the new one.

Q. Does this also mean that there is no practical difference between an 8556/57
SX or SLC with the 486SLC2 Processor Upgrade added and a 9556/57 with the
486SLC2 already installed?
A. No.  The 9556/57 (xBx) models have a number of enhancements not found in the
8556 models: 1) The clock operates at 25MHz, resulting in a 486SLC2 operating
at 50/25MHz, while the 855x models (x4x/x5x), with a 20MHz clock will only run
the 486SLC2 upgrade at 40/20MHz.  2) The 955x models come with two serial
ports, rather than the previous single port.  3) Whereas the older 8556/57
systems include an VGA controller, the 955x models use XGA-2.  4) The 955x
models ship with larger hard disk drives than their 855x counterparts, and  5)
The standard warranty has been increased from 1 year on-site to 3 years.

Q. The latest 9556/57 models (xEx) shipped with a 486SLC3 processor, rather
than the 486SLC2 used in the earlier (xBx) models.  Is this the only
difference?
A. No, but it is the major change, producing a performance increase of up to
40% over the xBx models.  In addition, the standard hard disk drive sizes were
increased (170/245/340/540MB versus 104/208/540), and the choice of keyboards
included two models that contain the revolutionary IBM TrackPoint II "pointing
stick" built in (instead of a standard keyboard and mouse).

Q. How does a Model 56SX or 57SX, with the (386SLC) PS/2 Cached Processor
Option installed (or a Model 56SLC or 57SLC) compare to non-IBM "cached 20MHz
386SX" systems, performance-wise?
A. The 386SLC processor used in the PS/2 Cached Processor Option is the only
one to use an internal (8K) processor cache.  All other systems use the
standard Intel 386SX processor, and add an external cache.  By comparison, the
internal cache makes the 20MHz Models 56/57 with the PS/2 Cached Processor
Option installed as much as 67% faster than competitive cached 20MHz 386SX
systems, and even as much as 7% faster than 25MHz 386DX systems!  Compared to a
standard Model 56/57SX the difference is up to 88% faster.

Q. Are there any limitations or incompatibilities to watch out for with the
PS/2 Cached Processor Option.
A. The only known conflict is with the IBM ARTIC Portmaster Adapter/A and
related options.  This adapter and the Option are mutually exclusive.

Q. Why would I want a system with an SLC when it only has a 16-bit data path,
versus a full 32-bit processor?
A. SLC systems (now withdrawn from marketing) are desktop models most
appropriate for mainstream applications, such as word processing, spreadsheets
and general business.  Only in heavy data transfer environments, such as a LAN
Server, would the 16-bit data path not provide sufficient I/O throughput.

Q. What exactly is the "PS/2 486SLC2 Processor Upgrade"?
A. It consists of a card that plugs into the 387SX math coprocessor socket of a
Model 56 or 57 motherboard.  This card contains an IBM-developed clock-doubling
derivative of the Intel 386SX chip, called the 486SLC2.

Q. What exactly is the "PS/2 486SLC3 Processor Upgrade"?
A. It consists of a card that plugs into the 387SX math coprocessor socket of a
Model 56 or 57 motherboard.  This card contains an IBM-developed clock-tripling
derivative of the Intel 386SX chip, called the 486SLC3.

Q. How is the 486SLC2/486SLC3 upgrade installed?
A. The upgrade card fits in the math coprocessor socket on the motherboard,
disabling the chip soldered to the board.  The option card has a coprocessor
socket that will hold a 387SX math coprocessor, if used.

Q. What systems are upgradeable to the 486SLC2/486SLC3?
A. All models of the 8556/57/M57 (386SX or 386SLC) are upgradeable to either
processor (the 486SLC2 upgrade kit is now withdrawn from marketing); the
486SLC2-standard 9556/57/M57 models are upgradeable to the 486SLC3.  In
addition, the 486SLC (single-speed) based ThinkPad 700/700C models may be
upgraded to the 486SLC2 processor via a special ThinkPad upgrade kit (also
withdrawn, but perhaps available on the secondary market as a used part or
liquidation item).

Q. I have an 8556/57 SLC with the 486SLC2 processor upgrade kit installed, and
everything was running smoothly until I installed the IBM SCSI Adapter with
Cache.  I disconnected all SCSI devices from the built-in SCSI controller and
connected them all to the new SCSI adapter.  All of a sudden the system runs
very slowly.  I ran a program that checks the processor type and speed, as well
as the system BIOS. and it reported that the system was running at 18.5MHz (or
something similar--it may differ), and it showed a BIOS type of F8 26 (which
corresponds to the 386SLC processor) instead of F8 25 (which is correct for the
486SLC2).  I have "drained CMOS" and reloaded the system partition from the
latest Reference and Diagnostic diskettes, but nothing helps.  What's wrong?
A. This is still being investigated, but as a temporary work-around, if you
reconnect the boot drive (SCSI ID 6) to the motherboard SCSI controller and
leave the rest of the SCSI devices attached to the SCSI adapter, the problem
should go away.

Drive/Adapter/IML/Reference Diskette
Q. Besides the preceding, are the 486SLC3-based M57-xEx multimedia models any
different from earlier models?
A. Yes.  Besides the processor and keyboard changes, the single-speed CD-ROM
drive (single-session CD, CD-XA capable) has been replaced by a dual-speed
model (multi-session Photo CD, CD-XA capable), and the IBM Audiovation adapter
replaces the M-ACPA adapter.  This offers major enhancements in the area of
SoundBlaster and joystick compatibility, speech recognition and synthesis, and
a software-upgradeable Digital Signal Processor (DSP).  One difference to note
between the M57 and the standard 57, is that the M57 only offers a choice of
two of the four operating environments:  DOS 6.1/Windows 3.1, or OS/2 2.1.

Q. The (8557 and 9557-xBx) Model M57s come with an IBM Multimedia Audio Capture
and Playback Adapter/A (M-ACPA) installed.  As there is much software written
for the SoundBlaster and other sound cards, but little except educational
software for M-ACPA, is there any way to have the M-ACPA card emulate one of
the other sound cards?
A. Yes and no.  There is an Internal Use Only beta set of DOS, Windows, and
OS/2 2.x device drivers for the M-ACPA card that allows it to translate the
SoundBlaster music and sound effects instruction set into the equivalent M-ACPA
instructions.  The effect is not identical, but similar, and should prove
satisfactory for many uses.  This tool is not warranted, nor supported.  It is
available "as is," and can be downloaded by an IBM employee from the PCTOOLS
disk (AUDIOVDD PACKAGE), or from many BBSes ( including the IBM PC Company BBS)
as AUDIOVDD.ZIP.

Q. Why is the ARTIC Portmaster card supported in the 9556/9557 systems, but not
the 8556/8557?
A. There is a problem with the DMA controller in the older models that
prevented the reliable use of the Portmaster.  There is no fix avilable for the
8556/8557 systems.  The 95xx models do not have this problem.

Q. Why isn't the IBM SCSI-2 Fast/Wide Adapter supported in the 56/57 systems?
A. It is a true 32-bit adapter (unlike the older SCSI-1 adapters which would
work in either 16-bit or 32-bit slots), requiring a 32-bit slot.

Q. But I thought that the SCSI-2 Wide spec is only 16-bits wide?
A. It is, allowing 8- and 16-bit devices to be connected to the SCSI-2 bus, but
the adapter itself produces better performance by being implemented as a 32-bit
card (just as the previous SCSI-1 8-bit bus was implemented on 16/32-bit
cards).

Q. What parameters do I need to use to format a 1.44MB diskette to 1.44MB in a
2.88MB drive?
A. Because the 2.88MB drive is media-sensing, no special parameters are needed
with the FORMAT command.  Simply typing FORMAT A: (or whatever drive letter is
appropriate for that drive) will format a 720K or 1.44MB diskette to the
appropriate capacity, barring a hardware problem.

Q. I tried to format a 1.44MB diskette to 1.44MB capacity in a 2.88MB drive,
using FORMAT A:, but I get "sector not found" errors.  The same diskette works
in a 1.44MB drive.  What's the problem?
A. If a 1.44MB diskette was previously formatted to 720K, or vice-versa, it may
fail when attempting to format it to the "correct" capacity in the future.  Try
formatting it to 1.44MB on a 1.44MB drive.  Then, if successful, try formatting
it to 1.44MB again on the 2.88MB drive.  It may work this time.  If not, do not
use it on a 2.88MB drive.

Q. What does IML stand for (as in "IML partition")?
A. Initial Microcode Load, This is where your BIOS and your copy of the
Reference Diskette is stored in a 3MB protected partition on your hard disk.

Q. On what drive does the IML reside on a 56/57?
A. The IML has to reside on the SCSI drive set to ID 6.  (On 8556/8557 systems,
if you have more than one SCSI adapter in the system with multiple drives set
to ID 6, then it is the ID 6 drive on the adapter in the lowest-numbered
adapter slot (i.e., slot 1 is lower than slot 3).  On 9556/9557 systems the
controller is built into the system board, so even if you add another SCSI
adapter, the ID 6 drive attached to the motherboard controller (in "slot" 0)
will be the drive with the IML partition.)

Q. On the PS/2 Models 56 and 57, does the SCSI drive that contains the IML
partition (with the BIOS and configuration program) need to be set up
differently than the other drives?
A. Yes.  This drive must be configured for SCSI ID 6. The motherboard ROM will
always look for the drive configured as SCSI ID 6 to find the BIOS and
Reference Diskette information, regardless of which drive is currently
designated as the primary bootable drive.

Q. Are there any limitations to the size of SCSI drives that I can install in a
56/57?
A. Yes.  There is a 1GB limitation for the drive that will be holding the IML
partition.  Also, if using a non-IBM drive that is larger than 1GB as a
non-primary drive, the IML setup program may not display the correct size.
Contact the drive vendor for compatibility information.  Other than those
limitations, SCSI drives can be as large as the power supply will support.

Q. What do I need to do if I want to install a second IBM hard disk in a 56/57?
A. All our hard disk SCSI drives come pre-set at ID 6.  When installing a
second drive you need to first change the ID to a lower number; then install
the drive and run the Reference Diskette auto-config program.

Q. Is it possible to boot to an internal 5.25 drive in a 56/57?
A. Yes. You have the option to use "selectable boot" from the Reference
Diskette to select what drive you would like to boot from. Caution:  If you use
this your logical drive letters may change.

Q. What could cause the PS/2 Models 56 and 57 not to be able to boot from the
primary hard disk drive if they pass diagnostics?
A. If you know you have an operating system installed on the drive, and you can
do a DIR from a bootable DOS diskette, then make sure that the hard disk drive
on which you have installed the operating system is designated as a bootable
drive when you set up selectable boot.

Q. What happens if I use selectable boot and make my system not see my 1.44, A:
drive?  How will it see the Reference Diskette?
A. There is a "safety" device that always looks at the A: drive for a Reference
Diskette.  If there is a Reference Diskette in the drive it will override
"selectable boot".

Q. When I try to boot from a DOS diskette to install the operating system, the
system goes straight to BASIC.  Yet when I boot to the Reference Diskette, it
works fine.  What's the problem?  I've tried two copies of DOS, so it's not a
bad diskette or diskette drive.
A. Boot from the Reference Diskette, and look at the drive boot sequence.  Most
likely the boot sequence does not include the A: drive (which may have been
intentionally or accidentally excluded).  With the A: drive excluded, only the
Reference Diskette will boot from it. Adding the A: drive to the boot sequence
should correct the problem.

Software
Q. When I try to install OS/2 on my new Model 56 (or 57) 486SLC3 system I get
various SYSxxxx and Trap errors.  What's wrong?
A. A small number of 486SLC3-based 9556/9557 systems shipped with a timing
problem on the motherboard that prevents OS/2 from installing correctly.  Some
of the SYS messages that may be displayed include SYS0049, SYS0318, and
SYS3175.  Other SYS and Trap errors are possible.  Systems manufactured after
16Feb94 already contain the fix.  Users with the early motherboards that
experience these errors (only during installation) should contact IBM or an IBM
authorized servicer for a motherboard replacement.

Q. I accidentally deleted the Welcome folder on my OS/2 2.00.1 preloaded
system.  Is there any way to recover/recreate it?
A. Yes.  You have two options.  Either 1) download a utility ( WELCOME.CMD)
from the IBM PC Company BBS (from the OS/2 Utilities directory), or call the
IBM Automated Fax system (800-IBM-3395) for a document containing the 60 steps
you'll need to go through to do it manually.

Miscellaneous
Q. Are any of the 855x/955x models EPA Energy Star-compliant?
A. No, however with the proper power-management drivers (available on the IBM
PC Company BBS, CompuServe, and other electronic sources), Energy
Star-compliant monitors (such as the IBM P and V series) that are connected to
the 955x models will be able to operate in VESA power-saving modes.

Q. I know that the 56/57/76/77/85/90/95 systems use serial and parallel ports
capable of high-speed DMA transfers, but how do I know if my system is set up
to use DMA?
A. Simple.  Start the System Program (either from the System Partition on your
hard disk drive, or the Reference Diskette), and look at the Arbitration Level
for the serial and parallel ports. The parallel port should be set to Shared 7,
and the serial port should be set to Shared 4 for Transmit Arb Level, and
Shared 3 for Receive Arb Level.  If your system has two DMA serial ports, the
second serial port should be set to Shared 6 for Transmit Arb Level, and Shared
5 for Receive Arb Level.  These are the defaults.  If the ports are set this
way, they are using DMA transfers.

Choose the section to which you wish to jump, below:

 Q&As
 PS/2 Model 25/25-286/25SX Q&As               PS/2 Model 55/65 Q&As
 PS/2 Model 30/30-286 Q&As                    PS/2 Model 56/57/M57 Q&As
 PS/2 Model 35/40 Q&As                        PS/2 Model CL57 Q&As
 PS/2 Model L40 Q&As                          PS/2 Model P70/P75 Q&As
 PS/2 Model N45 Q&As                          PS/2 Model 76/77 Q&As
 PS/2 Model N51 Q&As                          PS/2 Model 90 Q&As
 PS/2 Model 53 Q&As                           PS/2 E Q&As

 Non-Micro Channel (ISA) PS/2 Service Q&As    Micro Channel PS/2 Service Q&As
 PS/2 General Video Q&As                      PS/2 General Disk Drive Q&As
 Miscellaneous System Q&As

 To return to the PS/2 Systems Q&As header, double-click here.


ΓòÉΓòÉΓòÉ 7.10. PS/2 Model CL57 Q&As ΓòÉΓòÉΓòÉ

Q. Are these systems upgradeable to other processor options?
A. Not by IBM.  The processor is soldered to the motherboard.  There are OEM
processor upgrades that "clip onto" the 386SX, and may work in these systems.
Contact the various upgrade vendors for compatibility information.

Q. The announcement letter says that only LAN adapters, 3270 and 5250 emulation
adapters are supported in the Communications Cartridge II.  Can other adapters
be used as well?
A. Generally speaking, yes, if the adapter is 8" long or less.  There will be
some adapters that won't work, however; memory and video adapters, for example.

Q. I can't seem to print anything.  My software seems to be set up correctly.
What's wrong?
A. Make sure your parallel port is turned on.  If you have the power management
software (PS2.EXE) installed on your hard drive, use it to check the status of
your ports.  If not, insert the Reference Diskette and run the program from the
A: drive.

Q. I can't get my communication software to recognize my serial port (or
internal fax/modem).
A. Make sure your serial port is turned on.  If you have the power management
software (PS2.EXE) installed on your hard drive, use it to check the status of
your ports.  If not, insert the Reference Diskette and run the program from the
A: drive.

Q. I can't get my serial mouse to work.
A. Make sure your serial port is turned on.  If you have the power management
software (PS2.EXE) installed on your hard drive, use it to check the status of
your ports.  If not, insert the Reference Diskette and run the program from the
A: drive.

Q. What's the minimum OS/2 version required for the CL57 color laptop?
A. OS/2 V2.0 is the minimum requirement for the CL57.

Q. Is the CL57 EPA Energy Star-compliant?
A. Literally speaking, no.  The Energy Star program did not yet exist when this
system was designed.  However, the CL57's power use falls within the Energy
Star's guidelines, so it would qualify if still offered for sale.

Choose the section to which you wish to jump, below:

 Q&As
 PS/2 Model 25/25-286/25SX Q&As               PS/2 Model 55/65 Q&As
 PS/2 Model 30/30-286 Q&As                    PS/2 Model 56/57/M57 Q&As
 PS/2 Model 35/40 Q&As                        PS/2 Model CL57 Q&As
 PS/2 Model L40 Q&As                          PS/2 Model P70/P75 Q&As
 PS/2 Model N45 Q&As                          PS/2 Model 76/77 Q&As
 PS/2 Model N51 Q&As                          PS/2 Model 90 Q&As
 PS/2 Model 53 Q&As                           PS/2 E Q&As

 Non-Micro Channel (ISA) PS/2 Service Q&As    Micro Channel PS/2 Service Q&As
 PS/2 General Video Q&As                      PS/2 General Disk Drive Q&As
 Miscellaneous System Q&As

 To return to the PS/2 Systems Q&As header, double-click here.


ΓòÉΓòÉΓòÉ 7.11. PS/2 Model P70/P75 Q&As ΓòÉΓòÉΓòÉ

Q. Are these systems upgradeable to other processor options?
A. Not by IBM.  There are OEM processor upgrades that may work in these
systems.  Contact the various upgrade vendors for compatibility information.

Q. Is there a docking station for the P70 or P75?
A. Not as such, however the P75 includes a SCSI port, which enables you to
attach up to 6 external SCSI devices, either directly or installed in multiple
IBM 3510s or a 3511, or OEM expansion boxes. (This does not provide adapter
slots, however, just SCSI drives and other devices).  While the P70 does not
include SCSI support, a SCSI adapter can be installed in one of the two Micro
Channel adapter slots, providing support for up to 7 external devices).  IBM's
SCSI adapters would require the one long slot.  The P70 also has a port that
allows you to attach diskette and tape drives made specifically for that port.
|

Q. Can I run both the built-in plasma display, and an external color display at
the same time on a PS/2 Model P70 or P75?
A. During POST on the P70, the BIOS checks to see if there is an external
monitor attached.  If so, the plasma display is disabled.  The P75, however
will allow both monitors to work concurrently.  Simply boot from the Reference
Diskette, go into Change Configuration, and use the F5/F6 keys to change the
display setup information to allow dual displays.

Q. Are the Models P70 and P75 EPA Energy Star-compliant?
A. No.  The Energy Star program did not yet exist when these systems were
designed.

Choose the section to which you wish to jump, below:

 Q&As
 PS/2 Model 25/25-286/25SX Q&As               PS/2 Model 55/65 Q&As
 PS/2 Model 30/30-286 Q&As                    PS/2 Model 56/57/M57 Q&As
 PS/2 Model 35/40 Q&As                        PS/2 Model CL57 Q&As
 PS/2 Model L40 Q&As                          PS/2 Model P70/P75 Q&As
 PS/2 Model N45 Q&As                          PS/2 Model 76/77 Q&As
 PS/2 Model N51 Q&As                          PS/2 Model 90 Q&As
 PS/2 Model 53 Q&As                           PS/2 E Q&As

 Non-Micro Channel (ISA) PS/2 Service Q&As    Micro Channel PS/2 Service Q&As
 PS/2 General Video Q&As                      PS/2 General Disk Drive Q&As
 Miscellaneous System Q&As

 To return to the PS/2 Systems Q&As header, double-click here.


ΓòÉΓòÉΓòÉ 7.12. PS/2 Model 76/77 Q&As ΓòÉΓòÉΓòÉ

Processor/Memory
Q. Are the 9576/77 systems processor-upgradeable?
A. Yes.  Depending on the model, these systems may be upgraded via Intel
OverDrive module to an Intel 486DX2 or Pentium processor.

Q. What are the differences between the 76 and 77 "s" and "i" models?
A. They are nearly identical: The 76i and 77i models come with an IDE drive
attached to an IDE controller on the motherboard.  The 76s and 77s models add a
Fast SCSI-2 adapter and a SCSI-2 drive (instead of the IDE drive).  An optional
IDE cable kit can be purchased for the "s" models to connect up to two IDE
drives to the motherboard IDE controller, in addition to the SCSI devices.

Q. PS/2 Model 76/77i and 76/77s models can take Error Checking and Correcting
(ECC) memory as well as "normal" parity memory.  Can they be mixed, or must all
SIMMs be either one or the other type?
A. They must either be all ECC or all parity RAM SIMMs.  Some models come with
ECC memory installed, so to use parity memory all the ECC SIMMs must be
replaced, and vice versa for the parity models. |

Drive/Adapter/IML/Reference Diskette
Q. What parameters do I need to use to format a 1.44MB diskette to 1.44MB in a
2.88MB drive?
A. Because the 2.88MB drive is media-sensing, no special parameters are needed
with the FORMAT command.  Simply typing FORMAT A: (or whatever drive letter is
appropriate for that drive) will format a 720K or 1.44MB diskette to the
appropriate capacity, barring a hardware problem.

Q. I tried to format a 1.44MB diskette to 1.44MB capacity in a 2.88MB drive,
using FORMAT A:, but I get "sector not found" errors.  The same diskette works
in a 1.44MB drive.  What's the problem?
A. If a 1.44MB diskette was previously formatted to 720K, or vice-versa, it may
fail when attempting to format it to the "correct" capacity in the future.  Try
formatting it to 1.44MB on a 1.44MB drive.  Then, if successful, try formatting
it to 1.44MB again on the 2.88MB drive.  It may work this time.  If not, do not
use it on a 2.88MB drive.

Q. What does IML stand for (as in "IML partition")?
A. Initial Microcode Load, This is where your BIOS and your copy of the
Reference Diskette is stored in a 3MB protected partition on your hard disk.

Q. On what drive does the IML partition reside on a 76/77?
A. On the 76/77 models that include a SCSI adapter, the IML partition is
contained on the drive set to SCSI ID 6 on the SCSI adapter in the
lowest-numbered adapter slot (where adapter slot 1 is lower than slot 3), if
you have more than one SCSI adapter.  On the 76s/77s models, the IBM partition
is contained on the drive set to SCSI ID 6 attached to the SCSI adapter on the
motherboard.  (Any additional SCSI adapters would be in an adapter slot number
higher than the "slot 0" of the motherboard controller.) |

Q. On the PS/2 Models 76 and 77, does the SCSI drive that contains the IML
partition (with the BIOS and configuration program) need to be set up
differently than the other drives?
A. Yes.  This drive must be configured for SCSI ID 6. The motherboard ROM will
always look for the drive configured as SCSI ID 6 to find the BIOS and
Reference Diskette information, regardless of which drive is currently
designated as the primary bootable drive.

Q. Are there any limitations to the size of SCSI drives that I can install in a
76/77?
A. Yes.  There is a 1GB limitation for the primary drive that will be holding
the IML partition.  Also, if using a non-IBM drive that is larger than 1GB as a
non-primary drive, the IML setup program may not display the correct size.
Contact the drive vendor for compatibility information.  Other than those
limitations, SCSI drives can be as large as the power supply will support.

Q. What do I need to do if I want to install a second IBM hard disk in a 76/77?
A. All our hard disk SCSI drives come pre-set at ID 6.  When installing a
second drive you need to first change the ID to a lower number; then install
the drive and run the Reference Diskette auto-config program.

Q. Is it possible to boot to an internal 5.25 drive in a 76/77? |
A. Yes. You have the option to use "selectable boot" from the Reference
Diskette to select what drive you would like to boot from. Caution:  If you use
this your logical drive letters may change.

Q. What could cause the PS/2 Models 76 and 77 not to be able to boot from the
primary hard disk drive if they pass diagnostics?
A. If you know you have an operating system installed on the drive, and you can
do a DIR from a bootable DOS diskette, then make sure that the hard disk drive
on which you have installed the operating system is designated as a bootable
drive when you set up selectable boot.

Q. What happens if I use selectable boot and make my system not see my 1.44, A:
drive?  How will it see the Reference Diskette?
A. There is a "safety" device that always looks at the A: drive for a Reference
Diskette.  If there is a Reference Diskette in the drive it will override
"selectable boot".

Q. When I try to boot from a DOS diskette to install the operating system, the
system goes straight to BASIC.  Yet when I boot to the Reference Diskette, it
works fine.  What's the problem?  I've tried two copies of DOS, so it's not a
bad diskette or diskette drive.
A. Boot from the Reference Diskette, and look at the drive boot sequence.  Most
likely the boot sequence does not include the A: drive (which may have been
intentionally or accidentally excluded).  With the A: drive excluded, only the
Reference Diskette will boot from it. Adding the A: drive to the boot sequence
should correct the problem.

Miscellaneous
Q. Are the Model 76 and 77 systems EPA Energy Star-compliant?
A. No, however with the proper power-management drivers (M76PMO.ZIP for OS/2,
or M76PMD  for DOS/Windows, available on the IBM PC Company BBS, CompuServe,
and other electronic sources), Energy Star-compliant monitors (such as the IBM
P and V series) connected to the "s" and "i" models (9576-Axx/Bxx,
9577-Axx/Bxx) will be able to operate in VESA power-saving modes.

Choose the section to which you wish to jump, below:

 Q&As
 PS/2 Model 25/25-286/25SX Q&As               PS/2 Model 55/65 Q&As
 PS/2 Model 30/30-286 Q&As                    PS/2 Model 56/57/M57 Q&As
 PS/2 Model 35/40 Q&As                        PS/2 Model CL57 Q&As
 PS/2 Model L40 Q&As                          PS/2 Model P70/P75 Q&As
 PS/2 Model N45 Q&As                          PS/2 Model 76/77 Q&As
 PS/2 Model N51 Q&As                          PS/2 Model 90 Q&As
 PS/2 Model 53 Q&As                           PS/2 E Q&As

 Non-Micro Channel (ISA) PS/2 Service Q&As    Micro Channel PS/2 Service Q&As
 PS/2 General Video Q&As                      PS/2 General Disk Drive Q&As
 Miscellaneous System Q&As

 To return to the PS/2 Systems Q&As header, double-click here.


ΓòÉΓòÉΓòÉ 7.13. PS/2 Model 90 Q&As ΓòÉΓòÉΓòÉ

Processor/Memory
Q. Is the processor in my PS/2 Model 90 upgradeable?
A. Yes.  All models include the processor on a special "processor complex"
card.  This card can be replaced with any other processor complex, upgrading
not only the processor but the cache, and bus architecture and other circuitry
as well.  This means that a simple processor upgrade can produce much more,
including support for ECC memory, 2.88MB diskette drives, faster bus transfer
rates, and other enhancements.

Q. If I want to install additional memory in a MOdel 90, what do I need?
A. To install memory in a 0Jx or 0Kx model you will need to add two memory
SIMMs of the same speed in matching slots.  You cannot just add one SIMM at a
time.  The 0Gx, 0Hx, xLx, and newer 486 models models allow the use of single
SIMMs, as well as matched pairs.  Because of the design of the Pentium
processor, all Pentium-based models must upgrade memory in pairs of SIMMs.  See
your HMR manual for more information on matching slots.

Q. In the systems that can use different speeds SIMMs, if I add slower RAM (80
or 85ns) to a system that already has 70ns memory installed, will the system
run slower for all memory accesses, or just when the slower SIMMs are used?
A. Only when the slower RAM is accessed.  So make sure to put the slowest SIMMs
after all the faster ones, so they are accessed least often.

Q. Can I add the 256K memory cache option to the 486SX processor in a 90?
A. No, only the 486DX, DX2, or Pentium processor complexes will support an
external cache.

Hard Disk/IML/Selectable Boot/Reference Diskette
Q. What does IML stand for (as in "IML partition")?
A. Initial Microcode Load, This is where your BIOS and your copy of the
Reference Diskette is stored in a 3MB protected partition on your hard disk.

Q. On what drive does the IML reside on a 90/95?
A. The IML has to reside on the first SCSI drive on the first SCSI adapter.

Q. On the PS/2 Models 90 and 95, does the SCSI drive that contains the IML
partition (with the BIOS and configuration program) need to be set up
differently than the other drives?
A. Yes.  This drive must be configured for SCSI ID 6. The motherboard ROM will
always look for the drive configured as SCSI ID 6 to find the BIOS and
Reference Diskette information, regardless of which drive is currently
designated as the primary bootable drive.

Q. Are there any limitations to the size of SCSI drives that I can install in a
90/95?
A. Yes.  Except for the xNx/xPx/xQx models, there is a 1GB limitation for the
primary drive that will be holding the IML partition.  Also, if using a non-IBM
drive that is larger than 1GB as a non-primary drive, the IML setup program may
not display the correct size.  Contact the drive vendor for compatibility
information.  Other than those limitations, SCSI drives can be as large as the
power supply will support.  IBM now offers drives in excess of 4.5GB apiece for
all Server 95 models.

Q. What do I need to do if I want to install a second IBM hard disk in a 90/95?
A. All our hard disk SCSI drives come pre-set at ID 6.  When installing a
second drive you need to first change the ID to a lower number; then install
the drive and run the Reference Diskette auto-config program.

Q. Is it possible to boot to an internal 5.25 diskette drive in a 56/57/90/95?
A. Yes. You have the option to use "selectable boot" from the Reference
Diskette to select what drive you would like to boot from. Caution:  If you use
this your logical drive letters may change.

Q. What could cause the PS/2 Model 90 not to be able to boot from the primary
hard disk drive if they pass diagnostics?
A. If you know you have an operating system installed on the drive, and you can
do a DIR from a bootable DOS diskette, then make sure that the hard disk drive
on which you have installed the operating system is designated as a bootable
drive when you set up selectable boot.

Q. What happens if I use selectable boot and make my system not see my 1.44, A:
drive?  How will it see the Reference Diskette?
A. There is a "safety" device that always looks at the A: drive for a Reference
Diskette.  If there is a Reference Diskette in the drive it will override
"selectable boot".

Q. When I try to boot from a DOS diskette to install the operating system, the
system goes straight to BASIC.  Yet when I boot to the Reference Diskette, it
works fine.  What's the problem?  I've tried two copies of DOS, so it's not a
bad diskette or diskette drive.
A. Boot from the Reference Diskette, and look at the drive boot sequence.  Most
likely the boot sequence does not include the A: drive (which may have been
intentionally or accidentally excluded).  With the A: drive excluded, only the
Reference Diskette will boot from it. Adding the A: drive to the boot sequence
should correct the problem.

Q. When the "L2" (level 2, or external) cache option is installed in a PS/2
Model 90, will it show up on the Reference Diskette configuration screens?
A. No.  If everything is working as expected you will receive no indication.
If there is a hardware problem, it will show up during POST or Advanced
Diagnostics, just as with any other hardware problem.

Q. What is the DISK386.SYS driver (on the Reference Diskettes) for?
A. The PS/2 Model 90 Reference Diskettes contain an update program
(DISK386.SYS) and an installation program.  The update program maintains
compatibility between SCSI devices, IBM DOS, and some of the following types of
programs that assume the hard disk drive will utilize the system Direct Memory
Access (DMA) controller:

     Multitasking DOS programs
     Programs written for the 80386 microprocessor only
     Programs that use the virtual 8086 mode of the 80386 microprocessor
     Programs that emulate expanded memory specification (EMS) in extended
      memory.

 The update program should only be installed when applications providing DOS
 and/or memory extensions fail to work properly.  For example, an application
 may fail to load and return the DOS prompt or when attempting to access a SCSI
 device, the system may hang or the screen may go blank.

 With this update program installed, a buffer is provided in the first megabyte
 of system memory, which serves as an intermediate location for data being
 transferred between the SCSI adapter and the requesting program buffer.  While
 this update program allows applications that utilize the system DMA controller
 to run, some performance degradation in file access time may be experienced.
 Only after problems have been experienced, and the performance implications
 considered, should this update program be utilized.

 Miscellaneous
 Q. I know that the 56/57/76/77/85/90/95 systems use serial and parallel ports
 capable of high-speed DMA transfers, but how do I know if my system is set up
 to use DMA?
 A. Simple.  Start the System Program (either from the System Partition on your
 hard disk drive, or the Reference Diskette), and look at the Arbitration Level
 for the serial and parallel ports. The parallel port should be set to Shared
 7, and the serial port should be set to Shared 4 for Transmit Arb Level, and
 Shared 3 for Receive Arb Level.  If your system has two DMA serial ports, the
 second serial port should be set to Shared 6 for Transmit Arb Level, and
 Shared 5 for Receive Arb Level.  These are the defaults.  If the ports are set
 this way, they are using DMA transfers.

 Q. Is the IBM Data Migration Facility (DMF) supported on the PS/2 Model 90?
 A. DMF is supported on all PS/2 models except the 90 and 95.

 Q. Are the Model 90s EPA Energy Star-compliant?
 A. No.  The Energy Star program did not yet exist when these systems were
 designed.

 Choose the section to which you wish to jump, below:

 Q&As
 PS/2 Model 25/25-286/25SX Q&As               PS/2 Model 55/65 Q&As
 PS/2 Model 30/30-286 Q&As                    PS/2 Model 56/57/M57 Q&As
 PS/2 Model 35/40 Q&As                        PS/2 Model CL57 Q&As
 PS/2 Model L40 Q&As                          PS/2 Model P70/P75 Q&As
 PS/2 Model N45 Q&As                          PS/2 Model 76/77 Q&As
 PS/2 Model N51 Q&As                          PS/2 Model 90 Q&As
 PS/2 Model 53 Q&As                           PS/2 E Q&As

 Non-Micro Channel (ISA) PS/2 Service Q&As    Micro Channel PS/2 Service Q&As
 PS/2 General Video Q&As                      PS/2 General Disk Drive Q&As
 Miscellaneous System Q&As

 To return to the PS/2 Systems Q&As header, double-click here.


ΓòÉΓòÉΓòÉ 7.14. PS/2 E Q&As ΓòÉΓòÉΓòÉ

Processor
Q. Why the 486SLC2 chip versus the Intel 486SL/SX/DX/DX2 series or Pentium?
A. The 486SLC2 chip is a terrific price-performer, and (like only the 486SL
among the Intel chips, prior to June 1993) offers advanced power management.

Q. Is the system upgradeable to a 486DX2 or other Intel processor?
A. No.

Q. IBM offers a 486SLC3 upgrade for the 486SLC2-based 9556/57 models.  How
about the PS/2 E (9533)?
A. There is no 486SLC3 upgrade offered for the PS/2 E.

Monitor/Video
Q. The 9507 flat-panel color LCD display is awfully expensive.  Do I have to
buy a PS/2 E with this monitor?
A. Not at all.  Only the 9533-P01 through -P09 models are bundled with the 9507
display.  You may buy the 9533-P11 through -P19 models, which come with the
9524 14" (13.0" diagonal viewable area) energy-saving conventional CRT monitor.
Or you may buy the 1BX/2BX/Dxx/Gxx models, which include no monitor at all, and
use your favorite low-power VGA/XGA2-compatible monitor (including IBM's entire
line of 952x monitors).

Q. Why does the 9507 TFT (color LCD) monitor have an external power supply?
A. The power supply is designed for floor-mounting, reducing the volume and
footprint requirements of the workstation, as well as the cabling requirements.
The external PS allows flexibility in the design of the work area.

Q. Why does the 9507 TFT (color LCD) monitor default to 16 colors under Windows
3.1 or OS/2?
A. While the 9507 is capable of 640x480x256 colors, there may be some
dissatisfaction with the result.  Large areas of uniform color may appear
blotchy, depending on the colors used.  It is possible to lessen the effect by
selecting other colors.  For this reason, 256 colors in 640x480 mode has not
been claimed.  If you are satisfied with the results, feel free to use a
256-color driver.

Q. My 9507 monitor seems to streak badly at times, especially when running
Windows 3.1.  What's wrong?
A. A few "dithered" (alternating different colored pixels to achieve colors or
shades not producible as a solid color) background patterns can cause this
effect.  The "50% Gray - Desktop" pattern in Windows 3.1 is probably the most
widely observed example.  It is recommended that other patterns, or solid
colors, be used to reduce or eliminate this problem.

Q. I seem to have a few "burned out" pixels on my 9507 monitor.  Is it
defective?
A. Due to the current state-of-the-art in TFT technology, it is impossible to
have 100% defect-free TFT LCD panels.  There will almost always be a few bad
sub-pixels among the 1,000,000+ on each panel. The ISO 9241 Panel Addendum
(Draft) industry video specification permits up to 10 defective sub-pixels on a
panel to be considered suitable for customer shipment.

PCMCIA
Q. The announcement letter says that the PS/2 E comes with four PCMCIA sockets
and says nothing about ISA slots, yet the list of supported adapters includes
several ISA cards. In addition, two PS/2 E models come with ISA network
adapters installed.  So what adapter slots actually come with the system?
A. The four PCMCIA slots are actually connected to one ISA adapter.  By
removing this adapter (and the PCMCIA slots) one ISA slot is made available.
So a user preferring one ISA adapter to four PCMCIA cards may do so.

Q. Can any ISA adapters be used in that one slot if the PCMCIA slots are
removed?
A. Only the IBM ValuePoint ISA 10BaseT adapter (P/N 32G4134), Enhanced 5250
Emulation Adapter Kit (30F5383 or 30F5622), 16/4 Token Ring Adapter (73G2032),
and M-Audio Capture and Playback Adapter (M-ACPA, 92F3378) are supported.
Other adapters may work, but have not been tested and are not supported.

Q. Why don't you conform to the Intel PCMCIA standard?
A. IBM participated in the PCMCIA group and supports that industry standard.
Intel is working to update the standard based on its ExCA specification, and in
time these may be accepted into the PCMCIA specification.  But at the current
time it is not part of the PCMCIA standard.

Power Management
Q. What are the energy requirements for the system unit and monitors?
A. System Unit= 23 Watts(peak)/16W(idle mode); 9507 (TFT color LCD)
Monitor=37W/17W; 9524 Monitor=110W/8W.

Q. How have you reduced the power requirements?
A. By developing monitors that utilize idle modes, systems that run amazingly
quiet because they do not need a fan, and low power design, such as 2.5-inch
disk drives, PCMCIA expansion cards, and 3.3 Volt vs. 5V technology.

Q. Where do I find the power management drivers?
A. Look on the IBM PC Company BBS for a file called PS2E.DSK.  (It requires the
LDF.COM program, also downloadable from the BBS, to unpack and create a
bootable disk image.)

TrackPoint II
Q. What is the "integrated pointing stick" I've heard about?
A. The TrackPoint II is essentially a miniature joystick located on the
keyboard between the G and H keys, allowing use without having to lift the
hands from the "home row".  It replaces a mouse or trackball.

Q. What is the advantage of using the integrated TrackPoint II "pointing stick"
on the keyboard, instead of a mouse or "clip-on," or a trackball?
A. There are several: 1) Because it is located between the G and H keys on the
"home row" a touch typist never has to raise his hands from the keyboard to
"mouse around," 2) It is faster and more accurate than a trackball, 3) It
doesn't require the "external" space of a mouse, 4) It doesn't have to be
continually detached and reconnected, the way a clip-on does, 5) It never needs
cleaning, and 6) Because it comes integrated into the keyboard, it doesn't have
to be purchased separately.

Q. How do I get replacement "eraser heads" for the TrackPoint II pointing
device?
A. Use part number 54G0439 when calling the IBM Parts Order Center,
800-388-7080, or have an IBM Authorized Remarketer order them for you..

Disk Drive
Q. Isn't that 120MB drive awfully small?
A. While the original models only offered 2.5" 120MB drives, later models were
introduced with 340MB drives.  The 2.5" drives were chosen both for their
low-power consumption (remember, the PS/2 E line was not designed to offer the
biggest, fastest PCs available, but for the lowest power usage), and because
they were designed for sleep mode in a power-managed environment.  However the
use of 2.5" drives limits the capacities available for selection.  Those
considering a PS/2 E should ensure that 120MB or 340MB of hard disk space will
meet their needs; or that they have open PCMCIA slots that can be populated
with additional PCMCIA storage.

Q. Can I upgrade to a larger drive?
A. The PS/2 E's do not use standard 3.5" IDE drives, but 2.5" IDE drives, much
like notebook computers.  You may be able to find a 2.5" drive that will have
the appropriate attachment hardware, but IBM doesn't offer any optional drives,
other than the 120MB drive for the diskless LAN-station models.  On the other
hand, IBM and other vendors offer 40MB-105MB PCMCIA (Type III) hard disk drives
(using 1.8" disks), 5MB-15MB (Type II) flash memory "disk" drives, 5MB-15MB or
larger (Type II) solid-state "disk" drives, and other forms of storage on
PCMCIA cards; even externally-attached IDE or SCSI hard drives.  And, of
course, disk-compression software, such as Stacker for DOS and OS/2 (FAT only),
or DCF/2 (for OS/2 FAT and HPFS only) can help stretch limited available space.

Choose the section to which you wish to jump, below:

 Q&As
 PS/2 Model 25/25-286/25SX Q&As               PS/2 Model 55/65 Q&As
 PS/2 Model 30/30-286 Q&As                    PS/2 Model 56/57/M57 Q&As
 PS/2 Model 35/40 Q&As                        PS/2 Model CL57 Q&As
 PS/2 Model L40 Q&As                          PS/2 Model P70/P75 Q&As
 PS/2 Model N45 Q&As                          PS/2 Model 76/77 Q&As
 PS/2 Model N51 Q&As                          PS/2 Model 90 Q&As
 PS/2 Model 53 Q&As                           PS/2 E Q&As

 Non-Micro Channel (ISA) PS/2 Service Q&As    Micro Channel PS/2 Service Q&As
 PS/2 General Video Q&As                      PS/2 General Disk Drive Q&As
 Miscellaneous System Q&As

 To return to the PS/2 Systems Q&As header, double-click here.


ΓòÉΓòÉΓòÉ 7.15. PS/2 General Video Q&As ΓòÉΓòÉΓòÉ

Q. I have a large-screen monitor with BNC connectors, instead of a D-shell
connector.  How can I to connect this to a VGA/SVGA/XGA adapter?
A. There are many variables that will determine whether it can be used with
your adapter at all.  Be sure to contact the monitor vendor to find out if it
is even compatible with the signals generated by your adapter.  If so, find out
whether the monitor vendor sells a conversion cable for this purpose.  If not
there are companies that can make custom cables for this purpose.  Two examples
are Cable Connection (408-379-9224) and Custom Connection (408-370-0990).
There are many other such companies as well.

Q. Why do the 8517/9517/9527 monitors have thin vertical and horizontal lines
on the screen, and is there any way to make them disappear?
A. These monitors use the state-of-the-art Sony Trinitron picture tubes, which
require hair-thin support wires for the vertical and horizontal aperture
grills.  The lines you see are shadows from those wires, and are typically only
visible with white or light-colored backgrounds, like those used by Windows and
OS/2.  They are not noticeable to many people, and often may disappear if a
darker background color is used.  These lines are typical of all monitors using
Trinitron tubes, and are not unique to the IBM monitors.

Q. Why don't the top-of-the-line IBM monitors, like the 9521 and 9527 seem as
sharp as many of the competitive displays?
A. All IBM displays use etching or other anti-glare treatment, or both, to
reduce eye-strain from reflected glare.  Many competitive monitors do not.  To
reduce eye-strain on those monitors an external screen or other anti-glare
treatment is necessary (at additional cost).  In addition these external
treatments can result in blurry or washed out images, and even introduce
parallax (double-image) problems.  While competitive monitors may appear
sharper on the shelves, by the time external anti-glare treatments are added
the end-result is usually less clear than the IBM displays in actual use.
Without these anti-glare shields the reflections on the screens are distracting
at best, and can cause eye-fatigue at worst.

Q. What makes XGA-2 better than XGA?
A. In addition to all of the features of the XGA, XGA-2 runs up to 2.5 times
faster than XGA, and supports non-interlaced (flicker-free) 1024x768 resolution
and interlaced 1280x1024 resolution.  It is ISO 9241, Subpart 3 compliant, when
used with an ISO-compliant monitor (such as the IBM 95xx displays).

Q. I have an XGA running in 1024x768 mode now, with visible flicker.  Will
replacing the adapter, but keeping my present display eliminate the flicker?
A. It depends on your monitor.  If the display is capable of running in
1024x768 mode non-interlaced, then yes, you can.  If not the display will
continue to run interlaced, despite the adapter.

Q. Can I attach an 8516 color touch screen display to a non-Micro Channel PS/2
or clone system and have it work as a touch screen?
A. No.  To use the 8516 as a touch screen monitor you must use the 8516 Option
Diskette (that comes with the display) to update the System Partition and/or
the Reference Diskette that come with the system.  Without the Option diskette
the 8516 will act as a standard 8515 color monitor.  As AT-bus PS/2s and clones
do not use Reference Diskettes (or equivalent System Partitions) there is no
way to install the touch screen hardware support.  Only Micro Channel PS/2s,
ThinkPads, and possibly some MC clones work this way.

Q. Does the 8516 touch screen display require special software to operate?
A. Not necessarily.  To take full advantage of the 8516's 256-levels of
pressure sensitivity, software would have to be redesigned.  However, the 8516
also fully emulates an IBM or Microsoft mouse plugged into a PS/2 mouse port.
So all existing OS/2 or Windows software should work with the 8516 just as it
would with a mouse.  In addition, both the mouse and the 8516 can be used
simultaneously where a combination of the two is desirable.

Q. My 8516 touch screen doesn't seem to be as "accurate" as it used to?  Does
it need servicing?
A. Not necessarily.  If you have relocated the display, or have bumped or
otherwise moved the 8516 on the desk, it may just require recalibration.  This
can be done quickly and easily by the user following the instructions included
with the display, using the supplied software.

Q. What drivers come with the XGA adapter?
A. DOS 3.3/4.0, OS2 1.2 (OS/2 1.3 and later includes an XGA driver),
Windows/286 V2.1, Windows 3.0, AutoCAD release 10 and AutoCAD/386 release 10.
These are all on two diskettes that are shipped with the systems and with the
adapter, if sold separately.

Q. What makes XGA better than 8514/A or VGA?
A. Several things.  First, it is a 32-bit bus master adapter optimized for
bitmapped applications (such as Windows and OS/2), which means significantly
better performance than the 8514/A in 1024x768 resolution mode; both because of
the wider data path and the on-board processor.  Then, the use of built-in
16-bit VGA circuitry means better performance in VGA mode than the 8-bit VGA
built into previous PS/2 motherboards, which was also passed through from the
motherboard VGA chip to the 8514/A adapter. Finally, XGA provides up to 65,535
colors in 640x480 mode (if an application is written to utilize this mode), in
addition to the 16 and 256 color modes offered for that resolution by the
8514/A.

Q. If XGA is so much better than 8514/A, is there any advantage to the 8514/A
adapter?
A. Yes.  The 8514/A is compatible with all PS/2s from the Model 50-80 (except
P70/P75/76/77); but XGA requires a system with a 32-bit processor (for 32-bit
instructions).  This means that the XGA cannot be used in any 286-based PS/2s,
including the Models 50, 50Z, and 60.  Therefore an 8514/A or other adapter
would have to be used to upgrade those systems to better than VGA graphics.

Q. What's the difference between XGA and XGA-2?
A. Where XGA only supported 640x480 (or lower) resolution in non-interlaced
mode, and 1024x768 resolution in interlaced, XGA-2 can support up to 1024x768
resolution in non-interlaced, flicker-free mode, plus 1280x1024 (16-color,
interlaced).  In addition, XGA-2 comes with 1MB of video memory standard
(compared to 512K for XGA, upgradeable to 1MB), supports 256 gray-shades
(versus 64), supports 800x600 resolution (with up to 64K colors), and is more
than twice as fast as XGA, at a much lower price.

Q. What drivers come with the XGA-2 adapter?
A. DOS 3.3 or higher, OS/1 1.3, OS/2 2.0 (OS/2 2.1 and higher include an
XGA/XGA-2 driver), Windows 3.x, AutoCAD release 10/11, and AIX PS/2 1.3.  These
are all on two diskettes that are shipped with the systems and with the
adapter, if sold separately.

Q. What resolutions/frequencies/colors does the XGA-2 adapter support?
A. For this information, please refer to the "XGA-2/Monitor Compatibility"
document in the PC Hardware Tips section.

Q. Do the XGA and XGA-2 adapters support 132-column text mode?
A. Yes.  Both support it in (8-pel per character) 1024x768 resolution; XGA-2
also supports 132-column text in (9-pel per character) 1188x400, 1188x350, and
1188x200 resolutions.

Q. I just heard about an IBM device driver that would let me "flow" my OS/2 or
Windows desktop across multiple XGA adapters?  How can I get it?
A. IBM sells the Multiple XGA (MXGA) Display Device Driver as part number
83G8292.  It supports between 2 and 8 XGA and/or XGA-2 adapters (but there must
be at least one XGA-2 adapter among them) on an OS/2 2.1 (or later) or Windows
3.1 system.

Q. Does the IBM MXGA device driver support non-IBM ISA XGA adapters, or just
IBM Micro Channel?
A. The MXGA driver should work with any IBM or non-IBM adapter that uses the
IBM XGA or XGA-2 chip, and works with OS/2.  A number of vendors make XGA-2
adapters, including Catseye, Infotronic, Nth Graphics, and Radius.  Nth
Graphics, for example, sells compatible ISA and Micro Channel adapters that
even contain two XGA-2 chipsets and ports on one card, allowing you to attach 8
displays while only taking up 4 adapter slots.

Q. If I attach up to 8 monitors to my system and flow my OS/2 Desktop across
them, do they all have to be side-by-side?  (I'd need a very wide desk!)
A. No.  In fact, there are several arrangements of monitors that you can
choose, including 2x2 and 2x4 (two monitors stacked above one another by four
monitors wide).

Q. What does this driver do, exactly?
A. It creates a "virtual desktop" in memory and displays portions of it on each
of the monitors.  If you look at a single monitor and draw imaginary horizontal
and vertical lines dividing it into four quadrants, that is how your virtual
desktop would look if you had four monitors arranged in a 2x2 fashion.  Your
icons and program windows would stay the same size as before, but you would
have four times the desktop "surface" to work on.  As you drag an object across
the desktop and you reach the edge of one monitor screen, the object will
disappear and reappear on the next one.  You can even have a window spanning
multiple monitors, or portions of multiple monitors, if you wish.

Q. Do all the monitors have to be identical?
A. Not at all, but they must be running at the same resolution; and for
usability reasons it's best if they all have the same screen size, but that is
not a requirement.

Choose the section to which you wish to jump, below:

 Q&As
 PS/2 Model 25/25-286/25SX Q&As               PS/2 Model 55/65 Q&As
 PS/2 Model 30/30-286 Q&As                    PS/2 Model 56/57/M57 Q&As
 PS/2 Model 35/40 Q&As                        PS/2 Model CL57 Q&As
 PS/2 Model L40 Q&As                          PS/2 Model P70/P75 Q&As
 PS/2 Model N45 Q&As                          PS/2 Model 76/77 Q&As
 PS/2 Model N51 Q&As                          PS/2 Model 90 Q&As
 PS/2 Model 53 Q&As                           PS/2 E Q&As

 Non-Micro Channel (ISA) PS/2 Service Q&As    Micro Channel PS/2 Service Q&As
 General Video Q&As                           PS/2 General Disk Drive Q&As
 Miscellaneous System Q&As

 To return to the PS/2 Systems Q&As header, double-click here.


ΓòÉΓòÉΓòÉ 7.16. PS/2 General Disk Drive Q&As ΓòÉΓòÉΓòÉ

Q. I understand about SCSI and IDE drives, but some of the older PS/2 systems
used drives called "ST-506," ESDI," "DBA," "MFM," and "RLL."  Please explain.
A. Sure.  ST-506 was a drive technology developed by Seagate Technologies in
the early days of PCs.  Without getting technical, it was slow, and didn't
store data very densely, by today's standards; and every combination of heads,
platters, and cylinders used by different drives required a unique Drive Type
code, which greatly complicated the act of installing and replacing drives.
This was the technology used in the old IBM PC/XT and PC/AT (and clone)
systems.  A newer technology came out later called Enhanced Small-systems
Device Interface (ESDI) that improved on the speed and storage density of hard
drives, but was more expensive.  So when the PS/2s first came out, the low-end
(40MB) drives used in the PS/2 Models 60 and 80 were ST-506, while the larger
(70MB-314MB) drives were ESDI.  These were all 5.25" drives with large cable
connectors.  Unfortunately these connectors were too large for the desktop PS/2
Models 25/30/50/55/70/P70, which used 3.5" drives.  Also, due to the compact
design of these PS/2s, there was little room for bulky cables, so IBM devised a
new connector for the drives that was smaller and attached directly to a riser
card connected to the system board.  This type of drive connector was unique to
IBM systems (IDE didn't yet exist in 1987 when the PS/2s came out) and was
called DBA (Direct Bus Attach).  All of these early ST-506 and ESDI drives
encoded the data on the drives using a technique called Modified Frequency
Modulation (MFM), but a newer technology came along later called RLL
(Run-Length Limited) that allowed data to be written more efficiently on the
drive, allowing greater capacity.  For example, all of the 60MB and 120MB DBA
drives used in the Models 50/55/70/P70 were MFM, but when manufactured using
RLL encoding, these same drives were able to store 80MB and 160MB,
respectively.

So while it is correct to say that the 3.5" PS/2 drives were ST-506-like and
ESDI-like (the drives and controllers were compatible), they used DBA
connectors, rather than ST-506 or ESDI cables/connectors, so they are not
interchangeable with true ST-506 or ESDI drives.

Note:  To confuse things further, even though the 20MB to 40MB drives used in
the Models 25/30 and those used in the 50/55 were all considered "DBA" drives
(because they attached directly to a riser card without an intervening cable),
they are not interchangeable.  The connectors used on the Micro Channel PS/2
hard drives had more pin connections than those used on the AT-bus PS/2 models.
And the drives used in the later PS/2 Models 35 and 40 were true IDE drives
(now that there was an industry standard for 3.5" drives).

Q. Is OS/2 ASPI-enabled for SCSI devices?
A. Yes.  Warp is fully ASPI-enabled, but OS/2 2.1 is only enabled for OS/2
applications.  ASPI support for DOS sessions is not included in OS/2 2.1.  For
DOS application ASPI support, try downloading the file ASPI4B.ZIP [that's an
"i", not a "1" preceding the 4] from the IBM PC Company BBS; or VASPBETA.ZIP
from the Adaptec BBS (408-945-7727) and follow the instructions for installing
the drivers.  The latter driver was developed by Adaptec, and has not been
tested by IBM.  If you have problems with it, contact Adaptec (on their BBS at
408-945-7727, their voice phone number, or on the Internet at
[e-mail]), not IBM.  In addition, Corel offers a product called
EasySCSI that contains a DOS ASPI driver for the IBM SCSI adapters and others.
In Warp, the VASPI.SYS driver provides support in DOS/Windows sessions, and
OS2ASPI.DMD continues to provide OS/2 session support.  This driver replaces
the beta ASPI4B.ZIP and VASPBETA.ZIP drivers used with OS/2 2.1.

Q. I just installed a third SCSI hard drive on my system, expecting it to be
recognized as drive E:, but instead it is drive D:, and my previous D: drive
shows up as E:. What happened, and how do I fix it?
A. This is setup problem.  Your SCSI adapter uses SCSI ID numbers (from 6 down
to 0) to identify the hard drives (and other devices) attached to it.  The SCSI
ID of the new drive is higher than that of the previous D: drive, causing the
adapter to reassign the drive letters.  To "correct" this, simply change the
SCSI ID of either or both drives so that the ID of the new drive is lower than
that of the older drive you want to appear as D:.

Note:  Be sure that each drive has a unique SCSI identifier (i.e., no two
devices on the same controller can have ID 4). |

Note:  Using Selectable Boot to change the start sequence will also change
which drive is C:. |

Q. Is there an easy way to tell the difference between an IBM CD-ROM I drive
and a CD-ROM II drive?
A. Yes.  The original drive had the eject button below the disk slot, while the
eject button in the newer type II drive is above the slot.

Q. Do the 5.25" disks used by the IBM Rewritable Optical disk drives conform to
industry standards?
A. Yes, the ISO standard for 130mm Rewritable Optical Disk Cartridges for
Information Exchange ISO/IEC 10089, 1991 (format A).

Q. What's the difference between the 512-byte/sector disks (P/N 49G7797) and
the 1024-byte/sector disks ( 94F9479) used by the rewritable optical drives?
A. The 512-byte/sector disks are used with DOS or OS/2 FAT file systems, and
hold 595MB of data.  OS/2 2.0 and higher users can use the High Performance
Optical File System (HPOFS) supplied with the 3431 to format the
1024-byte/sector disks to 650MB capacity.

Q. If I want to install more than two hard drives in my system, do I need to do
anything with my software?
A. It depends on your operating system type and version.  For DOS 4.0 you need
CSD 31300 or higher, and for OS/2 1.2 you need CSD 4098 or higher.  DOS 3.3
will not support more than two drives.  OS/2 version 1.3 and higher, and DOS
version 5.0 and higher will support up to 24 hard disk drives/partitions.
Nothing special needs to be done to application software.

Q. What happens if I use selectable boot and make my system not see my 1.44, A:
drive?
A. There is a "safety" device that always looks at the A: drive for a Reference
Diskette.  If there is a Reference Diskette in the drive it will override
"selectable boot".

Q. If I have a problem with my SCSI Adapter with Cache, do I take my memory off
before sending it in to the dealer Warranty Claim Center?
A. No, you must send this card in with memory intact.  The card you receive
will have memory on it.

Q. Does the IBM CD-ROM drive conform to the High Sierra (ISO 9660) standard,
and/or the Microsoft CD-ROM Extensions?
A. Yes, to both standards.

Q. I have an external 5.25" 1.2MB diskette drive connected to a PS/2 via the
1.2MB diskette drive adapter (P/N 6451007). It defaults to the next available
drive letter after C:.  Is there any way to make this adapter act as drive B:?
A. Yes.  Under DOS the ASSIGN command may be used to swap the addresses to two
drives.  For example: ASSIGN B: D: (where D: is the current designation).  Most
programs will recognize the external 1.2MB drive as B:, however some programs
may not. There is no equivalent function in OS/2.

Choose the section to which you wish to jump, below:

 Q&As
 PS/2 Model 25/25-286/25SX Q&As               PS/2 Model 55/65 Q&As
 PS/2 Model 30/30-286 Q&As                    PS/2 Model 56/57/M57 Q&As
 PS/2 Model 35/40 Q&As                        PS/2 Model CL57 Q&As
 PS/2 Model L40 Q&As                          PS/2 Model P70/P75 Q&As
 PS/2 Model N45 Q&As                          PS/2 Model 76/77 Q&As
 PS/2 Model N51 Q&As                          PS/2 Model 90 Q&As
 PS/2 Model 53 Q&As                           PS/2 E Q&As

 Non-Micro Channel (ISA) PS/2 Service Q&As    Micro Channel PS/2 Service Q&As
 PS/2 General Video Q&As                      PS/2 General Disk Drive Q&As
 Miscellaneous System Q&As

 To return to the PS/2 Systems Q&As header, double-click here.


ΓòÉΓòÉΓòÉ 7.17. Non-Micro Channel (ISA) PS/2 Service Qs & As ΓòÉΓòÉΓòÉ

Q.  When I connect a Microsoft Mouse to the PS/2 Model L40 mouse port, and
suspend the system (by closing the lid), the mouse won't work when I reopen it.
If I connect the mouse serially and suspend, the mouse works fine.  Also, if I
use an IBM mouse on the mouse port, it works too.
A.  This is a known problem with the L40, having to do with the specific
voltage requirements of the Microsoft Mouse.  At present there is no permanent
fix.  As a workaround plug the numeric keypad into the mouse port, and plug the
Microsoft mouse into the keypad.  This will work.  This problem only occurs
during suspend/resume; not at any other time.

Q.  How do I low-level format a Model 25 or 30?
A.  The program for performing a low-level format is contained on the Advanced
Diagnostics diskette provided with the system. However there should be no need
for a low-level format under normal circumstances.  All IBM fixed disk drives
are pre-formatt ed before shipment, so unless the system is experiencing a
problem which requires low-level formatting of the disk it is unnecessary.

Q.  Why can't I get the PS/2 Model 30-286 to recognize expanded memory?  When I
load the DOS 4.0 Expanded memory drivers I get error messages.
A.  The 30-286 does not support expanded memory via the DOS 4.0 drivers.
Either the All Chargecard or AboveDisc software must be used to achieve
expanded memory.  Neither option is currently marketed by IBM, but are
available from their respective vendors (All, Inc. and Above Software (formerly
TeleWare West), respectively).

Q.  What is the service part number for the PS/2 Model CL57 Backup (lithium)
battery?
A.  The FRU is number 35G2282.  Use only this part number.

Q.  What is the service part number for the PS/2 Model L40 Backup (lithium)
battery?
A.  The FRU is number 79F0986.  Use only this part number.

Q.  What is the service part number for the PS/2 Model L40 Standby (Ni-Cad)
battery?
A.  The FRU is number 79F0992.  Use only this part number.

Q.  What is the service part number for the PS/2 Model N51 Backup (lithium)
battery?
A.  The FRU is number 07G1225.  Use only this part number.

Q.  What is the service part number for the PS/2 Model N51 Standby (Ni-Cad)
battery?
A.  The FRU is number 07G1240.  Use only this part number.

Q.  Are there any restrictions to memory installation for the PS/2 Model L40?
A.  Yes. The first 2MB SIMM should be installed in memory socket 1 (the left
one); the first 4 or 8MB SIMM should be installed in socket 2.  If installing
two SIMMs, an 8MB SIMM and a 2 or 4MB SIMM, put the 8MB SIMM in socket 2.  Do
not use two 4MB SIMMs together. The total memory recognized will be incorrect.

Q.  Can I use other brands or kinds of SIMMs in the PS/2 Model L40?
A.  The L40 uses special low-power CMOS SIMMs; these SIMMs are "keyed"
differently than "normal" DRAM SIMMs to prevent their inadvertent installation
in the systems requiring DRAM SIMMs, and vice-versa.  There may be other brands
of 80ns CMOS SIMMs that are specifically designed by their vendors to be
compatible with the L40, but these are not supported by IBM.

Q.  The battery icon on an L40 SX very quickly drops from full, to two-thirds,
to one-third full, then remains there for a long time.  Is there something
wrong with the icon or the battery itself?
A.  Just as the fuel gauge in many cars does not register mileage equally for
each quarter-tankful, the battery icon tends to drop fairly quickly to the
one-third level.  If the battery lasts approximately three hours with the
power-saving features enabled (for example, turning off the power to serial,
parallel, and FAX/Modem ports; and setting time-out values for the fixed disk
drive and LCD), then your battery is operating correctly.  If after using the
power-saving features, on a fully-discharged and then re-charged battery, the
charge lasts significantly less than three hours, replace the battery.

Choose the section to which you wish to jump, below:

 Q&As
 PS/2 Model 25/25-286/25SX Q&As               PS/2 Model 55/65 Q&As
 PS/2 Model 30/30-286 Q&As                    PS/2 Model 56/57/M57 Q&As
 PS/2 Model 35/40 Q&As                        PS/2 Model CL57 Q&As
 PS/2 Model L40 Q&As                          PS/2 Model P70/P75 Q&As
 PS/2 Model N45 Q&As                          PS/2 Model 76/77 Q&As
 PS/2 Model N51 Q&As                          PS/2 Model 90 Q&As
 PS/2 Model 53 Q&As                           PS/2 E Q&As

 Non-Micro Channel (ISA) PS/2 Service Q&As    Micro Channel PS/2 Service Q&As
 PS/2 General Video Q&As                      PS/2 General Disk Drive Q&As
 Miscellaneous System Q&As

 To return to the PS/2 Systems Q&As header, double-click here.


ΓòÉΓòÉΓòÉ 7.18. Micro Channel PS/2 Service Q&As ΓòÉΓòÉΓòÉ

Q. When I try to install OS/2 on my new Model 56 (or 57) 486SLC3 system I get
various SYSxxxx and Trap errors.  What's wrong?
A. A small number of 486SLC3-based 9556/9557 systems shipped with a timing
problem on the motherboard that prevents OS/2 from installing correctly.  Some
of the SYS messages that may be displayed include SYS0049, SYS0318, and
SYS3175.  Other SYS and Trap errors are possible.  Systems manufactured after
16Feb94 already contain the fix.  Users with the early motherboards that
experience these errors (only during installation) should contact IBM or an IBM
authorized servicer for a motherboard replacement.

Q.  Are the PS/2 386SLC/486SLC2/486SLC3 processor upgrades user or
servicer-installed?
A.  While it is recommended that the upgrades be installed by an authorized
servicer, the options are customer-installable.

Q.  Does the original processor chip need to be returned to IBM when the PS/2
386SLC/486SLC2/486SLC3 processor upgrades are installed?
A.  No.  All processors (old and new) remain with the system (the original
processor is soldered to the Model 56/57 motherboard).

Q.  Are there any limitations or incompatibilities to watch out for with the
PS/2 386SLC/486SLC2/486SLC3 processor upgrades?
A.  The only known conflict is with the IBM ARTIC Portmaster Adapter/A and
related options.  This adapter and the Option are mutually exclusive.

Q.  When I try to boot from a DOS diskette to install the operating system, the
system goes straight to BASIC.  Yet when I boot to the Reference Diskette, it
works fine.  What's the problem?  I've tried two copies of DOS, so it's not a
bad diskette.
A.  Boot from the Reference Diskette, and look at the drive boot sequence.
Most likely the boot bequence does not include the A: drive (which may have
been intentionally or accidentally excluded).  With the A: drive excluded, only
the Reference Diskette will boot from it. Adding the A: drive to the boot
sequence should correct the problem.

Q.  Can the diskette drives be interchanged between the 90/95 systems and other
SCSI PS/2 models?
A.  Although the PS/2 Models 90/95 use pin-connectors similar to those used in
other SCSI PS/2 models, the drives themselves are different. The newer drives
of the 90/95 may be moved to other SCSI models, but those used in the 65/80
systems, may NOT be put in 90/95s.  To do so would damage the system boards of
the 90/95s, due to the differences in media detection circuitry.

Q.  How do you fix the multiple-format problems on a PS/2 Model 70-Axx or Model
80-Axx (the 25MHz models)?
A.  There is a new DASDDRVR.SYS patch available, on the Model 70/80 Reference
Diskette V1.10 (which was shipped to all dealers in the new Hardware
Maintenance Service Manuals, in April 1990).  This driver corrects the problem
of "invalid parameter" errors when formatting multiple diskettes.

Q.  What is the service part number ( FRU) for the PS/2 Models 50/60/70/P70/80
lithium battery?
A.  The FRU is number 72X8498.  Use only this part number.

Q.  What is the service part number (FRU) for the PS/2 Models
56/57/76/77/85/90/95 lithium battery?
A.  The FRU is number 33F8354.  Use only this part number.

Q.  What is the service part number (FRU) for the PS/2 Model P75 lithium
battery?
A.  The FRU is number 64F9987.  Use only this part number.

Q. What could cause the PS/2 Models 90 and 95 not to be able to boot from the
primary fixed disk drive if they pass diagnostics?
A. If you know you have an operating system installed on the drive, and you can
do a DIR from a bootable DOS diskette, then make sure that the fixed disk drive
on which you have installed the operating system is designated as a bootable
drive when you set up selectable boot.

Choose the section to which you wish to jump, below:

 Q&As
 PS/2 Model 25/25-286/25SX Q&As               PS/2 Model 55/65 Q&As
 PS/2 Model 30/30-286 Q&As                    PS/2 Model 56/57/M57 Q&As
 PS/2 Model 35/40 Q&As                        PS/2 Model CL57 Q&As
 PS/2 Model L40 Q&As                          PS/2 Model P70/P75 Q&As
 PS/2 Model N45 Q&As                          PS/2 Model 76/77 Q&As
 PS/2 Model N51 Q&As                          PS/2 Model 90 Q&As
 PS/2 Model 53 Q&As                           PS/2 E Q&As

 Non-Micro Channel (ISA) PS/2 Service Q&As    Micro Channel PS/2 Service Q&As
 PS/2 General Video Q&As                      PS/2 General Disk Drive Q&As
 Miscellaneous System Q&As

 To return to the PS/2 Systems Q&As header, double-click here.


ΓòÉΓòÉΓòÉ 7.19. Miscellaneous PS/2 System Q&As ΓòÉΓòÉΓòÉ

Q. Is there anywhere I can go for online technical support?
A. Yes.  If you have a CompuServe account, use GO IBMPS2 to access the IBM
support forum there.

Q. Is it safe to use gold-plated memory SIMMs in tin-lead SIMM sockets, or vice
versa?  I've heard conflicting opinions?
A. The industry consensus from memory and motherboard manufacturers is that
mixing gold and tin contacts will cause degalvanization of the gold contacts,
leading to corrosion and data errors over time.  Where there is little
consensus is on how long this will take and how big a problem it is.  Long-term
mixing of gold and tin, therefore, is not a good idea.  Some memory and
motherboard manufacturers, including IBM, do not support the mixing of metals
and any damage caused by this practice may void the warranty of the affected
component.  However it is probably safe to do so for a reasonably short period
of time.  How short is impossible to say, as it depends on the quality of the
components themselves and environmental factors (such as humidity and dust),
but a period of weeks or months is not unreasonable.  (This is not a guarantee
by any means and you are responsible for any problems that may result, but many
people have successfully done this for a year or more without incident.)  Of
course, this assumes that the SIMMs are otherwise acceptable, except for the
type of metal used for the contacts.  (In other words, the motherboard requires
70ns 72-pin Industry Standard gold-plated SIMMs, and you substitute SIMMs that
are identical except for tin-lead contacts.)

Q. Are there any Micro Channel sound cards on the market, now that Creative
Labs no longer sells its MCA SoundBlaster?
A. Yes.  In addition to IBM's Audiovation and WindSurfer cards (now withdrawn,
but perhaps still available on the used product/liquidation market), Piper
Research sells the Sound Piper 16 MCA Sound Adapter.  ChipChat Cawthon sells a
16-bit MCA sound card, and a 32-bit card with wavetable support. Also, with the
addition of the optional PCMCIA cartridge, one of many IBM and non-IBM PCMCIA
sound cards can be used. |

Q. I just upgraded my system to an Intel Pentium, or IBM 486SLC3 processor, and
now some of my DOS programs won't run under OS/2 2.1 (or OS/2 2.1 for Windows)
anymore--and, in fact, hang the system.  What happened?
A. A small number of DOS programs use drivers that attempt to directly access
the processor.  This technique worked with earlier processors but may not with
some newer processors, such as the Pentium and 486SLC3.  While not a hardware
failure or OS/2 bug, the OS/2 developers have nevertheless created a patch that
should allow the programs to run with those processors under OS/2 2.1.  To
request APAR #PJ09814 from the IBM Support Center at 800-992-4777.  (By the
way, all Pentium- and 486SLC3-based IBM PS/2s and ValuePoints that are
preloaded with OS/2 2.1x already have this patch applied.)  A brief list of
those DOS apps known to require this patch (but there might be others as well)
includes:


 Animator Pro                            Microsoft CLOCK01.EXE
 Castle Wolfenstein                      Multimedia Explorer
 Color Tools                             Multiplan
 Flight Simulator                        Paradox
 Leisure Suit Larry                      Qbasic
 Linkway Live!                           Stealth Fighter
 Lumena                                  Storyboard Live!
 Mannequin                               Vines
 Media Master
 Microsoft Diagnostics (MSD)             All debuggers

 Q. What is the PCMCIA Adapter/A (P/N 67G5055)?
 A. It is a half-sized Micro Channel adapter that allows the use of one PCMCIA
 Type III, or two PCMCIA Type 1 or 2 adapters to be used in a "standard" Micro
 Channel system.  It conforms to the PCMCIA Release 2.0 and JEIDA Version 4.1
 specs (and includes the Card and Socket Services 2.0).  The only requirements
 are an empty adapter slot and DOS 5.02, or OS/2 2.1, or later.  And, of
 course, one or more PCMCIA cards to use in the sockets.  It supports
 hot-pluggability for cards that also support this feature.

 Q. So what does the PCMCIA Adapter/A do for me?
 A. It allows your PC to use the same PCMCIA Token-Ring or Ethernet LAN
 adapter, Fax/Modem, 3270/5250 emulation, memory, hard disk drive, and other
 cards that you use in your notebook computers (and IBM PS/2 E series desktop
 systems).  This may enable you to buy fewer of these adapters and share them
 between PCs as needed.

 Q. I have an IBM ARTIC card, which provides multiple serial ports, in my PS/2
 but I can't get OS/2 to recognize the ports.  What's wrong?
 A. The ARTIC product line includes multiport (and bus mastered) adapters with
 various types of serial ports (including RS-232, RS-422, X.25, and others).
 These ports do not natively appear to OS/2 (or any other operating system) as
 "COMx" ports.  Drivers must be written or purchased to allow applications or
 the operating system to use these ports.  One third-party vendor who has
 written OS/2 drivers for the ARTIC card line is Quadron Service Corp.  Their
 qCOM package allows up to four ARTIC cards (in a Micro Channel PC, or 2 cards
 in an ISA computer) with up to 8 serial ports per card to appear to OS/2 as
 COM1 through COM32.  Applications then see the ARTIC ports as standard COM
 ports.  Quadron can be reached at 805-966-6424.  Other similar products may
 also be available from other vendors.

 Q. Is there a good technical publication describing the features and benefits
 of the PS/2 486 systems?
 A. Yes.  You can order the document Personal System/2 Models 95 XP 486, 90 XP
 486, 55 LS and P75 486 Fundamentals, Form Number GG24-3616.  It explains such
 details as Level 2 caching, selectable boot, XGA, and anti-aliased fonts, as
 well as describing some of the new options, including the 2.3GB SCSI tape
 drive and the External SCSI Storage Enclosure.  The cost is minimal.

 Q. Why does the keyboard password program (KP.COM) for DOS sometimes ask for a
 password to use, but not always?
 A. Typing in the command KP at the command prompt will invoke the power-on
 password in effect at the time.  If no power-on password is used, or if a warm
 boot (Ctrl-Alt-Del) has been performed since the last power-on, no password
 will be in memory for the KP program to use.  In this case a popup window will
 appear requesting a password to use.  This password will stay in effect for
 future uses of KP until the next power-off.

 Miscellaneous Service
 Q.  What is the service part number (FRU) for the Tri-Connector wrap plug?
 A.  The FRU is number 72X8546.  It mustbe used for advanced Diagnostic testing
 of serial and parallel ports for most PS/2 models. Either the Tri-Connector
 wrap plug, or older wrap plugs (8529228 and 8529280) may be used on Models 25,
 25-286, 30, and 30-286.

 Q.  If I break a plastic SIMM retaining clip is there any way to get a
 replacement, without exchanging the motherboard?
 A.  Yes; order FRU# 84F6863. It contains a pair of black retaining clips and a
 pair of white ones.  Use whichever pair matches the color of the retaining
 clip you are replacing.

 Q.  What should I do if I lose the keys to a PS/2 cover lock?
 A.  If you still have the tag that was attached to the keys, write to the
 address on the tag, and use the accompanying serial number to order
 replacement keys.

 If you do not have the tag, you must order a new keylock assembly.  The P/N
 will depend on the particular system.  Then follow the directions in the
 appropriate Hardware Maintenance Reference manual under "Product
 Description-Security" to force open the old lock.

 Q.  Can a desktop PS/2 be used in a vertical position?
 A.  Based on the requirements of the various approval agencies to which IBM
 products are certified, IBM does not support the mounting of PS/2 Models
 30/50/53/55/70/90 in any orientation other than horizontal.  IBM's concerns
 are threefold:

   1. Absent a stabilizing brace, the physical stability of the machines will
      not meet UL safety standards.
   2. The machines side cover louvers will not meet various requirements
      designed to restrict the introduction of conductive materials (such as
      paper clips, etc.) into the machine enclosure.
   3. The machine's side cover louvers do not meet bottom enclosure
      requirements designed to prevent the escape of molten materials from a
      machine that has been subject to an internal fire or severs electrical
      short circuit.

 Note:  Vertical mounting does not subject these systems to functional problems
 and therefore will not void the end-user warranty. However, customers who have
 mounted such machines in an orientation other than horizontal should be made
 aware that such use may invalidate UL and/or SCA safety listings.  Reference
 Underwriters Lab 478, sections 5.15-5.19; Canadian Standards Association No.
 Canadian Standards 220, sections 4.2.3.2 and 4.2.7.4-5.

 On the other hand, because the PS/2 Models 35/40/56/57/76/77, and the PS/2 E,
 were designed to be used in either orientation, it is perfectly safe to use
 them vertically as long as there is sufficient air-flow through the system.
 (The Models 40/57/77 include a stand for using the system vertically, which
 provides for the proper air-flow.  The same stand is available optionally for
 Models 35/56/76.  The PS/2 E can be wall-mounted with an optional bracket.)

 Q.  Can a floor-standing PS/2 be used in a horizontal position?
 A.  Based on the requirements of the various approval agencies to which IBM
 products are certified, IBM does not support the mounting of PS/2 Models
 60/65/80/85/95 in any orientation other than vertical.  IBM's concern is the
 same as #2 in the preceding question.  Horizontal mounting of these systems
 does not void the end-user warranty.  But see the note following the question
 above.

 Choose the section to which you wish to jump, below:

 Q&As
 PS/2 Model 25/25-286/25SX Q&As               PS/2 Model 55/65 Q&As
 PS/2 Model 30/30-286 Q&As                    PS/2 Model 56/57/M57 Q&As
 PS/2 Model 35/40 Q&As                        PS/2 Model CL57 Q&As
 PS/2 Model L40 Q&As                          PS/2 Model P70/P75 Q&As
 PS/2 Model N45 Q&As                          PS/2 Model 76/77 Q&As
 PS/2 Model N51 Q&As                          PS/2 Model 90 Q&As
 PS/2 Model 53 Q&As                           PS/2 E Q&As

 Non-Micro Channel (ISA) PS/2 Service Q&As    Micro Channel PS/2 Service Q&As
 PS/2 General Video Q&As                      PS/2 General Disk Drive Q&As
 Miscellaneous System Q&As

 To return to the PS/2 Systems Q&As header, double-click here.


ΓòÉΓòÉΓòÉ 8. PS/2 Technical Tips ΓòÉΓòÉΓòÉ

This section contains helpful tips, how-to documents, and introductory pieces
on PS/2 systems (except servers).

Choose the section to which you wish to jump, below:

 Tips
 An Introduction to SCSI Devices
 Terminating the IBM SCSI-1 Adapters
 Duplexing on a SCSI PS/2
 Current Draw for IBM SCSI Devices
 How PS/2 Selective Boot Assigns Drive Letters
 Understanding PS/2 Model Numbers
 PS/2 System BIOS Information
 PS/2 Model 90 Trap 002 or NMI Errors
 The Whys and Wherefores of DASDDRVR.SYS
 Trap 000E or L2 Cache Errors After Intel 486 DX4 Upgrade

 Or, to return to the PS/2 Technical Information header, double-click here.


ΓòÉΓòÉΓòÉ 8.1. An Introduction to SCSI Devices - Tip ΓòÉΓòÉΓòÉ

SCSI, pronounced "scuzzy," stands for Small Computer System Interface.  SCSI-1
standards are defined by ANSI X3.131.1986.  The newer SCSI-2 specifications are
defined by ANSI X3T9.2/375R revision 10K, 1993.

The SCSI standards define common command sets that are programmed into ROM
(Read-Only Memory) on the adapters and is accessed via system BIOS as normal
hard disk commands.  Besides hard disk and CD ROM drives, there are many other
SCSI devices available, including tape and rewritable optical drives, printers,
scanners, and other devices.

The SCSI architecture allows 8 devices per SCSI bus.  The controller itself is
a device so seven additional physical devices can be attached.  Each physical
device can have 7 logical devices attached to it as well.  In theory, 64
addressable devices can be attached to a single SCSI controller.  In practice,
the total is usually closer to 7.  But the SCSI specifications allow multiple
SCSI adapters to co-reside in a system.

This sounds complex, so let us simplify.  One intelligent SCSI adapter is
installed into a system.  To this adapter we can attach a SCSI device such as a
hard disk, printer or other device.  It occupies a physical address as defined
by switches or jumpers on the device.  On IBM and Future Domain SCSI adapters a
device can be addressed as ID "0", having the lowest priority, or as device
"6", having the highest priority or anywhere in between, with ID 7 reserved for
the adapter itself.  (Adaptec and other SCSI adapters use ID 0 for the
adapter.)  Slow devices usually are set for a low priority and faster devices
are set for higher priorities.  If we were to add an intelligent device, one
that functions as a "sub" controller, this intelligent device, or more
correctly, this controller can have additional devices attached to it.  These
devices would have logical addresses rather than physical addresses.  These
addresses are referred to as PUA's (Physical Unit Addresses) or LUA's, (Logical
unit addresses).

SCSI devices have a data transfer rate measured in Kilobytes per Second (KBps)
for slow devices such as CD-ROM and most tape drives, or Megabytes per second
(MBps) for hard disk drives, between the system and the controller, and a
different data transfer rate between the controller and the device.  For
example, the IBM SCSI Adapter with Cache (and its motherboard equivalent) that
is standard in many PS/2 models has a data transfer rate of 16.6 MBytes/second
between the system and the controller; the transfer rate between the controller
and the device is up to 5MBps (for fast devices like hard drives).  5MBps is a
limitation of the 8-bit SCSI-1 architecture.  SCSI-2 allows for 10MBps (8-bit
Fast, or 16-bit Wide SCSI-2 devices), 20MBps (16-bit Fast/Wide, or 32-bit
Double-Wide SCSI-2 devices), or 40MBps (32-bit Fast/Double-Wide SCSI-2 devices)
data transfers between the controller and SCSI-2 devices designed to operate
with those adapters.  (Different SCSI-2 adapters support different aspects of
SCSI-2; for example FAST SCSI-2 adapters do not support Wide SCSI-2
devices--you would need a Fast/Wide SCSI-2 adapter to support Fast, Wide, and
Fast/Wide devices.)  SCSI-2 will also support SCSI-1 devices, although at the
slower SCSI-1 speeds, on the same controller with SCSI-2 devices. Most SCSI
adapters support both internally and externally-attached SCSI devices
concurrently.  There are even newer "dual-channel" SCSI adapters that support
up to 7 internal and 7 external SCSI devices at once, as iff attached to two
separate adapters.

Various attachment cables and expansion units are also available.  An external
"option to option" cable is available for device to device attachment.  It uses
the standard 50 pin SCSI connector.  A "card to option" cable is also available
to convert the 60-pin connector used on IBM Micro Channel adapters to the 50
pin SCSI standard connector on the first external device.  The large 50 pin
connector is too big to mount on a Micro Channel adapter so a more compact
60-pin connector was used.  ISA adapters use the standard 50-pin connector.

If there isn't sufficient expansion capacity within the computer, external SCSI
expansion cabinets may be added, using a Card-to-Option cable.  For example, an
IBM 3510 cabinet provides one half-height bay and a 32-watt power supply.  The
3511 (which is essentially a PS/2 Model 95 without the motherboard) offers 8
drive bays, both 3.5" and 5.25" and a 400-watt power supply.  IBM 3514 disk
array subsystem provides additional function, using RAID 5 and other
fault-tolerance features, appearing to the operating system as one large disk
drive.

To return to the PS/2 Hardware Tips header, double-click here.


ΓòÉΓòÉΓòÉ 8.2. Terminating the IBM SCSI-1 Adapters - Tip ΓòÉΓòÉΓòÉ

Just as ST-506 and ESDI adapters need a terminating resistor (T-RES) on the
last drive, so the IBM SCSI-1 adapters must be told where to find the "end of
the line."

16-Bit SCSI Adapter
The 16-bit PS/2 SCSI Adapter includes a T-RES terminator chip on the adapter.
This chip must remain in the following instances:

1) If no physical devices (also called PUNs, for Physical Unit Numbers) are
connected to the adapter, because it is not currently being used.

2) If the PUNs are all internally attached, or all externally attached.

The T-RES chip must be removed if internal and external PUNs are attached.  In
this case inline terminators (which come with the option cables) are used
between the last internal and external PUNs and the cables connecting them to
the next-to-last PUNs (or the adapter, if the PUN is the only internal or
external device on the chain).

For example, to connect two internal and three external PUNs, the internal
devices would be daisy-chained from the internal 50-pin edge-connector, while
the external devices would daisy-chain from the 60-pin D-shell connector on the
back of the card, as follows.  (Note the terminators.)

Internal                                     External
            Γöî<ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÉ
            Γöé            Γöé
           1      ΓöîΓöÇΓöÇΓöÇ\\\\\ΓöÇΓöÇΓöÇΓöÉ
            Γöé      Γöé Adapter * DΓöÇΓöÇΓöÇ2ΓöÇΓöÇΓöÇ>ΓöÉ
ΓöîΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÉ  Γöî<Γöÿ      ΓööΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÿ        Γöé    ΓöîΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÉ
Γöé PUN  ΓöéΓöÇΓöÇΓöñ                             ΓööΓöÇΓöÇΓöÇ>Γöé PUN  Γöé
ΓööΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÿ  Γöö>ΓöÉ                           Γöî<ΓöÇΓöÇΓöÇΓööΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÿ
            Γöé                           Γöé
           1                          3
ΓöîΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÉ    Γöé                           Γöé    ΓöîΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÉ
Γöé PUN T<ΓöÇΓöÇΓöÇΓöÿ                           ΓööΓöÇΓöÇΓöÇ>Γöé PUN  Γöé
ΓööΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÿ                                Γöî<ΓöÇΓöÇΓöÇΓööΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÿ
                                        Γöé
                                       3
                                        Γöé    ΓöîΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÉ
                                        ΓööΓöÇΓöÇΓöÇ>T PUN  Γöé
                                             ΓööΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÿ

If either the internal devices OR the external devices are all removed the
T-RES chip would be needed on the adapter.  All the terminators needed are
included with the various components; however, should the T-RES chip be removed
(and lost), but be needed at a later date, a replacement may be ordered as a
service part (FRU number 57F2870).

32-bit SCSI Adapter with Cache
The original 32-bit PS/2 SCSI Adapter with Cache is different in the respect
that it does NOT come with an onboard T-RES chip.  There is a separate external
terminator (P/N 6451039; F/C 1039) which must be used if no external devices
are attached.  Later shipments of the PS/2 SCSI Adapter with Cache were
redesigned to be similar to the PS/2 SCSI Adapter in that it too has an onboard
terminator, eliminating the need for an external one.  The new adapter can be
easily identified by the bright orange terminator on the adapter.

To return to the PS/2 Hardware Tips header, double-click here.


ΓòÉΓòÉΓòÉ 8.3. Duplexing Drives on a SCSI PS/2 - Tip ΓòÉΓòÉΓòÉ

If you are setting up a SCSI-equipped PS/2 system for duplex operation, install
a second SCSI controller, and all drives and options that will be in the
system.  One drive on the second controller should be set for SCSI ID 6.  This
will enable the system to boot from this drive in the event of failure.  Be
sure to copy all Option Diskettes to the system partition and then follow the
steps below.

   1. Boot the system to the system partition and configure the system as
      necessary. If anything has to be changed manually, this is the time to do
      it.  It will save much time later.
   2. Insert a blank 1.44MB diskette in drive A:.  (It will become a Reference
      Diskette.)
   3. Back up the system partition to the blank Reference Diskette.
   4. Turn the system off and swap the SCSI cables at the controller end.
      (This will make the new drive the boot drive from the original adapter.)
   5. Boot to the Reference Diskette just made, and restore the system
      partition to the new drive.

 If the drives are the same, the system will not need to be reconfigured.  To
 simplify recovery in the event of failure it is recommended that 1) the drives
 be of the same capacity on both controllers, 2) both controllers have the same
 number of physical drives, and 3) the addresses be set the same on both the
 adapters and the drives.  (Each adapter has, for example, SCSI ID 7 for the
 controller, SCSI ID 6 for the first drive on each controller, SCSI ID 5 for
 the second drive on each controller and so forth.)  This enables the system to
 be brought back up without having to be reconfigured in some cases.

 In the event of drive failure, the cables can be swapped at the controller end
 to get the system back in operation.  In the event of a controller failure,
 the failing controller can be removed. Remember, both drives have system
 partitions on them, but the drive set to SCSI ID 6, and attached to the SCSI
 adapter in the lowest numbered slot is the only one that can load the system
 partition.  If we remove the adapter from slot 1, the system will boot from
 the adapter in slot 2.  The system will need to be reconfigured, but that can
 be done from the existing system partition on the backup drive.

 If any drive or controller is removed, the system will need to be
 reconfigured, but if the system is powered down and the defective component is
 swapped with a good component of the same specification, the system will not
 need to be reconfigured.

 P.S. For OS/2 duplexing/mirroring software, check out IBM's LAN Server 4.0, or
 Integra Technologies' OASAS I 2.0, or EZRAID from Pro Engineering.

 To return to the PS/2 Hardware Tips header, double-click here.


ΓòÉΓòÉΓòÉ 8.4. Current Draw for IBM SCSI Devices ΓòÉΓòÉΓòÉ

SCSI-equipped PS/2 Systems have limitations to the amount of +5V and +12V
current available from the power supplies.  These limits differ from system to
system.  The Tables below list both the current limits by system type, but also
the amount of current drawn by various IBM SCSI devices.  By totaling up the
current draw for all devices used, and planned to be added, you can determine
whether your PS/2 can handle the total power draw.  (While the diskette drives
listed below are not SCSI, they must be included in the total current draw
calculations.)

Note 1:  If the total amount of nominal operating current for either the 5V or
12V line required exceeds the available current available from the power supply
you run the risk of the system shutting down.

Note 2:  SCSI devices installed in external storage cabinets (like the IBM 3510
and 3511), and external self-powered drives (such as the 3440/3445/3450 tape
drives) do not draw power from the system power supply, and therefore need not
be included in the total.  However, The 3511 itself has a power supply as the
PS/2 Model 95, and therefore has limitations as well.

Note 3:  Not all devices listed below can be used in all PS/2 systems.  Refer
to the system and device announcement letters for compatibility information.
the 3511 expansion unit itself, which contains 7 SCSI drive bays, has the same
power limitations as the PS/2 Model 95.

     Total Allowable Current Draw by System Type
ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö¼ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö¼ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÉ
System Type                           Γöé+5V DrawΓöé+12V DrawΓöé
ΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓö╝ΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓö╝ΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓöñ
                                      Γöé        Γöé         Γöé
Expansion Units                       Γöé        Γöé         Γöé
3511-003 Expansion Unit (335W PS)     Γöé  4.6   Γöé   7.5   Γöé
ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöñ
3511-0V0 Expansion Unit (400W PS)     Γöé  8.0   Γöé   7.0   Γöé
ΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓö╝ΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓö╝ΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓöñ
                                      Γöé        Γöé         Γöé
85xx Systems                          Γöé        Γöé         Γöé
8556 (118W PS)                        Γöé  2.71  Γöé   2.8   Γöé
ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöñ
8557 (197W PS)                        Γöé  5.0   Γöé   4.5   Γöé
ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöñ
8565 (250W PS)                        Γöé  3.0   Γöé   5.0   Γöé
ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöñ
8580 (225W/242W PS)                   Γöé  3.0   Γöé   5.0   Γöé
ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöñ
8590 (194W PS)                        Γöé  2.3   Γöé   3.2   Γöé
ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöñ
8595 (329W/335W PS)                   Γöé  4.6   Γöé   7.5   Γöé
ΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓö╝ΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓö╝ΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓöñ
                                      Γöé        Γöé         Γöé
95xx Systems                          Γöé        Γöé         Γöé
9553 (118W PS)                        Γöé  2.71  Γöé   2.8   Γöé
ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöñ
9556 (118W PS)                        Γöé  2.71  Γöé   2.8   Γöé
ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöñ
9557 (197W PS)                        Γöé  5.0   Γöé   4.5   Γöé
ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöñ
9576 (118W PS)                        Γöé  2.71  Γöé   2.8   Γöé
ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöñ
9577 (197W PS)                        Γöé  5.0   Γöé   4.5   Γöé
ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöñ
9585 (288W PS)                        Γöé  6.0   Γöé   6.99  Γöé
ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöñ
9590 (194W PS)                        Γöé  4.0   Γöé   4.7   Γöé
ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöñ
9595 (335W PS)                        Γöé  4.6   Γöé   7.5   Γöé
ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöñ
9595 (400W PS)                        Γöé  8.0   Γöé   7.0   Γöé
ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö┤ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö┤ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÿ


                 Current Draw by Device
ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö¼ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö¼ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÉ
SCSI Device                           Γöé+5V DrawΓöé+12V DrawΓöé
ΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓö╝ΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓö╝ΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓöñ
                                      Γöé        Γöé         Γöé
Diskette Drives                       Γöé        Γöé         Γöé
3.5" Enhanced 2.88MB Diskette Drive   Γöé  0.6   Γöé   N/A   Γöé
ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöñ
5.25" 1.2MB Diskette Drive            Γöé  0.9   Γöé   1.0   Γöé
ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöñ
5.25" Slim High 1.2MB Diskette Drive  Γöé  0.3   Γöé   0.5   Γöé
ΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓö╝ΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓö╝ΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓöñ
                                      Γöé        Γöé         Γöé
Hard Disk Drives                      Γöé        Γöé         Γöé
60MB SCSI Hard Disk Drive             Γöé  0.66  Γöé   1.0   Γöé
ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöñ
80MB SCSI Hard Disk Drive             Γöé  0.5   Γöé   0.8   Γöé
ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöñ
104/208/212MB SCSI Hard Disk Drive    Γöé  0.57  Γöé   0.63  Γöé
ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöñ
120MB SCSI Hard Disk Drive            Γöé  0.66  Γöé   1.0   Γöé
ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöñ
160MB SCSI Hard Disk Drive            Γöé  0.5   Γöé   0.8   Γöé
ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöñ
320MB SCSI Hard Disk Drive            Γöé  0.66  Γöé   1.0   Γöé
ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöñ
400MB SCSI Hard Disk Drive            Γöé  0.66  Γöé   1.0   Γöé
ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöñ
540MB Fast SCSI-2 Hard Disk Drive     Γöé  1.16  Γöé   0.78  Γöé
ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöñ
1GB Fast SCSI-2 Hard Disk Drive (P/N  Γöé        Γöé         Γöé
  32G4198)                            Γöé  1.1   Γöé   0.4   Γöé
ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöñ
1GB SCSI Hard Disk Drive(P/N 6451052) Γöé  1.1   Γöé   0.8   Γöé
ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöñ
2GB SCSI Hard Disk Drive(P/N 32G4336) Γöé  1.1   Γöé   0.8   Γöé
ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöñ
2GB SCSI-2 Fast/Wide Hard Disk Drive  Γöé        Γöé         Γöé
  P/N 32G3796)                        Γöé  1.1   Γöé   0.8   Γöé
ΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓö╝ΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓö╝ΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓöñ
                                      Γöé        Γöé         Γöé
Magneto Optical (MO) Drives           Γöé        Γöé         Γöé
3.5" Enhanced Rewritable Optical DriveΓöé  0.9   Γöé   1.4   Γöé
ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöñ
3.5" Rewritable Optical Drive         Γöé  0.9   Γöé   1.4   Γöé
ΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓö╝ΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓö╝ΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓöñ
                                      Γöé        Γöé         Γöé
CD-ROM Drives                         Γöé        Γöé         Γöé
CD-ROM Drive I                        Γöé  1.0   Γöé   1.8   Γöé
ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöñ
CD-ROM Drive II                       Γöé  1.0   Γöé   1.0   Γöé
ΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓö╝ΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓö╝ΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓòÉΓöñ
                                      Γöé        Γöé         Γöé
Tape Drives                           Γöé        Γöé         Γöé
2GB Half-High SCSI Tape Drive         Γöé  0.45  Γöé   0.17  Γöé
ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö╝ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöñ
2.3GB Full-High SCSI Tape Drive       Γöé  2.0   Γöé   0.4   Γöé
ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö┤ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓö┤ΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÇΓöÿ

To return to the PS/2 Hardware Tips header, double-click here.


ΓòÉΓòÉΓòÉ 8.5. How PS/2 Selective Boot Assigns Drive Letters - Tip ΓòÉΓòÉΓòÉ

The PS/2 Models 56/57/76/77/85/90/95 (and any other IBM systems with selective
boot) will boot from any physical hard drive or floppy drive in the machine
(but not logical drives).  For example, 2 physical hard drives could be a 160MB
SCSI drive defaulting to drive C: and a 320MB drive defaulting to drive D:.
When you use the Reference Diskette to change the boot sequence, you are
indicating what sequence you would like the system to check for bootable
devices.  For example:

            Boot device 1:  1.44MB Diskette Drive (A:)
            Boot device 2:  160MB, SCSI ID = 6    (C:)
            Boot device 3:  320MB, SCSI ID = 5    (D:)

Could be changed to this:

            Boot Device 1:  1.44MB Diskette Drive (A:)
            Boot Device 2:  320MB, SCSI ID = 5    (C:)
            Boot Device 3:  160MB, SCSI ID = 6    (D:)

In the first example the system will try to boot the diskette drive first.  If
it does not find a bootable diskette it will try to boot from the 160MB hard
disk; then the 320MB drive.  The 160MB drive is C: and the 320MB drive is D:.
In the second example, the 320MB drive is C: and the 160MB drive is D:.
Whenever you change the boot sequence, the system warns you that drive letters
will be changed and/or rearranged.

Note:  Older ESDI models can have their boot drives (C:) changed by attaching
the cables in a different order. |

To return to the PS/2 Hardware Tips header, double-click here.


ΓòÉΓòÉΓòÉ 8.6. Understanding PS/2 Model Numbers - Tip ΓòÉΓòÉΓòÉ

There have been so many different PS/2 models, past and present, that it can be
difficult to tell them apart just by the model numbers.  The following is an
attempt to explain the meaning behind these numbers.  Despite appearances, the
numbers and letters do have specific meanings (although in a few cases their
use is not totally consistent).

In an attempt to simplify the process of understanding model differences,
recently IBM started using a new system for designating models.  So, below you
will find two sets of explanations, one for the older scheme, and the other for
the new method:

Note:  @ = A or B; * = Any number or letter.

Old Method: (PS/2 Models 25, 25-286, 30, 30-286, 50, 55, 60, 65, 70, P70, P75,
80)

 Models    Meaning
 0**       Space-saving keyboard (25-286 only)
 12*       120MB Hard Disk drive
 @2*       120MB Hard Disk drive
 16*       160MB Hard Disk drive
 @16       160MB Hard Disk drive
 32*       320MB Hard Disk drive
 40*       400MB Hard Disk drive
 A**       25MHz 386 processor
 A3*       25MHz 386 processor; 320MB Hard Disk drive
 B**       25MHz 486 processor
 C**       Color Display
 E**       10MHz 286 (30-286 only)
 E6*       16MHz 386; 60MB Hard Disk drive (70 only)
 G**       Enhanced Keyboard
 L0*       4MBps Token-Ring LAN adapter (25 only)
 LE*       Ethernet LAN adapter (55 only)
 LT*       16/4 Token-Ring LAN adapter (55 only)
 M**       Monochrome Display
 *2*       20MB Hard Disk drive
 *3*       30MB Hard Disk drive (Except A3*)
 *4*       45MB Hard Disk drive
 *6*       60MB Hard Disk drive
 *8*       80MB Hard Disk drive
 **0       Medialess (no Hard Disk, no diskette drives)
 **1       1 diskette drive
 **1       Monochrome Display (25 only)
 **2       2 diskette drives
 **4       Color Display (25, 25-286 only)
 **6       10MHz 286; 1 diskette drive (25-286 only)

 To illustrate:

 Models            Meaning
 Model 8525-G04    Enhanced keyboard and a built-in color display.
 Model 8525-036    Space-saving keyboard, a 30MB hard disk drive, and a 10MHz
                   286 processor.
 Model 8570-A21    25MHz 386 processor, a 120MB hard disk drive, and one
                   diskette drive.

 New Method: (PS/2 Models 35, 40, L40, N45, N51, 53, 56, 57, CL57, M57, 76, 77,
 M77, 85, 90, 95, ThinkPad 300)

 Models    Meaning
 0**       Standard processor complex design
 1**       Advanced processor complex design; or Ethernet included; or
           Multimedia system
 2**       16/4 Token-Ring LAN Adapter included; or Multimedia system
 3**       Server Disk Array configuration
 4**       Custom configuration for Special Bid purchase or network
           configuration
 6**       Multimedia system with DOS/Windows preloaded
 7**       Multimedia system with OS/2 preloaded
 A**       IDE drives standard
 B**       SCSI-2 drives standard
 D**       Choice of DOS 5.02, DOS 6.1, OS/2 2.00.1, or OS/2 2.1 included
 K**       OS/2 2.1 Preloaded
 Q**       DOS 5.02 and Windows 3.1 Preloaded
 *2*       16MHz 386SLC
 *3*       16MHz 386SX
 *4*       20MHz 386SX
 *5*       20MHz 386SLC
 *6*       25MHz 386SL
 *B*       50/25MHz 486SLC2
 *E*       75/25MHz 486SLC3
 *G*       20MHz 486SX
 *H*       25MHz 486SX
 *J*       25MHz 486DX
 *K*       33MHz 486DX
 *L*       50/25MHz 486DX2
 *M*       50MHz 486DX
 *N*       66/33MHz 486DX2
 *P*       60MHz Pentium
 *Q*       66MHz Pentium
 *T*       100/33MHz 486DX4
 *U*       33MHz 486SX (9576/9577); or 66/33MHz 486DX2 (9585)
 *X*       33MHz 486SX (9585)
 **0       No Hard Disk, one diskette drive
 **1       8512 Color Display included
 **2       8511 Color Display included
 **3       40MB Hard Disk drive
 **4       60MB Hard Disk drive
 **5       80MB Hard Disk drive
 **6       104MB Hard Disk drive
 **7       120MB Hard Disk drive
 **9       160MB Hard Disk drive
 **A       208MB/212MB Hard Disk drive
 **B       250MB Hard Disk drive
 **D       320MB Hard Disk drive
 **F       400MB Hard Disk drive
 **G       540MB Hard Disk drive
 **T       1GB Hard Disk drive
 **X       Medialess (no hard disk, no diskette drives)

 For example:

 Models            Meaning
 Model 8535-24X    Token-Ring adapter, 20MHz 386SX processor, and no drives.
 Model 8540-040    20MHz 386SX processor, a diskette drive, but no hard disk
                   drive.
 Model 8590-0J9    25MHz 486 processor, and a 160MB hard disk drive.
 Model 9557-KBA    50/25MHz 486SLC2 processor, and a 212MB hard disk drive
                   preloaded with OS/2 2.1.

 To return to the PS/2 Hardware Tips header, double-click here.


ΓòÉΓòÉΓòÉ 8.7. PS/2 System BIOS Information - Tip ΓòÉΓòÉΓòÉ

The following table lists the BIOS Model, Submodel, and Revision Level bytes
for PS/2 systems (except PS/2 Servers 85/95/195/295).

(Note:  While the text below may appear "ragged" onscreen, it is formatted to
print in a more even-looking manner.)

 PS/2 85xx System Type                             Model/Sub/Rev  BIOS Date
 Model 25/25LS.....(8MHz 8086)                     FA / 01 / 00 - 06/26/87
                                                   FA / 01 / 01 - 11/02/88
 Model 25...........(10MHz 286)                    FC / 08 / 00 - ??/??/??
 Model 25 SX........(16MHz 386SX)                  F8 / 34 / 00 - ??/??/??
 Model 30-0xx.......(8MHz 8086)                    FA / 00 / 00 - 09/02/86
                                                   FA / 00 / 04 - 01/31/89
 Model 30-Exx.......(10MHz 286)                    FC / 09 / 00 - 08/25/88
                                                   FC / 09 / 01 - 11/30/88
                                                   FC / 09 / 02 - 05/30/89
                                                   FC / 09 / 03 - ??/??/??
 Model 30 SX........(16MHz 386SX)                  F8 / 33 / 00 - ??/??/??
 Model N33 SX.......(16MHz 386SX)                  F8 / 87 / 00 - ??/??/??
 Model 35/35LS (all)(20MHz 386SX)                  F8 / 19 / 05 - 03/15/91
                                                   F8 / 19 / 06 - 04/04/91
                                                   F8 / 19 / 07 - 06/04/91
 Model 40 (all).....(20MHz 386SX)                  F8 / 19 / 05 - 03/15/91
                                                   F8 / 19 / 06 - 04/04/91
                                                   F8 / 19 / 07 - 06/04/91
 Model L40 (all)....(20MHz 386SX)                  F8 / 23 / 01 - ??/??/??
 Model 50-021.......(10MHz 286)                    FC / 04 / 00 - 02/13/87
                                                   FC / 04 / 01 - ??/??/??
                                                   FC / 04 / 02 - 11/02/89
 Model 50Z-031/061..(10MHz 286)                    FC / 04 / 03 - 01/28/88
                                                   FC / 04 / 04 - 05/12/88
 Model N51-03x......(16MHz 386SX)                  F8 / 99 / 04 - 03/07/92
 Model N51-02x......(16MHz 386SLC)                 F8 / 5D / 01 - 04/15/92
 Model 55 (all).....(16MHz 386SX)                  F8 / 0C / 00 - 11/02/88
                                                   F8 / 0C / 01 - ??/??/??
 Model 55LS (all)...(16MHz 386SX)                  F8 / 1E / 00 - 02/08/90
 Model 56-04x.......(20MHz 386SX)                  F8 / 26 / 01 - ??/??/91
 Model 56-14X/24X...(20MHz 386SX)                  F8 / 26 / ?? - ??/??/91
 Model 56-15X/25X...(20MHz 386SLC)                 F8 / 25 / 09 - 12/07/91
 Model 56-x5x.......(20MHz 386SLC)                 F8 / 25 / 06 - ??/??/91
                                                   F8 / 25 / 07 - ??/??/91
 Model 56-x4x/x5x...(40/20MHz 486SLC2)             F8 / -- / -- - 07/20/92 (91)
 Model 57-04x.......(20MHz 386SX)                  F8 / 26 / 01 - 05/10/91
 Model 57-x5x.......(20MHz 386SLC)                 F8 / 25 / 06 - 08/21/91
                                                   F8 / 25 / 07 - ??/??/91
 Model 57-x4x/x5x...(40/20MHz 486SLC2)             F8 / -- / -- - 07/20/92 (91)
 Model CL57 (8554)..(20MHz 386SX)                  F8 / 56 / 05 - 02/28/92
 Model M57-259......(20MHz 386SLC)                 F8 / 25 / 06 - 08/21/91
 Model 60 (all).....(10MHz 286)                    FC / 05 / 00 - 02/13/87
 Model 65 (all).....(16MHz 386SX)                  F8 / 1C / 00 - 02/08/90
 Model 70-Exx.......(16MHz 386DX)                  F8 / 09 / 02 - 04/11/88
                                                   F8 / 09 / 03 - 03/17/89
                                                   F8 / 09 / 04 - 12/15/89
 Model 70-0xx/1xx...(20MHz 386DX)                  F8 / 04 / 02 - 04/11/88
                                                   F8 / 04 / 03 - 03/17/89
                                                   F8 / 04 / 04 - 12/15/89
 Model 70-Axx.......(25MHz 386DX)                  F8 / 0D / 00 - 06/08/88
                                                   F8 / 0D / 01 - 02/20/89
 Model 70-Bxx.......(25MHz 486DX)                  F8 / 1B / 00 - 12/01/89
 Model P70-031(8573)(16MHz 386DX)                  F8 / 50 / 00 - ??/??/??
 Model P70-061/121..(20MHz 386DX)                  F8 / 0B / 00 - 01/18/89
                                                   F8 / 0B / 02 - ??/??/??
 Model P75-161/401..(33MHz 486DX)                  F8 / 52 / 00 - ??/??/??
 Model 80-0xx.......(16MHz 386DX)                  F8 / 00 / 00 - 03/30/87
                                                   F8 / 00 / 01 - ??/??/??
                                                   F8 / 00 / 02 - 06/19/89
 Model 80-1xx/3xx...(20MHz 386DX)                  F8 / 01 / 00 - 10/07/87
 Model 80-Axx.......(25MHz 386DX)                  F8 / 80 / 01 - 11/21/89
                                                   F8 / 80 / 02 - 02/15/90
 Model 90-0Gx.......(20MHz 486SX) Type 1           F8 / 2F / 00 - 04/24/91
 Model 90-0Gx.......(20MHz 487SX) Type 1           F8 / 2D / 00 - 04/24/91 (92)
 Model 90-0Hx.......(25MHz 486SX) Type 2           F8 / 57 / 00 - ??/??/91
 Model 90-0Hx.......(25MHz 487SX) Type 2           F8 / 59 / 00 - ??/??/91 (92)
 Model 90-0Jx.......(25MHz 486DX) Type 1           F8 / 11 / 00 - 10/01/90
                  Type 1                           F8 / 11 / 01 - ??/??/??
                  Type 1                           F8 / 11 / 02 - ??/??/??
 Model 90-0Kx.......(33MHz 486DX) Type 1           F8 / 13 / 00 - 10/01/90
                  Type 1                           F8 / 13 / 01 - ??/??/91
                  Type 1                           F8 / 13 / 02 - 06/21/91
 Model 90-xLx.......(50/25MHz 486DX2) Type 2       F8 / 3F / 03 - 04/20/93
 Model 90...........(50MHz 486DX) Type 1           F8 / 2B / 00 - ??/??/?? (93)
 Model 90...........(50MHz 486DX) Type 2           F8 / 5B / 00 - ??/??/?? (93)
 Model 90...........(50MHz 486DX) Type 3           F8 / 29 / 00 - ??/??/??

 PS/2 95xx System Type                             Model/Sub/Rev  BIOS Date
 Model 53-xBx.......(50/25MHz 486SLC2)             F8 / B9 / 00 - ??/??/??
 Model 56-xBx.......(50/25MHz 486SLC2)             F8 / 38 / 00 - 08/05/92
 Model 57-xBx.......(50/25MHz 486SLC2)             F8 / 38 / 00 - 08/05/92
 Model 56-xEx.......(75/25MHz 486SLC3)             F8 / 38 / 04 - 07/29/93
 Model 57-xEx.......(75/25MHz 486SLC3)             F8 / 38 / 04 - 07/29/93
 Model 76 (all).....(33MHz 486SX)                  F8 / 41 / 03 - 08/03/92
 Model 77-0Nx.......(66/33MHz 486DX2)              F8 / 41 / 05 - 10/28/92
 Model 77-0Ux.......(33MHz 486SX)                  F8 / 41 / 03 - 08/03/92
 Model 77-xNx.......(66/33MHz 486DX2)              F8 / 41 / 05 - 10/28/92
 Model 77-xUx.......(33MHz 486SX)                  F8 / 41 / 03 - 08/03/92
                                                   F8 / 48 / 02 - 02/14/93
 Model 90-xLx.......(50/25MHz 486DX2) Type 2       F8 / 3F / 03 - 04/20/93
 Model 90...........(66/33MHz 486DX2) Type 1       F8 / 37 / 00 - ??/??/92 (92)

 PS/2 E System Type                                Model/Sub/Rev  BIOS Date
 9533 (all).........(50/25MHz 486SLC2)             F8 / 24 / 02 - 03/31/93

 To return to the PS/2 Hardware Tips header, double-click here.


ΓòÉΓòÉΓòÉ 8.8. PS/2 Model 90 Trap 002 or NMI Errors - Tip ΓòÉΓòÉΓòÉ

OS/2 Trap 002 errors, or NMI errors when using a UNIX based operation system
can be caused by unbalanced memory loading on the memory riser cards when four
or more SIMMs are installed.  The term "loading" refers to the amount of
current load the SIMM places on the riser card and thus on the system board.
The load is based on the actual number of chips, not their capacity.  A 2MB
SIMM with chips on both sides is more of a load than a 4MB SIMM with all the
chips on one side.

To determine the loading of a given SIMM,  count the chips on both sides of the
SIMM.  If the number is 12 or less, the loading is low.  If the number of chips
is greater than 12, the loading is high. The goal is to balance the loads as
much as possible between the two riser cards keeping in mind that except for
the 0Hx/0Lx models, the SIMMs must be installed in matched pairs. The Service
Support Guide, Volume two, has more details on this subject on pages 10-4 and
10-5.

To return to the PS/2 Hardware Tips header, double-click here.


ΓòÉΓòÉΓòÉ 8.9. The Whys and Wherefores of DASDDRVR.SYS - Tip ΓòÉΓòÉΓòÉ

There is a lot of confusion over what DASDDRVR.SYS is, what it is used for,
which PS/2 models require it, and what exactly it fixes.  The following should
dispel the mystery surrounding DASDDRVR.SYS.

What is it?
DASDDRVR.SYS (Direct Access Storage Device Driver) is a set of software patches
that fix various BIOS bugs common to several PS/2 models.  A common
misconception is that DASDDRVR.SYS is a set of DOS patches; and additionally
that it is not needed with DOS 4.0x or later; only V3.3.  Both statements are
incorrect.

IBM could have chosen to replace thousands of BIOS chips on PS/2 motherboards,
yet went with the software approach.  Why? A program installs DASDDRVR.SYS on a
PS/2 hard disk drive, and adds a statement to CONFIG.SYS.  Then when the system
is booted, the BIOS patches overwrite the BIOS code in memory (that was copied
from the BIOS ROM chips).  Not only does this give IBM and the user the
flexibility of later replacing DASDDRVR.SYS with a newer version containing
additional BIOS patches, if necessary; but it also eliminates the down time and
inconvenience that would result from taking the system to an authorized
servicer to have the BIOS ROM replaced.

Who needs it?
Originally, a few BIOS bugs were found affecting several PS/2 models.  Two
different versions of DASDDRVR.SYS were written, one for Micro Channel systems,
and one for non-Micro Channel PS/2s.  As time passed, it was discovered that
several more PS/2s were affected by these or newer bugs.  Eventually the two
versions of DASDDRVR.SYS were merged into one, simplifying the effort of
determining what to install on which systems.

So, to make a long story short, DOS 3.3 and later users who encounter the
specific problems corrected by DASDDRVR.SYS (see below), on the particular PS/2
models listed, should install DASDDRVR.SYS.  The install program will determine
which model you are installing it on, and only install those fixes that apply
to that system.  (Those PS/2 models or submodels not on the list, do not need
DASDDRVR.SYS, and will not benefit by installing it.)

Why isn't DASDDRVR.SYS required on OS/2 or AIX-based PS/2s?  Because these
operating systems routinely replace the hardware BIOS code in memory with
customized software versions, anyway.  So they already contain the fixes
inherent in DASDDRVR.SYS.

What problems does it fix?
There are currently twelve different bugs fixed.  The list below describes the
fixes, and which systems are affected:

 Problems                                              Systems Affected
 1) Failures occur when reading some 720K
   program diskettes.                                  8530-E01/E21; 8550-021;
                                                       8560-041/071;
                                                       8580-041/071.
 2) Intermittent "Not Ready" or "General failure"
   error messages when accessing diskettes.            8550-021; 8560-041/071;
                                                       8580-041/071.
 3) 3.5" diskette format failures when attempting
   to format multiple diskettes consecutively.         8550-021; 8560-041/071;
                                                       8580-041/071.
 4) Combined 301 and 8502 error messages at
   power on, or after power interruption.              8550-021; 8560-041/071.
 5) System clock loses time (8550), or combined
   162 and 163 errors during system POST
   (8560).                                             8550-021; 8560-041/071.
 6) Unable to install Power-on Password program
   with DASDDRVR.SYS installed.                        8550-021; 8560-041/071;
                                                       8580-041/071.
 7) Device attached to COM2, COM3, or COM4
   not detected.                                       8530-E01/E21.
 8) Devices that use interrupt request level 2
   (IRQ2) fail.                                        8530-E01/E21.
 9) 3.5" diskette format failures when attempting
   to format more than one diskette.                   8570-Axx (all); 8580-Axx
                                                       (all).
 10) System performance degradation from
   processor-intensive devices.                        8550-021/031/061;
                                                       8555-031/061;
                                                       8560-041/071.
 11) Error in microcode routine that enhances
   long-term reliability of 60/120MB disk drives.      8550-061; 8555-061;
                                                       8570-061/121/A61/A21;
                                                       8573-061/121.
 12) Time and date errors occur when resetting
   time or date.  Intermittent date changes can
   occur when system is restarted by pressing
   Ctrl-Alt-Del.                                       8530 (all).

 How do I get and install it?
 Most versions of the various Micro Channel PS/2 Reference Diskettes contain
 some version of DASDDRVR.SYS.  (The non-Micro Channel PS/2 Model 30 286
 provides DASDDRVR.SYS on the Setup Diskette, instead.)  But because there have
 been several versions of DASDDRVR.SYS released along the way, with different
 numbers of fixes, it is important to get the latest possible version of the
 appropriate Reference Diskette.  Depending on the version of the diskette,
 there may be additional fixes in a later version.

 If you have access to the latest Reference Diskette, use it.  If not, you may
 call 800-IBM-7282, and request the PS/2 System Update Diskette (P/N 04G3288.
 This diskette contains a version of DASDDRVR.SYS, but it is possible that by
 the time you read this and order it, a newer version may have been released on
 a new Reference Diskette.  Still, a fairly recent version is better than an
 older one you may have on the Reference Diskette that came with the system.
 If DASDDRVR.SYS is already installed on a system, but you don't know whether
 it is the latest, just look at the file size.  The current version (as of July
 1991) is 3,068 bytes).

 Installation is a snap.  Simply insert the diskette in the A: drive, and type:
 A:INSTALL from the C> prompt.  That's all there is to it!  The install program
 copies the DASDDRVR.SYS file to the hard disk drive, and updates CONFIG.SYS to
 use it.  After rebooting the system you are done.

 One final note:  This driver may be ordered and installed by anyone.  It
 includes instructions, and does not require dealer intervention.

 To return to the PS/2 Hardware Tips header, double-click here.


ΓòÉΓòÉΓòÉ 8.10. Trap 000E or L2 Cache Errors After Intel 486DX4 Upgrade - Tip ΓòÉΓòÉΓòÉ

Trap 000E and L2 Cache Errors After IntelDX4 Upgrade - RETAIN Tip

SYMPTOM:
IBM PS/2 9576i/9576s, and 9577i/9577s models that have been upgraded with an
IntelDX4 486 100Mhz Processor Upgrade or an IntelDX4 OverDrive Processor
Upgrade (DX4ODPR100) may exhibit the following error symptoms:
 - Intermittent Trap 000E Errors under OS/2
 - L2 Cache diagnostics errors
 - Message states "L2 Cache installed not supported."

PROBLEM ISOLATION AIDS:
A standard IntelDX4 486 Processor Upgrade (not OverDrive) requires a separate
voltage regulator to step down 5v DC to 3.3v DC.  The Intel OverDrive Processor
has a built-in voltage regulator.

FIX:
If the system is experiencing intermittent Trap 000E errors, remove the
IntelDX4 Upgrade or OverDrive Processor and re-install the original processor.
If errors persist, this Tip does not apply.  If the errors do not recur,
replace the IntelDX4 Processor Upgrade or IntelDX4 OverDrive Processor.

IBM does not market the IntelDX4 OverDrive processor upgrades.  Contact the
point of purchase or Intel for additional assistance.

Replacements for the IBM upgrade option (Standard IntelDX4 Processor Upgrade
requiring a voltage regulator) are available through normal IBM parts
distribution processes using the FRU (service part) numbers published in the
appropriate Hardware Maintenance Manual.

FIX:
For systems experiencing L2 Cache failures during diagnostics, obtain the
current level PS/2 9576/77 Reference Diskette.  Early versions of the Reference
Diskette did not contain the code necessary to identify the ID of the IntelDX4
Processor Upgrade or the IntelDX4 OverDrive Processor upgrade.

The updated 9576/77 Reference Diskette titled "7677DIAG.DSK" may be downloaded
from the IBM PC Company Bulletin Board service at 919-517-0001.  The file is
located in section 27 under "Reference and Adapter Diskettes."

The PS/2 9576/77 Reference Diskette may also be downloaded via the Internet
from the IBM Personal Computer File Library by searching in
http://www.pc.ibm.com/files.html.

To return to the PS/2 Hardware Tips header, double-click here.


ΓòÉΓòÉΓòÉ 9. PS/2 85xx ISA Systems: Features and Technical Specs ΓòÉΓòÉΓòÉ

The PS/2 85xx ISA Systems: Features and Technical Specifications lists the
standard and optional features, as well as technical product specifications, of
all Industry Standard Architecture-based PS/2 systems using the 85xx
designation (e.g., 8530).  This reference may also be useful for comparing PS/2
features to that of OEM systems.  There are nearly 30 systems described in this
area.

Choose the section to which you wish to jump, below:

 Industry Standard Architecture Desktop PS/2s (85xx)
 PS/2 Model 25 8086 Systems
 PS/2 Model 25 286 Systems
 PS/2 Model 30 8086 Systems
 PS/2 Model 30 286 Systems
 PS/2 Model 35 386SX Systems
 PS/2 Model 40 386SX Systems
 PS/2 Model L40 386SX Systems
 PS/2 Model N45 386SX Systems

 Jump directly to the PS/2 Technical Information header.


ΓòÉΓòÉΓòÉ 9.1. PS/2 Model 25 8086 Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
8086-based Model 25 systems.

Choose the section to which you wish to jump, below:

 8MHz Systems
 PS/2 Model 25-xx1/xx4
 PS/2 Model 25(LS)-L01/L04

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 9.1.1. PS/2 Model 25-001/004/G01/G04 Tech Specs ΓòÉΓòÉΓòÉ

Because the four types of Model 25 (non-LS models--the LS models are featured
elsewhere) are identical except for a choice of monochrome vs. color display,
and enhanced vs. space-saving keyboard, all four types will be represented by
the one column below. Unless otherwise indicated, all product information
applies equally to all four types.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Jump directly to the PS/2 Model 25 Systems header.


ΓòÉΓòÉΓòÉ 9.1.1.1. PS/2 Model 25-001/004/G01/G04: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 25-001/004/G01/G04 header.

 DESCRIPTION                                       8525-001/004/G01/G04
 ARCHITECTURE
 Bus Type                                          PC
 Microprocessor                                    8086
 Clock Speed                                       8 MHz
 Instruction Set                                   16 bit
 Addressing                                        16 bit
 I/O Channel Width                                 8 bit
 Interrupt Levels                                  8
  Type (ISA)                                       Edge-triggered,
                                                   Non-shareable
 Maximum Bus Data Transfer Rate
  ISA Burst Transfer Mode                          8 Mbytes/second
 Bus Data/Address Parity Checking
  ISA Bus                                          No
 DMA Channels                                      3
  DMA Burst Mode Supported                         No
 Bus Masters Supported                             No
 Upgradeable Processor Complex                     No

 MEMORY
 Standard (Motherboard)                            512K
 Maximum (Motherboard)                             640K
 Maximum (System)                                  640K (a)
 Memory Chip Speed (ns)                            150
 Memory Chip Type                                  DRAM
 Memory Cache Controller                           No
 Wait States: Motherboard                          0
        Adapter                                    N/A
 Memory Used: Motherboard                          64K Socketed


ΓòÉΓòÉΓòÉ 9.1.1.2. PS/2 Model 25-001/004/G01/G04: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 25-001/004/G01/G04 header.

 DESCRIPTION                                       8525-001/004/G01/G04
 STANDARD FEATURES
 ROM Size                                          64K
 ROM Shadowing                                     No
 Opt. Math Coprocessor                             8087
  Coprocessor Speed                                8MHz
 Standard Graphics                                 MCGA
  Built-in Display                                 Yes
   Monochrome                                      001/G01
   Color                                           004/G04
   Dot Pitch (mm)                                  .38
 Maximum Graphics                                  VGA (c)(q)
 Audio Earphone Jack                               Yes
 RS232C Serial Ports                               1
  UART Chip Used                                   NS8250
  Maximum Speed (bits/second)                      9,600
  FIFO Mode Enabled                                N/A
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          2
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       No
 Diskette Drive Support                            Yes (d)
 Hard Disk Drive Support                           Optional (e)
 CMOS Clock                                        No
  Battery Life (years)                             N/A


ΓòÉΓòÉΓòÉ 9.1.1.3. PS/2 Model 25-001/004/G01/G04: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 25-001/004/G01/G04 header.

 DESCRIPTION                                       8525-001/004/G01/G04
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     2
  # of 3.5"/5.25" Bays                             2/0
  # of 3.5"/5.25" Bays Available                   1/0
 Diskette Drives Standard                          1x720K
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)(h)
  5.25" 1.2MB                                      No
  3.5" 720K                                        Optional (h)
  3.5" 1.44MB                                      No
  3.5" 2.88MB                                      No
  Internal Drives Supported                        2
  External Drives Supported                        1
  Maximum # Diskette Drives                        2 (h)
   Diskette Caching                                No
 Hard Disk Drives Standard                         0
  Maximum # of Hard Disk Drives                    1
  Optional HD Drive Sizes Available                20MB (h)(l)
  Drive Type                                       26
  Encoding Method                                  MFM
  Drive Form Factor                                3.5"
  Maximum Internal HD Drive Capacity               20MB (h)(l)
  Average Access Rate (ms)                         38/80 (h)(l)
  Controller/Connector Type                        ST-506/Direct Bus Attach
                                                   (DBA) (h)(l)
  Data Transfer Rate (Mb/second)                   5.0 (h)(l)
  Rotational Speed (RPMs)                          3600
  Interleave Factor                                3:1 (h)(l)
  Disk Caching S/W Included                        No
  Auto Park                                        No
 Built-in SCSI Support                             No
 Supports TMC-850IBM Internal SCSI Adapter         Yes (4g)
  Number of Int. SCSI devices supported            1 (# of open bays)
 Supports TMC-850IBM External SCSI Adapter         Yes (using 3510 External
                                                   SCSI Storage Enclosure)
 Supports 16-Bit Fast SCSI Adapter                 Yes (using 3510 External
                                                   SCSI Storage Enclosure)

 TAPE STORAGE
 Internal Tape Drive Support                       No
 External Tape Drive Support                       6157-001


ΓòÉΓòÉΓòÉ 9.1.1.4. PS/2 Model 25-001/004/G01/G04: Expansion/Operating Systems ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 25-001/004/G01/G04 header.

 DESCRIPTION                                       8525-001/004/G01/G04
 EXPANSION SLOTS
 Total Adapter Slots                               2
  # of Long/Short Slots                            1/1
  # of 8/16/32-bit Slots                           2/0/0
  # of Slots with Video Extension                  0
 Available Slots                                   2
  Maximum RAM with Available Slots                 640K
  # of Slots Required for Maximum                  0
 # of Slots Avail after Maximum                    2

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        Yes
 IBM OS/2                                          No
 IBM AIX PS/2                                      No


ΓòÉΓòÉΓòÉ 9.1.1.5. PS/2 Model 25-001/004/G01/G04: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 25-001/004/G01/G04 header.

 DESCRIPTION                                       8525-001/004/G01/G04
 KEYBOARD
 101-Key Enhanced Keyboard                         G01/G04
 84-Key Space-Saving Keyboard                      001/004
 LED Indicators on Keyboard                        G01/G04
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       No
 Keyboard Cord Length (ft)
  Space-Saving Keyboard                            5.0
  Enhanced Keyboard                                6.0

 SECURITY
 C2 Security Enabled                               No
 Keylock-Locks Cover                               No/Yes (n)
     Locks Keyboard                                No/Yes (n)
 Keyboard Password                                 No
 Power-on Password                                 No
  Network Server Mode                              No


ΓòÉΓòÉΓòÉ 9.1.1.6. PS/2 Model 25-001/004/G01/G04: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 25-001/004/G01/G04 header.

 DESCRIPTION                                       8525-001/004/G01/G04
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
 Dimensions: Height                                15.0" (o)
       Width (Footprint)                           9.5"
       Width (Display)                             12.6" (o)
       Depth                                       14.7" (o)
 Weight (lbs)                                      31.0 (001/G01) (o)
                                                   36.0 (004/G04) (o)
 Carrying Case                                     Optional

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              90 (001/G01)
                                                   115 (004/G04)
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Manual
 Amperage at 90-137 VAC                            2.8 (o)
       80-259 VAC                                  1.7 (o)
 Maximum Current Leakage (uA)                      <500
 Operating Range: Temperature                      60-90┬░ F
          Relative Humidity                        8-80%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  683 (o)
 Noise (Avg dB, Operating, 1m)                     44 (o)

 MISCELLANEOUS
 FCC Classification                                B
 Warranty Period                                   1 Year
  Upgrade Carry-In Warranty to On-Site             $40
 BIOS Model/Submodel/Revision                      FA/01/00
 Date Announced                                    08/04/87
 Date Withdrawn                                    03/23/93


ΓòÉΓòÉΓòÉ 9.1.2. PS/2 Model 25(LS)-L01/L04 Tech Specs ΓòÉΓòÉΓòÉ

Because the two types of Model 25 LS are identical except for a choice of
monochrome vs. color display, both will be represented by the one document, to
follow.  Unless otherwise indicated, all product information applies equally to
both types.

What makes the LS models different from the standard Model 25s is the presence
of a 4 Mb/sec Token Ring Network Adapter in the long slot, and the lack of a
space-saving keyboard option.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Jump directly to the PS/2 Model 25 Systems header.


ΓòÉΓòÉΓòÉ 9.1.2.1. PS/2 Model 25-L01/L04: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 25-L01/L04 header.

 DESCRIPTION                                       8525-L01/L04
 ARCHITECTURE
 Bus Type                                          PC
 Microprocessor                                    8086
 Clock Speed                                       8 MHz
 Instruction Set                                   16 bit
 Addressing                                        16 bit
 I/O Channel Width                                 8 bit
 Interrupt Levels                                  8
  Type (ISA)                                       Edge-triggered,
                                                   Non-shareable
 Maximum Bus Data Transfer Rate
  ISA Burst Transfer Mode                          8 Mbytes/second
 Bus Data/Address Parity Checking
  ISA Bus                                          No
 DMA Channels                                      3
  DMA Burst Mode Supported                         No
 Bus Masters Supported                             No
 Upgradeable Processor Complex                     No

 MEMORY
 Standard (Motherboard)                            512K
 Maximum (Motherboard)                             640K
 Maximum (System)                                  640K (a)
 Memory Chip Speed (ns)                            150
 Memory Chip Type                                  DRAM
 Memory Cache Controller                           No
 Wait States: Motherboard                          0
        Adapter                                    N/A
 Memory Used: Motherboard                          64K Socketed (b)


ΓòÉΓòÉΓòÉ 9.1.2.2. PS/2 Model 25-L01/L04: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 25-L01/L04 header.

 DESCRIPTION                                       8525-L01/L04
 STANDARD FEATURES
 ROM Size                                          64K
 ROM Shadowing                                     No
 Opt. Math Coprocessor                             8087
  Coprocessor Speed                                8MHz
 Standard Graphics                                 MCGA
  Built-in Display                                 Yes
   Monochrome                                      L01
   Color                                           L04
   Dot Pitch (mm)                                  .38
 Maximum Graphics                                  VGA (c)(q)
 Audio Earphone Jack                               Yes
 RS232C Serial Ports                               1
  UART Chip Used                                   NS8250
  Maximum Speed (bits/second)                      9,600
  FIFO Mode Enabled                                N/A
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          2
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       No
 Token-Ring Adapters                               1 (6n)
  Data Transfer Rate (Mbps)                        4
  Remote IPL feature installed                     Yes
 Diskette Drive Support                            Yes (d)
 Hard Disk Drive Support                           Optional (e)
 CMOS Clock                                        No
  Battery Life (years)                             N/A


ΓòÉΓòÉΓòÉ 9.1.2.3. PS/2 Model 25-L01/L04: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 25-L01/L04 header.

 DESCRIPTION                                       8525-L01/L04
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     2
  # of 3.5"/5.25" Bays                             2/0
  # of 3.5"/5.25" Bays Available                   1/0
 Diskette Drives Standard                          1x720K
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)(h)
  5.25" 1.2MB                                      No
  3.5" 720K                                        Optional (h)
  3.5" 1.44MB                                      No
  Internal Drives Supported                        2
  External Drives Supported                        1
  Maximum # Diskette Drives                        2 (h)
   Diskette Caching                                No
 Hard Disk Drives Standard                         0
  Maximum # of Hard Disk Drives                    1
  Optional HD Drive Sizes Available                20MB (h)(l)
  Maximum Internal HD Drive Capacity               20MB (h)(l)
  Drive Type                                       26
  Encoding Method                                  MFM
  Drive Form Factor                                3.5"
  Average Access Rate (ms)                         38/80 (h)(l)
  Controller/Connector Type                        ST-506/Direct Bus Attach
                                                   (DBA) (h)(l)
  Data Transfer Rate (Mb/second)                   5.0 (h)(l)
  Interleave Factor                                3:1 (h)(l)
  Disk Caching S/W Included                        No
  Auto Park                                        No
 Built-in SCSI Support                             No
 Supports TMC-850IBM Internal SCSI Adapter         Yes (4g)
  Number of Int. SCSI devices supported            1 (# of open bays)
 Supports TMC-850IBM External SCSI Adapter         Yes (using 3510 External
                                                   SCSI Storage Enclosure)
 Supports 16-Bit Fast SCSI Adapter                 Yes (using 3510 External
                                                   SCSI Storage Enclosure)

 TAPE STORAGE
 Internal Tape Drive Support                       No
 External Tape Drive Support                       6157 Model 1


ΓòÉΓòÉΓòÉ 9.1.2.4. PS/2 Model 25-L01/L04: Expansion/Operating Systems ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 25-L01/L04 header.

 DESCRIPTION                                       8525-L01/L04
 EXPANSION
 Total Adapter Slots                               2
  # of Long/Short Slots                            1/1
  # of 8/16/32-bit Slots                           2/0/0
  # of Slots with Video Extension                  0
  # of Slots with Network Adapt.                   1
 Available Slots                                   1(s)
  Maximum RAM with Available Slots                 640K
  # of Slots Required for Maximum                  0
 # of Slots Avail after Maximum                    1

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        Yes
 IBM OS/2                                          No
 IBM AIX PS/2                                      No


ΓòÉΓòÉΓòÉ 9.1.2.5. PS/2 Model 25-L01/L04: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 25-L01/L04 header.

 DESCRIPTION                                       8525-L01/L04
 KEYBOARD
 101-Key Enhanced Keyboard                         Yes
 84-Key Space-Saving Keyboard                      No
 LED Indicators on Keyboard                        Yes
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       No
 Keyboard Cord Length (ft)                         6.0

 SECURITY
 C2 Security Enabled                               No
 Keylock: Locks Cover                              No (n)
      Locks Keyboard                               No (n)
 Keyboard Password                                 No
 Power-on Password                                 No
  Network Server Mode                              No


ΓòÉΓòÉΓòÉ 9.1.2.6. PS/2 Model 25-L01/L04: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 25-L01/L04 header.

 DESCRIPTION                                       8525-L01/L04
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
 Dimensions: Height                                15.0" (o)
       Width: Footprint                            9.5"
       Width: Display                              12.6" (o)
       Depth                                       14.7" (o)
 Weight (lbs):                                     32.0 (L01) (o)
                                                   37.0 (L04) (o)
 Carrying Case                                     Optional

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              90 (L01)
                                                   115 (L04)
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Manual
 Amperage at:  90-137 VAC                          2.8 (o)
        180-259 VAC                                1.7 (o)
 Maximum Current Leakage (uA)                      <500
 Operating Range: Temperature                      60-90┬░ F
          Relative Humidity                        8-80%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  683 (o)
 Noise (Avg dB, Operating, 1m)                     44 (o)

 MISCELLANEOUS
 FCC Classification                                B/A (4c)
 Warranty Period                                   1 Year
  Upgrade Carry-In Warranty to On-Site             $40
 BIOS Model/Submodel/Revision                      FA/01/00
 Date Announced                                    06/02/88
 Date Withdrawn                                    03/23/93


ΓòÉΓòÉΓòÉ 9.2. PS/2 Model 25 286 Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
80286-based Model 25 systems.

Choose the section to which you wish to jump, below:

 10MHz Systems
 PS/2 Model 25-006/G06/036/G36

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 9.2.1. PS/2 Model 25-006/G06/036/G36 Tech Specs ΓòÉΓòÉΓòÉ

Because the Model 25-006, 25-G06, 25-036, and 25-G36 are identical except for a
choice of enhanced vs. space-saving keyboard, and the presence or absence of a
hard disk drive, both types will be represented by the one column below.
Unless otherwise indicated, all product information applies equally to all
models.

Note:  This model has been withdrawn.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Jump directly to the PS/2 Model 25 286 Systems header.


ΓòÉΓòÉΓòÉ 9.2.1.1. PS/2 Model 25-006/G06/036/G36: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 25-006/G06/036/G36 header.

 DESCRIPTION                                       8525-006/G06/036/G36
 ARCHITECTURE
 Bus Type                                          AT (ISA)
 Microprocessor                                    80286
 Clock Speed                                       10 MHz
 Instruction Set                                   16 bit
 Addressing                                        24 Bit
 I/O Channel Width                                 16 bit
 Interrupt Levels                                  16
  Type (ISA)                                       Edge-triggered,
                                                   Non-shareable
 Maximum Bus Data Transfer Rate
  ISA Burst Transfer Mode                          8 Mbytes/second
 Bus Data/Address Parity Checking
  ISA Bus                                          No
 DMA Channels                                      7
 DMA Burst Mode Supported                          No
 Bus Masters Supported                             No
 Upgradeable Processor Complex                     No

 MEMORY
 Standard (Motherboard)                            512K (006/G06)
                                                   1MB (036/G36)
 Maximum (Motherboard)                             4MB
 Maximum (System)                                  16MB
 Total # of Sys Bd SIMM Sockets                    4
 # of Sys Bd SIMM Sockets Avail                    2
 Memory Chip Speed (ns)                            120
 Memory Chip Type                                  DRAM
 Memory Cache Controller                           No
 Wait States: Motherboard                          1
        Adapter                                    1
 Memory Used: Motherboard                          512K/1MB SIMMs


ΓòÉΓòÉΓòÉ 9.2.1.2. PS/2 Model 25-006/G06/036/G36: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 25-006/G06/036/G36 header.

 DESCRIPTION                                       8525-006/G06/036/G36
 STANDARD FEATURES
 ROM Size                                          64K
 ROM Shadowing                                     No
  Opt. Math Coprocessor                            80287
  Coprocessor Speed                                10MHz
 Standard Graphics                                 VGA
  Built-in Display                                 Yes
   Monochrome                                      N/A
   Color                                           Yes
   Dot Pitch (mm)                                  .28
 Maximum Graphics                                  VGA (q)
 Audio Earphone Jack                               Yes
 RS232C Serial Ports                               1
  UART Chip Used                                   NS16450
  Maximum Speed (bits/second)                      19,2000
  FIFO Mode Enabled                                N/A
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          2
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       No
 Hard Disk Drive Support                           Optional (b)
 CMOS Clock                                        Yes
  Battery Life (years)                             15
  Replaceable                                      No


ΓòÉΓòÉΓòÉ 9.2.1.3. PS/2 Model 25-006/G06/036/G36: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 25-006/G06/036/G36 header.

 DESCRIPTION                                       8525-006/G06/036/G36
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     2
  # of 3.5"/5.25" Bays                             2/0
  # of 3.5"/5.25" Bays Available                   1/0 (006/G06)
                                                   0/0 (036/G36)
 Diskette Drives Standard                          1x1.44MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)(h)
  5.25" 1.2MB                                      No
  3.5" 720K                                        No
  3.5" 1.44MB                                      Optional (h)
  3.5" 2.88MB                                      No
  Internal Drives Supported                        2
  External Drives Supported                        1
  Maximum # Diskette Drives                        2 (h)
   Diskette Caching                                No
 Hard Disk Drives Standard                         0 (006/G06)
                                                   1x30MB (036/G36)
  Maximum # of Hard Disk Drives                    1
  Drive Form Factor                                3.5"
  Drive Type                                       33 (20MB)
                                                   35 (30MB)
  Optional HD Drive Sizes Available                20MB/30MB (036/G36) (h)
  Maximum Internal HD Drive Capacity               20MB/30MB (006/G06)
                                                   30MB (036/G36)
  Average Access Rate (ms)                         27 (20MB)
                                                   19 (30MB)
  Controller/Connector Type                        ST-506/Direct Bus Attach
                                                   (DBA)
  Encoding Method                                  MFM (20MB)
                                                   RLL (30MB)
  # of Heads                                       2 (30MB)
  # of Platters                                    1 (30MB)
  # of Cylinders                                   920 (30MB)
  Data Transfer Rate (Mbits/sec)                   7.5 (20MB)
                                                   10.2 (30MB)
  Rotational Speed (RPMs)                          3600
  Interleave Factor                                3:1 (20MB)
  Interleave Factor                                4:1 (30MB)
  Shock (Gs): Operating                            10 (30MB)
        Non-operating                              50 (30MB)
  Auto Park                                        No (20MB)
                                                   Yes (30MB)
  Disk Caching S/W Included                        Yes
 Built-in SCSI Support                             No
 Supports TMC-850IBM Internal SCSI Adapter         Yes (006/G06)/No (036/G36)
                                                   (4g)
  Number of Int. SCSI devices supported            1 (# of open bays)
 Supports TMC-850IBM External SCSI Adapter         Yes (using 3510 External
                                                   SCSI Storage Enclosure)
 Supports 16-Bit Fast SCSI Adapter                 Yes (using 3510 External
                                                   SCSI Storage Enclosure)

 TAPE STORAGE
 Internal Tape Drive Support                       No
 External Tape Drive Support                       Yes


ΓòÉΓòÉΓòÉ 9.2.1.4. PS/2 Model 25-006/G06/036/G36: Expansion/Operating Systems ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 25-006/G06/036/G36 header.

 DESCRIPTION                                       8525-006/G06/036/G36
 EXPANSION SLOTS
 Total Adapter Slots                               2
  # of Long/Short Slots                            1/1
  # of 8/16/32-bit Slots                           0/2/0
  # of Slots with Video Extension                  0
 Available Slots                                   2
  Maximum RAM with Available Slots                 16MB
  Maximum RAM Using Only 1 Slot                    12.5MB
  # of Slots Required for Maximum                  2
 # of Slots Avail after Maximum                    0

 OPERATING SYSTEM SUPPORT
 IBM PC/DOS                                        3.3 or later
 IBM OS/2                                          1.1 through 1.30.2
 IBM AIX PS/2                                      No


ΓòÉΓòÉΓòÉ 9.2.1.5. PS/2 Model 25-006/G06/036/G36: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 25-006/G06/036/G36 header.

 DESCRIPTION                                       8525-006/G06/036/G36
 KEYBOARD
 101-Key Enhanced Keyboard                         G06/G36
 84-Key Space-Saving Keyboard                      006/036
 LED Indicators on Keyboard                        G06/G36
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)
  Space-Saving Keyboard                            5.0
  Enhanced Keyboard                                6.0

 SECURITY
 C2 Security Enabled                               No
 Keylock-Locks Cover                               No/Yes (n)
     Locks Keyboard                                No/Yes (n)
 Keyboard Password                                 Yes
 Power-on Password                                 Yes
  Network Server Mode                              Yes


ΓòÉΓòÉΓòÉ 9.2.1.6. PS/2 Model 25-006/G06/036/G36: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 25-006/G06/036/G36 header.

 DESCRIPTION                                       8525-006/G06/036/G36
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
 Dimensions: Height                                15.0" (o)
       Width (Footprint)                           9.5"
       Width (Display)                             12.6" (o)
       Depth                                       14.7" (o)
 Weight (lbs):                                     35.3 (006/036) (o)
                                                   35.3 (G06/G36) (o)
 Carrying Case                                     Optional

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              124.5
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Manual
 Amperage at 90-137 VAC                            3.0 (o)
       80-259 VAC                                  1.7 (o)
 Maximum Current Leakage (uA)                      <500
 Operating Range: Temperature                      60-90┬░ F
          Relative Humidity                        8-80%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  654 (o)
 Noise (Avg dB, Operating, 1m)                     51
    Classification                                 3D

 MISCELLANEOUS
 FCC Classification                                B
 Warranty Period                                   1 Year
  Upgrade Carry-In Warranty to On-Site             $40
 BIOS Model/Submodel/Revision                      FC/09/??
 Announcement Letter Numbers                       NDD90-187, 191-???
 Date Announced                                    05/10/90
 Date Withdrawn                                    12/28/92


ΓòÉΓòÉΓòÉ 9.3. PS/2 Model 30 8086 Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
8086-based Model 30 systems.

Choose the section to which you wish to jump, below:

 8MHz Systems
 PS/2 Model 30-001
 PS/2 Model 30-002
 PS/2 Model 30-021

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 9.3.1. PS/2 Model 30-001 Tech Specs ΓòÉΓòÉΓòÉ

Note:  This model has been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Jump directly to the PS/2 Model 30 Systems header.


ΓòÉΓòÉΓòÉ 9.3.1.1. PS/2 Model 30-001: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 30-001 header.

 DESCRIPTION                                       8530-001
 ARCHITECTURE
 Bus Type                                          PC
 Microprocessor                                    8086
 Clock Speed                                       8 MHz
 Instruction Set                                   16 bit
 Addressing                                        16 bit
 I/O Channel Width                                 8 bit
 Interrupt Levels                                  8
  Type (ISA)                                       Edge-triggered,
                                                   Non-shareable
 Maximum Bus Data Transfer Rate
  ISA Burst Transfer Mode                          8 Mbytes/second
 Bus Data/Address Parity Checking
  ISA Bus                                          No
 DMA Channels                                      3
 DMA Burst Mode Supported                          No
 Bus Masters Supported                             No
 Upgradeable Processor Complex                     No

 MEMORY
 Standard (Motherboard)                            640K
 Maximum (Motherboard)                             640K
 Maximum (System)                                  640K (a)
 Memory Chip Speed (ns)                            150
 Memory Chip Type                                  DRAM
 Memory Cache Controller                           No
 Wait States: Motherboard                          0
        Adapter (a)                                1
 Memory Used: Motherboard                          64K Surface
                                                   256K SIMM


ΓòÉΓòÉΓòÉ 9.3.1.2. PS/2 Model 30-001: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 30-001 header.

 DESCRIPTION                                       8530-001
 STANDARD FEATURES
 ROM Size                                          64K
 ROM Shadowing                                     No
 Opt. Math Coprocessor                             8087
  Coprocessor Speed                                8MHz
 Standard Graphics                                 MCGA
 Maximum Graphics                                  VGA (c)
 RS232C Serial Ports                               1
  UART Chip Used                                   NS8250
  Maximum Speed (bits/second)                      9,600
  FIFO Mode Enabled                                N/A
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          2
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          2
 Hard Disk Drive Support                           Yes (t)
 CMOS Clock                                        Yes
  Battery Life (years)                             15
  Replaceable                                      No
 Speaker/Beeper                                    Beeper


ΓòÉΓòÉΓòÉ 9.3.1.3. PS/2 Model 30-001: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 30-001 header.

 DESCRIPTION                                       8530-001
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     2
  # of 3.5"/5.25" Bays                             2/0
  # of 3.5"/5.25" Bays Available                   1/0
 Diskette Drives Standard                          1x720K
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)(u)
  5.25" 1.2MB                                      No
  3.5" 720K                                        1 (u)
  3.5" 1.44MB                                      No
  3.5" 2.88MB                                      No
  Internal Drives Supported                        2
  External Drives Supported                        1
  Maximum # Diskette Drives                        2 (u)
   Diskette Caching                                No
 Hard Disk Drives Standard                         0
  Maximum # of Hard Disk Drives                    1 (t)(u)
 Optional HD Drive Sizes Available                 20/30MB
  Drive Type                                       26/35
  Encoding Method                                  MFM
  Drive Form Factor                                3.5"
  Maximum Internal HD Drive Capacity               20/30MB
  Average Access Rate (ms)                         27/39
 Controller/Connector Type                         ST-506/Direct Bus Attach
                                                   (DBA)
  Data Transfer Rate (Mb/second)                   7.5
 Interleave Factor                                 3:1
  Rotational Speed (RPMs)                          3600
  Disk Caching S/W Included                        No
  Auto Park                                        No

 TAPE STORAGE
 Internal Tape Drive Support                       No
 External Tape Drive Support                       6157-001
  5.25" Streaming Tape (QIC)                       6157-001
  5.25" QIC SCSI Tape Drive                        No
  5.25" 4mm SCSI Tape Drive                        No
  5.25" 8mm SCSI Tape Drive                        No


ΓòÉΓòÉΓòÉ 9.3.1.4. PS/2 Model 30-001: Expansion/Operating Systems ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 30-001 header.

 DESCRIPTION                                       8530-001
 EXPANSION
 Total Adapter Slots                               3
  # of Long/Short Slots                            3/0
  # of 8/16/32-bit Slots                           3/0/0
  # of Slots with Video Extension                  0
 Available Slots                                   3
  Maximum RAM with Available Slots                 640K
  # of Slots Required for Maximum                  0
 # of Slots Avail after Maximum                    3

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        3.3 or later
 IBM OS/2                                          No
 IBM AIX PS/2                                      No


ΓòÉΓòÉΓòÉ 9.3.1.5. PS/2 Model 30-001: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 30-001 header.

 DESCRIPTION                                       8530-001
 KEYBOARD
 101-Key Enhanced Keyboard                         Yes
 LED Indicators on Keyboard                        Yes
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       No
  Keyboard Cord Length (ft)                        3.0

 SECURITY
 C2 Security Enabled                               No
 Keylock: Locks Cover                              No
      Locks Keyboard                               No
 Keyboard Password                                 No
 Power-on Password                                 No
  Network Server Mode                              No


ΓòÉΓòÉΓòÉ 9.3.1.6. PS/2 Model 30-001: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 30-001 header.

 DESCRIPTION                                       8530-001
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
 Dimensions: Height                                4.0"
       Width                                       15.6"
       Depth                                       16.0"
 Weight (lbs)                                      17.5

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              70
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-137 VAC                          1.5
        180-265 VAC                                0.75
 Maximum Current Leakage (uA)                      <500
 Operating Range: Temperature                      60-90┬░ F
          Relative Humidity                        8-80%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  341
 Noise (Avg dB, Operating, 1m)                     37.5

 MISCELLANEOUS
 FCC Classification                                B
 Warranty Period                                   1 Year
  Upgrade Carry-In Warranty to On-Site             $40
 BIOS Model/Submodel/Revision                      FA/00/04
 Announcement Letter Numbers                       NDD89-162, 191-???
 Date Announced                                    04/04/89
 Date Withdrawn                                    12/27/90


ΓòÉΓòÉΓòÉ 9.3.2. PS/2 Model 30-002 Tech Specs ΓòÉΓòÉΓòÉ

Note:  This model has been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Jump directly to the PS/2 Model 30 Systems header.


ΓòÉΓòÉΓòÉ 9.3.2.1. PS/2 Model 30-002: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 30-002 header.

 DESCRIPTION                                       8530-002
 ARCHITECTURE
 Bus Type                                          PC
 Microprocessor                                    8086
 Clock Speed                                       8 MHz
 Instruction Set                                   16 bit
 Addressing                                        16 bit
 I/O Channel Width                                 8 bit
 Interrupt Levels                                  8
  Type (ISA)                                       Edge-triggered,
                                                   Non-shareable
 Maximum Bus Data Transfer Rate
  ISA Burst Transfer Mode                          8 Mbytes/second
 Bus Data/Address Parity Checking
  ISA Bus                                          No
 DMA Channels                                      3
 DMA Burst Mode Supported                          No
 Bus Masters Supported                             No
 Upgradeable Processor Complex                     No

 MEMORY
 Standard (Motherboard)                            640K
 Maximum (Motherboard)                             640K
 Maximum (System)                                  640K (a)
 Memory Chip Speed (ns)                            150
 Memory Chip Type                                  DRAM
 Memory Cache Controller                           No
 Wait States: Motherboard                          0
        Adapter (a)                                1
 Memory Used: Motherboard                          64K Surface
                                                   256K SIMM


ΓòÉΓòÉΓòÉ 9.3.2.2. PS/2 Model 30-002: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 30-002 header.

 DESCRIPTION                                       8530-002
 STANDARD FEATURES
 ROM Size                                          64K
 ROM Shadowing                                     No
 Opt. Math Coprocessor                             8087
  Coprocessor Speed                                8MHz
 Standard Graphics                                 MCGA
 Maximum Graphics                                  VGA (c)
 RS232C Serial Ports                               1
  UART Chip Used                                   NS8250
  Maximum Speed (bits/second)                      9,600
  FIFO Mode Enabled                                N/A
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          2
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          2
 Hard Disk Drive Support                           Yes (t)
 CMOS Clock                                        Yes
  Battery Life (years)                             15
  Replaceable                                      No
 Speaker/Beeper                                    Beeper


ΓòÉΓòÉΓòÉ 9.3.2.3. PS/2 Model 30-002: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 30-002 header.

 DESCRIPTION                                       8530-002
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     2
  # of 3.5"/5.25" Bays                             2/0
  # of 3.5"/5.25" Bays Available                   0/0
 Diskette Drives Standard                          2-720K
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)(h)
  5.25" 1.2MB                                      No
  3.5" 720K                                        No
  3.5" 1.44MB                                      No
  Internal Drives Supported                        2
  External Drives Supported                        1
  Maximum # Diskette Drives                        2 (h)
   Diskette Caching                                No
 Hard Disk Drives Standard                         0
 Optional HD Drive Sizes Avail.                    Yes (t)
  Drive Form Factor                                3.5"

 TAPE STORAGE
 Internal Tape Drive Support                       No
 External Tape Drive Support                       6157-001
  Tape Capacity (MB)                               60


ΓòÉΓòÉΓòÉ 9.3.2.4. PS/2 Model 30-002: Expansion/Operating Systems ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 30-002 header.

 DESCRIPTION                                       8530-002
 EXPANSION
 Total Adapter Slots                               3
  # of Long/Short Slots                            3/0
  # of 8/16/32-bit Slots                           3/0/0
  # of Slots with Video Extension                  0
 Available Slots                                   3
  Maximum RAM with Available Slots                 640K
  # of Slots Required for Maximum                  0
 # of Slots Avail after Maximum                    3

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        3.3 or later
 IBM OS/2                                          No
 IBM AIX PS/2                                      No


ΓòÉΓòÉΓòÉ 9.3.2.5. PS/2 Model 30-002: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 30-002 header.

 DESCRIPTION                                       8530-002
 KEYBOARD
 101-Key Enhanced Keyboard                         Yes
 LED Indicators on Keyboard                        Yes
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       No
 Keyboard Cord Length (ft)                         3.0

 SECURITY
 C2 Security Enabled                               No
 Keylock: Locks Cover                              No
      Locks Keyboard                               No
 Keyboard Password                                 No
 Power-on Password                                 No
  Network Server Mode                              No


ΓòÉΓòÉΓòÉ 9.3.2.6. PS/2 Model 30-002: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 30-002 header.

 DESCRIPTION                                       8530-002
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
 Dimensions: Height                                4.0"
       Width                                       15.6"
       Depth                                       16.0"
 Weight (lbs)                                      17.5

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              70
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-137 VAC                          1.5
        180-265 VAC                                0.75
 Maximum Current Leakage (uA)                      <500
 Operating Range: Temperature                      60-90┬░ F
          Rel. Humidity                            8-80%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  341
 Noise (Avg dB, Operating, 1m)                     37.5

 MISCELLANEOUS
 FCC Classification                                B
 Warranty Period                                   1 Year
 BIOS Model/Submodel/Revision                      FA/00/00
 Announcement Letter Numbers                       NDD87-134, 191-???
 Date Announced                                    04/02/87
 Date Withdrawn                                    07/05/89


ΓòÉΓòÉΓòÉ 9.3.3. PS/2 Model 30-021 Tech Specs ΓòÉΓòÉΓòÉ

Note:  This model has been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Jump directly to the PS/2 Model 30 Systems header.


ΓòÉΓòÉΓòÉ 9.3.3.1. PS/2 Model 30-021: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 30-021 header.

 DESCRIPTION                                       8530-021
 ARCHITECTURE
 Bus Type                                          PC
 Microprocessor                                    8086
 Clock Speed                                       8 MHz
 Instruction Set                                   16 bit
 Addressing                                        16 bit
 I/O Channel Width                                 8 bit
 Interrupt Levels                                  8
  Type (ISA)                                       Edge-triggered,
                                                   Non-shareable
 Maximum Bus Data Transfer Rate
  ISA Burst Transfer Mode                          8 Mbytes/second
 Bus Data/Address Parity Checking
  ISA Bus                                          No
 DMA Channels                                      3
 DMA Burst Mode Supported                          No
 Bus Masters Supported                             No
 Upgradeable Processor Complex                     No

 MEMORY
 Standard (Motherboard)                            640K
 Maximum (Motherboard)                             640K
 Maximum (System)                                  640K (a)
 Memory Chip Speed (ns)                            150
 Memory Chip Type                                  DRAM
 Memory Cache Controller                           No
 Wait States: Motherboard                          0
        Adapter (a)                                1
 Memory Used: Motherboard                          64K Surface
                                                   256K SIMM


ΓòÉΓòÉΓòÉ 9.3.3.2. PS/2 Model 30-021: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Return to the PS/2 Model 30-021 header.

 DESCRIPTION                                       8530-021
 STANDARD FEATURES
 ROM Size                                          64K
 ROM Shadowing                                     No
 Opt. Math Coprocessor                             8087
  Coprocessor Speed                                8MHz
 Standard Graphics                                 MCGA
 Maximum Graphics                                  VGA (c)
 RS232C Serial Ports                               1 (d)
  UART Chip Used                                   NS8250
  Maximum Speed (bits/second)                      9,600
  FIFO Mode Enabled                                N/A
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          2
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          2
 Hard Disk Drive Support                           Yes (d)
 CMOS Clock                                        Yes
  Battery Life (years)                             15
  Replaceable                                      No
 Speaker/Beeper                                    Beeper


ΓòÉΓòÉΓòÉ 9.3.3.3. PS/2 Model 30-021: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 30-021 header.

 DESCRIPTION                                       8530-021
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     2
  # of 3.5"/5.25" Bays                             2/0
  # of 3.5"/5.25" Bays Available                   0/0
 Diskette Drives Standard                          1-720K
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)
  5.25" 1.2MB                                      No
  3.5" 720K                                        No
  3.5" 1.44MB                                      No
  Internal Drives Supported                        1
  External Drives Supported                        1
  Maximum # Diskette Drives                        2
 Hard Disk Drives Standard                         1-20MB
  Maximum # of Hard Disk Drives                    1
  Optional HD Drive Sizes Avail.                   N/A
  Maximum Internal HD Capacity                     20MB
  Drive Form Factor                                3.5"
  Encoding Method                                  MFM
  Serial # Under 2700000:
   Average Access Rate (ms)                        80
   Drive Type                                      26
   Data Transfer Rate (Mb/Sec)                     5.0
  Rotational Speed (RPMs)                          3600
   Interleave Factor                               3:1
  Serial # 2700000-2999999:
   Average Access Rate (ms)                        27
   Drive Type                                      33
   Data Transfer Rate                              7.5
  Rotational Speed (RPMs)                          3600
   Interleave Factor                               3:1
  Controller/Connector Type                        ST-506/Direct Bus Attach
                                                   (DBA)
  Disk Caching S/W Included                        No
  Auto Park                                        No
 Maximum # of DD and HD                            3

 TAPE STORAGE
 Internal Tape Drive Support                       No
 External Tape Drive Support                       6157-001
  Tape Capacity (MB)                               60


ΓòÉΓòÉΓòÉ 9.3.3.4. PS/2 Model 30-021: Expansion/Operating Systems ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Return to the PS/2 Model 30-021 header.

 DESCRIPTION                                       8530-021
 EXPANSION
 Total Adapter Slots                               3
  # of Long/Short Slots                            3/0
  # of 8/16/32-bit Slots                           3/0/0
  # of Slots with Video Extension                  0
 Available Slots                                   3
  Maximum RAM with Available Slots                 640K
  # of Slots Required for Maximum                  0
 # of Slots Avail after Maximum                    3

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        3.3 or later
 IBM OS/2                                          No
 IBM AIX PS/2                                      No


ΓòÉΓòÉΓòÉ 9.3.3.5. PS/2 Model 30-021: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 30-021 header.

 DESCRIPTION                                       8530-021
 KEYBOARD
 101-Key Enhanced Keyboard                         Yes
 LED Indicators on Keyboard                        Yes
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       No
 Keyboard Cord Length (ft)                         3.0

 SECURITY
 C2 Security Enabled                               No
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               Yes
 Keyboard Password                                 No
 Power-on Password                                 No
  Network Server Mode                              No


ΓòÉΓòÉΓòÉ 9.3.3.6. PS/2 Model 30-021: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 30-021 header.

 DESCRIPTION                                       8530-021
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
 Dimensions: Height                                4.0"
       Width                                       15.6"
       Depth                                       16.0"
 Weight (lbs)                                      21.0

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              70
  World-wide (110/60,220/60)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-137 VAC                          1.5
        180-265 VAC                                0.75
 Maximum Current Leakage (uA)                      <500
 Operating Range: Temperature                      60-90┬░ F
          Rel. Humidity                            8-80%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  341
 Noise (Avg dB, Operating, 1m)                     37.5

 MISCELLANEOUS
 FCC Classification                                B
 Warranty Period                                   1 Year
 BIOS Model/Submodel/Revision                      FA/00/00
 Announcement Letter Numbers                       NDD89-134, 191-???
 Date Announced                                    04/02/87
 Date Withdrawn                                    12/27/90


ΓòÉΓòÉΓòÉ 9.4. PS/2 Model 30 286 Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
80286-based Model 30 systems.

Choose the section to which you wish to jump, below:

 10MHz Systems
 PS/2 Model 30-E01/E0R
 PS/2 Model 30-E21
 PS/2 Model 30-E31/E41

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 9.4.1. PS/2 Model 30-E01/E0R Tech Specs ΓòÉΓòÉΓòÉ

This section contains information about the 80286-based Model 30-E01/E0R
systems.  These models are identical except for the difference in keyboards.
Therefore the two models will be covered by this one document.  Differences
will be identified by the model number in parentheses.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Jump directly to the PS/2 Model 30 286 Systems header.


ΓòÉΓòÉΓòÉ 9.4.1.1. PS/2 Model 30-E01/E0R: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 30-E01/E0R header.

 DESCRIPTION                                       8530-E01/E0R
 ARCHITECTURE
 Bus Type                                          AT
 Microprocessor                                    80286
 Clock Speed                                       10 MHz
 Processor Cache Controller                        No
 Instruction Set                                   16 bit
 Addressing                                        24 bit
 I/O Channel Width                                 16/8 Bit
 Interrupt Levels                                  16
  Type (ISA)                                       Edge-triggered,
                                                   Non-shareable
 Maximum Bus Data Transfer Rate
  ISA Burst Transfer Mode                          8 Mbytes/second
 Bus Data/Address Parity Checking
  ISA Bus                                          No
 DMA Channels                                      7
 DMA Burst Mode Supported                          No
 Bus Masters Supported                             No
 Upgradeable Processor Complex                     No

 MEMORY
 Standard (Motherboard)                            512K/1MB (4d)
 Maximum (Motherboard)                             4MB
 Maximum (System)                                  16MB
 Total # of Sys Bd SIMM Sockets                    4
 # of Sys Bd SIMM Sockets Avail                    2/0
 Memory Chip Speed (ns)                            120
 Memory Chip Type                                  DRAM
 Wait States: Motherboard                          1
        Adapter                                    1
 Memory Used: Motherboard                          256K/1MB SIMM


ΓòÉΓòÉΓòÉ 9.4.1.2. PS/2 Model 30-E01/E0R: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 30-E01/E0R header.

 DESCRIPTION                                       8530-E01/E0R
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     No
 Opt. Math Coprocessor                             80287
  Coprocessor Speed                                10MHz
 Standard Graphics                                 VGA
 Maximum Graphics                                  VGA
 RS232C Serial Ports                               1
  UART Chip Used                                   NS16550
  Maximum Speed (bits/second)                      19,200
  FIFO Mode Enabled                                N/A
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          2
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          2
 Hard Disk Drive Support                           Yes (x)
 CMOS Clock                                        Yes
  Battery Life (years)                             5
  Replaceable                                      Yes
 Speaker/Beeper                                    Beeper


ΓòÉΓòÉΓòÉ 9.4.1.3. PS/2 Model 30-E01/E0R: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 30-E01/E0R header.

 DESCRIPTION                                       8530-E01/E0R
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     2
  # of 3.5"/5.25" Bays                             2/0
  # of 3.5"/5.25" Bays Available                   1/0
 Diskette Drives Standard                          1x1.44MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)
  5.25" 1.2MB                                      No
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      Optional (z)
  Internal Drives Supported                        2 (z)
  External Drives Supported                        1 (z)
  Maximum # Diskette Drives                        2 (z)
 Hard Disk Drives Standard                         0
  Maximum # of Hard Disk Drives                    1 (z)
  Optional HD Drive Sizes Available                20/30MB
  Drive Type                                       26/35
  Encoding Method                                  MFM
  Drive Form Factor                                3.5"
  Maximum Internal HD Capacity                     20/30MB
  Average Access Rate (ms)                         27/39
  Controller/Connector Type                        ST-506/Direct Bus Attach
                                                   (DBA)
  Data Transfer Rate (/second)                     7.5 Mbits
  Rotational Speed (RPMs)                          3600
  Interleave Factor                                3:1
  Disk Caching S/W Included                        Yes
  Auto Park                                        No
 Maximum # of DD and HD                            3

 TAPE STORAGE
 Internal Tape Drive Support                       No
 External Tape Drive Support                       Yes


ΓòÉΓòÉΓòÉ 9.4.1.4. PS/2 Model 30-E01/E0R: Expansion/Operating Systems ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 30-E01/E0R header.

 DESCRIPTION                                       8530-E01/E0R
 EXPANSION
 Total Adapter Slots                               3
  # of Long/Short Slots                            3/0
  # of 8/16/32-bit Slots                           0/3/0 (3a)
  # of Slots with Video Extension                  0
 Available Slots                                   3
  Max. RAM with Available Slots                    15.5MB
  Max. RAM Using Only 1 Slot                       12.5MB (2c)
  # of Slots Required for Maximum                  2
 # of Slots Avail after Maximum                    1

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        3.3 or later
 IBM OS/2                                          1.1 through 1.30.2 (2f)
 IBM AIX PS/2                                      No


ΓòÉΓòÉΓòÉ 9.4.1.5. PS/2 Model 30-E01/E0R: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 30-E01/E0R header.

 DESCRIPTION                                       8530-E01/E0R
 KEYBOARD
 101-Key Enhanced Keyboard                         Yes (E01)
 50-Key Bank Teller Keyboard                       Yes (E0R)
 LED Indicators on Keyboard                        Yes
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         6.0

 SECURITY
 C2 Security Enabled                               No
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Keyboard Password                                 Yes
 Power-on Password                                 Yes
  Network Server Mode                              Yes


ΓòÉΓòÉΓòÉ 9.4.1.6. PS/2 Model 30-E01/E0R: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 30-E01/E0R header.

 DESCRIPTION                                       8530-E01/E0R
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
 Dimensions: Height                                4.0"
       Width                                       16.0"
       Depth                                       15.6"
 Weight (lbs)                                      17.0 (2e)

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              90
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Manual
 Amperage at:  90-137 VAC                          2.5
        180-265 VAC                                1.3
 Maximum Current Leakage (uA)                      <500
 Operating Range: Temperature                      60-90┬░ F
          Rel. Humidity                            8-80%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  438
 Noise (Avg dB, Operating, 1m)                     46

 MISCELLANEOUS
 FCC Classification                                B
 Warranty Period                                   1 Year
 BIOS Model/Submodel/Revision                      FC/09/00
 Announcement Letter Numbers                       NDD88-450, 191-??? (E01)
                                                   NDD89-313, 191-??? (E0R)
                                                   NDD89-655, 191-??? (E01,
                                                   enhanced)
 Date Announced                                    09/13/87 (E01)
                                                   06/06/89 (E0R)
 Date Withdrawn                                    05/04/92 (E01)
                                                   ??/??/?? (E0R)


ΓòÉΓòÉΓòÉ 9.4.2. PS/2 Model 30-E21 Tech Specs ΓòÉΓòÉΓòÉ

Note:  This product has been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Jump directly to the PS/2 Model 30 286 Systems header.


ΓòÉΓòÉΓòÉ 9.4.2.1. PS/2 Model 30-E21: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 30-E21 header.

 DESCRIPTION                                       8530-E21
 ARCHITECTURE
 Bus Type                                          AT
 Microprocessor                                    80286
 Clock Speed                                       10 MHz
 Instruction Set                                   16 bit
 Addressing                                        24 bit
 I/O Channel Width                                 16/8 Bit
 Interrupt Levels                                  16
  Type (ISA)                                       Edge-triggered,
                                                   Non-shareable
 Maximum Bus Data Transfer Rate
  ISA Burst Transfer Mode                          8 Mbytes/second
 Bus Data/Address Parity Checking
  ISA Bus                                          No
 DMA Channels                                      7
 DMA Burst Mode Supported                          No
 Bus Masters Supported                             No
 Upgradeable Processor Complex                     No

 MEMORY
 Standard (Motherboard)                            512K/1MB (4d)
 Maximum (Motherboard)                             4MB
 Maximum (System)                                  16MB
 Total # of Sys Bd SIMM Sockets                    4
 # of Sys Bd SIMM Sockets Avail                    2/0
 Memory Chip Speed (ns)                            120
 Memory Chip Type                                  DRAM
 Memory Cache Controller                           No
 Wait States: Motherboard                          1
        Adapter                                    1
 Memory Used: Motherboard                          256K/1MB SIMM


ΓòÉΓòÉΓòÉ 9.4.2.2. PS/2 Model 30-E21: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 30-E21 header.

 DESCRIPTION                                       8530-E21
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     No
 Opt. Math Coprocessor                             80287
  Coprocessor Speed                                10MHz
 Standard Graphics                                 VGA
 Maximum Graphics                                  VGA (c)
 RS232C Serial Ports                               1
  UART Chip Used                                   NS16550
  Maximum Speed (bits/second)                      19,200
  FIFO Mode Enabled                                No
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          2
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          2
 Hard Disk Drive Support                           Yes (x)
 CMOS Clock                                        Yes
  Battery Life (years)                             5
  Replaceable                                      Yes
 Speaker/Beeper                                    Beeper


ΓòÉΓòÉΓòÉ 9.4.2.3. PS/2 Model 30-E21: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 30-E21 header.

 DESCRIPTION                                       8530-E21
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     2
  # of 3.5"/5.25" Bays                             2/0
  # of 3.5"/5.25" Bays Available                   0/0
 Diskette Drives Standard                          1x1.44MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)
  5.25" 1.2MB                                      No
  3.5" 720K                                        No (i)
  3.5" 1.44MB                                      No
  Internal Drives Supported                        1
  External Drives Supported                        1
  Maximum # Diskette Drives                        2
 Hard Disk Drives Standard                         1x20MB
  Maximum # of Hard Disk Drives                    1
  Optional HD Drive Sizes Avail.                   N/A
  Maximum Internal HD Capacity                     20MB
  Drive Form Factor                                3.5"
  Encoding Method                                  MFM
  Serial # Below 9500000:
   Average Access Rate (ms)                        80
   Drive Type                                      26
   Data Transfer Rate (Mb/Sec)                     5.0
   Rotational Speed (RPMs)                         3600
   Interleave Factor                               2:1
  Serial # 9500000-9999999:
   Average Access Rate (ms)                        27
   Drive Type                                      33
   Data Transfer Rate (Mb/Sec)                     7.5
   Rotational Speed (RPMs)                         3600
   Interleave Factor                               3:1
  Controller/Connector Type                        ST-506/Direct Bus Attach
                                                   (DBA)
  Disk Caching S/W Included                        Yes
  Auto Park                                        No
 Maximum # of DD and HD                            3

 TAPE STORAGE
 Internal Tape Drive Support                       No
 External Tape Drive Support                       Yes


ΓòÉΓòÉΓòÉ 9.4.2.4. PS/2 Model 30-E21: Expansion/Operating Systems ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 30-E21 header.

 DESCRIPTION                                       8530-E21
 EXPANSION
 Total Adapter Slots                               3
  # of Long/Short Slots                            3/0
  # of 8/16/32-bit Slots                           0/3/0 (3a)
  # of Slots with Video Extension                  0
 Available Slots                                   3
  Max. RAM with Available Slots                    15.5MB
  Max. RAM Using Only 1 Slot                       12.5MB (2c)
  # of Slots Required for Maximum                  2
 # of Slots Avail after Maximum                    1

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        3.3 or later
 IBM OS/2                                          1.1 through 1.30.2
 IBM AIX PS/2                                      No


ΓòÉΓòÉΓòÉ 9.4.2.5. PS/2 Model 30-E21: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 30-E21 header.

 DESCRIPTION                                       8530-E21
 KEYBOARD
 101-Key Enhanced Keyboard                         Yes
 LED Indicators on Keyboard                        Yes
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         6.0

 SECURITY
 C2 Security Enabled                               No
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Keyboard Password                                 Yes
 Power-on Password                                 Yes
  Network Server Mode                              Yes


ΓòÉΓòÉΓòÉ 9.4.2.6. PS/2 Model 30-E21: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 30-E21 header.

 DESCRIPTION                                       8530-E21
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
 Dimensions: Height                                4.0"
       Width                                       16.0"
       Depth                                       15.6"
 Weight (lbs)                                      19.0

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              90
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Manual
 Amperage at:  90-137 VAC                          2.5
        180-265 VAC                                1.3
 Maximum Current Leakage (uA)                      <500
 Operating Range: Temperature                      60-90┬░ F
          Rel. Humidity                            8-80%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  438
 Noise (Avg dB, Operating, 1m)                     46

 MISCELLANEOUS
 FCC Classification                                B
 Warranty Period                                   1 Year
 BIOS Model/Submodel/Revision                      FC/09/00
 Announcement Letter Numbers                       NDD88-450, 191-??? (E21)
                                                   NDD89-655, 191-??? (E21,
                                                   enhanced)
 Date Announced                                    09/13/88
 Date Withdrawn                                    09/11/91


ΓòÉΓòÉΓòÉ 9.4.3. PS/2 Model 30-E31/E41 (8530) Tech Specs ΓòÉΓòÉΓòÉ

This section contains information about the 286-based Model 30-E31/E41.  These
models are identical except for the size of the hard disk drive, and the
installed memory configurations.  Therefore both models will be covered by this
one document.  Differences will be indicated by model number in parentheses.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
  Architecture/Memory                              Standard Features
  Disk/Tape Storage                                Expansion/Operating Systems
  Keyboard/Security                                Physical/Environmental/Misc

 Jump directly to the PS/2 Model 30 286 Systems header.


ΓòÉΓòÉΓòÉ 9.4.3.1. PS/2 Model 30-E31/E41: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 30-E31/E41 header.

 DESCRIPTION                                       8530-E31/E41
 ARCHITECTURE
 Bus Type                                          AT (ISA)
 Microprocessor                                    80286
 Clock Speed                                       10 MHz
 Instruction Set                                   16 bit
 Addressing                                        24 bit
 I/O Channel Width                                 16/8 Bit
 Interrupt Levels                                  16
  Type (ISA)                                       Edge-triggered,
                                                   Non-shareable
 Maximum Bus Data Transfer Rate
  ISA Burst Transfer Mode                          8 Mbytes/second
 Bus Data/Address Parity Checking
  ISA Bus                                          No
 DMA Channels                                      7
  DMA Burst Mode Supported                         No
 Bus Masters Supported                             No
 Upgradeable Processor Complex                     No

 MEMORY
 Standard (Motherboard)                            1MB
 Maximum (Motherboard)                             4MB
 Maximum (System)                                  16MB
 Total # of Motherboard SIMM Sockets               4
 # of Motherboard SIMM Sockets Available           0
 Memory Chip Speed (ns)                            120
 Memory Chip Type                                  DRAM
 Memory Cache Controller                           No
 Wait States: Motherboard                          1
        Adapter                                    1
 Memory Used: Motherboard                          256K/1MB SIMM


ΓòÉΓòÉΓòÉ 9.4.3.2. PS/2 Model 30-E31/E41: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 30-E31/E41 header.

 DESCRIPTION                                       8530-E31/E41
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     No
 Opt. Math Coprocessor                             80287
  Coprocessor Speed                                10MHz
 Standard Graphics                                 VGA
 Maximum Graphics                                  VGA (c)
 RS232C Serial Ports                               1
  UART Chip Used                                   NS16550
  Maximum Speed (bits/second)                      19,200
  FIFO Mode Enabled                                No
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          2
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          2
 Hard Disk Drive Support                           Yes (x)
 CMOS Clock                                        Yes
  Battery Life (years)                             5
  Replaceable                                      Yes
 Speaker/Beeper                                    Beeper


ΓòÉΓòÉΓòÉ 9.4.3.3. PS/2 Model 30-E31/E41: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 30-E31/E41 header.

 DESCRIPTION                                       8530-E31/E41
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     2
  # of 3.5"/5.25" Bays                             2/0
  # of 3.5"/5.25" Bays Available                   0/0
 Diskette Drives Standard                          1x1.44MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)
  5.25" 1.2MB                                      No
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      No
  3.5" 2.88MB                                      No
  Internal Drives Supported                        1
  External Drives Supported                        1
  Maximum # Diskette Drives                        2
 Hard Disk Drives Standard                         1x30MB (E31)
                                                   1x45MB (E41)
  Drive Type                                       35 or 33 (30MB)
                                                   37 (45MB)
  Encoding Method                                  RLL or MFM (30MB)
                                                   MFM (45MB)
  Drive Form Factor                                3.5"
  Maximum # of Hard Disk Drives                    1
  Optional HD Drive Sizes Available                N/A
  Maximum Internal HD Drive Capacity               30MB (E31)
                                                   45MB (E41)
   # of Heads                                      ? (30MB)
                                                   6 (45MB)
   # of Platters                                   ? (30MB)
                                                   ? (45MB)
   # of Sectors/Track                              ?? (30MB)
                                                   26 (45MB)
   # of Cylinders                                  ??? (30MB)
                                                   581 (45MB)
   Average Access Rate (ms)                        19/27 (30MB) (2i)
                                                   32 (45MB)
   Data Transfer Rate(Mbits/sec)                   10.2/7.5 (30MB) (2i)
                                                   7.5 (45MB)
   Rotational Speed (RPMs)                         3600
   Interleave Factor                               4:1/3:1 (2i) (30MB) |
                                                   3:1 (45MB)
  Controller/Connector Type                        ST-506/Direct Bus Attach
                                                   (DBA)
  Disk Caching                                     Yes
  Auto Park                                        Yes
 Maximum # of DD and HD                            3
 Built-in SCSI Support                             No
 Supports TMC-850IBM Internal SCSI Adapter         No (4g)
 Supports TMC-850IBM External SCSI Adapter         Yes (using 3510 External
                                                   SCSI Storage Enclosure)
 Supports 16-Bit Fast SCSI Adapter                 Yes (using 3510 External
                                                   SCSI Storage Enclosure)

 TAPE STORAGE
 Internal Tape Drive Support                       No
 External Tape Drive Support                       6157-001
  5.25" Streaming Tape (QIC)                       6157-001
  5.25" QIC SCSI Tape Drive                        No
  5.25" 4mm SCSI Tape Drive                        No
  5.25" 8mm SCSI Tape Drive                        No


ΓòÉΓòÉΓòÉ 9.4.3.4. PS/2 Model 30-E31/E41: Expansion/Operating Systems ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
  Architecture/Memory                              Standard Features
  Disk/Tape Storage
  Keyboard/Security                                Physical/Environmental/Misc

 Return to the PS/2 Model 30-E31/E41 header.

 DESCRIPTION                                       8530-E31/E41
 EXPANSION SLOTS
 Total Adapter Slots                               3
  # of Long/Short Slots                            3/0
  # of 8/16/32-bit Slots                           0/3/0 (3a)
  # of Slots with Video Extension                  0
 Available Slots                                   3
  Maximum RAM with Available Slots                 15.5MB
  Maximum RAM Using Only 1 Slot                    12.5MB (2c)
  # of Slots Required for Maximum                  2
 # of Slots Avail after Maximum                    1

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        3.3 or later
 IBM OS/2                                          1.1 through 1.30.2
 IBM AIX PS/2                                      No


ΓòÉΓòÉΓòÉ 9.4.3.5. PS/2 Model 30-E31/E41: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 30-E31/E41 header.

 DESCRIPTION                                       8530-E31/E41
 KEYBOARD
 101-Key Enhanced Keyboard                         Yes
 LED Indicators on Keyboard                        Yes
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         6.0

 SECURITY
 C2 Security Enabled                               No
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Keyboard Password                                 Yes
 Power-on Password                                 Yes
  Network Server Mode                              Yes


ΓòÉΓòÉΓòÉ 9.4.3.6. PS/2 Model 30-E31/E41: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 30-E31/E41 header.

 DESCRIPTION                                       8530-E31/E41
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
 Dimensions: Height                                4.0"
       Width                                       16.0"
       Depth                                       15.6"
 Weight (lbs)                                      19.0

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              90
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Manual
 Amperage at:  90-137 VAC                          2.5
        180-265 VAC                                1.3
 Maximum Current Leakage (uA)                      <500
 Operating Range: Temperature                      60-90┬░ F
          Relative Humidity                        8-80%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  438
 Noise (Avg dB, Operating, 1m)                     46

 MISCELLANEOUS
 FCC Classification                                B
 UL Approval                                       UL 478, 5th Edition
 Warranty Period                                   1 Year
  Upgrade Carry-In Warranty to On-Site             $40
 BIOS Model/Submodel/Revision                      FC/09/02 (E31)
                                                   FC/09/?? (E41)
 Announcement Letter Numbers                       NDD89-556, 191-??? (E31)
                                                   NDD91-141, 191-??? (E41)
 Date Announced                                    09/26/89 (E31)
                                                   04/23/91 (E41)
 Date Withdrawn                                    01/17/92 (E31)
                                                   05/04/92 (E41)


ΓòÉΓòÉΓòÉ 9.5. PS/2 Model 35 386SX Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
386SX-based Model 35 systems.

Choose the section to which you wish to jump, below:

 20MHz Systems
 PS/2 Model 35-040/043/4B1/4B2
 PS/2 Model 35(LS)-14X/24X

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 9.5.1. PS/2 Model 35-040/043/4B1/4B2 Tech Specs ΓòÉΓòÉΓòÉ

The PS/2 Models 35-040, 35-043, 35-4B1, and 35-4B2 are identical except for the
lack of a hard disk drive in the 040, the size of the hard disk drive in the
other models, and the inclusion of a color monitor with the 4B1 and 4B2 models.
Therefore all models will be covered by this one document.  Differences will be
indicated by model number in parentheses.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Jump directly to the PS/2 Model 35 386SX Systems header.


ΓòÉΓòÉΓòÉ 9.5.1.1. PS/2 Model 35-040/043: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 35-040/043/4B1/4B2 header.

 DESCRIPTION                                       8535-040/043/4B1/4B2
 ARCHITECTURE
 Bus Type                                          AT (ISA)
 Microprocessor                                    Intel 386SX
 Clock Speed                                       20
 Instruction Set                                   32 bit
 Addressing                                        24 Bit
 I/O Channel Width                                 16 bit
 Interrupt Levels                                  16
  Type (ISA)                                       Edge-triggered,
                                                   Non-shareable
 Maximum Bus Data Transfer Rate
  ISA Burst Transfer Mode                          8 Mbytes/second
 Bus Data/Address Parity Checking
  ISA Bus                                          No
 DMA Channels                                      7
  DMA Burst Mode Supported                         No
 Bus Masters Supported                             No
 Upgradeable Processor Complex                     No
 Matched Memory Cycle                              No
 Page Memory Logic                                 No (7a)

 MEMORY
 Standard (Motherboard)                            2MB (2w)
 Maximum (Motherboard)                             16MB
 Maximum (System)                                  16MB (2r)
 Total # of Motherboard SIMM Sockets               3
 # of Motherboard SIMM Sockets Available           2
 Standard Memory Speed (ns)                        85
 Memory Type                                       DRAM
 Memory Cache Controller                           No
 Wait States: Motherboard                          0-2
        Adapter                                    N/A (8q)
 Memory Used: Motherboard                          1/2/4/8MB SIMMs (70-85ns)


ΓòÉΓòÉΓòÉ 9.5.1.2. PS/2 Model 35-040/043/4B1/4B2: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 35-040/043/4B1/4B2 header.

 DESCRIPTION                                       8535-040/043/4B1/4B2
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 BIOS Extensions Stored on Disk                    No
 Setup & Diags Stored on Disk                      No
 Optional Math Coprocessor                         387SX (6e)
  Coprocessor Speed                                20MHz
 Standard Graphics                                 VGA+
  8/16/32-bit Controller                           16
  132-Column Text Mode                             Yes
  Bus Master                                       No
  Video Memory (DRAM) Standard                     256K
 Maximum Graphics                                  VGA+
 Color Monitor Included                            Yes (4B1/4B2)
  8511 Color Monitor                               (4B2)
  8512 Color Monitor                               (4B1)
 RS232C Serial Ports                               1
  UART Chip Used                                   NS 16450-compatible
  Maximum Speed (bits/second)                      ???
  FIFO Mode Enabled                                N/A
  Maximum Ports Supported                          ???
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Maximum Ports Supported                          ???
 External SCSI port                                No
 CMOS Clock                                        Yes
  CMOS Battery Life (years)                        5
  Replaceable                                      Yes


ΓòÉΓòÉΓòÉ 9.5.1.3. PS/2 Model 35-040/043/4B1/4B2: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 35-040/043/4B1/4B2 header.

 DESCRIPTION                                       8535-040/043/4B1/4B2
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     2
  # of 3.5"/5.25" Bays                             0/2 (6q)(6r)
  # of 3.5"/5.25" Bays Available                   0/1 (one half-height) (040)
                                                   (6r)
                                                   0/0 (043.4B1/4B2)
 Selectable Boot                                   Yes
  Bootable Physical Drives                         All
 Diskette Drives Standard                          1x1.44MB
 Optional Diskette Drives
  5.25" 360K                                       N/A
  5.25" 1.2MB                                      Optional (040) (i)(4t)
                                                   N/A (043/4B1/4B2)
   Media Sensing                                   No
  3.5" 720K                                        N/A (y)
  3.5" 1.44MB                                      Optional (040) (i)(4t)
                                                   N/A (043/4B1/4B2)
   Media Sensing                                   Yes
  3.5" 2.88MB                                      Optional (040) (i)(4t)
                                                   N/A (043/4B1/4B2)
   Media Sensing                                   Yes
  Internal Drives Supported                        2 (040) (4t)
                                                   1 (043/4B1/4B2)
  External Drives Supported                        1
  Maximum # Diskette Drives                        3 (040) (4t)
                                                   2 (043/4B1/4B2)
   Diskette Caching                                No
 Hard Disk Drives Standard                         0 (040)
                                                   1x40MB (043/4B1)
                                                   1x80MB (4B2)
  Maximum # of Hard Disk Drives                    1
  Drive Type                                       N/A
  Encoding Method                                  RLL
  Drive Form Factor                                3.5"
  Optional HD Sizes Available: (4p)                40MB (040)
                                                   80MB (040)
                                                   N/A (043/4B1/4B2)
  Maximum Internal HD Drive Capacity               80MB (040/4B2) (3z)(4t)(5k)
                                                   40MB (043/4B1) (3z)(5k)
  Avg Access Rate (ms): 40MB                       17
             80MB                                  17
  Sector Buffer Size                               32K (043/4B1/4B2)
  Data Transfer Rate (/second)                     1.35 MBytes (043/4B1/4B2)
  Rotational Speed (RPMs)                          3600 (043/4B1/4B2)
  # of Heads                                       2 (043/4B1)
                                                   ?? (4B2)
  # of Platters                                    1 (043/4B1)
                                                   ?? (4B2)
  Sectors per Track                                39 (043/4B1)
                                                   ?? (4B2)
  # of Cylinders                                   1038 (043/4B1)
                                                   ?? (4B2)
  Interleave Factor                                1:1 (043/4B1/4B2)
  Shock (Gs): Operating                            10 (043/4B1)
                                                   ?? (4B2)
         Non-operating                             50 (043/4B1)
                                                   ?? (4B2)
  MTBF (Hours)                                     90,000 (043/4B1)
                                                   ?? (4B2)
  Controller Type                                  IDE
  DOS Disk Caching S/W Included                    No (9c)
  Auto Park                                        Yes
 Built-in SCSI Support                             No
 Supports TMC-850IBM Internal SCSI Adapter         Yes (040)/No (043/4B1/4B2)
                                                   (4g)
  Number of Int. SCSI devices supported            1 (# of open bays)
 Supports TMC-850IBM External SCSI Adapter         Yes (using 3510 External
                                                   SCSI Storage Enclosure)
 Supports 16-Bit Fast SCSI Adapter                 Yes (using 3510 External
                                                   SCSI Storage Enclosure)

 TAPE STORAGE
 Internal Tape Drive Support                       Yes (040)
                                                   No (043/4B1/4B2)
  3.5" Internal Tape Backup Unit (4i)              Yes
  5.25" 4mm SCSI Tape Drive                        No
  5.25" 8mm SCSI Tape Drive                        No
 External Tape Drive Support                       No


ΓòÉΓòÉΓòÉ 9.5.1.4. PS/2 Model 35-040/043/4B1/4B2: Expansion/Operating Systems ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 35-040/043/4B1/4B2 header.

 DESCRIPTION                                       8535-040/043/4B1/4B2
 EXPANSION SLOTS
 Total Adapter Slots                               3
  # of Long/Short Slots                            3/0
  # of 8/16/32-bit Slots                           0/3/0 (3a)
  # of Slots with Video Extension                  0
 Available Slots                                   3
  Maximum RAM with Available Slots                 16MB
  Maximum RAM Using No Slots                       16MB (8q)
  # of Slots Required for Maximum                  0
  # of Slots Available after Maximum               3

 OPERATING SYSTEM SUPPORT
 IBM PC/DOS                                        3.3 or later (6v)
 IBM OS/2                                          1.30.1 or later
 IBM AIX PS/2                                      Planned (2v)


ΓòÉΓòÉΓòÉ 9.5.1.5. PS/2 Model 35-040/043/4B1/4B2: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 35-040/043/4B1/4B2 header.

 DESCRIPTION                                       8535-040/043/4B1/4B2
 KEYBOARD
 122-Key Host-Connected Keyboard (6w)              Yes (8p)
 106-Key Japanese Keyboard                         No
 101-Key Enhanced Keyboard                         Yes (8p)
 84-Key Keyboard                                   Yes (8p)
 LED Indicators on Keyboard                        Yes
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         10 (3 meters)

 SECURITY
 C2 Security Enabled                               No
 Keylock-Locks Cover                               Yes
     Locks Keyboard                                No
 Keyboard Password                                 Yes
 Power-on Password                                 Yes
  Network Server Mode                              Yes


ΓòÉΓòÉΓòÉ 9.5.1.6. PS/2 Model 35-040/043/4B1/4B2: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 35-040/043/4B1/4B2 header.

 DESCRIPTION                                       8535-040/043/4B1/4B2
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
  Orientation:                                     Horizontal (6x)
  Vertical-Mount Floor Stand                       Optional
 Dimensions: Height                                4.5"
        Width                                      14.2"
        Depth                                      15.6"
 Weight (lbs):                                     22.4 (040)
                                                   23.8 (043/4B1/4B2)

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              118
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-137 VAC                          3.5
        180-265 VAC                                1.75
 Operating Range: Temperature                      50-95┬░ F
           Rel. Humidity                           8-80%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  130 (040)
                                                   144 (043/4B1/4B2)
 Noise (Avg dB, Operating, 1m)                     ??
    Classification                                 ??

 MISCELLANEOUS
 FCC Classification                                B
 UL Approval                                       UL 1950, 1st Edition
 CSA Approval                                      CSA22.2 No. 220-M1986
 Warranty Period                                   1 Year
  International Traveler's Warranty Service        No
  Countries Warranty Valid In                      USA/Canada
  Upgrade Carry-In Warranty to On-Site             $40
 BIOS Model/Submodel/Revision                      F8/19/05
 Announcement Letter Numbers                       NDD91-???, 191-??? (040/043)
                                                   NDD92-169, 192-??? (4B1/4B2)
 Date Announced                                    06/11/91 (040/043)
                                                   03/24/92 (4B1/4B2)
 Date Withdrawn                                    01/22/93


ΓòÉΓòÉΓòÉ 9.5.2. PS/2 Model 35(LS)-14X/24X Tech Specs ΓòÉΓòÉΓòÉ

Because the Model 35 LS models are identical, except for a choice of Token-Ring
(Model 8535-24X) or Ethernet (Model 8535-14X) network adapter, they are
represented by the one document, to follow.  Unless otherwise indicated, all
information applies equally to both LS models.

What differentiates the LS models from the SX models is the presence of a
network adapter in one of the adapter slots (which reduces the number of
available slots), and the lack of any diskette or hard disk drives (which may
be added later) in the system.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Jump directly to the PS/2 Model 35 386SX Systems header.


ΓòÉΓòÉΓòÉ 9.5.2.1. PS/2 Model 35-14X/24X: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 35-14X/24X header.

 DESCRIPTION                                       8535-14X/24X
 ARCHITECTURE
 Bus Type                                          AT (ISA)
 Microprocessor                                    Intel 386SX
 Clock Speed                                       20
 Instruction Set                                   32 bit
 Addressing                                        24 Bit
 I/O Channel Width                                 16 bit
 Interrupt Levels                                  16
  Type (ISA)                                       Edge-triggered,
                                                   Non-shareable
 Maximum Bus Data Transfer Rate
  ISA Burst Transfer Mode                          8 Mbytes/second
 Bus Data/Address Parity Checking
  ISA Bus                                          No
 DMA Channels                                      7
  DMA Burst Mode Supported                         No
 Bus Masters Supported                             No
 Upgradeable Processor Complex                     No
 Matched Memory Cycle                              No
 Page Memory Logic                                 No (7a)

 MEMORY
 Standard (Motherboard)                            2MB (2w)
 Maximum (Motherboard)                             16MB
 Maximum (System)                                  16MB (2r)
 Maximum # of Motherboard SIMM Sockets             3
 # of Motherboard SIMM Sockets Available           2
 Standard Memory Speed (ns)                        85
 Memory Type                                       DRAM
 Memory Cache Controller                           No
 Wait States: Motherboard                          0-2
        Adapter                                    N/A
 Memory Used: Motherboard                          1/2/4/8MB SIMMs (70-85ns)


ΓòÉΓòÉΓòÉ 9.5.2.2. PS/2 Model 35-14X/24X: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 35-14X/24X header.

 DESCRIPTION                                       8535-14X/24X
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 BIOS Extensions Stored on Disk                    No
 Setup & Diags Stored on Disk                      No
 Optional Math Coprocessor                         387SX (6e)
  Coprocessor Speed                                20MHz
 Standard Graphics                                 VGA+
  8/16/32-bit Controller                           16
  132-Column Text Mode                             Yes
  Bus Master                                       No
  Video Memory (DRAM)                              256K
 Maximum Graphics                                  VGA+
 RS232C Serial Ports                               1
  UART Chip Used                                   NS 16450-compatible
  Maximum Speed (bits/second)                      ???
  FIFO Mode Enabled                                N/A
  Maximum Ports Supported                          ???
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Maximum Ports Supported                          ???
 Token-Ring Adapters                               1 (6n) (24X)
  Data Transfer Rate (Mbps)                        16/4
  Remote IPL feature installed                     Yes
 Ethernet Adapters                                 1 (6n) (14X)
  Data Transfer Rate (Mbps)                        10
  Wiring Type                                      10Base-T
  Remote IPL feature installed                     Yes
 External SCSI port                                No
 Diskette Drive Support                            Yes
 Hard Disk Drive Support                           Yes
 CMOS Clock                                        Yes
  CMOS Battery Life (years)                        5
  Replaceable                                      Yes


ΓòÉΓòÉΓòÉ 9.5.2.3. PS/2 Model 35-14X/24X: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 35-14X/24X header.

 DESCRIPTION                                       8535-14X/24X
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     2
  # of 3.5"/5.25" Bays                             0/2 (6q)(6r)
  # of 3.5"/5.25" Bays Available                   0/2
 Selectable Boot                                   Yes
  Bootable Physical Drives                         All (if installed)
 Diskette Drives Standard                          0
 Optional Diskette Drives
  5.25" 360K                                       Optional (c)(g)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (i)
   Media Sensing                                   No
  3.5" 720K                                        N/A (y)
  3.5" 1.44MB                                      Optional (i)
   Media Sensing                                   Yes
  3.5" 2.88MB                                      Optional (i)
   Media Sensing                                   Yes
  Internal Drives Supported                        2
  External Drives Supported                        1
  Maximum # Diskette Drives                        3
   Diskette Caching                                No
 Hard Disk Drives Standard                         0
  Maximum # of Hard Disk Drives                    1
  Drive Type                                       N/A
  Encoding Method                                  RLL
  Drive Form Factor                                3.5"
  Optional HD Sizes Available: (4p)                40MB
                                                   80MB
  Maximum Internal HD Drive Capacity               80MB (3z)(5k)
  Avg Access Rate (ms): 40MB                       17
             80MB                                  17
  Controller Type                                  IDE
  DOS Disk Caching S/W Included                    No (9c)
 Built-in SCSI Support                             No
 Supports TMC-850IBM Internal SCSI Adapter         Yes (4g)
  Number of Int. SCSI devices supported            2 (# of open bays)
 Supports TMC-850IBM External SCSI Adapter         Yes (using 3510 External
                                                   SCSI Storage Enclosure)
 Supports 16-Bit Fast SCSI Adapter                 Yes (using 3510 External
                                                   SCSI Storage Enclosure)
   SCSI Rewritable Optical Drives                  Yes

 TAPE STORAGE
 Internal Tape Drive Support                       Yes
  3.5" Internal Tape Backup Unit (4i)              Yes
  5.25" 4mm SCSI Tape Drive                        No
  5.25" 8mm SCSI Tape Drive                        No
 External Tape Drive Support                       No


ΓòÉΓòÉΓòÉ 9.5.2.4. PS/2 Model 35-14X/24X: Expansion/Operating Systems ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 35-14X/24X header.

 DESCRIPTION                                       8535-14X/24X
 EXPANSION SLOTS
 Total Adapter Slots                               3
  # of Long/Short Slots                            3/0
  # of 8/16/32-bit Slots                           0/3/0 (3a)
  # of Slots with Video Extension                  0
  # of Slots with Network Adapter                  1
 Available Slots                                   2 (7d)
  Maximum RAM with Available Slots                 16MB
  Maximum RAM Using No Slots                       16MB (8q)
  # of Slots Required for Maximum                  0
  # of Slots Available after Maximum               2

 OPERATING SYSTEM SUPPORT
 IBM PC/DOS                                        3.3 or later (6v)
 IBM OS/2                                          1.30.1 or later
 IBM AIX PS/2                                      Planned (2v)


ΓòÉΓòÉΓòÉ 9.5.2.5. PS/2 Model 35-14X/24X: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 35-14X/24X header.

 DESCRIPTION                                       8535-14X/24X
 KEYBOARD
 122-Key Host-Connected Keyboard (6w)              Yes (8p)
 106-Key Japanese Keyboard                         No
 101-Key Enhanced Keyboard                         Yes (8p)
 84-Key Keyboard                                   Yes (8p)
 LED Indicators on Keyboard                        Yes
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         10 (3 meters)

 SECURITY
 C2 Security Enabled                               No
 Keylock-Locks Cover                               Yes
     Locks Keyboard                                No
 Keyboard Password                                 Yes
 Power-on Password                                 Yes
  Network Server Mode                              Yes


ΓòÉΓòÉΓòÉ 9.5.2.6. PS/2 Model 35-14X/24X: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 35-14X/24X header.

 DESCRIPTION                                       8535-14X/24X
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
  Orientation:                                     Horizontal (6x)
 Dimensions: Height                                4.5"
        Width                                      14.2"
        Depth                                      15.6"
 Weight (lbs):                                     20.9

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              118
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-137 VAC                          3.5
        180-265 VAC                                1.75
 Operating Range: Temperature                      50-95┬░ F
           Rel. Humidity                           8-80%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  123
 Noise (Avg dB, Operating, 1m)                     ??
    Classification                                 ??

 MISCELLANEOUS
 FCC Classification                                B (14X)
                                                   B/A (24X) (4c)
 UL Approval                                       UL 1950, 1st Edition
 CSA Approval                                      CSA22.2 No. 220-M1986
 Warranty Period                                   1 Year
  International Traveler's Warranty Service        No
  Countries Warranty Valid In                      USA/Canada
  Upgrade Carry-In Warranty to On-Site             $40
 BIOS Model/Submodel/Revision                      F8/19/05
 Date Announced                                    06/11/91
 Date Withdrawn                                    04/23/93


ΓòÉΓòÉΓòÉ 9.6. PS/2 Model 40 386SX Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
386SX-based Model 40 systems.

Choose the section to which you wish to jump, below:

 20MHz Systems
 PS/2 Model 40-040/043/045

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 9.6.1. PS/2 Model 40-040/043/045 Tech Specs ΓòÉΓòÉΓòÉ

The PS/2 Models 40-040, 40-043, and 40-045 are identical except for the lack of
a hard disk drive in the -040, and the drive sizes in the -043 and -045.
Therefore all models will be covered by this one document. Differences will be
indicated by model number in parentheses.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Jump directly to the PS/2 Model 40 386SX Systems header.


ΓòÉΓòÉΓòÉ 9.6.1.1. PS/2 Model 40 Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 40 header.

 DESCRIPTION                                       8540-040/043/045
 ARCHITECTURE
 Bus Type                                          AT (ISA)
 Microprocessor                                    Intel 386SX
 Clock Speed                                       20
 Instruction Set                                   32 bit
 Addressing                                        24 Bit
 I/O Channel Width                                 16 bit
 Interrupt Levels                                  16
  Type (ISA)                                       Edge-triggered,
                                                   Non-shareable
 Maximum Bus Data Transfer Rate
  ISA Burst Transfer Mode                          8 Mbytes/second
 Bus Data/Address Parity Checking
  ISA Bus                                          No
 DMA Channels                                      7
  DMA Burst Mode Supported                         No
 Bus Masters Supported                             No
 Upgradeable Processor Complex                     No
 Matched Memory Cycle                              No
 Page Memory Logic                                 No (7a)

 MEMORY
 Standard (Motherboard)                            2MB (2w)
 Maximum (Motherboard)                             16MB
 Maximum (System)                                  16MB (2r)
 Total # of Motherboard SIMM Sockets               3
 # of Motherboard SIMM Sockets Available           2
 Standard Memory Speed (ns)                        85
 Memory Type                                       DRAM
 Memory Cache Controller                           No
 Wait States: Motherboard                          0-2
        Adapter                                    N/A (8q)
 Memory Used: Motherboard                          1/2/4/8MB SIMMs (70-85ns)


ΓòÉΓòÉΓòÉ 9.6.1.2. PS/2 Model 40 Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 40 header.

 DESCRIPTION                                       8540-040/043/045
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 BIOS Extensions Stored on Disk                    No
 Setup & Diags Stored on Disk                      No
 Optional Math Coprocessor                         387SX (6e)
  Coprocessor Speed                                20MHz
 Standard Graphics                                 VGA+
  8/16/32-bit Controller                           16
  132-Column Text Mode                             Yes
  Bus Master                                       No
  Video Memory (DRAM)                              256K
 Maximum Graphics                                  VGA+
 RS232C Serial Ports                               1
  UART Chip Used                                   NS 16450-compatible
   Maximum Speed (bits/second)                     ???
  FIFO Mode Enabled                                N/A
  Maximum Ports Supported                          ???
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Maximum Ports Supported                          ???
 Diskette Drive Support                            Yes
 Hard Disk Drive Support                           Yes
 External SCSI port                                No
 CMOS Clock                                        Yes
  CMOS Battery Life (years)                        5
  Replaceable                                      Yes


ΓòÉΓòÉΓòÉ 9.6.1.3. PS/2 Model 40 Disk/Tape Storage ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 40 header.

 DESCRIPTION                                       8540-040/043/045
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     4
  # of 3.5"/5.25" Bays                             1/3 (6r)(6s)
  # of 3.5"/5.25" Bays Available                   0/3 (040) (6s)
                                                   0/2 (043/045) (6s)
 Selectable Boot                                   Yes
  Bootable Physical Drives                         All (if installed)
 Diskette Drives Standard                          0 (040)
                                                   1x1.44MB (043/045)
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)(8v)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (5c)(i)
   Media Sensing                                   No
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      Optional (i)
   Media Sensing                                   Yes
  3.5" 2.88MB                                      Optional (i)
   Media Sensing                                   Yes
  Internal Drives Supported                        3
  External Drives Supported                        1
  Maximum # Diskette Drives                        4
   Diskette Caching                                No
 Hard Disk Drives Standard                         0 (040)
                                                   1 (043/045)
  Maximum # of Hard Disk Drives                    2
  Drive Type                                       N/A
  Encoding Method                                  RLL
  Drive Form Factor                                3.5"
  Optional HD Sizes Available: (4p)                40MB
                                                   80MB
  Maximum Internal HD Drive Capacity               160MB (040/045)
                                                   120MB (043)
  Avg Access Rate (ms): 40MB                       17
             80MB                                  17
  Sector Buffer Size                               32K (40MB/80MB)
  Data Transfer Rate (/second)                     1.35 MBytes (40MB/80MB)
  Rotational Speed (RPMs)                          3600 (40MB/80MB)
  # of Heads                                       2 (40MB)
                                                   4 (80MB)
  # of Platters                                    1 (40MB)
                                                   2 (80MB)
  Sectors per Track                                39 (40MB/80MB)
  # of Cylinders                                   1038 (40MB)
                                                   1021 (80MB)
  Interleave Factor                                1:1 (40MB/80MB)
  Shock (Gs): Operating                            10 (40MB/80MB)
         Non-operating                             50 (40MB/80MB)
  MTBF (Hours)                                     90,000 (40MB)
                                                   110,000 (80MB)
  Controller Type                                  IDE
  DOS Disk Caching S/W Included                    No (9c)
  Auto Park                                        Yes
 Built-in SCSI Support                             No
 Supports TMC-850IBM Internal SCSI Adapter         Yes (4g)
  Number of Int. SCSI devices supported            3 (040)/2 (043/045) (# of
                                                   open bays)
 Supports TMC-850IBM External SCSI Adapter         Yes (using 3510 External
                                                   SCSI Storage Enclosure)
 Supports 16-Bit Fast SCSI Adapter                 Yes (using 3510 External
                                                   SCSI Storage Enclosure)

 TAPE STORAGE
 Internal Tape Drive Support                       Yes
  3.5" Internal Tape Backup Unit (4i)              Yes (8u)
  5.25" 4mm SCSI Tape Drive                        No
  5.25" 8mm SCSI Tape Drive                        No
 External Tape Drive Support                       No


ΓòÉΓòÉΓòÉ 9.6.1.4. PS/2 Model 40 Expansion/Operating Systems ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

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 DESCRIPTION                                       8540-040/043/045
 EXPANSION SLOTS
 Total Adapter Slots                               5
  # of Long/Short Slots                            5/0
  # of 8/16/32-bit Slots                           0/5/0 (3a)
  # of Slots with Video Extension                  0
 Available Slots                                   5
  Maximum RAM with Available Slots                 16MB
  Maximum RAM Using No Slots                       16MB (8q)
  # of Slots Required for Maximum                  0
  # of Slots Available after Maximum               5

 OPERATING SYSTEM SUPPORT
 IBM PC/DOS                                        3.3 or later (6v)
 IBM OS/2                                          1.30.1 or later
 IBM AIX PS/2                                      Planned


ΓòÉΓòÉΓòÉ 9.6.1.5. PS/2 Model 40 Keyboard/Security ΓòÉΓòÉΓòÉ

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 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

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 DESCRIPTION                                       8540-040/043/045
 KEYBOARD
 122-Key Host-Connected Keyboard (6w)              Yes (8p)
 106-Key Japanese Keyboard                         No
 101-Key Enhanced Keyboard                         Yes (8p)
 84-Key Keyboard                                   Yes (8p)
 LED Indicators on Keyboard                        Yes
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         10 (3 meters)

 SECURITY
 C2 Security Enabled                               No
 Keylock-Locks Cover                               Yes
     Locks Keyboard                                No
 Keyboard Password                                 Yes
 Power-on Password                                 Yes
  Network Server Mode                              Yes


ΓòÉΓòÉΓòÉ 9.6.1.6. PS/2 Model 40 Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

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 DESCRIPTION                                       8540-040/043/045
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
  Orientation:                                     Horizontal/vertical
                                                   (mounting stand included)
 Dimensions: Height                                6.7"
        Width                                      17.3"
        Depth                                      15.5"
 Weight (lbs):                                     26.3 (040)
                                                   27.8 (043/045)

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              197
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Manual
 Amperage at:  90-137 VAC                          6.0
        180-265 VAC                                3.0
 Operating Range: Temperature                      50-95┬░ F
           Rel. Humidity                           8-80%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  90
 Noise (Avg dB, Operating, 1m)                     ??
    Classification                                 3D

 MISCELLANEOUS
 FCC Classification                                B/A (4c)
 UL Approval                                       UL 1950, 1st Edition
 CSA Approval                                      CSA22.2 No. 220-M1986
 Warranty Period                                   1 Year
  International Traveler's Warranty Service        No
  Countries Warranty Valid In                      USA/Canada
  Upgrade Carry-In Warranty to On-Site             $40
 BIOS Model/Submodel/Revision                      F8/19/05
 Announcement Letter Numbers                       NDD91-226, 191-???
 Date Announced                                    06/11/91
 Date Withdrawn                                    12/22/92


ΓòÉΓòÉΓòÉ 9.7. PS/2 Model L40 386SX Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
386SX-based Model L40 laptop systems.

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 20MHz Systems
 PS/2 Model L40-044

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ΓòÉΓòÉΓòÉ 9.7.1. PS/2 Model L40 Tech Specs ΓòÉΓòÉΓòÉ

Note:  This model has been withdrawn from marketing.

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Jump directly to the PS/2 Model L40 386SX Systems header.


ΓòÉΓòÉΓòÉ 9.7.1.1. PS/2 Model L40: Architecture/Memory ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

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 DESCRIPTION                                       8543-044
 ARCHITECTURE
 Bus Type                                          AT (ISA)
 Microprocessor                                    Intel 386SX
 Clock Speed                                       20/10/5 MHz (6g)
 Speed Setting Switch/Software                     Both
 Instruction Set                                   32 bit
 Addressing                                        24 Bit
 I/O Channel Width                                 16 bit
 Interrupt Levels                                  16
  Type (ISA)                                       Edge-triggered,
                                                   Non-shareable
 Maximum Bus Data Transfer Rate
  ISA Burst Transfer Mode                          8 Mbytes/second
 Bus Data/Address Parity Checking
  ISA Bus                                          No
 DMA Channels                                      7
  DMA Burst Mode Supported                         No
 Bus Masters Supported                             No
 Upgradeable Processor Complex                     No
 Matched Memory Cycle                              No
 Page Memory Logic                                 No (7a)

 MEMORY
 Standard (Motherboard)                            2MB
 Maximum (Motherboard)                             18MB (6c)(6d)
 Maximum (System)                                  18MB (6c)(6d)
 Total # of Motherboard SIMM Sockets               2  (7c)
 # of Motherboard SIMM Sockets Available           2  (7c)
 Memory Chip Speed (ns)                            80
 Memory Chip Type                                  CMOS (6m)
 Memory Cache Controller                           No
 Access to SIMM Sockets                            Beneath Keyboard
 Wait States                                       0-2
 Memory Used: Motherboard                          2MB/4MB/8MB SIMMs (8q)


ΓòÉΓòÉΓòÉ 9.7.1.2. PS/2 Model L40: Standard Features ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

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 DESCRIPTION                                       8543-044
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 Suspend/Resume Feature                            Yes
 Setup/Power Management S/W                        Yes
 LCD Indicators                                    Yes (6f)
 Opt. Math Coprocessor                             Intel 387SX (6e)
  Coprocessor Speed                                20MHz
  Access to Math Coprocessor                       Beneath Keyboard
 Standard Graphics                                 VGA
  8/16/32-bit Controller                           8
  Bus Master                                       No
  Video Memory (DRAM)                              256K
 Built-in Display                                  Yes
  Type                                             LCD
  Dimensions (Diag/H x W)                          10"/6x8"
  # of Grayshades                                  32
  Backlit/Sidelit                                  Side
  Supertwisted                                     Yes
  Contrast Ratio                                   12:1
  Detachable                                       No
  External monitor port                            Yes
   External Display Disables LCD                   Yes
 Maximum Graphics                                  VGA
 RS232C Serial Ports                               1
  UART Chip Used                                   NS16450
   Maximum Speed (bits/second)                     19,200
  FIFO Mode Enabled                                No
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          2 (5x)
 Internal Modem                                    Optional (5x)
  Hayes-compatible                                 Yes
  Asynchronous/Synchronous                         Yes/Yes
  FAX capable                                      Yes
   Group III compatible                            Yes
   FAX software included                           Yes
   Send/Receive FAXes                              Yes/Yes
  Maximum speed (bps): Data                        2400
              FAX                                  9600
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          1
 External SCSI Port                                No
 CMOS Clock                                        Yes
  CMOS Battery Life (years)                        5
  Replaceable                                      Yes
 Power Source
  Battery/AC Adapter                               Both
  AC Adapter                                       Yes
  Quick Charger                                    Optional
  Car Cigarette Lighter Adapter                    Optional
  Number of Batteries Supplied                     1
  Battery Type                                     Nickel Cadmium (NiCad)
  Length of Battery Charge                         Approx. 3 hrs (9i)
  Non-Disruptive Battery Exchange                  Yes


ΓòÉΓòÉΓòÉ 9.7.1.3. PS/2 Model L40: Disk/Tape Storage ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

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 DESCRIPTION                                       8543-044
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     2
  # of 2.5"/3.5"/5.25" Bays                        1/1/0
  # of 2.5"/3.5"/5.25" Bays Avail.                 0/0/0
 Diskette Drives Standard                          1x1.44MB
   Media Sensing                                   No
 Optional Diskette Drives                          No
  Internal Drives Supported                        1
  External Drives Supported                        0
  Maximum # Diskette Drives                        1
   Diskette Caching                                No
 Hard Disk Drives Standard                         1x60MB
  Maximum # of Hard Disk Drives                    1
  Drive Type                                       N/A
  Encoding Method                                  MFM
  Drive Form Factor                                2.5"
  Optional HD Drive Sizes Available                N/A
  Maximum Internal HD Drive Capacity               60MB
  Average Access Rate (ms)                         19
  Data Transfer Rate (/second)                     1.5 MBytes
  Rotational Speed (RPMs)                          3600
  # of Heads                                       4
  # of Platters                                    ?
  Sectors per Track                                ??
  # of Cylinders                                   820
  Interleave Factor                                1:1
  Shock (Gs): Operating                            ??
         Non-operating                             100
  Controller/Connector Type                        ESDI/Direct Bus Attach (DBA)
  Disk Caching S/W Included                        Yes
   Auto Park                                       Yes

 TAPE STORAGE
 Internal Tape Drive Support                       No
 External Tape Drive Support                       No


ΓòÉΓòÉΓòÉ 9.7.1.4. PS/2 Model L40: Expansion/Operating Systems ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

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 DESCRIPTION                                       8543-044
 BUILT-IN EXPANSION SLOTS
 Total "Adapter" Slots                             1 (5x)(5y)
 Available Slots                                   1 (5x)
  Maximum RAM with Available Slots                 18MB
  # of Slots Required for Maximum                  0
 # of Slots Avail after Maximum                    1 (5x)

 EXTERNAL EXPANSION SUPPORT
 IBM 3550 Model 1 Expansion Unit                   No
 IBM 3550 Model 2 Expansion Unit                   No
 IBM Communications Cartridge                      No
 IBM Communications Cartridge I                    Yes
  # of Drive Bays Provided                         0
  # of Adapter Slots Provided                      1 (5y)
   # of Long/Short Slots                           0/1
   # of 8/16/32-bit Slots                          0/1/0 (3a)
   # of Slots with Video Extension                 0
  Available Slots                                  1
 IBM Communications Cartridge II                   No
 IBM Expansion Cartridge                           No

 OPERATING SYSTEM SUPPORT
 IBM PC/DOS                                        3.3 or later
 IBM OS/2                                          1.30.1 or later
 IBM AIX PS/2                                      No


ΓòÉΓòÉΓòÉ 9.7.1.5. PS/2 Model L40: Keyboard/Security ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model L40 header.

 DESCRIPTION                                       8543-044
 KEYBOARD
 101-Key Enhanced Keyboard                         Yes (6b)
 84-Key Keyboard                                   Yes (6b)
 78-Key Keyboard                                   No
 External Keyboard Supported                       No
 LED Indicators on Keyboard                        No
 Keyboard Slope                                    5┬░
 Trackball Integrated into Keyboard                No
 Pointing stick integrated into keybd              No
 Fast Keyboard Speed Setting                       Yes
 Quiet Keyboard Operation Mode                     Yes
 Keyboard Cord Length (ft)                         N/A
  Keyboard detachable                              No

 SECURITY
 C2 Security Enabled                               No
 Keylock-Locks Cover                               No
     Locks Keyboard                                No
 Keyboard Password                                 Yes
 Power-on Password                                 Yes
  Network Server Mode                              Yes


ΓòÉΓòÉΓòÉ 9.7.1.6. PS/2 Model L40: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

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 DESCRIPTION                                       8543-044
 PHYSICAL FACTORS
 Footprint Type                                    Laptop
 Dimensions: Height                                2.1"
        Width                                      12.8"
        Depth                                      10.7"
 Weight (lbs): With Battery                        7.7
 Carrying Case                                     Included
  Leather/Nylon                                    Leather

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              N/A
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-265 VAC                          2.7
 Operating Range: Temperature                      41-95┬░ F
           Rel. Humidity                           5-95%
 Maximum Operating Altitude(ft)                    8000
 Heat (BTUs/Hour)                                  136
 Noise (Avg dB, Operating, 1m)                     32
    Classification                                 ??

 MISCELLANEOUS
 FCC Classification                                B
 Warranty Period                                   1 Year
  International Traveler's Warranty Service        Yes
  Countries Warranty Valid In                      80+
 BIOS Model/Submodel/Revision                      F8/23/01
 Announcement Letter Numbers                       NDD91-091
 Date Announced                                    03/26/91
 Date Withdrawn                                    07/21/92


ΓòÉΓòÉΓòÉ 9.8. PS/2 Model N45 386SL Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
386SL-based Model N45 notebook systems. Note.The PS/2 Models N45-065 and
N45-067 are identical except for the hard disk drive used.  Therefore both
models will be covered by this one document. Differences will be indicated by
model number in parentheses.

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 25MHz Systems
 PS/2 Model N45-065/067

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ΓòÉΓòÉΓòÉ 9.8.1. PS/2 Model N45-065/067 Tech Specs ΓòÉΓòÉΓòÉ

Note:  These models have been withdrawn from marketing.

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Jump directly to the PS/2 Model N45 386SL Systems header.


ΓòÉΓòÉΓòÉ 9.8.1.1. PS/2 Model N45: Architecture/Memory ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

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 DESCRIPTION                                       2614-065/067
 ARCHITECTURE
 Bus Type                                          AT (ISA)
 Microprocessor                                    Intel 386SL
 Clock Speed                                       25.0/6.25 MHz (Switchable)
 Speed Setting Switch/Software                     Software
 Instruction Set                                   32 bit
 Addressing                                        24 Bit
 I/O Channel Width                                 16 bit
 Interrupt Levels                                  16
  Type (ISA)                                       Edge-triggered,
                                                   Non-shareable
 Maximum Bus Data Transfer Rate
  ISA Burst Transfer Mode                          8 Mbytes/second
 Bus Data/Address Parity Checking
  ISA Bus                                          No
 DMA Channels                                      7
  DMA Burst Mode Supported                         No
 Bus Masters Supported                             No
 Upgradeable Processor Complex                     No
 Matched Memory Cycle                              N/A (5i)
 Page Memory Logic                                 No (7a)

 MEMORY
 Standard (Motherboard)                            2MB
 Maximum (Motherboard)                             8MB (7c)
 Maximum (System)                                  8MB (7c)
 Total # of Motherboard Memory Sockets             3
 # of Motherboard Memory Sockets Available         3
 Memory Chip Speed (ns)                            80
 Memory Chip Type                                  DRAM
 Memory Cache Controller                           Yes
 Internal/External Cache                           External
  Cache Size                                       64K
  Cache Memory Type                                SRAM
 Wait States: Motherboard                          0-2
 Memory Used: Motherboard                          2MB modules (Not SIMMs)


ΓòÉΓòÉΓòÉ 9.8.1.2. PS/2 Model N45: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model N45 header.

 DESCRIPTION                                       2614-065/067
 STANDARD FEATURES
 Bootstrap ROM Size                                128K
 Flash ROM Size                                    128K
 ROM Shadowing                                     ????
 Rest/Resume Feature                               Yes
 Sleep Mode Supported                              Yes
 Setup/Power Management S/W                        Yes
 Speed Setting Switch/Software                     No
 BIOS Extensions Stored on Disk                    No
 Setup & Diags Stored on Disk                      No
 Setup & Diags Stored in EEPROM                    Yes
 LCD Indicators                                    Yes (w)
 Opt. Math Coprocessor                             387SX/387SL
  Coprocessor Speed                                25MHz
 Standard Graphics                                 VGA
  8/16/32-bit Controller                           ???
  Bus Master                                       No
  Video Memory (DRAM)                              256K
 Built-in Display                                  Yes
  Type                                             LCD
  Dimensions (Diag/H x W)                          9.5"/?x?"
  # of Gray Shades                                 32
  Backlit/Sidelit                                  Back
  Supertwisted                                     Yes
  Contrast Ratio                                   12:1
  Detachable                                       No
  Screen Tilt                                      ???┬░
  Reverse Video Switch                             No
  Large Pointer Option                             No
  External monitor port                            Yes
   External Display Disables LCD                   Yes
 Maximum Graphics                                  VGA
 Audio Volume Control                              Yes
 RS232C Serial Ports                               1
  UART Chip Used                                   ?????
   Maximum Speed (bits/second)                     19,200
  FIFO Mode Enabled                                ???
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          1
 Internal Modem                                    Optional (f)
  Hayes-compatible                                 Yes
  Asynchronous/Synchronous                         Yes/Yes
  FAX capable                                      Yes/No (f)
   Group III compatible                            Yes
   FAX software included                           Yes
   Send/Receive FAXes                              Yes/Yes
  Maximum speed (bps): Data                        2400
              FAX                                  9600
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   ???
  Supports DMA Data Transfer                       No
  Maximum Data Transfer Rate                       14 Mbits/sec
  Maximum Ports Supported                          1
 External Keyboard Port                            Yes
 CMOS Clock                                        Yes
  CMOS Battery Life (years)                        5
  Replaceable                                      Yes
 Power Source
  Battery/AC Adapter                               Both
  AC Adapter                                       Yes
  Quick Charger                                    Optional
  Car Cigarette Lighter Adapter                    No
  Number of Batteries Supplied                     1
  Battery Type (Standard)                          Nickel Cadmium (NiCad)
  Length of Battery Charge: NiCad                  Approx. 3 hrs (9i)
  Battery Charges While on A/C                     Yes
   Time to Recharge Battery                        Approx. 3 hrs
  Battery Discharge Software Included              ???
  Non-Disruptive Battery Exchange                  Yes


ΓòÉΓòÉΓòÉ 9.8.1.3. PS/2 Model N45: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model N45 header.

 DESCRIPTION                                       2614-065/067
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     2
  # of 2.5"/3.5"/5.25" Bays                        1/1/0
  # of 2.5"/3.5"/5.25" Bays Avail.                 0/0/0
 Diskette Drives Standard                          1x1.44MB
   Media Sensing                                   No
 Optional Diskette Drives                          No
  Internal Drives Supported                        1
  External Drives Supported                        0
  Maximum # Diskette Drives                        1
   Diskette Caching                                No
 Hard Disk Drives Standard                         1x80MB (065)
                                                   1x120MB (067)
  Maximum # of Hard Disk Drives                    1
  Drive Type                                       N/A
  Encoding Method                                  ???
  Drive Form Factor                                2.5"
  Optional HD Drive Sizes Available                N/A
  Maximum Internal HD Drive Capacity               1x80MB (065)
                                                   1x120MB (067)
  Average Access Rate (ms)                         19 (80MB)
                                                   17 (120MB)
  Hard Disk Data Transfer/Second
   Media to Buffer                                 1.5 MBytes (80MB)
                                                   2.25 MBytes (120MB)
   Buffer to System                                6.5 MBytes (80MB)
                                                   9.75 MBytes (120MB)
  Rotational Speed (RPMs)                          ????
  # of Heads                                       4
  # of Platters                                    ? (80MB)
                                                   ? (120MB)
  Sectors per Track                                38 (80MB)
                                                   53 (120MB)
  # of Cylinders                                   1096 (80MB)
                                                   1120 (120MB)
  Interleave Factor                                1:1
  Shock (Gs): Operating                            ??
         Non-operating                             ???
  Controller/Connector Type                        ESDI/Direct Bus Attach (DBA)
  DOS Disk Caching S/W Included                    No
   Auto Park                                       Yes

 TAPE STORAGE
 Internal Tape Drive Support                       No
 External Tape Drive Support                       No


ΓòÉΓòÉΓòÉ 9.8.1.4. PS/2 Model N45: Expansion/Operating Systems ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model N45 header.

 DESCRIPTION                                       2614-033
 BUILT-IN EXPANSION SLOTS
 Total "Adapter" Slots                             1 (f)
 Available Slots                                   1
  Maximum RAM with Available Slots                 8MB
  # of Slots Required for Maximum                  0
 # of Slots Avail after Maximum                    1

 EXTERNAL EXPANSION SUPPORT
 IBM 3550 Model 1 Expansion Unit                   No
 IBM 3550 Model 2 Expansion Unit                   No
 IBM Communications Cartridge                      No
 IBM Communications Cartridge I                    No
 IBM Communications Cartridge II                   No
 IBM Expansion Cartridge                           No

 OPERATING SYSTEM SUPPORT
 IBM PC/DOS                                        5.0 or later
 IBM OS/2                                          2.0 or later
 IBM AIX PS/2                                      No


ΓòÉΓòÉΓòÉ 9.8.1.5. PS/2 Model N45: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model N45 header.

 DESCRIPTION                                       2614-065/067
 KEYBOARD
 101-Key Enhanced Keyboard                         No (k)
 84-Key Keyboard                                   Yes (k)
 78-Key Keyboard                                   No
 External Keyboard Supported                       Yes (p)
 LED Indicators on Keyboard                        Yes
 Keyboard Slope                                    None
 Trackball Integrated into Keyboard                No
 Pointing stick integrated into keybd              No
 Fast Keyboard Speed Setting                       ???
 Quiet Keyboard Operation Mode                     ???
 Keyboard Cord Length (ft)                         N/A
  Keyboard detachable                              No

 SECURITY
 C2 Security Enabled                               No
 Keylock-Locks Cover                               No
     Locks Keyboard                                No
 Keyboard Password                                 ???
 Power-on Password                                 Yes
  Network Server Mode                              ???


ΓòÉΓòÉΓòÉ 9.8.1.6. PS/2 Model N45: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model N45 header.

 DESCRIPTION                                       2614-065/067
 PHYSICAL FACTORS
 Footprint Type                                    Notebook
 Dimensions: Height                                1.8" (46.5mm)
        Width                                      12.4" (315mm)
        Depth                                      8.3" (210mm)
 Weight (lbs): With Battery                        6.9
 Carrying Case                                     Optional
  Leather/Nylon                                    Nylon

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              N/A
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-265 VAC                          ???
 Operating Range: Temperature                      41-95┬░ F
           Rel. Humidity                           10-80%
 Maximum Operating Altitude(ft)                    10,000
 Heat (BTUs/Hour)                                  ???
 Noise (Avg dB, Operating, 1m)                     ??
    Classification                                 3D

 MISCELLANEOUS
 FCC Classification                                B
 Warranty Period                                   1 Year
  International Traveler's Warranty Service        Yes
  Countries Warranty Valid In                      80+
 BIOS Model/Submodel/Revision                      ??/??/??
 BIOS Date                                         ??/??/??
 Announcement Letter Numbers                       NDD92-380
 Date Announced                                    07/21/92
 Date Withdrawn                                    01/26/93


ΓòÉΓòÉΓòÉ 10. PS/2 85xx MCA Systems: Features and Technical Specs ΓòÉΓòÉΓòÉ

The PS/2 85xx MCA Systems: Features and Technical Specifications lists the
standard and optional features, as well as technical product specifications, of
all Micro Channel architecture-based PS/2 systems using the 85xx designation
(e.g., 8570).  This reference may also be useful for comparing PS/2 features to
that of OEM systems.  There are more than 70 systems described in this area.

Choose the section to which you wish to jump, below:

 Micro Channel Desktop PS/2s (85xx)                Micro Channel Tower PS/2s
                                                   (85xx)
 PS/2 Model 50 286 Systems                         PS/2 Model 60 286 Systems
 PS/2 Model 55 386SX Systems                       PS/2 Model 65 386SX Systems
 PS/2 Model 56 386SX Systems                       PS/2 Model 80 386DX Systems
 PS/2 Model 56 386SLC Systems
 PS/2 Model 57 386SX Systems                       Micro Channel Laptop PS/2s
                                                   (85xx)
 PS/2 Model 57 386SLC Systems                      PS/2 Model N51 386SX Systems
 PS/2 Model M57 386SLC Systems                     PS/2 Model N51 386SLC
                                                   Systems
 PS/2 Model 70 386DX Systems                       PS/2 Model CL57 386SX
                                                   Systems
 PS/2 Model 70 486DX Systems
 PS/2 Model 90 486SX Systems                       Micro Channel Portable PS/2s
                                                   (85xx)
 PS/2 Model 90 486DX Systems                       PS/2 Model P70 386DX Systems
 PS/2 Model 90 486DX2 Systems                      PS/2 Model P75 486DX Systems

 Jump directly to the PS/2 Technical Information header.


ΓòÉΓòÉΓòÉ 10.1. PS/2 Model 50/50Z 286 Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
80286-based Model 50 and 50Z (Zero Wait State) systems.

Choose the section to which you wish to jump, below:

 Model 50 Systems                                  Model 50Z Systems
 PS/2 Model 50-021/R21                             PS/2 Model 50Z-031/061

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 10.1.1. PS/2 Model 50-021/R21 (8550) Tech Specs ΓòÉΓòÉΓòÉ

This section contains information about the 80286-based Model 50-021/R21
systems.  These models are identical except for the difference in keyboards.
Therefore the two models will be covered by this one document.  Differences
will be identified by the model number in parentheses.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Jump directly to the PS/2 Model 50 286 Systems header.


ΓòÉΓòÉΓòÉ 10.1.1.1. PS/2 Model 50-021/R21: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 50-021/R21 header.

 DESCRIPTION                                       8550-021/R21
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    80286
 Clock Speed                                       10 MHz
 Instruction Set                                   16 bit
 Addressing                                        24 bit
 I/O Channel Width                                 16/8 Bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
  DMA Burst Mode Supported                         Yes
 Bus Masters Supported                             15
 Upgradeable Processor Complex                     No

 MEMORY
 Standard (Motherboard)                            1MB
 Maximum (Motherboard)                             1MB
 Maximum (System)                                  16MB
 Total # of Motherboard SIMM Sockets               2
 # of Motherboard SIMM Sockets Available           0
 Memory Chip Speed (ns)                            150
 Memory Chip Type                                  DRAM
 Memory Cache Controller                           No
 Wait States: Motherboard                          1
        Adapter                                    0
 Memory Used: Motherboard                          512K SIMM


ΓòÉΓòÉΓòÉ 10.1.1.2. PS/2 Model 50-021/R21: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 50-021/R21 header.

 DESCRIPTION                                       8550-021/R21
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     No
 Optional Math Coprocessor                         80287
  Coprocessor Speed                                10MHz
 Standard Graphics                                 VGA
  8/16/32-bit Controller                           8
  Bus Master                                       No
  Video Memory (DRAM) Standard                     256K
 Maximum Graphics                                  8514/A (c)
  8/16/32-bit Controller                           16
  Bus Master                                       No
  Video Memory (DRAM) Standard                     256K
 RS232C Serial Ports                               1
  UART Chip Used                                   NS16550
  Maximum Speed (bits/second)                      19,200
  FIFO Mode Enabled                                No
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 Diskette Drive Support                            Yes


ΓòÉΓòÉΓòÉ 10.1.1.3. PS/2 Model 50-021/R21: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 50-021/R21 header.

 DESCRIPTION                                       8550-021/R21
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     3
  # of 3.5"/5.25" Bays                             3/0
  # of 3.5"/5.25" Bays Available                   1/0
 Diskette Drives Standard                          1x1.44MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (g)
   Media Sensing                                   No
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      Optional (i)(2j)
   Media Sensing                                   No
  3.5" 2.88MB                                      No
  Internal Drives Supported                        2
  External Drives Supported                        1
  Maximum # Diskette Drives                        3
 Hard Disk Drives Standard                         1x20MB
  Drive Type                                       30
  Drive Form Factor                                3.5"
  Maximum # of HD Drives                           1
   Optional HD Drive Sizes Available               60MB (2k)
  Maximum Internal HD Capacity                     20/60MB (2k)
   Average Access Rate (ms)                        80/27 (2k)
  Controller Type                                  ST-506
  Encoding Method                                  MFM
  Data Transfer Rate (/second)                     5.0/8.4 Mbits (2k)
  # of Heads                                       4/8
  # of Platters                                    2/4
  Sectors per Track                                17/26
  Cylinders                                        612/762
  Interleave Factor                                1:1
  Controller/Connector Type                        ST-506/36-pin Direct Bus
                                                   Attach (DBA) (20MB)
  Auto Park                                        No/Yes (2k)
 Maximum # of DD and HD Drives                     4

 TAPE STORAGE
 Internal Tape Drive Support
  3.5" Internal Tape Backup Unit                   Yes (2j)
  5.25" QIC SCSI Tape Drive                        No
  5.25" 4mm SCSI Tape Drive                        No
  5.25" 8mm SCSI Tape Drive                        No
 External Tape Drive Support
  5.25" 6157 Streaming Tape                        Models 001/002 (c)
  5.25" QIC SCSI Tape Drive                        Yes (4l)
  5.25" 4mm SCSI Tape Drive                        Yes (4l)
  5.25" 8mm SCSI Tape Drive                        Yes (4l)


ΓòÉΓòÉΓòÉ 10.1.1.4. PS/2 Model 50-021/R21: Expansion/Operating Systems ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 50-021/R21 header.

 DESCRIPTION                                       8550-021/R21
 EXPANSION
 Total Adapter Slots                               3
  # of Long/Short Slots                            3/0
  # of 8/16/32-bit Slots                           0/3/0 (3a)
  # of Slots with Video Extension                  1
 Available Slots                                   3
  Maximum RAM with Available Slots                 16MB
  Maximum RAM Using Only 1 Slot                    9MB (2l)
  # of Slots Required for Maximum                  2
 # of Slots Avail after Maximum                    1

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        3.3 or later
 IBM OS/2                                          1.0 through 1.30.2
 IBM AIX PS/2                                      No


ΓòÉΓòÉΓòÉ 10.1.1.5. PS/2 Model 50-021/R21: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 50-021/R21 header.

 DESCRIPTION                                       8550-021/R21
 KEYBOARD
 101-Key Enhanced Keyboard                         Yes (021)
 50-Key Bank Teller Keyboard                       Yes (R21)
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         6.0

 SECURITY
 C2 Security Enabled                               No
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Keyboard Password                                 Yes
 Power-on Password                                 Yes
  Network Server Mode                              Yes


ΓòÉΓòÉΓòÉ 10.1.1.6. PS/2 Model 50-021/R21: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 50-021/R21 header.

 DESCRIPTION                                       8550-021/R21
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
 Dimensions: Height                                5.5"
       Width                                       14.2"
       Depth                                       16.5"
 Weight (lbs)                                      21.0

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              94
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-137 VAC                          2.7
        180-265 VAC                                1.4
 Maximum Current Leakage (uA)                      <500
 Operating Range: Temperature                      60-90┬░ F
          Rel. Humidity                            8-80%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  494
 Noise Level Classification                        3D
  Noise (Avg dB, Operating, 1m)                    46

 MISCELLANEOUS
 FCC Classification                                B
 UL Approval                                       UL 478, 5th Edition
 Warranty Period                                   1 Year
 BIOS Model/Submodel/Revision                      FC/04/00
 Announcement Letter Numbers                       NDD87-264, 191-??? (021)
                                                   NDD87-600, 191-??? (R21)
 Date Announced                                    04/02/87 (021)
                                                   11/03/87 (R21)
 Date Withdrawn                                    05/03/89 (021)
                                                   ??/??/?? (R21)


ΓòÉΓòÉΓòÉ 10.1.2. PS/2 Model 50Z-031/061 Tech Specs ΓòÉΓòÉΓòÉ

The PS/2 Models 50-031 and 50-061 are identical except for the size of the hard
disk drive.  Therefore both models will be covered by this one document.
Differences will be indicated by model number in parentheses.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Jump directly to the PS/2 Model 50 286 Systems header.


ΓòÉΓòÉΓòÉ 10.1.2.1. PS/2 Model 50-031/061: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 50-031/061 header.

 DESCRIPTION                                       8550-031/061
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    80286
 Clock Speed                                       10 MHz
 Instruction Set                                   16 bit
 Addressing                                        24 bit
 I/O Channel Width                                 16/8 Bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
  DMA Burst Mode Supported                         Yes
 Bus Masters Supported                             15
 Upgradeable Processor Complex                     No

 MEMORY
 Standard (Motherboard)                            1MB
 Maximum (Motherboard)                             2MB
 Maximum (System)                                  16MB
 Total # of Sys Bd SIMM Sockets                    1
 # of Sys Bd SIMM Sockets Avail                    0
 Memory Chip Speed (ns)                            85
 Memory Chip Type                                  DRAM
 Memory Cache Controller                           No
 Wait States: Motherboard                          0
        Adapter                                    0-1 (2m)
 Memory Used: Motherboard                          1MB/2MB SIMM


ΓòÉΓòÉΓòÉ 10.1.2.2. PS/2 Model 50-031/061: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features.
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 50-031/061 header.

 DESCRIPTION                                       8550-031/061
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     No
 Optional Math Coprocessor                         80287
  Coprocessor Speed                                10MHz
 Standard Graphics                                 VGA
  8/16/32-bit Controller                           8
  Bus Master                                       No
  Video Memory (DRAM) Standard                     256K
 Maximum Graphics                                  8514/A (c)
  8/16/32-bit Controller                           16
  Bus Master                                       No
  Video Memory (DRAM) Maximum                      1MB
 RS232C Serial Ports                               1
  UART Chip Used                                   NS16550A
  Maximum Speed (bits/second)                      19,200
  FIFO Mode Enabled                                No
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes


ΓòÉΓòÉΓòÉ 10.1.2.3. PS/2 Model 50-031/061: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 50-031/061 header.

 DESCRIPTION                                       8550-031/061
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     3
  # of 3.5"/5.25" Bays                             3/0
  # of 3.5"/5.25" Bays Available                   1/0
 Diskette Drives Standard                          1x1.44MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (g)
   Media Sensing                                   No
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      Optional (i)(2j)
   Media Sensing                                   No
  3.5" 2.88MB                                      No
  Internal Drives Supported                        2
  External Drives Supported                        1
  Maximum # Diskette Drives                        3
 Hard Disk Drives Standard                         1x30MB (031)
                                                   1x60MB (061)
  Drive Type                                       33 (30MB)
                                                   N/A (60MB)
  Drive Form Factor                                3.5"
  Maximum # of HD Drives                           1
  Optional HD Drive Sizes Available                60MB (031) (2n)
                                                   N/A (061)
  Maximum Internal HD Capacity                     60MB
  Average Access Rate (ms)                         39 (30MB)
                                                   27 (60MB)
  Controller/Connector Type                        ST-506/36-pin Direct Bus
                                                   Attach (DBA) (30MB)
                                                   ESDI/36-pin Direct Bus
                                                   Attach (DBA) (60MB)
  Encoding Method                                  MFM
  Data Transfer Rate (Mb/second)                   7.5 (30MB)
                                                   8.4 (60MB)
  Rotational Speed (RPMs)                          3600
  # of Heads                                       4 (30MB)
                                                   6 (60MB)
  # of Platters                                    2 (30MB)
                                                   3 (60MB)
  Sectors per Track                                25 (30MB)
                                                   26 (60MB)
  Cylinders                                        615 (30MB)
                                                   762 (60MB)
  Interleave Factor                                1:1
  Controller/Connector Type                        ST-506/36-pin Direct Bus
                                                   Attach (DBA) (30MB)
                                                   ESDI/36-pin Direct Bus
                                                   Attach (DBA) (60MB)
  Auto Park                                        No (031)
                                                   Yes (061)
 Maximum # of DD and HD Drives                     4

 TAPE STORAGE
 Internal Tape Drive Support
  3.5" Internal Tape Backup Unit                   Yes (2j)
  5.25" QIC SCSI Tape Drive                        No
  5.25" 4mm SCSI Tape Drive                        No
  5.25" 8mm SCSI Tape Drive                        No
 External Tape Drive Support
  5.25" 6157 Streaming Tape                        Models 001/002 (c)
  5.25" QIC SCSI Tape Drive                        Yes (4l)
  5.25" 4mm SCSI Tape Drive                        Yes (4l)
  5.25" 8mm SCSI Tape Drive                        Yes (4l)


ΓòÉΓòÉΓòÉ 10.1.2.4. PS/2 Model 50-031/061: Expansion/Operating Systems ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 50-031/061 header.

 DESCRIPTION                                       8550-031/061
 EXPANSION
 Total Adapter Slots                               3
  # of Long/Short Slots                            3/0
  # of 8/16/32-bit Slots                           0/3/0 (3a)
  # of Slots with Video Extension                  1
 Available Slots                                   3
  Maximum RAM with Available Slots                 16MB
  Maximum RAM Using Only 1 Slot                    10MB (2p)
  # of Slots Required for Maximum                  2
 # of Slots Avail after Maximum                    1

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        3.3 or later
 IBM OS/2                                          1.0 through 1.30.2
 IBM AIX PS/2                                      No


ΓòÉΓòÉΓòÉ 10.1.2.5. PS/2 Model 50-031/061: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 50-031/061 header.

 DESCRIPTION                                       8550-031/061
 KEYBOARD
 101-Key Enhanced Keyboard                         Yes
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         6.0

 SECURITY
 C2 Security Enabled                               No
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Keyboard Password                                 Yes
 Power-on Password                                 Yes
  Network Server Mode                              Yes


ΓòÉΓòÉΓòÉ 10.1.2.6. PS/2 Model 50-031/061: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 50-031/061 header.

 DESCRIPTION                                       8550-031/061
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
 Dimensions: Height                                5.5"
       Width                                       14.1"
       Depth                                       16.5"
 Weight (lbs)                                      23.0

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              94
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-137 VAC                          2.7
        180-265 VAC                                1.4
 Maximum Current Leakage (uA)                      <500
 Operating Range: Temperature                      60-90┬░ F
          Rel. Humidity                            8-80%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  494
 Noise Level Classification                        3D
  Noise (Avg dB, Operating, 1m)                    46

 MISCELLANEOUS
 FCC Classification                                B
 Warranty Period                                   1 Year
 BIOS Model/Submodel/Revision                      FC/04/03
 Announcement Letter Numbers                       NDD88-265, 191-???
 Date Announced                                    06/07/88
 Date Withdrawn                                    07/23/91


ΓòÉΓòÉΓòÉ 10.2. PS/2 Model N51 386SX Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
386SX-based Model N51 notebook systems. Choose the section to which you wish to
jump, below:

 16MHz Systems
 PS/2 Model N51-033

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 10.2.1. PS/2 Model N51-033 Tech Specs ΓòÉΓòÉΓòÉ

Note:  This model has been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Jump directly to the PS/2 Model N51 386SX Systems header.


ΓòÉΓòÉΓòÉ 10.2.1.1. PS/2 Model N51-033: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model N51-033 header.

 DESCRIPTION                                       8551-033
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    Intel 386SX
 Clock Speed                                       16 MHz
 Instruction Set                                   32 bit
 Addressing                                        24 Bit
 I/O Channel Width                                 16 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
  DMA Burst Mode Supported                         Yes
 Bus Masters Supported                             15
 Upgradeable Processor Complex                     No
 Matched Memory Cycle                              No
 Page Memory Logic                                 No (7a)

 MEMORY
 Standard (Motherboard)                            2MB
 Maximum (Motherboard)                             10MB (9j)
 Maximum (System)                                  10MB (9j)
 Total # of Motherboard SIMM Sockets               1 (7c)
 # of Motherboard SIMM Sockets Available           1 (7c)
 Memory Chip Speed (ns)                            80
 Memory Chip Type                                  CMOS (9j)
 Memory Cache Controller                           No
 Access to Memory Sockets                          ???
 Wait States: Motherboard                          0-2
        Adapter                                    N/A
 Memory Used: Motherboard                          2MB/4MB/8MB SIMMs
           Adapter                                 N/A


ΓòÉΓòÉΓòÉ 10.2.1.2. PS/2 Model N51-033: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model N51-033 header.

 DESCRIPTION                                       8551-033
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 Suspend/Resume Feature                            Yes
 Sleep Mode Supported                              Yes
 Setup/Power Management S/W                        Yes
 Speed Setting Switch/Software                     No
 BIOS Extensions Stored on Disk                    Yes (9q)
 Setup & Diags Stored on Disk                      Yes (9q)
 LCD Indicators                                    Yes (9p)
 Optional Math Coprocessor                         No
  Coprocessor Speed                                N/A
 Standard Graphics                                 VGA
  8/16/32-bit Controller                           8
  Bus Master                                       No
  Video Memory (DRAM) Standard                     256K
 Built-in Display                                  Yes
  Type                                             LCD
  Dimensions (Diag/H x W)                          9.5"/?"x?"
  # of Gray Shades                                 32
  Backlit/Sidelit                                  Side
  Supertwisted                                     Yes
  Contrast Ratio                                   12:1
  Detachable                                       No
  Screen Tilt                                      ???┬░
  Reverse Video Switch                             Yes
  Large Pointer Option                             Yes
  External monitor port                            Yes
   External Display Disables LCD                   Yes
 Maximum Graphics                                  VGA
 Audio Volume Control                              Yes
 RS232C Serial Ports                               1
  UART Chip Used                                   ?????
   Maximum Speed (bits/second)                     19,200
  FIFO Mode Enabled                                No
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          2 (5x)
 Internal Modem                                    Optional (5x)
  Hayes-compatible                                 Yes
  Asynchronous/Synchronous                         Yes/Yes
  FAX capable                                      Yes
   Group III compatible                            Yes
   FAX software included                           Yes
   Send/Receive FAXes                              Yes/Yes
  Maximum speed (bps): Data                        2400
              FAX                                  9600
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          1
 CMOS Clock                                        Yes
  CMOS Battery Life (years)                        5
  Replaceable                                      Yes
 SCSI Port                                         No (4w)
 Power Source
  Battery - A/C                                    Both
  Non-Disruptive Battery Exchange                  Yes
  Battery Discharge Utility Included               Yes.
  Battery Charges While on A/C                     Yes
   Time to Recharge Battery                        1.5 hrs
  Battery Type (Standard)                          Nickel Cadmium (NiCad)
  Number of Batteries Supplied                     2
  Length of Battery Charge: NiCad                  Approx. 1.5-2.0 hrs each
                                                   (9i)
  Battery Type (Optional)                          Nickel Metal Hydride (NiMH)
  Length of Battery Charge: NiMH                   Approx. 1.8-2.3 hrs each
                                                   (9i)
  External Rechargeable Power Pack                 Yes
   Battery Type Used                               Nickel Metal Hydride (NiMH)
   Number of Batteries Included                    2
   Length of Power Pack Charge                     6 hrs
  A/C Adapter                                      Optional
  Quick Charger                                    Yes
  Car Cigarette Lighter Adapter                    Yes


ΓòÉΓòÉΓòÉ 10.2.1.3. PS/2 Model N51-033: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model N51-033 header.

 DESCRIPTION                                       8551-033
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     2
  # of 2.5"/3.5"/5.25" Bays                        1/1/0
  # of 2.5"/3.5"/5.25" Bays Available              0/0/0
 Diskette Drives Standard                          1x1.44MB
   Media Sensing                                   No
 Optional Diskette Drives                          No
  Internal Drives Supported                        1
  External Drives Supported                        0
  Maximum # Diskette Drives                        1
   Diskette Caching                                No
 Hard Disk Drives Standard                         1x40MB
  Maximum # of HD Drives                           1
  Drive Type                                       N/A
  Encoding Method                                  RLL
  Drive Form Factor                                2.5"
  Optional HD Drive Sizes Available                N/A
  Maximum Internal HD Capacity                     40MB
  Average Access Rate (ms)                         19
  Hard Disk Data Transfer/Second                   ??? MBytes
  Rotational Speed (RPMs)                          ????
  # of Heads                                       ?
  # of Platters                                    ?
  Sectors per Track                                ?
  # of Cylinders                                   ???
  Interleave Factor                                1:1
  Shock (Gs): Operating                            ??
         Non-operating                             ???
  Controller/Connector Type                        ST-506/36-pin Direct Bus
                                                   Attach (DBA)
  Auto Park                                        Yes

 TAPE STORAGE
 Internal Tape Drive Support                       No
 External Tape Drive Support                       No


ΓòÉΓòÉΓòÉ 10.2.1.4. PS/2 Model N51-033: Expansion/Operating Systems ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model N51-033 header.

 DESCRIPTION                                       8545-033
 BUILT-IN EXPANSION SLOTS
 Total "Adapter" Slots                             1 (5x)(9k)
 Available Slots                                   1 (5x)
  Maximum RAM with Available Slots                 18MB
  # of Slots Required for Maximum                  0
 # of Slots Avail after Maximum                    1 (5x)

 EXTERNAL EXPANSION SUPPORT
 SCSI Port                                         No (4w)
 IBM 3550 Model 1 Expansion Unit                   Yes (4w)
  # of Drive Bays Provided                         1
   5.25"/3.5" Bay                                  Yes
   Full-height/Half-height/Slimline size           Half-height
  # of Adapter Slots Provided                      2
   # of Long/Short Slots                           2/0
   # of 8/16/32-bit Slots                          0/2/0 (3a)
   # of Slots with Video Extension                 0
 IBM 3550 Model 2 Expansion Unit                   No
 IBM Communications Cartridge                      Yes
  # of Drive Bays Provided                         0
  # of Adapter Slots Provided                      1 (9k)
   # of Long/Short Slots                           0/1
   # of 8/16/32-bit Slots                          0/1/0 (3a)
   # of Slots with Video Extension                 0
  Available Slots                                  1
 IBM Communications Cartridge I                    No
 IBM Communications Cartridge II                   No
 IBM Expansion Cartridge                           No

 OPERATING SYSTEM SUPPORT
 IBM PC/DOS                                        3.3 or later
 IBM OS/2                                          1.30.1 or later
 IBM AIX PS/2                                      No


ΓòÉΓòÉΓòÉ 10.2.1.5. PS/2 Model N51-033: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model N51-033 header.

 DESCRIPTION                                       8551-033
 KEYBOARD
 101-Key Enhanced Keyboard                         Yes (9g)
 84-Key Keyboard                                   Yes (9g)
 78-Key Keyboard                                   No
 External Keyboard Supported                       No
 Keyboard Slope                                    5┬░
 Trackball Integrated into Keyboard                No
 Pointing stick integrated into keybd              No
 Fast Keyboard Speed Setting                       Yes
 Quiet Keyboard Operation Mode                     Yes
 Keyboard Cord Length (ft)                         N/A
  Keyboard detachable                              No

 SECURITY
 C2 Security Enabled                               No
 Keylock-Locks Cover                               No
     Locks Keyboard                                No
 Keyboard Password                                 Yes
 Power-on Password                                 Yes
  Network Server Mode                              Yes


ΓòÉΓòÉΓòÉ 10.2.1.6. PS/2 Model N51-033: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model N51-033 header.

 DESCRIPTION                                       8551-033
 PHYSICAL FACTORS
 Footprint Type                                    Notebook
 Dimensions: Height                                2.1" (43mm)
        Width                                      11.7" (297mm)
        Depth                                      8.3" (210mm)
 Weight (lbs): With Battery                        6.2
 Carrying Case                                     Optional
  Leather/Vinyl                                    Nylon

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              N/A
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-265 VAC                          ???
 Operating Range: Temperature                      41-95┬░ F
           Rel. Humidity                           5-95%
 Maximum Operating Altitude(ft)                    8000
 Heat (BTUs/Hour)                                  68.2
 Noise (Avg dB, Operating, 1m)                     54
    Classification                                 3D

 MISCELLANEOUS
 FCC Classification                                B
 Warranty Period                                   1 Year
  Int'l Traveler's Warranty Service                Yes
  Countries Warranty Valid In                      80+
 BIOS Model/Submodel/Revision                      F8/99/04
 BIOS Date                                         03/07/92
 Announcement Letter Numbers                       NDD92-170
 Date Announced                                    03/24/92
 Date Withdrawn                                    12/15/92


ΓòÉΓòÉΓòÉ 10.3. PS/2 Model N51 386SLC Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
386LC-based Model N51 notebook systems.

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 16MHz Systems
 PS/2 Model N51-025

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 10.3.1. PS/2 Model N51-025 Tech Specs ΓòÉΓòÉΓòÉ

Note:  This model has been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Jump directly to the PS/2 Model N51 386SLC Systems header.


ΓòÉΓòÉΓòÉ 10.3.1.1. PS/2 Model N51-025: Architecture/Memory ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model N51-025 header.

 DESCRIPTION                                       8551-025
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    IBM 386SLC (9l)
 Clock Speed                                       16 MHz
 Instruction Set                                   32 bit
 Addressing                                        24 Bit
 I/O Channel Width                                 16 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)1
  DMA Burst Mode Supported                         Yes
 Bus Masters Supported                             15
 Upgradeable Processor Complex                     No
 Matched Memory Cycle                              No
 Page Memory Logic                                 No (7a)

 MEMORY
 Standard (Motherboard)                            2MB
 Maximum (Motherboard)                             10MB (9j)
 Maximum (System)                                  10MB (9j)
 Total # of Motherboard SIMM Sockets               1 (7c)
 # of Motherboard SIMM Sockets Available           1 (7c)
 Memory Chip Speed (ns)                            80
 Memory Chip Type                                  CMOS (9j)
 Memory Cache Controller                           Yes (8k)
  Internal/External Cache                          Internal
 Standard Memory Cache Size                        8K
 Optional External Memory Cache                    N/A
 Access to Memory Sockets                          ???
 Wait States                                       0-2
 Memory Used: Motherboard                          2MB/4MB/8MB SIMMs (8q)


ΓòÉΓòÉΓòÉ 10.3.1.2. PS/2 Model N51-025: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model N51-025 header.

 DESCRIPTION                                       8551-025
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 Suspend/Resume Feature                            Yes
 Sleep Mode Supported                              Yes
 Setup/Power Management S/W                        Yes
 Speed Setting Switch/Software                     No
 BIOS Extensions Stored on Disk                    Yes (9q)
 Setup & Diags Stored on Disk                      Yes (9q)
 LCD Indicators                                    Yes (9p)
 Optional Math Coprocessor                         No
  Coprocessor Speed                                N/A
 Standard Graphics                                 VGA
  8/16/32-bit Controller                           8
  Bus Master                                       No
  Video Memory (DRAM) Standard                     256K
 Built-in Display                                  Yes
  Type                                             LCD
  Dimensions (Diag/H x W)                          9.5"/?"x?"
  # of Gray Shades                                 32
  Backlit/Sidelit                                  Side
  Supertwisted                                     Yes
  Contrast Ratio                                   12:1
  Detachable                                       No
  Screen Tilt                                      ???┬░
  Reverse Video Switch                             Yes
  Large Pointer Option                             Yes
  External monitor port                            Yes
   External Display Disables LCD                   Yes
 Maximum Graphics                                  VGA
 Audio Volume Control                              Yes
 RS232C Serial Ports                               1
  UART Chip Used                                   ?????
   Maximum Speed (bits/second)                     19,200
  FIFO Mode Enabled                                No
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          2 (5x)
 Internal Modem                                    Optional (5x)
  Hayes-compatible                                 Yes
  Asynchronous/Synchronous                         Yes/Yes
  FAX capable                                      Yes
   Group III compatible                            Yes
   FAX software included                           Yes
   Send/Receive FAXes                              Yes/Yes
  Maximum speed (bps): Data                        2400
              FAX                                  9600
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          1
 CMOS Clock                                        Yes
  CMOS Battery Life (years)                        5
  Replaceable                                      Yes
 SCSI Port                                         No (4w)
 Power Source
  Battery/AC Adapter                               Both
  AC Adapter                                       Optional
  Quick Charger                                    Yes
  Car Cigarette Lighter Adapter                    Yes
  Number of Batteries Supplied                     2
  Battery Type (Standard)                          Nickel Metal Hydride (NiMH)
  Battery Type (Optional)                          Nickel Cadmium (NiCad)
  Battery Charges While on AC                      Yes
   Time to Recharge Battery                        1.5 hrs
  Length of Battery Charge: NiMH                   Approx. 1.5-2.0 hrs each
                                                   (9i)
  Length of Battery Charge: NiCad                  Approx. 1.2-1.7 hrs each
                                                   (9i)
  External Rechargeable Power Pack                 Yes
   Battery Type Used                               Nickel Metal Hydride (NiMH)
   Number of Batteries Included                    2
   Length of Power Pack Charge                     5 hrs
  Battery Discharge Utility Included               Yes
  Non-Disruptive Battery Exchange                  Yes


ΓòÉΓòÉΓòÉ 10.3.1.3. PS/2 Model N51-025: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model N51-025 header.

 DESCRIPTION                                       8551-025
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     2
  # of 2.5"/3.5"/5.25" Bays                        1/1/0
  # of 2.5"/3.5"/5.25" Bays Available              0/0/0
 Diskette Drives Standard                          1x1.44MB
   Media Sensing                                   No
 Optional Diskette Drives                          No
  Internal Drives Supported                        1
  External Drives Supported                        0
  Maximum # Diskette Drives                        1
   Diskette Caching                                No
 Hard Disk Drives Standard                         1x80MB
  Maximum # of HD Drives                           1
  Drive Type                                       N/A
  Encoding Method                                  RLL
  Drive Form Factor                                2.5"
  Optional HD Drive Sizes Available                N/A
  Maximum Internal HD Capacity                     80MB
  Average Access Rate (ms)                         17
  Hard Disk Data Transfer/Second                   ??? MBytes
  Average Latency (ms)                             8.3 (80MB)
  Rotational Speed (RPMs)                          ????
  # of Heads                                       ?
  # of Platters                                    ?
  Sectors per Track                                ?
  # of Cylinders                                   ???
  Interleave Factor                                1:1
  Shock (Gs): Operating                            ??
         Non-operating                             ???
  Controller/Connector Type                        ESDI/36-pin Direct Bus
                                                   Attach (DBA)
  Auto Park                                        Yes

 TAPE STORAGE
 Internal Tape Drive Support                       No
 External Tape Drive Support                       No


ΓòÉΓòÉΓòÉ 10.3.1.4. PS/2 Model N51-025: Expansion/Operating Systems ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model N51-025 header.

 DESCRIPTION                                       8551-025
 BUILT-IN EXPANSION SLOTS
 Total "Adapter" Slots                             1 (5x)(9k)
 Available Slots                                   1 (5x)
  Maximum RAM with Available Slots                 10MB
  # of Slots Required for Maximum                  0
 # of Slots Avail after Maximum                    1 (5x)

 EXTERNAL EXPANSION SUPPORT
 IBM 3550 Model 1 Expansion Unit                   Yes (4w)
  # of Drive Bays Provided                         1
   5.25"/3.5" Bay                                  Yes
   Full-height/Half-height/Slimline size           Half-height
  # of Adapter Slots Provided                      2
   # of Long/Short Slots                           2/0
   # of 8/16/32-bit Slots                          0/2/0 (3a)
   # of Slots with Video Extension                 0
 IBM 3550 Model 2 Expansion Unit                   No
 IBM Communications Cartridge                      Yes
  # of Drive Bays Provided                         0
  # of Adapter Slots Provided                      1 (9k)
   # of Long/Short Slots                           0/1
   # of 8/16/32-bit Slots                          0/1/0 (3a)
   # of Slots with Video Extension                 0
  Available Slots                                  1
 IBM Communications Cartridge I                    No
 IBM Communications Cartridge II                   No
 IBM Expansion Cartridge                           No

 OPERATING SYSTEM SUPPORT
 IBM PC/DOS                                        3.3 or later
 IBM OS/2                                          1.30.2 or later
 IBM AIX PS/2                                      No


ΓòÉΓòÉΓòÉ 10.3.1.5. PS/2 Model N51-025: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model N51-025 header.

 DESCRIPTION                                       8551-025
 KEYBOARD
 101-Key Enhanced Keyboard                         Yes (9g)
 84-Key Keyboard                                   Yes (9g)
 78-Key Keyboard                                   No
 External Keyboard Supported                       No
 Keyboard Slope                                    5┬░
 Trackball Integrated into Keyboard                No
 Pointing stick integrated into keybd              No
 Fast Keyboard Speed Setting                       Yes
 Quiet Keyboard Operation Mode                     Yes
 Keyboard Cord Length (ft)                         N/A
  Keyboard detachable                              No

 SECURITY
 C2 Security Enabled                               No
 Keylock-Locks Cover                               No
     Locks Keyboard                                No
 Keyboard Password                                 Yes
 Power-on Password                                 Yes
  Network Server Mode                              Yes


ΓòÉΓòÉΓòÉ 10.3.1.6. PS/2 Model N51-025: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model N51-025 header.

 DESCRIPTION                                       8551-025
 PHYSICAL FACTORS
 Footprint Type                                    Notebook
 Dimensions: Height                                2.1" (43mm)
        Width                                      11.7" (297mm)
        Depth                                      8.3" (210mm)
 Weight (lbs): With Battery                        6.2
 Carrying Case                                     Optional
  Leather/Vinyl                                    Nylon

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              N/A
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-265 VAC                          ???
 Operating Range: Temperature                      41-95┬░ F
           Rel. Humidity                           5-95%
 Maximum Operating Altitude(ft)                    8000
 Heat (BTUs/Hour)                                  ???
 Noise (Avg dB, Operating, 1m)                     54
    Classification                                 3D

 MISCELLANEOUS
 FCC Classification                                B
 Warranty Period                                   1 Year
  Int'l Traveler's Warranty Service                Yes
  Countries Warranty Valid In                      80+
 BIOS Model/Submodel/Revision                      F8/5D/01
 BIOS Date                                         04/15/92
 Announcement Letter Numbers                       NDD92-171
 Date Announced                                    03/24/92
 Date Withdrawn                                    12/15/92


ΓòÉΓòÉΓòÉ 10.4. PS/2 Model 55 386SX Systems ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Model 55 SX Systems
 PS/2 Model 55-031/041/061/081/R31/R61
 PS/2 Model 55(LS)-LE0/LT0

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 10.4.1. PS/2 Model 55-031/041/061/081/R31/R61 Tech Specs ΓòÉΓòÉΓòÉ

This section contains information about the 386SX-based Model
55-031/041/061/081/R31/R61 systems.  These models are identical except for the
size of the hard disk drive, the installed memory configurations, and the type
of keyboard included.  Therefore all models will be covered by this one
document.  Differences will be indicated by model number in parentheses.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Jump directly to the PS/2 Model 55SX Systems header.


ΓòÉΓòÉΓòÉ 10.4.1.1. PS/2 Model 55-031/041/061/081/R31/R61: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 55-031 header.

 DESCRIPTION                                       8555-031/041/061/081/R31/R61
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    Intel 386SX
 Clock Speed                                       16 MHz
 Instruction Set                                   32 bit
 Addressing                                        24 bit
 I/O Channel Width                                 16/8 Bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
  DMA Burst Mode Supported                         Yes
 Bus Masters Supported                             15
 Upgradeable Processor Complex                     No
 Matched Memory Cycle                              No
 Page Memory Logic                                 No (7a)

 MEMORY
 Standard (Motherboard)                            2MB (031) (2q)/2MB (061)
                                                   (2w)
                                                   4MB (041/081) (7b)
 Maximum (Motherboard)                             8MB (4k)
 Maximum (System)                                  16MB (2r)
 Total # of Sys Bd SIMM Sockets                    2
 # of Sys Bd SIMM Sockets Avail                    0
 Memory Chip Speed (ns)                            100/85 (2s)
 Memory Chip Type                                  DRAM
 Memory Cache Controller                           No
 Wait States: Motherboard                          0-2
        Adapter                                    0-2
 Memory Used: Motherboard                          1MB/2MB/4MB SIMM


ΓòÉΓòÉΓòÉ 10.4.1.2. PS/2 Model 55-031/041/061/081/R31/R61: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 55-031/041/061/081/R31/R61 header.

 DESCRIPTION                                       8555-031/041/061/081/R31/R61
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 Optional Math Coprocessor                         387SX
  Coprocessor Speed                                16MHz
 Standard Graphics                                 VGA
  8/16/32-bit Controller                           8
  Bus Master                                       No
  Video Memory (DRAM) Standard                     256K
 Maximum Graphics                                  XGA-2 (c)
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Adapter
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
  Resolutions Supported                            640x480 64K Colors
                                                   800x600 64K Colors
                                                   1024x768 256 Colors
                                                   1280x1024 16 Colors
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 RS232C Serial Ports                               1
  UART Chip Used                                   NS16550A
  Maximum Speed (bits/second)                      19,200
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 Speaker/Beeper                                    Beeper


ΓòÉΓòÉΓòÉ 10.4.1.3. PS/2 Model 55-031/041/061/081/R31/R61: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 55-031/041/061/081/R31/R61 header.

 DESCRIPTION                                       8555-031/041/061/081/R31/R61
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     2
  # of 3.5"/5.25" Bays                             2/0
  # of 3.5"/5.25" Bays Available                   0/0
 Diskette Drives Standard                          1x1.44MB
   Media Sensing                                   No
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (g)
   Media Sensing                                   No
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      No
  3.5" 2.88MB                                      No
  Internal Drives Supported                        1
  External Drives Supported                        1
  Maximum # Diskette Drives                        2
 Hard Disk Drives Standard                         1x30MB (031/R31)
                                                   1x40MB (041)
                                                   1x60MB (061/R61)
                                                   1x80MB (081)
  Drive Type                                       33 (30MB)
                                                   N/A (40MB/60MB/80MB)
  Drive Form Factor                                3.5"
  Maximum # of Internal HD Drives                  1 (3z)(5k)
  Optional HD Drive Sizes Available                N/A
  Maximum Internal HD Capacity                     30MB/40MB/60MB/80MB (3z)(5k)
  Average Access Rate (ms)                         39 (30MB)
                                                   17 (40MB/80MB)
                                                   27 (60MB)
  Sector Buffer Size                               ??K (30MB/60MB)
                                                   32K (40MB/80MB)
  Encoding Method                                  MFM (30MB/60MB)
                                                   RLL (40MB/80MB)
  Data Transfer Rate/second                        7.5 Mbits (30MB)
                                                   1.35 MBytes (40MB/80MB)
                                                   8.4 Mbits (60MB)
  Rotational Speed (RPMs)                          3600
  # of Heads                                       4 (30MB/80MB)
                                                   2 (40MB)
                                                   6 (60MB)
  # of Platters                                    2 (30MB/80MB)
                                                   1 (40MB)
                                                   3 (60MB)
  Sectors per Track                                25 (30MB)
                                                   39 (40MB/80MB)
                                                   26 (60MB)
  Cylinders                                        615 (30MB)
                                                   1038 (40MB)
                                                   762 (60MB)
                                                   1021 (80MB)
  Shock (Gs): Operating                            ?? (30MB/60MB)
                                                   10 (40MB/80MB)
        Non-operating                              ?? (30MB/60MB)
                                                   50 (40MB/80MB)
  MTBF (Hours)                                     90,000 (40MB)
                                                   110,000 (80MB)
  Interleave Factor                                1:1
  Controller/Connector Type                        ST-506/36-pin Direct Bus
                                                   Attach (DBA) (30MB/40MB)
                                                   ESDI/36-pin Direct Bus
                                                   Attach (DBA) (60MB/80MB)
  Auto Park                                        No
 Maximum # of DD and HD Drives                     3
 Internal Rewritable Optical Disk Drives           No
 Internal Optical CD-ROM Drives                    No

 TAPE STORAGE
 Internal Tape Drive Support                       No
 External Tape Drive Support
  5.25" 6157 Streaming Tape                        Models 001/002 (c)
  5.25" QIC SCSI Tape Drive                        Yes
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        Yes


ΓòÉΓòÉΓòÉ 10.4.1.4. PS/2 Model 55-031/041/061/081/R31/R61: Expansion/Operating Systems ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 55-031/041/061/081/R31/R61 header.

 DESCRIPTION                                       8555-031/041/061/081/R31/R61
 EXPANSION
 Total Adapter Slots                               3
  # of Long/Short Slots                            3/0
  # of 8/16/32-bit Slots                           0/3/0 (3a)
  # of Slots with Video Extension                  1
 Available Slots                                   3
  Maximum RAM with Available Slots                 16MB
  Maximum RAM Using No Slots                       8MB
  Maximum RAM Using Only 1 Slot                    16MB (2u)
  # of Slots Required for Maximum                  2
 # of Slots Avail after Maximum                    1

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        3.3 or later
 IBM OS/2                                          1.1 or later
 IBM AIX PS/2                                      No (031/041) (2v)/1.2 or
                                                   later (061/081)


ΓòÉΓòÉΓòÉ 10.4.1.5. PS/2 Model 55-031/041/061/081/R31/R61: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 55-031/041/061/081/R31/R61 header.

 DESCRIPTION                                       8555-031/041/061/081/R31/R61
 KEYBOARD
 101-Key Enhanced Keyboard                         Yes (031/041/061/081)
 50-Key Bank Teller Keyboard                       Yes (R31/R61)
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         6.0

 KEYBOARD
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Keyboard Password                                 Yes
 Power-on Password                                 Yes
  Network Server Mode                              Yes


ΓòÉΓòÉΓòÉ 10.4.1.6. PS/2 Model 55-031/041/061/081/R31/R61: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 55-031/041/061/081/R31/R61 header.

 DESCRIPTION                                       8555-031/041/061/081/R31/R61
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
 Dimensions: Height                                4.0"
       Width                                       16.0"
       Depth                                       15.6"
 Weight (lbs)                                      19.0

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              90
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Manual
 Amperage at:  90-137 VAC                          2.5
        180-265 VAC                                1.3
 Maximum Current Leakage (uA)                      <500
 Operating Range: Temperature                      60-90┬░ F
          Rel. Humidity                            8-80%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  438
 Noise Level Classification                        3D
  Noise (Avg dB, Operating, 1m)                    40

 MISCELLANEOUS
 FCC Classification                                B
 UL Approval                                       UL 478, 5th Edition
 Warranty Period                                   1 Year
 BIOS Model/Submodel/Revision                      F8/0C/00
 Announcement Letter Numbers                       NDD89-234, 191-??? (031/061)
                                                   NDD89-315, 191-??? (R31/R61)
                                                   NDD91-228, 191-??? (041/081)
 Date Announced                                    05/09/89 (031/061)
                                                   06/06/89 (R31/R61)
                                                   06/11/91 (041/081)
 Date Withdrawn                                    09/11/91 (031/061)
                                                   ??/??/?? (R31/R61)
                                                   05/25/92 (041/081)


ΓòÉΓòÉΓòÉ 10.4.2. PS/2 Model 55(LS)-LE0/LT0 Tech Specs ΓòÉΓòÉΓòÉ

Because the Model 55 LS models are identical, except for a choice of Token-Ring
(Model 8555-LT0) or Ethernet (Model 8555-LE0) network adapter, they are
represented by the one document, to follow.  Unless otherwise indicated, all
information applies equally to both LS models.

What differentiates the LS models from the SX models is the presence of a
network adapter in one of the adapter slots (which reduces the number of
available slots), and the lack of any diskette or hard disk drives (which may
be added later) in the system.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 55SX Systems header.


ΓòÉΓòÉΓòÉ 10.4.2.1. PS/2 Model 55-LE0/LT0: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 55-LE0/LT0 header.

 DESCRIPTION                                       8555-LE0/LT0
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    Intel 386SX
 Clock Speed                                       16 MHz
 Instruction Set                                   32 bit
 Addressing                                        24 bit
 I/O Channel Width                                 16/8 Bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
  DMA Burst Mode Supported                         Yes
 Bus Masters Supported                             15
 Upgradeable Processor Complex                     No
 Matched Memory Cycle                              No
 Page Memory Logic                                 No (7a)

 MEMORY
 Standard (Motherboard)                            2MB(2w)/4MB(7e) (7f)
 Maximum (Motherboard)                             8MB (4k)
 Maximum (System)                                  16MB (2r)
 Total # of Sys Bd SIMM Sockets                    2
 # of Sys Bd SIMM Sockets Avail                    1
 Memory Chip Speed (ns)                            85
 Memory Chip Type                                  DRAM
 Memory Cache Controller                           No
 Wait States: Motherboard                          0-2
        Adapter                                    0-2
 Memory Used: Motherboard                          1MB/2MB SIMM


ΓòÉΓòÉΓòÉ 10.4.2.2. PS/2 Model 55-LE0/LT0: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 55-LE0/LT0 header.

 DESCRIPTION                                       8555-LE0/LT0
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 Optional Math Coprocessor                         387SX
  Coprocessor Speed                                16MHz
 Standard Graphics                                 VGA
  8/16/32-bit Controller                           8
  Bus Master                                       No
  Video Memory (DRAM) Standard                     256K
 Maximum Graphics                                  XGA-2 (c)
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Adapter
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
  Resolutions Supported                            640x480 64K Colors
                                                   800x600 64K Colors
                                                   1024x768 256 Colors
                                                   1280x1024 16 Colors
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 RS232C Serial Ports                               1
  UART Chip Used                                   NS16550A
  Maximum Speed (bits/second)                      19,200
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          8 (6i)
 Ethernet Adapter                                  (LE0) (6n)
  Data Transfer Rate (Mbps)                        10
  Wiring Type                                      10Base-T
  Remote IPL feature installed                     Yes
 Token-Ring Adapter                                (LT0) (6n)
  Data Transfer Rate (Mbps)                        16/4
  Remote IPL feature installed                     Yes
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 Speaker/Beeper                                    Beeper
 Hard Disk Drive Support                           Yes (x)


ΓòÉΓòÉΓòÉ 10.4.2.3. PS/2 Model 55-LE0/LT0: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 55-LE0/LT0 header.

 DESCRIPTION                                       8555-LE0/LT0
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     2
  # of 3.5"/5.25" Bays                             2/0
  # of 3.5"/5.25" Bays Available                   2/0
 Diskette Drives Standard                          N/A
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (g)
   Media Sensing                                   No
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      Optional (i)(7i)
   Media Sensing                                   No
  3.5" 2.88MB                                      No
  Internal Drives Supported                        1 (7i)
  External Drives Supported                        1
  Maximum # Diskette Drives                        2
 Hard Disk Drives Standard                         0
  Drive Type                                       N/A
  Drive Form Factor                                3.5"
  Maximum # of HD Drives                           1 (7i)
  Optional HD Sizes Available:                     40MB (17ms)
                                                   80MB (17ms)
  Maximum Internal HD Capacity                     80MB
  Interleave Factor                                1:1
  Auto Park                                        Yes
 Maximum # of DD and HD Drives                     3

 TAPE STORAGE
 Internal Tape Drive Support                       No
 External Tape Drive Support
  5.25" 6157 Streaming Tape                        Models 001/002 (c)
  5.25" QIC SCSI Tape Drive                        Yes
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        Yes


ΓòÉΓòÉΓòÉ 10.4.2.4. PS/2 Model 55-LE0/LT0: Expansion/Operating Systems ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 55-LE0/LT0 header.

 DESCRIPTION                                       8555-LE0/LT0
 EXPANSION
 Total Adapter Slots                               3
  # of Long/Short Slots                            3/0
  # of 8/16/32-bit Slots                           0/3/0 (3a)
  # of Slots with Video Extension                  1
  # of Slots with Network Adapter                  1
 Available Slots                                   2 (7d)
  Maximum RAM with Available Slots                 16MB
  Maximum RAM Using Only 1 Slot                    16MB (2u)
  # of Slots Required for Maximum                  1
 # of Slots Avail after Maximum                    1

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        3.3 or later
 IBM OS/2                                          1.2 or later (2d)
 IBM AIX PS/2                                      (2v)


ΓòÉΓòÉΓòÉ 10.4.2.5. PS/2 Model 55-LE0/LT0: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 55-LE0/LT0 header.

 DESCRIPTION                                       8555-LE0/LT0
 KEYBOARD
 101-Key Enhanced Keyboard                         Yes
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         6.0

 SECURITY
 C2 Security Enabled                               No
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Keyboard Password                                 Yes
 Power-on Password                                 Yes
  Network Server Mode                              Yes


ΓòÉΓòÉΓòÉ 10.4.2.6. PS/2 Model 55-LE0/LT0: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 55-LE0/LT0 header.

 DESCRIPTION                                       8555-LE0/LT0
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
 Dimensions: Height                                4.0"
       Width                                       16.0"
       Depth                                       15.6"
 Weight (lbs)                                      15.5

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              90
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Manual
 Amperage at:  90-137 VAC                          2.5
        180-265 VAC                                1.3
 Maximum Current Leakage (uA)                      <500
 Operating Range: Temperature                      60-90┬░ F
          Rel. Humidity                            8-80%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  438
 Noise Level Classification                        3D
  Noise (Avg dB, Operating, 1m)                    40

 MISCELLANEOUS
 FCC Classification                                B (LE0)
                                                   B/A (LT0) (4c)
 Warranty Period                                   1 Year
 BIOS Model/Submodel/Revision                      F8/1E/00
 Announcement Letter Numbers                       NDD90-415, 191-???
 Date Announced                                    10/09/90
 Date Withdrawn                                    05/25/92


ΓòÉΓòÉΓòÉ 10.5. PS/2 Model 56 386SX Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
386SX-based Model 56 systems.

Choose the section to which you wish to jump, below:

 20MHz Systems
 PS/2 Model 56-043/045
 PS/2 Model 56(LS)-14X/24X

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 10.5.1. PS/2 Model 56-043/045 Tech Specs ΓòÉΓòÉΓòÉ

Because the Model 56-043 and 56-045 models are identical, except for the size
of hard disk drive, they are represented by the one document, to follow.
Differences will be indicated by model number in parentheses.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Jump directly to the PS/2 Model 56 386SX Systems header.


ΓòÉΓòÉΓòÉ 10.5.1.1. PS/2 Model 56-043/045: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 56-043/045 header.

 DESCRIPTION                                       8556-043/045
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    Intel 386SX
 Clock Speed                                       20
 Instruction Set                                   32 bit
 Addressing                                        24 Bit
 I/O Channel Width                                 16 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
  DMA Burst Mode Supported                         ???
 Upgradeable Processor Complex                     Yes
  Processor Upgrades Available                     20MHz IBM 386SLC (8g)
                                                   40/20MHz IBM 486SLC2 (9y)
                                                   60/20MHz IBM 486SLC3 (7g)
 Bus Masters Supported                             15
 Interleaved Memory                                Yes
 Matched Memory Cycle                              N/A (5i)
 Page Memory Logic                                 No (7a)

 MEMORY
 Standard (Motherboard)                            4MB (7b)
 Maximum (Motherboard)                             16MB
 Maximum (System)                                  16MB (2r)
 Total # of Motherboard SIMM Sockets               3
 # of Motherboard SIMM Sockets Available           2
 Standard Memory Speed (ns)                        70
 Memory Type                                       DRAM
  Memory Interleaving                              Yes
 Memory Cache Controller                           No
 Wait States: Motherboard                          0-2
        Adapter                                    N/A (8q)
 Memory Used: Motherboard                          2/4/8MB SIMMs (70ns)


ΓòÉΓòÉΓòÉ 10.5.1.2. PS/2 Model 56-043/045: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 56-043/045 header.

 DESCRIPTION                                       8556-043/045
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 BIOS Extensions Stored on Disk                    Yes (5v)
 Setup & Diags Stored on Disk                      Yes (5v)
 Optional Math Coprocessor                         387SX
  Coprocessor Speed                                20MHz
 Standard Graphics                                 VGA+
  8/16/32-bit Controller                           16
  132-Column Text Mode                             Yes
  Bus Master                                       No
  Video Memory (DRAM) Standard                     256K
 Maximum Graphics                                  XGA-2 (c)
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Adapter
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
  Resolutions Supported                            640x480 64K Colors
                                                   800x600 64K Colors
                                                   1024x768 256 Colors
                                                   1280x1024 16 Colors
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 RS232C Serial Ports                               1
  UART Chip Used                                   ???
  Maximum Speed (bits/second)                      345,600
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
  IBM Mouse                                        Included
   Mouse Resolution                                Up to 200 DPI, programmable
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 SCSI port                                         Yes (5c)
  Internal/External Connectors                     Yes/Yes
  On Motherboard/Adapter                           Motherboard


ΓòÉΓòÉΓòÉ 10.5.1.3. PS/2 Model 56-043/045: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 56-043/045 header.

 DESCRIPTION                                       8556-043/045
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     2
  # of 3.5"/5.25" Bays                             0/2
  # of 3.5"/5.25" Bays Available                   0/0
 Selectable Boot                                   Yes
  Bootable Physical Drives                         A:/C:
 Diskette Drives Standard                          1x2.88MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)(7t)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (j)(7t)
   Media Sensing                                   No
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      N/A (no bays available)
  3.5" 2.88MB                                      N/A (no bays available)
  Internal Drives Supported                        1
  External Drives Supported                        1
  Maximum # Diskette Drives                        2
 Hard Disk Drives Standard                         1x40MB (043)
                                                   1x80MB (045)
  Drive Type                                       SCSI
  Encoding Method                                  RLL
  Drive Form Factor                                3.5"
  Average Access Rate (ms)                         17 (40MB)
                                                   17 (80MB)
  Sector Buffer Size                               32K
  Data Transfer Rate (/second)                     1.35 MBytes
  Average Latency (ms)                             8.3
  Rotational Speed (RPMs)                          3600
  # of Heads                                       4 (40MB)
                                                   8 (80MB)
  # of Platters                                    2 (40MB)
                                                   4 (80MB)
  Sectors per Track                                39
  Cylinders                                        1021
  Shock Rating (Gs): Operating                     ??
            Non-operating                          ??
  MTBF (Hours)                                     ???
  Auto Park                                        Yes
  Maximum # of Internal HD Drives                  1
  Optional HD Sizes Available:                     170MB (13ms)
                                                   340MB (13ms)
                                                   540MB (8.7ms)
                                                   1GB (8.6ms)
                                                   2GB (9.5ms)
  Maximum Internal HD Capacity                     2GB (3z)(4o)(5k)
 Standard Hard Disk Controller Type                SCSI
  Bus Master                                       Yes
   16-bit Adapter                                  Standard
   32-bit Adapter With Cache                       Optional
  # of Devices Supported/Adapter                   7/15 (3r)
  # of Adapters Supported/System                   4
  Controller Data Transfer/Second
   Controller to Micro Channel                     6.6 MBytes
   Controller to SCSI Devices                      5.0 MBytes
  Interleave Factor                                1:1
 Internal Rewritable Optical Disk Drives           Optional
  Maximum Internal Drives Supported                1 (5k)
 Internal Optical CD-ROM Drives                    Optional
  Maximum Internal Drives Supported                1 (5k)

 TAPE STORAGE
 Internal Tape Drive Support                       No
 External Tape Drive Support
  5.25" QIC SCSI Tape Drive                        Yes
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        Yes


ΓòÉΓòÉΓòÉ 10.5.1.4. PS/2 Model 56-043/045: Expansion/Operating System ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 56-043/045 header.

 DESCRIPTION                                       8556-043/045
 EXPANSION
 Total Adapter Slots                               3
  # of Long/Short Slots                            3/0
  # of 8/16/32-bit Slots                           0/3/0 (3a)
  # of Slots with Video Extension                  1
 Available Slots                                   3
  Maximum RAM with Available Slots                 16MB (8q)

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        5.0 or later
 IBM OS/2                                          1.30.1 or later (r)
 IBM AIX PS/2                                      1.2.1 (with PTF P210900) or
                                                   later (045 only) (2v)


ΓòÉΓòÉΓòÉ 10.5.1.5. PS/2 Model 56-043/045: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 56-043/045 header.

 DESCRIPTION                                       8556-043/045
 KEYBOARD
 122-Key Host-Connected Keyboard (6w)              Yes (8p)
 106-Key Japanese Keyboard                         Yes (8p)
 101-Key Enhanced Keyboard                         Yes (8p)
 84-Key Keyboard                                   Yes (8p)
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         10 (3 meters)

 SECURITY
 C2 Security Enabled                               No
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Keyboard Password                                 Yes
 Power-on Password                                 Yes
  Network Server Mode                              Yes


ΓòÉΓòÉΓòÉ 10.5.1.6. PS/2 Model 56-043/045: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 56-043/045 header.

 DESCRIPTION                                       8556-043/045
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
  Orientation                                      Horizontal (6x)
  Vertical-Mount Floor Stand                       Optional
 Dimensions: Height                                4.5"
        Width                                      14.2"
        Depth                                      15.6"
 Weight (lbs):                                     22.4 (040)
                                                   23.8 (043)

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              118
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-137 VAC                          3.5
        180-265 VAC                                1.75
 Operating Range: Temperature                      50-95┬░ F
           Rel. Humidity                           8-80%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  154
 Noise (Avg dB, Operating, 1m)                     ??
    Classification                                 3D

 MISCELLANEOUS
 Software Included                                 OS/2 2.0 (045)
 FCC Classification                                B
 UL Approval                                       UL 1950, 1st Edition
 CSA Approval                                      CSA22.2 No. 220-M1986
 Warranty Period                                   1 Year
  Int'l Traveler's Warranty Service                No
  Countries Warranty Valid In                      USA/Canada
 BIOS Model/Submodel/Revision                      F8/26/01 (Without Cached
                                                   Processor Option)
                                                   F8/25/06 (With Cached
                                                   Processor Option)
 Announcement Letter Numbers                       NDD92-100
 Date Announced                                    02/25/92
 Date Withdrawn                                    06/11/93


ΓòÉΓòÉΓòÉ 10.5.1.7. PS/2 Model 56-043/045: Limitations ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 56-043/045 header.

 The following options and adapters are Not supported by this system.

     3363 Optical (WORM) Disk Drive models A11, B01
     5.25" 360K External Diskette Drive Adapter/A (6450245/#8760)
     5.25" 1.2MB Internal Diskette Drive (6451006; replaced by 6451066)
     All memory adapters
     All SIMMs except 2MB/4MB/8MB 70ns
     ARTIC PortMaster Adapter/A (53F2601/53F2604/53F2607) and options
     CD-ROM Drive (6450845/#0845; replaced by 6451113/#1113)
     CD-ROM Drive (6451113/#1113) is not supported if PS/2 Cached Processor
      Option (6451231/1231)is installed
     Image Adapter/A (07F4400/#4324; replaced by 06G8215/#0072)
     Image Adapter/A 1MB (44F9626/#0072; replaced by 06G8215/#0072), 3MB
      (69F9724/#0073; replaced by 06G8216/#0073), 3MB 6091 (44F9621/#0074;
      replaced by 06G8217/#0074)


ΓòÉΓòÉΓòÉ 10.5.2. PS/2 Model 56(LS)-14X/24X Tech Specs ΓòÉΓòÉΓòÉ

Because the Model 56 LS (LAN Station) models are identical, except for a choice
of Token-Ring (Model 8556-24X) or Ethernet (Model 8556-14X) network adapter,
both models will be covered by this one document.  Differences will be
indicated by model number in parentheses.

What differentiates the LS models from the other 386SX models is the presence
of a network adapter in one of the adapter slots (which reduces the number of
available slots), and the lack of any diskette or hard disk drives (which may
be added later) in the system.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Jump directly to the PS/2 Model 56-14X/24X Systems header.


ΓòÉΓòÉΓòÉ 10.5.2.1. PS/2 Model 56-14X/24X: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 56-14X/24X header.

 DESCRIPTION                                       8556-14X/24X
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    Intel 386SX
 Clock Speed                                       20
 Instruction Set                                   32 bit
 Addressing                                        24 Bit
 I/O Channel Width                                 16 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
  DMA Burst Mode Supported                         ???
 Upgradeable Processor Complex                     Yes
  Processor Upgrades Available                     20MHz IBM 386SLC (8g)
                                                   40/20MHz IBM 486SLC2 (9y)
                                                   60/20MHz IBM 486SLC3 (7g)
 Bus Masters Supported                             15
 Interleaved Memory                                Yes
 Matched Memory Cycle                              N/A (5i)
 Page Memory Logic                                 No (7a)

 MEMORY
 Standard (Motherboard)                            4MB (7b)
 Maximum (Motherboard)                             16MB
 Maximum (System)                                  16MB (2r)
 Total # of Motherboard SIMM Sockets               3
 # of Motherboard SIMM Sockets Available           2
 Standard Memory Speed (ns)                        70
 Memory Type                                       DRAM
  Memory Interleaving                              Yes
 Memory Cache Controller                           No
 Wait States: Motherboard                          0-2
        Adapter                                    N/A (8q)
 Memory Used: Motherboard                          2/4/8MB SIMMs (70ns)


ΓòÉΓòÉΓòÉ 10.5.2.2. PS/2 Model 56-14X/24X: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 56-14X/24X header.

 DESCRIPTION                                       8556-14X/24X
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 BIOS Extensions Stored on Disk                    Yes (5v)
 Setup & Diags Stored on Disk                      Yes (5v)
 Optional Math Coprocessor                         387SX (8m)
  Coprocessor Speed                                20MHz
 Standard Graphics                                 VGA+
  8/16/32-bit Controller                           16
  132-Column Text Mode                             Yes
  Bus Master                                       No
  Video Memory (DRAM) Standard                     256K
 Maximum Graphics                                  XGA-2 (c)
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Adapter
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
  Resolutions Supported                            640x480 64K Colors
                                                   800x600 64K Colors
                                                   1024x768 256 Colors
                                                   1280x1024 16 Colors
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 RS232C Serial Ports                               1
  UART Chip Used                                   ???
  Maximum Speed (bits/second)                      345,600
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 Token-Ring Adapters                               1 (6n) (24X)
  Data Transfer Rate (Mbps)                        16/4
  Remote IPL feature installed                     Yes
 Ethernet Adapters                                 1 (6n) (14X)
  Data Transfer Rate (Mbps)                        10
  Wiring Type                                      10Base-T
  Remote IPL feature installed                     Yes
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 Diskette Drive Support                            Yes
 SCSI port                                         Yes (5c)
  Internal/External Connectors                     Yes/Yes
  On Motherboard/Adapter                           Motherboard


ΓòÉΓòÉΓòÉ 10.5.2.3. PS/2 Model 56-14X/24X: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 56-14X/24X header.

 DESCRIPTION                                       8556-14X/24X
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     2
  # of 3.5"/5.25" Bays                             0/2
  # of 3.5"/5.25" Bays Available                   0/2
 Selectable Boot                                   Yes
  Bootable Physical Drives                         A:/C:
 Diskette Drives Standard                          0
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)(7t)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (j)(7i)(7t)
   Media Sensing                                   No
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      Optional (i)(7i)
   Media Sensing                                   No
  3.5" 2.88MB                                      Optional (i)(7i)
   Media Sensing                                   Yes
  Internal Drives Supported                        2 (7i)(9s)
  External Drives Supported                        1
  Maximum # Diskette Drives                        3 (9s)
 Hard Disk Drives Standard                         0 (9s)
  Maximum # of Internal HD Drives                  1 (7i)(9s)
  Drive Type                                       SCSI
  Encoding Method                                  RLL
  Drive Form Factor                                3.5"
  Optional HD Sizes Available:                     170MB (13ms)
                                                   340MB (13ms)
                                                   540MB (8.7ms)
                                                   1GB (8.6ms)
                                                   2GB (9.5ms)
  Maximum Internal HD Capacity                     2GB (3z)(4o)(5k)
 Standard Hard Disk Controller Type                SCSI
  Bus Master                                       Yes
   16-bit Adapter                                  Standard
   32-bit Adapter With Cache                       Optional
  # of Devices Supported/Adapter                   7/15 (3r)
  # of Adapters Supported/System                   4
  Controller Data Transfer/Second
   Controller to Micro Channel                     6.6 MBytes
   Controller to SCSI Devices                      5.0 MBytes
  Interleave Factor                                1:1
 Internal Rewritable Optical Disk Drives           Optional
  Maximum Internal Drives Supported                1 (5k)
 Internal Optical CD-ROM Drives                    Optional
  Maximum Internal Drives Supported                1 (5k)

 TAPE STORAGE
 Internal Tape Drive Support                       No
 External Tape Drive Support
  5.25" QIC SCSI Tape Drive                        Yes
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        Yes


ΓòÉΓòÉΓòÉ 10.5.2.4. PS/2 Model 56-14X/24X: Expansion/Operating System ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 56-14X/24X header.

 DESCRIPTION                                       8556-14X/24X
 EXPANSION
 Total Adapter Slots                               3
  # of Long/Short Slots                            3/0
  # of 8/16/32-bit Slots                           0/3/0 (3a)
  # of Slots with Video Extension                  0
  # of Slots with Network Adapter                  1
 Available Slots                                   2 (7d)
  Maximum RAM with Available Slots                 16MB (8q)

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        5.0 or later
 IBM OS/2                                          1.30.2
 IBM AIX PS/2                                      1.2.1 (with PTF P210900)
                                                   (2v)


ΓòÉΓòÉΓòÉ 10.5.2.5. PS/2 Model 56-14X/24X: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 56-14X/24X header.

 DESCRIPTION                                       8556-14X/24X
 KEYBOARD
 122-Key Host-Connected Keyboard (6w)              Yes (8p)
 106-Key Japanese Keyboard                         No
 101-Key Enhanced Keyboard                         Yes (8p)
 84-Key Keyboard                                   Yes (8p)
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         10 (3 meters)

 SECURITY
 C2 Security Enabled                               No
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Keyboard Password                                 Yes
 Power-on Password                                 Yes
  Network Server Mode                              Yes


ΓòÉΓòÉΓòÉ 10.5.2.6. PS/2 Model 56-14X/24X: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 56-14X/24X header.

 DESCRIPTION                                       8556-14X/24X
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
  Orientation                                      Horizontal (6x)
  Vertical-Mount Floor Stand                       Optional
 Dimensions: Height                                4.5"
        Width                                      14.2"
        Depth                                      15.6"
 Weight (lbs):                                     21.4 (14X)
                                                   21.1 (24X)

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              118
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-137 VAC                          3.5
        180-265 VAC                                1.75
 Operating Range: Temperature                      50-95┬░ F
           Rel. Humidity                           8-80%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  136 (14X)
                                                   150 (24X)
 Noise (Avg dB, Operating, 1m)                     ??
    Classification                                 3D

 MISCELLANEOUS
 Software Included                                 None (7m)
 FCC Classification                                B (14X)
                                                   B/A (24X) (4c)
 UL Approval                                       UL 1950, 1st Edition
 CSA Approval                                      CSA22.2 No. 220-M1986
 Warranty Period                                   1 Year
  Int'l Traveler's Warranty Service                No
  Countries Warranty Valid In                      USA/Canada
 BIOS Model/Submodel/Revision                      F8/26/??
 Announcement Letter Numbers                       NDD92-100
 Date Announced                                    02/25/92
 Date Withdrawn                                    06/11/93


ΓòÉΓòÉΓòÉ 10.5.2.7. PS/2 Model 56-14X/24X: Limitations ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 56-14X/24X header.

 The following options and adapters are Not supported by this system.

     3363 Optical (WORM) Disk Drive models A11, B01
     5.25" 360K External Diskette Drive Adapter/A (6450245/#8760)
     5.25" 1.2MB Internal Diskette Drive (6451006; replaced by 6451066)
     All memory adapters
     All SIMMs except 2MB/4MB/8MB 70ns
     ARTIC PortMaster Adapter/A (53F2601/53F2604/53F2607) and options
     CD-ROM Drive (6450845/#0845; replaced by 6451113/#1113)
     CD-ROM Drive (6451113/#1113) is not supported if PS/2 Cached Processor
      Option (6451231/1231)is installed
     Image Adapter/A (07F4400/#4324; replaced by 06G8215/#0072)
     Image Adapter/A 1MB (44F9626/#0072; replaced by 06G8215/#0072), 3MB
      (69F9724/#0073; replaced by 06G8216/#0073), 3MB 6091 (44F9621/#0074;
      replaced by 06G8217/#0074)


ΓòÉΓòÉΓòÉ 10.6. PS/2 Model 56 386SLC Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
IBM 386SLC-based Model 56 systems.  These are differentiated from the
"standard" Model 56 SX systems by the use of the 386SLC chip, rather than the
386SX.

Choose the section to which you wish to jump, below:

 20MHz Systems
 PS/2 Model 56-055/059
 PS/2 Model 56(LS)-15X/25X

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 10.6.1. PS/2 Model 56-055/059 Tech Specs ΓòÉΓòÉΓòÉ

The PS/2 Models 56-055 and 56-059 are identical except for the hard disk drive
used.  Therefore both models will be covered by this one document. Differences
will be indicated by model number in parentheses.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Jump directly to the PS/2 Model 56 386SLC Systems header.


ΓòÉΓòÉΓòÉ 10.6.1.1. PS/2 Model 56-055/059: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 56-055/059 header.

 DESCRIPTION                                       8556-055/059
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    IBM 386SLC (8g)
 Clock Multiplying                                 No
 Internal/External Cache                           Internal (4u)
  Cache Size                                       8K
 Clock Speed (MHz)                                 20
 Instruction Set                                   32 bit
 Addressing                                        24 Bit
 I/O Channel Width                                 16 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
  DMA Burst Mode Supported                         ???
 Upgradeable Processor Complex                     Yes
  Processor Upgrades Available                     40/20MHz IBM 486SLC2 (9y)
                                                   60/20MHz IBM 486SLC3 (7g)
 Bus Masters Supported                             15
 Interleaved Memory                                Yes
 Matched Memory Cycle                              N/A (5i)
 Page Memory Logic                                 No (7a)

 MEMORY
 Standard (Motherboard)                            4MB(7b)/8MB(9u) (9z)
 Maximum (Motherboard)                             16MB
 Maximum (System)                                  16MB (2r)
 Total # of Motherboard SIMM Sockets               3
 # of Motherboard SIMM Sockets Available           2
 Standard Memory Speed (ns)                        70
 Memory Type                                       DRAM
  Memory Interleaving                              Yes
 Memory Cache Controller                           No
 Wait States: Motherboard                          0
        Adapter                                    N/A (8q)
 Memory Used: Motherboard                          2/4/8MB SIMMs (70ns)


ΓòÉΓòÉΓòÉ 10.6.1.2. PS/2 Model 56-055/059: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 56-055/059 header.

 DESCRIPTION                                       8556-055/059
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 BIOS Extensions Stored on Disk                    Yes (5v)
 Setup & Diags Stored on Disk                      Yes (5v)
 Optional Math Coprocessor                         387SX (8m)
  Coprocessor Speed                                20MHz
 Standard Graphics                                 VGA+
  8/16/32-bit Controller                           16
  132-Column Text Mode                             Yes
  Bus Master                                       No
  Video Memory (DRAM) Standard                     256K
 Maximum Graphics                                  XGA-2 (c)
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Adapter
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
  Resolutions Supported                            640x480 64K Colors
                                                   800x600 64K Colors
                                                   1024x768 256 Colors
                                                   1280x1024 16 Colors
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 RS232C Serial Ports                               1
  UART Chip Used                                   ???
  Maximum Speed (bits/second)                      345,600
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
  IBM Mouse Included                               Yes
   Mouse Resolution                                Up to 200 DPI, programmable
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 SCSI port                                         Yes (5c)
  Internal/External Connectors                     Yes/Yes
  On Motherboard/Adapter                           Motherboard


ΓòÉΓòÉΓòÉ 10.6.1.3. PS/2 Model 56-055/059: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 56-055/059 header.

 DESCRIPTION                                       8556-055/059
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     2
  # of 3.5"/5.25" Bays                             0/2
  # of 3.5"/5.25" Bays Available                   0/0
 Selectable Boot                                   Yes
  Bootable Physical Drives                         A:/C:
 Diskette Drives Standard                          1x2.88MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)(7t)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (j)(7t)
   Media Sensing                                   No
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      N/A (no bays available)
  3.5" 2.88MB                                      N/A (no bays available)
  Internal Drives Supported                        1
  External Drives Supported                        1
  Maximum # Diskette Drives                        2
 Hard Disk Drives Standard                         1x80MB (055)
                                                   1x160MB (059)
  Drive Type                                       SCSI
  Encoding Method                                  RLL
  Drive Form Factor                                3.5"
  Average Access Rate (ms)                         17 (80MB)
                                                   16 (160MB)
  Sector Buffer Size                               32K
  Data Transfer Rate (/Second)                     1.35 MBytes (80MB)
                                                   1.5 MBytes (160MB)
  Average Latency (ms)                             8.3
  Rotational Speed (RPMs)                          3600
  # of Heads                                       4 (80MB)
                                                   8 (160MB)
  # of Platters                                    2 (80MB)
                                                   4 (160MB)
  Sectors per Track                                39
  Cylinders                                        1021
  Shock Rating (Gs): Operating                     10
            Non-operating                          50
  MTBF (Hours)                                     110,000
  Interleave Factor                                1:1
  Interleave Factor                                1:1
  Auto Park                                        Yes
  Maximum # of Internal HD Drives                  1
  Optional HD Sizes Available:                     170MB (13ms)
                                                   340MB (13ms)
                                                   540MB (8.7ms)
                                                   1GB (8.6ms)
                                                   2GB (9.5ms)
  Maximum Internal HD Capacity                     2GB (3z)(4o)(5k)
 Standard Hard Disk Controller Type                SCSI
  Bus Master                                       Yes
   16-bit Adapter                                  Standard
   32-bit Adapter With Cache                       Optional
  # of Devices Supported/Adapter                   7/15 (3r)
  # of Adapters Supported/System                   4
  Controller Data Transfer/Second
   Controller to Micro Channel                     6.6 MBytes
   Controller to SCSI Devices                      5.0 MBytes
 Internal Rewritable Optical Disk Drives           Optional
  Maximum Internal Drives Supported                1 (5k)
 Internal Optical CD-ROM Drives                    Optional
  Maximum Internal Drives Supported                1 (5k)

 TAPE STORAGE
 Internal Tape Drive Support                       No
 External Tape Drive Support
  5.25" QIC SCSI Tape Drive                        Yes
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        Yes


ΓòÉΓòÉΓòÉ 10.6.1.4. PS/2 Model 56-055/059: Expansion/Operating System ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 56-055/059 header.

 DESCRIPTION                                       8556-055/059
 EXPANSION
 Total Adapter Slots                               3
  # of Long/Short Slots                            3/0
  # of 8/16/32-bit Slots                           0/3/0 (3a)
  # of Slots with Video Extension                  1
 Available Slots                                   3
  Maximum RAM with Available Slots                 16MB (8q)

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        5.0 or later
 IBM OS/2                                          1.30.1 or later (r)
 IBM AIX PS/2                                      1.2.1 (with PTF P210900) or
                                                   later


ΓòÉΓòÉΓòÉ 10.6.1.5. PS/2 Model 56-055/059: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 56-055/059 header.

 DESCRIPTION                                       8556-055/059
 KEYBOARD
 122-Key Host-Connected Keyboard (6w)              Yes (8p)
 Japanese Keyboard                                 Yes (8p)
 101-Key Enhanced Keyboard                         Yes (8p)
 84-Key Keyboard                                   Yes (8p)
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         10 (3 meters)

 SECURITY
 C2 Security Enabled                               No
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Keyboard Password                                 Yes
 Power-on Password                                 Yes
  Network Server Mode                              Yes


ΓòÉΓòÉΓòÉ 10.6.1.6. PS/2 Model 56-055/059: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 56-055/059 header.

 DESCRIPTION                                       8556-055/059
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
  Orientation                                      Horizontal (6x)
  Vertical-Mount Floor Stand                       Optional
 Dimensions: Height                                4.5"
        Width                                      14.2"
        Depth                                      15.6"
 Weight (lbs):                                     22.4 (055)
                                                   23.8 (059)

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              118
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-137 VAC                          3.5
        180-265 VAC                                1.75
 Operating Range: Temperature                      50-95┬░ F
           Rel. Humidity                           8-80%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  130 (055)
                                                   144 (059)
 Noise (Avg dB, Operating, 1m)                     ??
    Classification                                 3D

 MISCELLANEOUS
 Software Included                                 OS/2 2.0
 FCC Classification                                B
 UL Approval                                       UL 1950, 1st Edition
 CSA Approval                                      CSA22.2 No. 220-M1986
 Warranty Period                                   1 Year
  Int'l Traveler's Warranty Service                No
  Countries Warranty Valid In                      USA/Canada
 Announcement Letter Numbers                       NDD92-099
                                                   NDD92-371
 BIOS Model/Submodel/Revision                      F8/25/06
 Date Announced                                    02/25/92
 Date Withdrawn                                    06/11/93


ΓòÉΓòÉΓòÉ 10.6.1.7. PS/2 Model 56-055/059: Limitations ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 56-055/059 header.

 The following options and adapters are Not supported by this system.

     3363 Optical (WORM) Disk Drive models A11, B01
     5.25" 360K External Diskette Drive Adapter/A (6450245/#8760)
     5.25" 1.2MB Internal Diskette Drive (6451006; replaced by 6451066)
     All memory adapters
     All SIMMs except 2MB/4MB/8MB 70ns
     ARTIC PortMaster Adapter/A (53F2601/53F2604/53F2607) and options
     CD-ROM Drive (6450845/#0845; replaced by 6451113/#1113)
     Image Adapter/A (07F4400/#4324; replaced by 06G8215/#0072)
     Image Adapter/A 1MB (44F9626/#0072; replaced by 06G8215/#0072), 3MB
      (69F9724/#0073; replaced by 06G8216/#0073), 3MB 6091 (44F9621/#0074;
      replaced by 06G8217/#0074)


ΓòÉΓòÉΓòÉ 10.6.2. PS/2 Model 56(LS)-15X/25X Tech Specs ΓòÉΓòÉΓòÉ

Because the Model 56 LS models are identical, except for a choice of Token-Ring
(Model 8556-25X) or Ethernet (Model 8556-15X) network adapter, they are
represented by the one document, to follow.  Differences will be indicated by
model number in parentheses.

What differentiates the LS models from the other 386SLC models is the presence
of a network adapter in one of the adapter slots (which reduces the number of
available slots), and the lack of any diskette or hard disk drives (which may
be added later) in the system.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Jump directly to the PS/2 Model 56 386SLC Systems header.


ΓòÉΓòÉΓòÉ 10.6.2.1. PS/2 Model 56-15X/25X: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 56-15X/25X header.

 DESCRIPTION                                       8556-15X/25X
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    IBM 386SLC (8g)
 Clock Multiplying                                 No
 Internal/External Cache                           Internal (4u)
  Cache Size                                       8K
 Clock Speed (MHz)                                 20
 Instruction Set                                   32 bit
 Addressing                                        24 Bit
 I/O Channel Width                                 16 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
  DMA Burst Mode Supported                         ???
 Upgradeable Processor Complex                     Yes
  Processor Upgrades Available                     40/20MHz IBM 486SLC2 (9y)
                                                   60/20MHz IBM 486SLC3 (7g)
 Bus Masters Supported                             15
 Interleaved Memory                                Yes
 Matched Memory Cycle                              N/A (5i)
 Page Memory Logic                                 No (7a)

 MEMORY
 Standard (Motherboard)                            4MB (7b)
 Maximum (Motherboard)                             16MB
 Maximum (System)                                  16MB (2r)
 Total # of Motherboard SIMM Sockets               3
 # of Motherboard SIMM Sockets Available           2
 Standard Memory Speed (ns)                        70
 Memory Type                                       DRAM
  Memory Interleaving                              Yes
 Wait States: Motherboard                          0
        Adapter                                    N/A (8q)
 Memory Used: Motherboard                          2/4/8MB SIMMs (70ns)


ΓòÉΓòÉΓòÉ 10.6.2.2. PS/2 Model 56-15X/25X: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 56-15X/25X header.

 DESCRIPTION                                       8556-15X/25X
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 BIOS Extensions Stored on Disk                    Yes (5v)
 Setup & Diags Stored on Disk                      Yes (5v)
 Optional Math Coprocessor                         387SX (8m)
  Coprocessor Speed                                20MHz
 Standard Graphics                                 VGA+
  8/16/32-bit Controller                           16
  132-Column Text Mode                             Yes
  Bus Master                                       No
  Video Memory (DRAM) Standard                     256K
 Maximum Graphics                                  XGA-2 (c)
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Adapter
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
  Resolutions Supported                            640x480 64K Colors
                                                   800x600 64K Colors
                                                   1024x768 256 Colors
                                                   1280x1024 16 Colors
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 RS232C Serial Ports                               1
  UART Chip Used                                   ???
  Maximum Speed (bits/second)                      345,600
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
  IBM Mouse Included                               No
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 Token-Ring Adapters                               1 (6n) (25X)
  Data Transfer Rate (Mbps)                        16/4
  Remote IPL feature installed                     Yes
 Ethernet Adapters                                 1 (6n) (15X)
  Data Transfer Rate (Mbps)                        10
  Wiring Type                                      10Base-T
  Remote IPL feature installed                     Yes
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 Diskette Drive Support                            Yes
 SCSI port                                         Yes (5c)
  Internal/External Connectors                     Yes/Yes
  On Motherboard/Adapter                           Motherboard


ΓòÉΓòÉΓòÉ 10.6.2.3. PS/2 Model 56-15X/25X: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 56-15X/25X header.

 DESCRIPTION                                       8556-15X/25X
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     2
  # of 3.5"/5.25" Bays                             0/2
  # of 3.5"/5.25" Bays Available                   0/2
 Selectable Boot                                   Yes
  Bootable Physical Drives                         A:/C:
 Diskette Drives Standard                          0
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)(7t)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (j)(7t)
   Media Sensing                                   No
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      Optional (i)
   Media Sensing                                   No
  3.5" 2.88MB                                      Optional (i)
   Media Sensing                                   Yes
  Internal Drives Supported                        2 (9s)
  External Drives Supported                        1
  Maximum # Diskette Drives                        3 (9s)
 Hard Disk Drives Standard                         0 (9s)
  Maximum # of Internal HD Drives                  1 (9s)
  Drive Type                                       SCSI
  Encoding Method                                  RLL
  Drive Form Factor                                3.5"
  Optional HD Sizes Available:                     170MB (13ms)
                                                   340MB (13ms)
                                                   540MB (8.7ms)
                                                   1GB (8.6ms)
                                                   2GB (9.5ms)
  Maximum Internal HD Capacity                     2GB (3z)(4o)(5k)
 Standard Hard Disk Controller Type                SCSI
  Bus Master                                       Yes
   16-bit Adapter                                  Standard
   32-bit Adapter With Cache                       Optional
  # of Devices Supported/Adapter                   7/15 (3r)
  # of Adapters Supported/System                   4
  Controller Data Transfer/Second
   Controller to Micro Channel                     6.6 MBytes
   Controller to SCSI Devices                      5.0 MBytes
  Interleave Factor                                1:1
 Internal Rewritable Optical Disk Drives           Optional
  Maximum Internal Drives Supported                1 (5k)
 Internal Optical CD-ROM Drives                    Optional
  Maximum Internal Drives Supported                1 (5k)

 TAPE STORAGE
 Internal Tape Drive Support                       No
 External Tape Drive Support
  5.25" QIC SCSI Tape Drive                        Yes
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        Yes


ΓòÉΓòÉΓòÉ 10.6.2.4. PS/2 Model 56-15X/25X: Expansion/Operating System ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 56-15X/25X header.

 DESCRIPTION                                       8556-15X/25X
 EXPANSION
 Total Adapter Slots                               3
  # of Long/Short Slots                            3/0
  # of 8/16/32-bit Slots                           0/3/0 (3a)
  # of Slots with Video Extension                  0
  # of Slots with Network Adapter                  1
 Available Slots                                   2 (7d)
  Maximum RAM with Available Slots                 16MB (8q)

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        5.0 or later
 IBM OS/2                                          1.30.2 or later
 IBM AIX PS/2                                      1.2.1 (with PTF P210900)
                                                   (2v)


ΓòÉΓòÉΓòÉ 10.6.2.5. PS/2 Model 56-15X/25X: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 56-15X/25X header.

 DESCRIPTION                                       8556-15X/25X
 KEYBOARD
 122-Key Host-Connected Keyboard (6w)              Yes (8p)
 106-Key Japanese Keyboard                         No
 101-Key Enhanced Keyboard                         Yes (8p)
 84-Key Keyboard                                   Yes (8p)
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         10 (3 meters)

 SECURITY
 C2 Security Enabled                               No
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Keyboard Password                                 Yes
 Power-on Password                                 Yes
  Network Server Mode                              Yes


ΓòÉΓòÉΓòÉ 10.6.2.6. PS/2 Model 56-15X/25X: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 56-15X/25X header.

 DESCRIPTION                                       8556-15X/25X
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
  Orientation                                      Horizontal (6x)
  Vertical-Mount Floor Stand                       Optional
 Dimensions: Height                                4.5"
        Width                                      14.2"
        Depth                                      15.6"
 Weight (lbs):                                     21.4 (15X)
                                                   21.1 (25X)

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              118
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-137 VAC                          3.5
        180-265 VAC                                1.75
 Operating Range: Temperature                      50-95┬░ F
           Rel. Humidity                           8-80%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  136 (15X)
                                                   150 (25X)
 Noise (Avg dB, Operating, 1m)                     ??
    Classification                                 3D

 MISCELLANEOUS
 Software Included                                 None (7m)
 FCC Classification                                B (15X)
                                                   B/A (25X) (4c)
 UL Approval                                       UL 1950, 1st Edition
 CSA Approval                                      CSA22.2 No. 220-M1986
 Warranty Period                                   1 Year
  Int'l Traveler's Warranty Service                No
  Countries Warranty Valid In                      USA/Canada
 BIOS Model/Submodel/Revision                      F8/25/09
 BIOS Date                                         12/07/91
 Announcement Letter Numbers                       NDD92-099
 Date Announced                                    02/25/92
 Date Withdrawn                                    06/11/93


ΓòÉΓòÉΓòÉ 10.6.2.7. PS/2 Model 56-15X/25X: Limitations ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 56-15X/25X header.

 The following options and adapters are Not supported by this system.

     3363 Optical (WORM) Disk Drive models A11, B01
     5.25" 360K External Diskette Drive Adapter/A (6450245/#8760)
     5.25" 1.2MB Internal Diskette Drive (6451006; replaced by 6451066)
     All memory adapters
     All SIMMs except 2MB/4MB/8MB 70ns
     ARTIC PortMaster Adapter/A (53F2601/53F2604/53F2607) and options
     CD-ROM Drive (6450845/#0845; replaced by 6451113/#1113)
     Image Adapter/A (07F4400/#4324; replaced by 06G8215/#0072)
     Image Adapter/A 1MB (44F9626/#0072; replaced by 06G8215/#0072), 3MB
      (69F9724/#0073; replaced by 06G8216/#0073), 3MB 6091 (44F9621/#0074;
      replaced by 06G8217/#0074)


ΓòÉΓòÉΓòÉ 10.7. PS/2 Model 57 386SX Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
386SX-based Model 57 systems.

Choose the section to which you wish to jump, below:

 20MHz Systems
 PS/2 Model 57-045/049

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 10.7.1. PS/2 Model 57-045/049 Tech Specs ΓòÉΓòÉΓòÉ

The PS/2 Models 57-045 and 57-049 are identical except for the hard disk drive
used.  Therefore both models will be covered by this one document. Differences
will be indicated by model number in parentheses.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Jump directly to the PS/2 Model 57 386SX Systems header.


ΓòÉΓòÉΓòÉ 10.7.1.1. PS/2 Model 57-045/049: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 57-045/049 header.

 DESCRIPTION                                       8557-045/049
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    Intel 386SX
 Clock Speed                                       20
 Instruction Set                                   32 bit
 Addressing                                        24 Bit
 I/O Channel Width                                 16 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
  DMA Burst Mode Supported                         ???
 Upgradeable Processor Complex                     Yes
  Processor Upgrades Available                     20MHz IBM 386SLC (8g)
                                                   40/20MHz IBM 486SLC2 (9y)
                                                   60/20MHz IBM 486SLC3 (7g)
 Bus Masters Supported                             15
 Interleaved Memory                                Yes
 Matched Memory Cycle                              N/A (5i)
 Page Memory Logic                                 No (7a)

 MEMORY
 Standard (Motherboard)                            4MB (7b)
 Maximum (Motherboard)                             16MB
 Maximum (System)                                  16MB (2r)
 Total # of Motherboard SIMM Sockets               3
 # of Motherboard SIMM Sockets Available           2
 Standard Memory Speed (ns)                        70
 Memory Type                                       DRAM
  Memory Interleaving                              Yes
 Memory Cache Controller                           No
 Wait States: Motherboard                          0-2
        Adapter                                    N/A (8q)
 Memory Used: Motherboard                          2/4/8MB SIMMs (70ns)


ΓòÉΓòÉΓòÉ 10.7.1.2. PS/2 Model 57-045/049: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 57-045/049 header.

 DESCRIPTION                                       8557-045/049
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 BIOS Extensions Stored on Disk                    Yes (5v)
 Setup & Diags Stored on Disk                      Yes (5v)
 Optional Math Coprocessor                         387SX
  Coprocessor Speed                                20MHz
 Standard Graphics                                 VGA+
  8/16/32-bit Controller                           16
  132-Column Text Mode                             Yes
  Bus Master                                       No
  Video Memory (DRAM) Standard                     256K
 Maximum Graphics                                  XGA-2 (c)
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Adapter
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
  Resolutions Supported                            640x480 64K Colors
                                                   800x600 64K Colors
                                                   1024x768 256 Colors
                                                   1280x1024 16 Colors
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 RS232C Serial Ports                               1
  UART Chip Used                                   ???
  Maximum Speed (bits/second)                      345,600
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
  IBM Mouse Included                               Yes
   Mouse Resolution                                Up to 200 DPI, programmable
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 SCSI port                                         Yes (5c)
  Internal/External Connectors                     Yes/Yes
  On Motherboard/Adapter                           Motherboard


ΓòÉΓòÉΓòÉ 10.7.1.3. PS/2 Model 57-045/049: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 57-045/049 header.

 DESCRIPTION                                       8557-045/049
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     4
  # of 3.5"/5.25" Bays                             1/3 (6r)(6z)
  # of 3.5"/5.25" Bays Available                   0/2 (6t)
 Selectable Boot                                   Yes
  Bootable Physical Drives                         All
 Diskette Drives Standard                          1x2.88MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)(7t)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (j)(7t)
   Media Sensing                                   No
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      Optional (i)
   Media Sensing                                   No
  3.5" 2.88MB                                      Optional (i)
   Media Sensing                                   Yes
  Internal Drives Supported                        3
  External Drives Supported                        1
  Maximum # Diskette Drives                        4 (4n)
 Hard Disk Drives Standard                         1x80MB (045)
                                                   1x160MB (049)
  Drive Type                                       SCSI
  Encoding Method                                  RLL
  Drive Form Factor                                3.5"
  Average Access Rate (ms)                         17 (80MB)
                                                   16 (160MB)
  Sector Buffer Size                               32K
  Data Transfer Rate (/Second)                     1.35 MBytes (80MB)
                                                   1.5 MBytes (160MB)
  Average Latency (ms)                             8.3
  Rotational Speed (RPMs)                          3600
  # of Heads                                       4 (80MB)
                                                   8 (160MB)
  # of Platters                                    2 (80MB)
                                                   4 (160MB)
  Sectors per Track                                39
  Cylinders                                        1021
  Shock Rating (Gs): Operating                     10
            Non-operating                          50
  MTBF (Hours)                                     110,000
  Auto Park                                        Yes
  Maximum # of Internal HD Drives                  3
  Optional HD Sizes Available:                     170MB (13ms)
                                                   340MB (13ms)
                                                   540MB (8.7ms)
                                                   1GB (8.6ms)
                                                   2GB (9.5ms)
  Maximum Internal HD Capacity                     6GB (3z)(4o)(5k)
 Standard Hard Disk Controller Type                SCSI
  Bus Master                                       Yes
   16-bit Adapter                                  Standard
   32-bit Adapter With Cache                       Optional
  # of Devices Supported/Adapter                   7/15 (3r)
  # of Adapters Supported/System                   4
  Controller Data Transfer/second
   Controller to Micro Channel                     6.6 MBytes
   Controller to SCSI devices                      5.0 MBytes
  Interleave Factor                                1:1
 Internal Rewritable Optical Disk Drives           Optional
  Maximum Internal Drives Supported                1 (5k)
 Internal Optical CD-ROM Drives                    Optional
  Maximum Internal Drives Supported                1 (5k)

 TAPE STORAGE
 Internal Tape Drive Support
  3.5" Internal Tape Backup Unit                   Yes (9b)
  5.25" QIC SCSI Tape Drive                        No
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        No
 External Tape Drive Support
  5.25" QIC SCSI Tape Drive                        Yes
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        Yes


ΓòÉΓòÉΓòÉ 10.7.1.4. PS/2 Model 57-045/049: Expansion/Operating System ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 57-045/049 header.

 DESCRIPTION                                       8557-045/049
 EXPANSION
 Total Adapter Slots                               5
  # of Long/Short Slots                            5/0
  # of 8/16/32-bit Slots                           0/5/0 (3a)
  # of Slots with Video Extension                  1
 Available Slots                                   5
  Maximum RAM with Available Slots                 16MB (8q)

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        5.0 or later
 IBM OS/2                                          1.30.1 or later (r)
 IBM AIX PS/2                                      1.2.1 (with PTF P210900) or
                                                   later


ΓòÉΓòÉΓòÉ 10.7.1.5. PS/2 Model 57-045/049: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 57-045/049 header.

 DESCRIPTION                                       8557-045/049
 KEYBOARD
 122-Key Host-Connected Keyboard (6w)              Yes (8p)
 106-Key Japanese Keyboard                         No
 101-Key Enhanced Keyboard                         Yes (8p)
 84-Key Keyboard                                   Yes (8p)
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         10 (3 meters)

 SECURITY
 C2 Security Enabled                               No
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Keyboard Password                                 Yes
 Power-on Password                                 Yes
  Network Server Mode                              Yes


ΓòÉΓòÉΓòÉ 10.7.1.6. PS/2 Model 57-045/049: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 57-045/049 header.

 DESCRIPTION                                       8557-045/049
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
  Orientation                                      Horizontal/Vertical (6y)
  Vertical-Mount Floor Stand                       Standard
 Dimensions: Height                                6.7"
        Width                                      17.3"
        Depth                                      15.5"
 Weight (lbs):                                     32.0

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              197
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Manual
 Amperage at:  90-137 VAC                          6.0
        180-265 VAC                                3.0
 Operating Range: Temperature                      50-95┬░ F
           Rel. Humidity                           8-85%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  120
 Noise (Avg dB, Operating, 1m)                     ??
    Classification                                 3D

 MISCELLANEOUS
 Software Included                                 OS/2 2.0
 FCC Classification                                B
 UL Approval                                       UL 1950, 1st Edition
 CSA Approval                                      CSA22.2 No. 220-M1986
 Warranty Period                                   1 Year
  Int'l Traveler's Warranty Service                No
  Countries Warranty Valid In                      USA/Canada
 BIOS Model/Submodel/Revision                      F8/26/01 (Without Cached
                                                   Processor Option)
                                                   F8/25/06 (With Cached
                                                   Processor Option)
 Announcement Letter Numbers                       NDD91-547, 191-???
 Date Announced                                    06/11/91
 Date Withdrawn                                    12/22/92


ΓòÉΓòÉΓòÉ 10.7.1.7. PS/2 Model 57-045/049: Limitations ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 57-045/049 header.

 The following options and adapters are Not supported by this system.

     3363 Optical (WORM) Disk Drive models A11, B01
     5.25" 360K External Diskette Drive Adapter/A (6450245/#8760)
     5.25" 1.2MB Internal Diskette Drive (6451006; replaced by 6451066)
     All memory adapters
     All SIMMs except 2MB/4MB/8MB 70ns
     ARTIC PortMaster Adapter/A (53F2601/53F2604/53F2607) and options
     CD-ROM Drive (6450845/#0845; replaced by 6451113/#1113)
     Image Adapter/A (07F4400/#4324; replaced by 06G8215/#0072)
     Image Adapter/A 1MB (44F9626/#0072; replaced by 06G8215/#0072), 3MB
      (69F9724/#0073; replaced by 06G8216/#0073), 3MB 6091 (44F9621/#0074;
      replaced by 06G8217/#0074)


ΓòÉΓòÉΓòÉ 10.8. PS/2 Model 57 386SLC Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
IBM 386SLC-based Model 57 systems.  These are differentiated from the
"standard" Model 57s by the use of the 386SLC chip, rather than the 386SX.

Choose the section to which you wish to jump, below:

 20MHz Systems
 PS/2 Model 57-055/059/05F

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 10.8.1. PS/2 Model 57-055/059/05F Tech Specs ΓòÉΓòÉΓòÉ

The PS/2 Models 57-055, 57-059, and 57-05F are identical except for the hard
disk drive used.  Therefore both models will be covered by this one document.
Differences will be indicated by model number in parentheses.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Jump directly to the PS/2 Model 57 386SLC Systems header.


ΓòÉΓòÉΓòÉ 10.8.1.1. PS/2 Model 57-055/059/05F: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 57-055/059/05F header.

 DESCRIPTION                                       8557-055/059/05F
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    IBM 386SLC (8g)
 Clock Multiplying                                 No
 Internal/External Cache                           Internal (4u)
  Cache Size                                       8K
 Clock Speed (MHz)                                 20
 Instruction Set                                   32 bit
 Addressing                                        24 Bit
 I/O Channel Width                                 16 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
  DMA Burst Mode Supported                         ???
 Upgradeable Processor Complex                     Yes
  Processor Upgrades Available                     40/20MHz IBM 486SLC2 (9y)
                                                   60/20MHz IBM 486SLC3 (7g)
 Bus Masters Supported                             15
 Interleaved Memory                                Yes
 Matched Memory Cycle                              N/A (5i)
 Page Memory Logic                                 No (7a)

 MEMORY
 Standard (Motherboard)                            4MB(7b)/8MB(9u) (9z)
 Maximum (Motherboard)                             16MB
 Maximum (System)                                  16MB (2r)
 Total # of Motherboard SIMM Sockets               3
 # of Motherboard SIMM Sockets Available           2
 Standard Memory Speed (ns)                        70
 Memory Type                                       DRAM
  Memory Interleaving                              Yes
 Memory Cache Controller                           Yes  (8k)
  Internal/External Cache                          Internal
 Standard Memory Cache Size                        8K
 Wait States: Motherboard                          0
        Adapter                                    N/A (8q)
 Memory Used: Motherboard                          2/4/8MB SIMMs (70ns)


ΓòÉΓòÉΓòÉ 10.8.1.2. PS/2 Model 57-055/059/05F: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 57-055/059/05F header.

 DESCRIPTION                                       8557-055/059/05F
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 BIOS Extensions Stored on Disk                    Yes (5v)
 Setup & Diags Stored on Disk                      Yes (5v)
 Optional Math Coprocessor                         387SX (8m)
  Coprocessor Speed                                20MHz
 Standard Graphics                                 VGA+
  8/16/32-bit Controller                           16
  132-Column Text Mode                             Yes
  Bus Master                                       No
  Video Memory (DRAM) Standard                     256K
 Maximum Graphics                                  XGA-2 (c)
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Adapter
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
  Resolutions Supported                            640x480 64K Colors
                                                   800x600 64K Colors
                                                   1024x768 256 Colors
                                                   1280x1024 16 Colors
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 RS232C Serial Ports                               1
  UART Chip Used                                   ???
  Maximum Speed (bits/second)                      345,600
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
  IBM Mouse Included                               Yes
   Mouse Resolution                                Up to 200 DPI, programmable
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 SCSI port                                         Yes (5c)
  Internal/External Connectors                     Yes/Yes
  On Motherboard/Adapter                           Motherboard


ΓòÉΓòÉΓòÉ 10.8.1.3. PS/2 Model 57-055/059/05F: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 57-055/059/05F header.

 DESCRIPTION                                       8557-055/059/05F
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     4
  # of 3.5"/5.25" Bays                             1/3 (6r)(6z)
  # of 3.5"/5.25" Bays Available                   0/2 (6t)
 Selectable Boot                                   Yes
  Bootable Physical Drives                         All
 Diskette Drives Standard                          1x2.88MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)(7t)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (j)(7t)
   Media Sensing                                   No
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      Optional (i)
   Media Sensing                                   No
  3.5" 2.88MB                                      Optional (i)
   Media Sensing                                   Yes
  Internal Drives Supported                        3
  External Drives Supported                        1
  Maximum # Diskette Drives                        4 (4n)
 Hard Disk Drives Standard                         1x80MB (055)
                                                   1x160MB (059)
                                                   1x400MB (05F)
  Drive Type                                       SCSI
  Encoding Method                                  RLL
  Drive Form Factor                                3.5"
  Average Access Rate (ms)                         17 (80MB)
                                                   16 (160MB)
                                                   11 (400MB)
  Sector Buffer Size                               32K (80MB/160MB)
                                                   128K (400MB)
  Data Transfer Rate (/Second)                     1.35 MBytes (80MB)
                                                   1.5 MBytes (160MB)
                                                   2.0 (400MB)
  Average Latency (ms)                             8.3 (80MB/160MB)
                                                   6.95 (400MB)
  Rotational Speed (RPMs)                          3600 (80MB/160MB)
                                                   4316 (400MB)
  # of Heads                                       4 (80MB)
                                                   8 (160MB)
                                                   14 (400MB)
  # of Platters                                    2 (80MB)
                                                   4 (160MB)
                                                   8 (400MB)
  Sectors per Track                                39 (80MB/160MB)
                                                   48 (400MB)
  Cylinders                                        1021 (80MB/160MB)
                                                   1199 (400MB)
  Shock Rating (Gs): Operating                     10
            Non-operating                          50
  MTBF (Hours)                                     110,000 (80MB/160MB)
                                                   150,000 (400MB)
  Auto Park                                        Yes
  Maximum # of Internal HD Drives                  3
  Optional HD Sizes Available:                     170MB (13ms)
                                                   340MB (13ms)
                                                   540MB (8.7ms)
                                                   1GB (8.6ms)
                                                   2GB (9.5ms)
  Maximum Internal HD Capacity                     6GB (3z)(4o)(5k)
 Standard Hard Disk Controller Type                SCSI
  Bus Master                                       Yes
   16-bit Adapter                                  Standard
   32-bit Adapter With Cache                       Optional
  # of Devices Supported/Adapter                   7/15 (3r)
  # of Adapters Supported/System                   4
  Controller Data Transfer/Second
   Controller to Micro Channel                     6.6 MBytes
   Controller to SCSI devices                      5.0 MBytes
  Interleave Factor                                1:1
 Internal Rewritable Optical Disk Drives           Optional
  Maximum Internal Drives Supported                1 (5k)
 Internal Optical CD-ROM Drives                    Optional
  Maximum Internal Drives Supported                1 (5k)

 TAPE STORAGE
 Internal Tape Drive Support
  3.5" Internal Tape Backup Unit                   Yes (9b)
  5.25" QIC SCSI Tape Drive                        No
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        No
 External Tape Drive Support
  5.25" QIC SCSI Tape Drive                        Yes
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        Yes


ΓòÉΓòÉΓòÉ 10.8.1.4. PS/2 Model 57-055/059/05F: Expansion/Operating System ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 57-055/059/05F header.

 DESCRIPTION                                       8557-055/059/05F
 EXPANSION
 Total Adapter Slots                               5
  # of Long/Short Slots                            5/0
  # of 8/16/32-bit Slots                           0/5/0 (3a)
  # of Slots with Video Extension                  1
 Available Slots                                   5
  Maximum RAM with Available Slots                 16MB (8q)

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        5.0 or later
 IBM OS/2                                          1.30.1 or later (r)
 IBM AIX PS/2                                      1.2.1 (with PTF P210900) or
                                                   later


ΓòÉΓòÉΓòÉ 10.8.1.5. PS/2 Model 57-055/059/05F: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 57-055/059/05F header.

 DESCRIPTION                                       8557-055/059/05F
 KEYBOARD
 122-Key Host-Connected Keyboard (6w)              Yes (8p)
 106-Key Japanese Keyboard                         No
 101-Key Enhanced Keyboard                         Yes (8p)
 84-Key Keyboard                                   Yes (8p)
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         10 (3 meters)

 SECURITY
 C2 Security Enabled                               No
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Keyboard Password                                 Yes
 Power-on Password                                 Yes
  Network Server Mode                              Yes


ΓòÉΓòÉΓòÉ 10.8.1.6. PS/2 Model 57-055/059/05F: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 57-055/059/05F header.

 DESCRIPTION                                       8557-055/059/05F
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
  Orientation                                      Horizontal/Vertical (6y)
  Vertical-Mount Floor Stand                       Standard
 Dimensions: Height                                6.7"
        Width                                      17.3"
        Depth                                      15.5"
 Weight (lbs):                                     32.0

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              197
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Manual
 Amperage at:  90-137 VAC                          6.0
        180-265 VAC                                3.0
 Operating Range: Temperature                      50-95┬░ F
           Rel. Humidity                           8-80%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  120
 Noise (Avg dB, Operating, 1m)                     ??
    Classification                                 3D

 MISCELLANEOUS
 Software Included                                 OS/2 2.0
 FCC Classification                                B
 UL Approval                                       UL 1950, 1st Edition
 CSA Approval                                      CSA22.2 No. 220-M1986
 Warranty Period                                   1 Year
  Int'l Traveler's Warranty Service                No
  Countries Warranty Valid In                      USA/Canada
 BIOS Model/Submodel/Revision                      F8/25/06
 Announcement Letter Numbers                       NDD92-098 (055/059)
                                                   NDD92-405 (05F)
 Date Announced                                    02/25/92 (055/059)
                                                   08/11/92 (05F)
 Date Withdrawn                                    06/11/93


ΓòÉΓòÉΓòÉ 10.8.1.7. PS/2 Model 57-055/059/05F: Limitations ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 57-055/059/05F header.

 The following options and adapters are Not supported by this system.

     3363 Optical (WORM) Disk Drive models A11, B01
     5.25" 360K External Diskette Drive Adapter/A (6450245/#8760)
     5.25" 1.2MB Internal Diskette Drive (6451006; replaced by 6451066)
     All memory adapters
     All SIMMs except 2MB/4MB/8MB 70ns
     ARTIC PortMaster Adapter/A (53F2601/53F2604/53F2607) and options
     CD-ROM Drive (6450845/#0845; replaced by 6451113/#1113)
     Image Adapter/A (07F4400/#4324; replaced by 06G8215/#0072)
     Image Adapter/A 1MB (44F9626/#0072; replaced by 06G8215/#0072), 3MB
      (69F9724/#0073; replaced by 06G8216/#0073), 3MB 6091 (44F9621/#0074;
      replaced by 06G8217/#0074)


ΓòÉΓòÉΓòÉ 10.9. PS/2 Model CL57 386SX Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
386SX-based Model CL57 color laptop systems.

Choose the section to which you wish to jump, below:

 20MHz Systems
 PS/2 Model CL57-045

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 10.9.1. PS/2 Model CL57-045 Tech Specs ΓòÉΓòÉΓòÉ

Note:  This model has been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Jump directly to the PS/2 Model CL57 386SX Systems header.


ΓòÉΓòÉΓòÉ 10.9.1.1. PS/2 Model CL57-045: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model CL57-045 header.

 DESCRIPTION                                       8554-045
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    Intel 386SX
 Clock Speed                                       20 MHz
 Instruction Set                                   32 bit
 Addressing                                        24 Bit
 I/O Channel Width                                 16 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
  DMA Burst Mode Supported                         Yes
 Bus Masters Supported                             15
 Upgradeable Processor Complex                     No
 Matched Memory Cycle                              No
 Page Memory Logic                                 No (7a)

 MEMORY
 Standard (Motherboard)                            2MB
 Maximum (Motherboard)                             16MB (9e)
 Maximum (System)                                  16MB (9e)
 Total # of Motherboard Memory Sockets             2 (7c)
 # of Motherboard Memory Sockets Available         2 (7c)
 Memory Chip Speed (ns)                            80
 Memory Chip Type                                  IC DRAM
 Access to Memory Sockets                          Access cover on bottom of
                                                   system
 Wait States                                       0
 Memory Used: Motherboard                          2MB/4MB/8MB IC cards (8q)


ΓòÉΓòÉΓòÉ 10.9.1.2. PS/2 Model CL57-045: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model CL57-045 header.

 DESCRIPTION                                       8554-045
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 Suspend/Resume Feature                            Yes
 Sleep Mode Supported                              Yes
 Setup/Power Management S/W                        Yes
 LCD Indicators                                    Yes (9o)
 Optional Math Coprocessor                         387SX (6e)
  Coprocessor Speed                                20MHz
  Access to Math Coprocessor                       Access cover on bottom of
                                                   system
 Standard Graphics                                 VGA
  8/16/32-bit Controller                           8
  Bus Master                                       No
  Video Memory (DRAM) Standard                     256K
 Built-in Display                                  Yes
  Type                                             Color LCD
  Technology                                       Thin-Film Transistor (TFT)
                                                   Active Matrix
  Dimensions (Diag/H x W)                          10.4"/?"x?"
  # of Colors Concurrently                         16 (640x480)
                                                   256 (320x200)
  Color Palette                                    4,096 (640x480)
                                                   226,000 (320x200)
  Backlit/Sidelit                                  Side
  Supertwisted                                     Yes
  Contrast Ratio                                   50:1
  Detachable                                       No
  Screen Tilt                                      135┬░
  External monitor port                            Yes
   External Display Disables LCD                   No - Both are active
 Maximum Graphics                                  VGA
  8/16/32-bit Controller                           8
  Bus Master                                       No
  Video Memory (DRAM) Standard                     256K
 RS232C Serial Ports                               1
  UART Chip Used                                   ??????
   Maximum Speed (bits/second)                     19,200
  FIFO Mode Enabled                                No
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          2 (5x)
 Internal Modem                                    Optional (5x)
  Hayes-compatible                                 Yes
  Asynchronous/Synchronous                         Yes/Yes
  FAX capable                                      Yes
   Group III compatible                            Yes
   FAX software included                           Yes
   Send/Receive FAXes                              Yes/Yes
  Maximum speed (bps): Data                        2400
              FAX                                  9600
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          1
 CMOS Clock                                        Yes
  CMOS Battery Life (years)                        5
  Replaceable                                      Yes
 Power Source
  Battery/AC Adapter                               Both
  AC Adapter                                       Optional
  Quick Charger                                    N/A (Power Pack)
  Car Cigarette Lighter Adapter                    N/A
  Number of Batteries Supplied                     1
  Battery Type                                     Nickel Metal Hydride (NiMH)
  Length of Battery Charge                         Approx. 1 hr (9i)
  External Rechargeable Power Pack                 Optional
   Length of Battery Charge                        Approx. 2 hrs (9i)
  Non-Disruptive Battery Exchange                  Yes


ΓòÉΓòÉΓòÉ 10.9.1.3. PS/2 Model CL57-045: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model CL57-045 header.

 DESCRIPTION                                       8554-045
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     2
  # of 2.5"/3.5"/5.25" Bays                        1/1/0
  # of 2.5"/3.5"/5.25" Bays Available              0/0/0
 Diskette Drives Standard                          1x1.44MB
   Media Sensing                                   No
 Optional Diskette Drives                          No
  Internal Drives Supported                        1
  External Drives Supported                        0
  Maximum # Diskette Drives                        1
   Diskette Caching                                No
 Hard Disk Drives Standard                         1x85.9MB
  Maximum # of HD Drives                           1
  Drive Type                                       N/A
  Encoding Method                                  RLL
  Drive Form Factor                                2.5"
  Optional HD Drive Sizes Available                N/A
  Maximum Internal HD Capacity                     85.9MB
  Average Access Rate (ms)                         17
  Average Latency (ms)                             8.3
  Hard Disk Data Transfer/Second                   ??? MBytes
  Rotational Speed (RPMs)                          ????
  # of Heads                                       4
  # of Platters                                    ?
  Sectors per Track                                38
  # of Cylinders                                   1120
  Interleave Factor                                1:1
  Shock (Gs): Operating                            ??
         Non-operating                             ???
  Controller/Connector Type                        ESDI/Direct Bus Attach (DBA)
  Auto Park                                        Yes

 TAPE STORAGE
 Internal Tape Drive Support                       No
 External Tape Drive Support                       No


ΓòÉΓòÉΓòÉ 10.9.1.4. PS/2 Model CL57-045: Expansion/Operating Systems ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model CL57-045 header.

 DESCRIPTION                                       8554-045
 BUILT-IN EXPANSION SLOTS
 Total "Adapter" Slots                             1 (5x)(9f)
 Available Slots                                   1 (5x)
  Maximum RAM with Available Slots                 16MB
  # of Slots Required for Maximum                  0
 # of Slots Avail after Maximum                    1 (5x)

 EXTERNAL EXPANSION SUPPORT
 IBM 3550 Model 1 Expansion Unit                   No
 IBM 3550 Model 2 Expansion Unit                   No
 IBM Communications Cartridge                      No
 IBM Communications Cartridge I                    No
 IBM Communications Cartridge II                   Yes
  # of Drive Bays Provided                         0
  # of Adapter Slots Provided                      1 (9f)
   # of Long/Short Slots                           0/1
   # of 8/16/32-bit Slots                          0/1/0 (3a)
   # of Slots with Video Extension                 0
  Available Slots                                  1
 IBM Expansion Cartridge                           No

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        5.0 or later
 IBM OS/2                                          2.0 or later
 IBM AIX PS/2                                      No


ΓòÉΓòÉΓòÉ 10.9.1.5. PS/2 Model CL57-045: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model CL57-045 header.

 DESCRIPTION                                       8554-045
 KEYBOARD
 101-Key Enhanced Keyboard                         Yes (9g)
 84-Key Keyboard                                   Yes (9g)
 78-Key Keyboard                                   No
 External Keyboard Supported                       No
 Keyboard Slope                                    5┬░
 Trackball Integrated into Keyboard                Yes
 Pointing stick integrated into keybd              No
 Fast Keyboard Speed Setting                       Yes
 Quiet Keyboard Operation Mode                     Yes
 Keyboard Cord Length (ft)                         N/A
  Keyboard detachable                              No

 SECURITY
 C2 Security Enabled                               No
 Keylock-Locks Cover                               No
     Locks Keyboard                                No
 Keyboard Password                                 Yes
 Power-on Password                                 Yes
  Network Server Mode                              Yes


ΓòÉΓòÉΓòÉ 10.9.1.6. PS/2 Model CL57-045: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model CL57-045 header.

 DESCRIPTION                                       8554-045
 PHYSICAL FACTORS
 Footprint Type                                    Laptop
 Dimensions: Height                                2.8"
        Width                                      12.8"
        Depth                                      10.9"
 Weight (lbs): With Battery                        11.0
 Carrying Case                                     Optional
  Leather/Vinyl                                    Vinyl

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              N/A
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-265 VAC                          ???
 Operating Range: Temperature                      50-95┬░ F
           Rel. Humidity                           8-85%
 Maximum Operating Altitude(ft)                    8000
 Heat (BTUs/Hour)                                  136
 Noise (Avg dB, Operating, 1m)                     ??
    Classification                                 3D

 MISCELLANEOUS
 FCC Classification                                B
 Warranty Period                                   1 Year
  Int'l Traveler's Warranty Service                Yes
  Countries Warranty Valid In                      80+
 BIOS Model/Submodel/Revision                      F8/56/05
 BIOS Date                                         02/28/92
 Announcement Letter Numbers                       NDD92-172
 Date Announced                                    03/24/92
 Date Withdrawn                                    12/15/92


ΓòÉΓòÉΓòÉ 10.10. PS/2 Model M57 386SLC Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
IBM 386SLC-based Ultimedia Model M57 systems.  These are differentiated from
the "standard" Model 57s by the use of the 386SLC chip, rather than the 386SX,
and the addition of multimedia-related features.

Choose the section to which you wish to jump, below:

 20MHz Systems
 PS/2 Model M57-259

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 10.10.1. PS/2 Model M57-259 Tech Specs ΓòÉΓòÉΓòÉ

Note:  This model has been withdrawn from marketing. Choose the section to
which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Jump directly to the PS/2 Model M57 386SLC Systems header.


ΓòÉΓòÉΓòÉ 10.10.1.1. PS/2 Model M57-259: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the M57-259 header.

 DESCRIPTION                                       8557-259
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    IBM 386SLC (8g)
 Clock Multiplying                                 No
 Internal/External Cache                           Internal (4u)
  Cache Size                                       8K
 Clock Speed (MHz)                                 20
 Instruction Set                                   32 bit
 Addressing                                        24 Bit
 I/O Channel Width                                 16 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
  DMA Burst Mode Supported                         ???
 Upgradeable Processor Complex                     40/20MHz IBM 486SLC2 (9y)
 Bus Masters Supported                             15
 Interleaved Memory                                Yes
 Matched Memory Cycle                              N/A (5i)
 Page Memory Logic                                 No (7a)

 MEMORY
 Standard (Motherboard)                            4MB(7b)/8MB(9u) (9z)
 Maximum (Motherboard)                             16MB
 Maximum (System)                                  16MB (2r)
 Total # of Motherboard SIMM Sockets               3
 # of Motherboard SIMM Sockets Available           2
 Standard Memory Speed (ns)                        70
 Memory Type                                       DRAM
  Memory Interleaving                              Yes
 Memory Cache Controller                           Yes  (8k)
  Internal/External Cache                          Internal
 Standard Memory Cache Size                        8K
 Optional External Memory Cache                    N/A
 Wait States: Motherboard                          0
        Adapter                                    N/A (8q)
 Memory Used: Motherboard                          2/4/8MB SIMMs (70ns)


ΓòÉΓòÉΓòÉ 10.10.1.2. PS/2 Model M57-259: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the M57-259 header.

 DESCRIPTION                                       8557-259
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 BIOS Extensions Stored on Disk                    Yes (5v)
 Setup & Diags Stored on Disk                      Yes (5v)
 Optional Math Coprocessor                         387SX (8m)
  Coprocessor Speed                                20MHz
 Standard Graphics                                 VGA/XGA (8n)
  8/16/32-bit Controller                           32
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
 Maximum Graphics                                  XGA-2 (c)
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Adapter
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
  Resolutions Supported                            640x480 64K Colors
                                                   800x600 64K Colors
                                                   1024x768 256 Colors
                                                   1280x1024 16 Colors
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 Enhanced Audio Features
  Audio Card Used (Standard)                       M-Audio Capture and Playback
                                                   Adapter/A (2a)
  Audio Compression Supported                      Yes
  Audio Sampling Supported                         16K
  FM Quality Stereo Sound                          Yes
  Connected to Multimedia Panel                    Yes
 Multimedia Panel Features
  Volume Control                                   Yes
  Stereo Headphone Jack                            Yes
  Mono Microphone Jack                             Yes
  Enhanced Loudspeaker                             Yes
 RS232C Serial Ports                               1
  UART Chip Used                                   ???
  Maximum Speed (bits/second)                      345,600
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
  IBM Mouse Included                               Yes
   Mouse Resolution                                Up to 200 DPI, programmable
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 SCSI port                                         Yes (5c)
  Internal/External Connectors                     Yes/Yes
  On Motherboard/Adapter                           Motherboard


ΓòÉΓòÉΓòÉ 10.10.1.3. PS/2 Model M57-259: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the M57-259 header.

 DESCRIPTION                                       8557-259
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     4
  # of 3.5"/5.25" Bays                             1/3 (6r)(6z)
  # of 3.5"/5.25" Bays Available                   0/1 (8l)
 Selectable Boot                                   Yes
  Bootable Physical Drives                         All
 Diskette Drives Standard                          1x2.88MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)(7t)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (j)(7t)
   Media Sensing                                   No
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      Optional (i)
   Media Sensing                                   No
  3.5" 2.88MB                                      Optional (i)
   Media Sensing                                   Yes
  Internal Drives Supported                        3
  External Drives Supported                        1
  Maximum # Diskette Drives                        4 (4n)
 Hard Disk Drives Standard                         1x160MB
  Drive Type                                       SCSI
  Encoding Method                                  RLL
  Drive Form Factor                                3.5"
  Average Access Rate (ms)                         16
  Sector Buffer Size                               32K
  Data Transfer Rate (/second)                     1.5 MBytes
  Rotational Speed (RPMs)                          3600
  # of Heads                                       8
  # of Platters                                    4
  Sectors per Track                                39
  Cylinders                                        1021
  Shock Rating (Gs): Operating                     10
            Non-operating                          50
  MTBF (Hours)                                     110,000
  Auto Park                                        Yes
  Maximum # of Internal HD Drives                  2
  Optional HD Sizes Available:                     170MB (13ms)
                                                   340MB (13ms)
                                                   540MB (8.7ms)
                                                   1GB (8.6ms)
                                                   2GB (9.5ms)
  Maximum Internal HD Capacity                     4GB (3z)(4o)(5k)
 Standard Hard Disk Controller Type                SCSI
  Bus Master                                       Yes
   16-bit Adapter                                  Standard
   32-bit Adapter With Cache                       Optional
  # of Devices Supported/Adapter                   7/15 (3r)
  # of Adapters Supported/System                   4
  Controller Data Transfer/second
   Controller to Micro Channel                     6.6 MBytes
   Controller to SCSI devices                      5.0 MBytes
  Interleave Factor                                1:1
 Internal Rewritable Optical Disk Drives           Optional
  Maximum Internal Drives Supported                1 (5k)
 Internal Optical CD-ROM Drives                    Standard
  (Double-click here for specs)
  Maximum Internal Drives Supported                1 (5k)
  Software CD Included                             Yes (8r)
  Diagnostic CD Included                           Yes

 TAPE STORAGE
 Internal Tape Drive Support
  3.5" Internal Tape Backup Unit                   Yes (9b)
  5.25" QIC SCSI Tape Drive                        No
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        No
 External Tape Drive Support
  5.25" QIC SCSI Tape Drive                        Yes
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        Yes


ΓòÉΓòÉΓòÉ 10.10.1.4. PS/2 Model M57-259: Expansion/Operating System ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the M57-259 header.

 DESCRIPTION                                       8557-259
 EXPANSION
 Total Adapter Slots                               5
  # of Long/Short Slots                            5/0
  # of 8/16/32-bit Slots                           0/5/0 (3a)
  # of Slots with Video Extension                  1
 Available Slots                                   3 (8o)
  Maximum RAM with Available Slots                 16MB (8q)

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        5.0 or later (8r)
 IBM OS/2                                          2.0 or later (8r)
 IBM AIX PS/2                                      1.2.1 (with PTF P210900) or
                                                   later


ΓòÉΓòÉΓòÉ 10.10.1.5. PS/2 Model M57-259: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the M57-259 header.

 DESCRIPTION                                       8557-259
 KEYBOARD
 122-Key Host-Connected Keyboard (6w)              Yes (8p)
 106-Key Japanese Keyboard                         No
 101-Key Enhanced Keyboard                         Yes (8p)
 84-Key Keyboard                                   Yes (8p)
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         10 (3 meters)

 SECURITY
 C2 Security Enabled                               No
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Keyboard Password                                 Yes
 Power-on Password                                 Yes
  Network Server Mode                              Yes


ΓòÉΓòÉΓòÉ 10.10.1.6. PS/2 Model M57-259: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the M57-259 header.

 DESCRIPTION                                       8557-259
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
  Orientation                                      Horizontal/Vertical (6y)
  Vertical-Mount Floor Stand                       Optional
 Dimensions: Height                                6.7"
        Width                                      17.3"
        Depth                                      15.5"
 Weight (lbs):                                     37.0

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              197
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Manual
 Amperage at:  90-137 VAC                          6.0
         180-265 VAC                               3.0
 Operating Range: Temperature                      50-95┬░ F
          Rel. Humidity                            8-85%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  189
 Noise (Avg dB, Operating, 1m)                     ??
    Classification                                 3D

 MISCELLANEOUS
 Software Included                                 (8r)
 FCC Classification                                B
 UL Approval                                       UL 1950, 1st Edition
 CSA Approval                                      CSA22.2 No. 220-M1986
 Warranty Period                                   1 Year
  Int'l Traveler's Warranty Service                No
  Countries Warranty Valid In                      USA/Canada
 BIOS Model/Submodel/Revision                      F8/25/06
 Date Announced                                    02/25/92
 Date Withdrawn                                    06/11/93


ΓòÉΓòÉΓòÉ 10.10.1.7. PS/2 Model M57-259: Limitations ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model M57-259  header.

 The following options and adapters are Not supported by this system.

     3363 Optical (WORM) Disk Drive models A11, B01
     5.25" 360K External Diskette Drive Adapter/A (6450245/#8760)
     5.25" 1.2MB Internal Diskette Drive (6451006; replaced by 6451066)
     All memory adapters
     All SIMMs except 2MB/4MB/8MB 70ns
     ARTIC PortMaster Adapter/A (53F2601/53F2604/53F2607) and options
     CD-ROM Drive (6450845/#0845; replaced by 6451113/#1113)
     Image Adapter/A (07F4400/#4324; replaced by 06G8215/#0072)
     Image Adapter/A 1MB (44F9626/#0072; replaced by 06G8215/#0072), 3MB
      (69F9724/#0073; replaced by 06G8216/#0073), 3MB 6091 (44F9621/#0074;
      replaced by 06G8217/#0074)


ΓòÉΓòÉΓòÉ 10.11. PS/2 Model 60 286 Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
80286-based Model 60 systems.

Choose the section to which you wish to jump, below:

 10MHz Systems
 PS/2 Model 60-041/071

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 10.11.1. PS/2 Model 60-041/071 Tech Specs ΓòÉΓòÉΓòÉ

The PS/2 Models 60-041, and 071 are identical except for the size and type of
hard disk drive used.  Therefore both models will be covered by this one
document. Differences will be indicated by model number in parentheses.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Jump directly to the PS/2 Model 60 286 Systems header.


ΓòÉΓòÉΓòÉ 10.11.1.1. PS/2 Model 60-041/071: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

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 DESCRIPTION                                       8560-041/071
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    80286
 Clock Speed                                       10 MHz
 Instruction Set                                   16 bit
 Addressing                                        24 bit
 I/O Channel Width                                 16/8 Bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
 DMA Burst Mode Supported                          Yes
 Bus Masters Supported                             15
 Upgradeable Processor Complex                     No

 MEMORY
 Standard (Motherboard)                            1MB (5h)
 Maximum (Motherboard)                             1MB
 Maximum (System)                                  16MB
 Total # of Sys Bd SIMM Sockets                    4
 # of Sys Bd SIMM Sockets Avail                    0
 Memory Chip Speed (ns)                            150
 Memory Chip Type                                  DRAM
 Memory Cache Controller                           No
 Wait States: Motherboard                          1
        Adapter                                    0
 Memory Used: Motherboard                          256K SIMM


ΓòÉΓòÉΓòÉ 10.11.1.2. PS/2 Model 60-041/071: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 60-041/071 header.

 DESCRIPTION                                       8560-041/071
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     No
 Optional Math Coprocessor                         80287
  Coprocessor Speed                                10MHz
 Standard Graphics                                 VGA
  8/16/32-bit Controller                           8
  Bus Master                                       No
  Video Memory (DRAM) Standard                     256K
 Maximum Graphics                                  8514/A (c)
  8/16/32-bit Controller                           16
  Bus Master                                       No
  Video Memory (DRAM) Standard                     1MB
 RS232C Serial Ports                               1
  UART Chip Used                                   NS16550
  Maximum Speed (bits/second)                      19,200
  FIFO Mode Enabled                                No
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes


ΓòÉΓòÉΓòÉ 10.11.1.3. PS/2 Model 60-041/071: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 60-041/071 header.

 DESCRIPTION                                       8560-041/071
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     4
  # of 3.5"/5.25" Bays                             2/2
  # of 3.5"/5.25" Bays Available                   1/1
 Diskette Drives Standard                          1x1.44MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)
  5.25" 1.2MB                                      Optional (j)(2z)
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      Optional (i)(2j)
 Internal Drives Supported                         3 (2z)
  External Drives Supported                        1
  Maximum # Diskette Drives                        4 (2z)
 Hard Disk Drives Standard                         1x44MB (041)
                                                   1x70MB (071)
  Controller Type                                  ST-506 (041)
                                                   ESDI
  Drive Type                                       31/32 (44MB)
                                                   ESDI (70MB)
  Drive Form Factor                                5.25"
  Average Access Rate (ms)                         40 (44MB)
                                                   30 (70MB)
  Data Transfer Rate (Mbits/second)                5.0 (44MB)
                                                   10.0 (70MB)
  Encoding Method                                  MFM
  # of Heads                                       7/5 (44MB)
                                                   7 (70MB)
  # of Platters                                    4/3 (44MB)
                                                   4 (70MB)
  Sectors per Track                                17/17 (44MB)
                                                   36 (70MB)
  Cylinders                                        733/1024 (44MB)
                                                   583 (70MB)
  Interleave Factor                                1:1
  Auto Park                                        Yes
  Maximum # of HD Drives                           2 (2z)
  Optional HD Drive Sizes Available                44MB (40ms) (041)
                                                   70MB (30ms) (071)
                                                   115MB (28ms) (071)
                                                   314MB (23ms} (071)
  Maximum Internal HD Capacity                     88MB (041)
                                                   384MB (071)
 Maximum # of DD and HD Drives                     5

 TAPE STORAGE
 Internal Tape Drive Support                       Yes
  3.5" Internal Tape Backup Unit                   Yes (2j)
  5.25" QIC SCSI Tape Drive                        No
  5.25" 4mm SCSI Tape Drive                        Yes (7i)
  5.25" 8mm SCSI Tape Drive                        No
 External Tape Drive Support
  5.25" 6157 Streaming Tape                        Models 001/002 (c)
  5.25" QIC SCSI Tape Drive                        Yes (4l)
  5.25" 4mm SCSI Tape Drive                        Yes (4l)
  5.25" 8mm SCSI Tape Drive                        Yes (4l)


ΓòÉΓòÉΓòÉ 10.11.1.4. PS/2 Model 60-041/071: Expansion/Operating Systems ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 60-041/071 header.

 DESCRIPTION                                       8560-041/071
 EXPANSION
 Total Adapter Slots                               8
  # of Long/Short Slots                            8/0
  # of 8/16/32-bit Slots                           0/8/0 (3a)
  # of Slots with Video Extension                  1
 Available Slots                                   7 (2o)
  Max. RAM with Available Slots                    16MB
  Max. RAM Using Only 1 Slot                       9MB (2l)
  # of Slots Required for Maximum                  2
 # of Slots Avail after Maximum                    5

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        3.3 or later
 IBM OS/2                                          1.0 through 1.30.2
 IBM AIX PS/2                                      No


ΓòÉΓòÉΓòÉ 10.11.1.5. PS/2 Model 60-041/071: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 60-041/071 header.

 DESCRIPTION                                       8560-041/071
 KEYBOARD
 101-Key Enhanced Keyboard                         Yes
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         10.0

 SECURITY
 C2 Security Enabled                               No
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Keyboard Password                                 Yes
 Power-on Password                                 Yes
  Network Server Mode                              Yes


ΓòÉΓòÉΓòÉ 10.11.1.6. PS/2 Model 60-041/071: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 60-041/071 header.

 DESCRIPTION                                       8560-041/071
 PHYSICAL FACTORS
 Footprint Type                                    Floor-standing
 Dimensions: Height                                23.5"
       Width                                       6.5"
       Depth                                       19.0"
 Weight (lbs)                                      47.0

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              207 (041)
                                                   225 (071)
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-137 VAC                          5.3
        180-265 VAC                                2.7
 Maximum Current Leakage (uA)                      <500
 Operating Range: Temperature                      60-90┬░ F
          Rel. Humidity                            8-80%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  1240
 Noise Level Classification                        1
  Noise (Avg dB, Operating, 1m)                    46

 MISCELLANEOUS
 FCC Classification                                B
 Warranty Period                                   1 Year
 BIOS Model/Submodel/Revision                      FC/05/00
 Announcement Letter Numbers                       NDD87-263, 187-???
 Date Announced                                    04/02/87
 Date Withdrawn                                    10/31/90


ΓòÉΓòÉΓòÉ 10.12. PS/2 Model 65 386SX Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
386SX-based Model 65SX systems.

Choose the section to which you wish to jump, below:

 16MHz Systems
 PS/2 Model 65-061/121/321

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 10.12.1. PS/2 Model 65-061/121/321 Tech Specs ΓòÉΓòÉΓòÉ

The PS/2 Models 65-061, 65-121, and 65-321 are identical except for the hard
disk drive used.  Therefore both models will be covered by this one document.
Differences will be indicated by model number in parentheses.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Jump directly to the PS/2 Model 65 Systems header.


ΓòÉΓòÉΓòÉ 10.12.1.1. PS/2 Model 65-061/121/321: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 65-061/121/321 header.

 ARCHITECTURE                                      8565-061/121/321
 Bus Type                                          Micro Channel
 Microprocessor                                    Intel 386SX
 Clock Speed                                       16 MHz
 Instruction Set                                   32 Bit
 Addressing                                        24 bit
 I/O Channel Width                                 16 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
 DMA Burst Mode Supported                          Yes
 Bus Masters Supported                             15
 Upgradeable Processor Complex                     No
 Matched Memory Cycle                              No
 Page Memory Logic                                 No (7a)

 MEMORY
 Standard (Motherboard)                            2MB (2w)
 Maximum (Motherboard)                             8MB (4k)
 Maximum Addressable (System)                      16MB  (2r)
 Total # of Sys Bd SIMM Sockets                    2
 # of Sys Bd SIMM Sockets Avail                    1
 Memory Chip Speed (ns)                            100/85 (2s)
 Memory Chip Type                                  DRAM
 Memory Cache Controller                           No
 Wait States: Motherboard                          0-2
 Memory Used: Motherboard                          1MB/2MB/4MB SIMMs


ΓòÉΓòÉΓòÉ 10.12.1.2. PS/2 Model 65-061/121/321: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 65-061/121/321 header.

 STANDARD FEATURES                                 8565-061/121/321
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 Optional Math Coprocessor                         387SX
  Co-processor Speed                               16MHz
 Standard Graphics                                 VGA
  8/16/32-bit Controller                           8
  On Motherboard/Adapter                           Adapter
  132-Column Text Mode                             No
  Bus Master                                       No
  Video Memory (DRAM) Standard                     256K
  ISO 9241 Part 3 Compliant                        No (1w)
 Maximum Graphics                                  XGA-2 (c)
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Adapter
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
  Resolutions Supported                            640x480 64K Colors
                                                   800x600 64K Colors
                                                   1024x768 256 Colors
                                                   1280x1024 16 Colors
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 RS232C Serial Ports Standard                      1
  UART Chip Used                                   NS16550AFN
  Maximum Speed (bits/second)                      19,200
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              15
  Replaceable                                      No
 SCSI port                                         Yes (5c)
  Internal/External Connectors                     Yes/Yes
  On Motherboard/Adapter                           Adapter


ΓòÉΓòÉΓòÉ 10.12.1.3. PS/2 Model 65-061/121/321: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 65-061/121/321 header.

 DISK STORAGE                                      8565-061/121/321
 Internal Disk/Tape Drive Bays                     5 or 6 (3v)
  # of 3.5"/5.25" Bays                             4/1 or 6/0 (3v)
  # of 3.5"/5.25" Bays Available                   2/1 or 4/0 (3v)
 Diskette Drives Standard                          1x1.44MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (j)(3t)
   Media Sensing                                   No
  3.5" 720K                                        N/A (y)
  3.5" 1.44MB                                      Optional (i)(2j)
   Media Sensing                                   No
  3.5" 2.88MB                                      No
  Internal Drives Supported                        3 (3t)
  External Drives Supported                        1 (4n)
  Maximum # Diskette Drives                        4 (3t)(4n)
 Hard Disk Drives Standard                         1x60MB (061)
                                                   1x120MB (121)
                                                   1x320MB (321)
  Drive Type                                       SCSI
  Encoding Method                                  MFM (60MB/120MB)
                                                   RLL (320MB)
  Sector Buffer Size                               32K (60MB/120MB)
                                                   64K (320MB)
  Data Transfer Rate (/second)                     1.25 MBytes (60MB/120MB)
                                                   2.0 Mbytes (320MB)
  Rotational Speed (RPMs)                          3600 (60MB/120MB)
                                                   4613 (320MB)
  # of Heads                                       4 (60MB)
                                                   8 (120MB)
                                                   14 (320MB)
  # of Platters                                    2 (60MB)
                                                   4 (120MB)
                                                   8 (320MB)
  Sectors per Track                                26 (60MB)
                                                   32 (120MB)
                                                   48 (320MB)
  Cylinders                                        762 (60MB)
                                                   920 (120MB)
                                                   949 (320MB)
  Shock Rating (Gs): Operating                     ?? (60MB)
                                                   ?? (120MB)
                                                   10 (320MB)
          Non-Operating                            ?? (60MB)
                                                   ?? (120MB)
                                                   35 (320MB)
  MTBF (Hours)                                     ??? (60MB)
                                                   ??? (120MB)
                                                   150,000 (320MB)
  Auto Park                                        Yes
  Drive Form Factor                                3.5"
  Maximum # of Internal HD Drives                  3 or 4 (3v)
  Optional HD Sizes Available:                     170MB (13ms)
                                                   340MB (13ms)
                                                   540MB (8.7ms)
                                                   1GB (8.6ms)
                                                   2GB (9.5ms)
  Maximum Internal HD Capacity                     8GB (3z)(4o)(5k)
 Standard Hard Disk Controller Type                SCSI
  Bus Master                                       Yes
   16-bit Adapter                                  Standard
   32-bit Adapter with Cache                       Optional
  # of Devices Supported/Adapter                   7/15 (3r)
  # of Adapters Supported/System                   4
  Controller Data Transfer/second
   Controller to Micro Channel                     6.6 MBytes
   Controller to SCSI Devices                      5.0 MBytes
  Interleave Factor                                1:1
 Optional 2nd Controller                           ESDI (4q)
 Internal Rewritable Optical Disk Drives           Optional
  Maximum Internal Drives Supported                1 (5k)
 Internal Optical CD-ROM Drives                    Optional
  Maximum Internal Drives Supported                1 (5k)

 TAPE STORAGE
 Internal Tape Drive Support
  3.5" Internal Tape Backup Unit                   Yes (2j)
  5.25" QIC SCSI Tape Drive                        No
  5.25" 4mm SCSI Tape Drive                        No
  5.25" 8mm SCSI Tape Drive                        No
 External Tape Drive Support
  5.25" 6157 Streaming Tape                        Models 001/002 (c)
  5.25" QIC SCSI Tape Drive                        Yes (4l)
  5.25" 4mm SCSI Tape Drive                        Yes (4l)
  5.25" 8mm SCSI Tape Drive                        Yes (4l)


ΓòÉΓòÉΓòÉ 10.12.1.4. PS/2 Model 65-061/121/321: Expansion/Operating Systems ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 65-061/121/321 header.

 EXPANSION                                         8565-061/121/321
 Total Adapter Slots                               8
  # of Long/Short Slots                            8/0
  # of 8/16/32-bit Slots                           0/8/0  (3a)(3y)
  # of Slots with Video Extension                  1
 Available Slots                                   7
  Maximum RAM with Available Slots                 16MB
  Maximum RAM Using Only 1 Slot                    16MB (3d)
  # of Slots Required for Maximum                  1
 # of Slots Avail after Maximum                    6

 OPERATING SYSTEM SUPPORT
 IBM PC/DOS                                        3.3 or later
 IBM OS/2                                          1.2 or later
 IBM AIX PS/2                                      1.2.1 (with the Golden PTF)
                                                   or later


ΓòÉΓòÉΓòÉ 10.12.1.5. PS/2 Model 65-061/121/321: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 65-061/121/321 header.

 KEYBOARD                                          8565-061/121/321
 101-Key Enhanced Keyboard                         Yes
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         10.0

 SECURITY
 C2 Security Enabled                               No
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Keyboard Password                                 Yes
 Power-on Password                                 Yes
  Network Server Mode                              Yes


ΓòÉΓòÉΓòÉ 10.12.1.6. PS/2 Model 65-061/121/321: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 65-061/121/321 header.

 PHYSICAL FACTORS                                  8565-061/121/321
 Footprint Type                                    Floor-standing
 Dimensions: Height                                23.5"
       Width                                       6.5"
       Depth                                       19.0"
 Weight (lbs)                                      52.0

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              250
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-137 VAC                          5.3
        180-265 VAC                                2.7
 Maximum Current Leakage (uA)                      <500
 Operating Range: Temperature                      60-90┬░ F
          Rel. Humidity                            8-80%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  1218
 Noise Level Classification                        3D
  Noise (Avg dB, Operating, 1m)                    54

 MISCELLANEOUS
 FCC Classification                                B
 Warranty Period                                   1 Year
 BIOS Model/Submodel/Revision                      F8/1C/00
 Announcement Letter Numbers                       NDD90-221, 191-??? (061/121)
                                                   NDD90-446, 191-??? (321)
 Date Announced                                    03/20/90
 Date Withdrawn                                    07/23/91


ΓòÉΓòÉΓòÉ 10.13. PS/2 Model 70 386DX Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
Intel 386DX-based Model 70 systems.

Choose the section to which you wish to jump, below:

 16MHz Systems                                     25MHz Systems
 PS/2 Model 70-E61                                 PS/2 Model 70-A61/A21
                                                   PS/2 Model 70-A81/A16
 20MHz Systems
 PS/2 Model 70-061/121
 PS/2 Model 70-081/161

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 10.13.1. PS/2 Model 70-E61 Tech Specs ΓòÉΓòÉΓòÉ

Note:  This product has been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Jump directly to the PS/2 Model 70 386DX Systems header.


ΓòÉΓòÉΓòÉ 10.13.1.1. PS/2 Model 70-E61: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 70-E61 header.

 DESCRIPTION                                       8570-E61
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    Intel 386DX
 Clock Speed                                       16 MHz
 Instruction Set                                   32 Bit
 Addressing                                        32 Bit
 I/O Channel Width                                 32/16 Bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
 DMA Burst Mode Supported                          Yes
 Bus Masters Supported                             15
 Upgradeable Processor Complex                     No
 Matched Memory Cycle                              Yes
 Page Memory Logic                                 Yes

 MEMORY
 Standard (Motherboard)                            1MB/2MB (4e)
 Maximum (Motherboard)                             6MB
 Maximum (System)                                  16MB (2r)
 Total # of Sys Bd SIMM Sockets                    3
 # of Sys Bd SIMM Sockets Avail                    2
 Memory Chip Speed (ns)                            85
 Memory Chip Type                                  DRAM
 Memory Cache Controller                           No
 Wait States: Motherboard                          0-2
        Adapter                                    0-2
 Memory Used: Motherboard                          1MB/2MB SIMM


ΓòÉΓòÉΓòÉ 10.13.1.2. PS/2 Model 70-E61: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 70-E61 header.

 DESCRIPTION                                       8570-E61
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 Optional Math Coprocessor                         387
  Coprocessor Speed                                16MHz
 Standard Graphics                                 VGA
  8/16/32-bit Controller                           8
  Bus Master                                       No
  Video Memory (DRAM) Standard                     256K
 Maximum Graphics                                  XGA-2 (c)
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Adapter
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
  Resolutions Supported                            640x480 64K Colors
                                                   800x600 64K Colors
                                                   1024x768 256 Colors
                                                   1280x1024 16 Colors
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 RS232C Serial Ports                               1
  UART Chip Used                                   NS16550A
  Maximum Speed (bits/second)                      19,200
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes


ΓòÉΓòÉΓòÉ 10.13.1.3. PS/2 Model 70-E61: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 70-E61 header.

 DESCRIPTION                                       8570-E61
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     3
  # of 3.5"/5.25" Bays                             3/0
  # of 3.5"/5.25" Bays Available                   1/0
 Diskette Drives Standard                          1x1.44MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (g)
   Media Sensing                                   No
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      Optional (i)(2j)
   Media Sensing                                   No
  3.5" 2.88MB                                      No
  Internal Drives Supported                        2
  External Drives Supported                        1
  Maximum # Diskette Drives                        3
 Hard Disk Drives Standard                         1x60MB
  Drive Type                                       N/A
  Drive Form Factor                                3.5"
  Maximum # of HD Drives                           1
  Optional HD Drive Sizes Available                N/A
  Maximum Internal HD Capacity                     60MB
  Average Access Rate (ms)                         27
  Encoding Method                                  MFM
  Data Transfer Rate (Mb/second)                   8.4
  Rotational Speed (RPMs)                          3600
  # of Heads                                       6
  # of Platters                                    3
  Sectors per Track                                26
  Cylinders                                        762
  Interleave Factor                                1:1
  Controller/Connector Type                        ESDI/36-pin Direct Bus
                                                   Attach (DBA)
  Auto Park                                        Yes
 Maximum # of DD and HD Drives                     4

 TAPE STORAGE
 Internal Tape Drive Support
 3.5" Internal Tape Backup Unit                    Yes (2j)
  3.5" Internal Tape Backup Unit                   Yes
  5.25" QIC SCSI Tape Drive                        No
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        No
 External Tape Drive Support
  5.25" 6157 Streaming Tape                        Models 001/002 (c)
  5.25" QIC SCSI Tape Drive                        Yes
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        Yes


ΓòÉΓòÉΓòÉ 10.13.1.4. PS/2 Model 70-E61: Expansion/Operating System ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 70-E61 header.

 DESCRIPTION                                       8570-E61
 EXPANSION
 Total Adapter Slots                               3
  # of Long/Short Slots                            3/0
  # of 8/16/32-bit Slots                           0/1/2 (3a)
  # of Slots with Video Extension                  1
  Non-RAM use of 32-bit Slots                      Yes
 Available Slots                                   3
  Maximum RAM with Available Slots                 16MB
  Maximum RAM Using Only 1 Slot                    16MB (3b)
  # of Slots Required for Maximum                  1
 # of Slots Avail after Maximum                    2

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        3.3 or later
 IBM OS/2                                          1.0 or later
 IBM AIX PS/2                                      1.1 or later


ΓòÉΓòÉΓòÉ 10.13.1.5. PS/2 Model 70-E61: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 70-E61 header.

 DESCRIPTION                                       8570-E61
 KEYBOARD
 101-Key Enhanced Keyboard                         Yes
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         6.0

 SECURITY
 C2 Security Enabled                               No
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Keyboard Password                                 Yes
 Power-on Password                                 Yes
  Network Server Mode                              Yes


ΓòÉΓòÉΓòÉ 10.13.1.6. PS/2 Model 70-E61: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 70-E61 header.

 DESCRIPTION                                       8570-E61
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
 Dimensions: Height                                5.5"
       Width                                       14.1"
       Depth                                       16.5"
 Weight (lbs)                                      21.0
 Max Monitor Weight Supported by Cabinet (lbs)     28 (6o)

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              132
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-137 VAC                          2.7
        180-265 VAC                                1.4
 Maximum Current Leakage (uA)                      <500
 Operating Range: Temperature                      60-90┬░ F
          Rel. Humidity                            8-80%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  751
 Noise Level Classification                        1
  Noise (Avg dB, Operating, 1m)                    240

 MISCELLANEOUS
 FCC Classification                                B
 Warranty Period                                   1 Year
 BIOS Model/Submodel/Revision                      F8/09/00
 Announcement Letter Numbers                       NDD88-261, 191-???
 Date Announced                                    06/07/88
 Date Withdrawn                                    07/23/91


ΓòÉΓòÉΓòÉ 10.13.2. PS/2 Model 70-061/121  Tech Specs ΓòÉΓòÉΓòÉ

The PS/2 Models 70-061 and 70-121 are identical except for the hard disk drive
used.  Therefore both models will be covered by this one document. Differences
will be indicated by model number in parentheses.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Jump directly to the PS/2 Model 70 386DX Systems header.


ΓòÉΓòÉΓòÉ 10.13.2.1. PS/2 Model 70-061/121: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 70-061/121 header.

 DESCRIPTION                                       8570-061/121
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    Intel 386DX
 Clock Speed                                       20 MHz
 Instruction Set                                   32 Bit
 Addressing                                        32 Bit
 I/O Channel Width                                 32/16 Bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
  DMA Burst Mode Supported                         Yes
 Bus Masters Supported                             15
 Upgradeable Processor Complex                     No
 Matched Memory Cycle                              Yes
 Page Memory Logic                                 Yes

 MEMORY
 Standard (Motherboard)                            2MB
 Maximum (Motherboard)                             6MB
 Maximum (System)                                  16MB (2r)
 Total # of Sys Bd SIMM Sockets                    3
 # of Sys Bd SIMM Sockets Avail                    2
 Memory Chip Speed (ns)                            85
 Memory Chip Type                                  DRAM
 Memory Cache Controller                           No
 Wait States: Motherboard                          0-2
        Adapter                                    0-2
 Memory Used: Motherboard                          1MB/2MB SIMM


ΓòÉΓòÉΓòÉ 10.13.2.2. PS/2 Model 70-061/121: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 70-061/121 header.

 DESCRIPTION                                       8570-061/121
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 Optional Math Coprocessor                         387
  Coprocessor Speed                                20MHz
 Standard Graphics                                 VGA
  8/16/32-bit Controller                           8
   Bus Master                                      No
  Video Memory (DRAM) Standard                     256K
 Maximum Graphics                                  XGA-2 (c)
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Adapter
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
  Resolutions Supported                            640x480 64K Colors
                                                   800x600 64K Colors
                                                   1024x768 256 Colors
                                                   1280x1024 16 Colors
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 RS232C Serial Ports                               1
  UART Chip Used                                   NS16550A
  Maximum Speed (bits/second)                      19,200
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes


ΓòÉΓòÉΓòÉ 10.13.2.3. PS/2 Model 70-061/121: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 70-061/121 header.

 DESCRIPTION                                       8570-061/121
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     3
  # of 3.5"/5.25" Bays                             3/0
  # of 3.5"/5.25" Bays Available                   1/0
 Diskette Drives Standard                          1x1.44MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (g)
   Media Sensing                                   No
  3.5" 720K                                        N/A (y)
  3.5" 1.44MB                                      Optional (i)(2j)
   Media Sensing                                   No
  3.5" 2.88MB                                      No
  Internal Drives Supported                        2
  External Drives Supported                        1
  Maximum # Diskette Drives                        3
 Hard Disk Drives Standard                         1x60MB (061)
                                                   1x120MB (121)
  Drive Type                                       N/A
  Encoding Method                                  MFM
  Drive Form Factor                                3.5"
  Average Access Rate (ms)                         27 (60MB)
                                                   23 (120MB)
  Data Transfer Rate (/second)                     8.4 Mbits (60MB)
                                                   10.2 Mbits (120MB)
  # of Heads                                       6 (60MB)
                                                   8 (120MB)
  # of Platters                                    3 (60MB)
                                                   4 (120MB)
  Sectors per Track                                26 (60MB)
                                                   32 (120MB)
  Cylinders                                        762 (60MB)
                                                   920 (120MB)
  Rotational Speed (RPMs)                          3600
  Interleave Factor                                1:1
  Controller/Connector Type                        ESDI/36-pin Direct Bus
                                                   Attach (DBA)
  Auto Park                                        Yes
  Maximum # of HD Drives                           1
  Optional HD Drive Sizes Available                N/A
  Maximum Internal HD Capacity                     60MB (061) (3z)(5k)
                                                   120MB (121) (3z)(5k)
 Maximum # of DD and HD Drives                     4
 Internal Rewritable Optical Disk Drives           No
 Internal Optical CD-ROM Drives                    No

 TAPE STORAGE
 Internal Tape Drive Support
  3.5" Internal Tape Backup Unit                   Yes (2j)
  3.5" Internal Tape Backup Unit                   Yes
  5.25" QIC SCSI Tape Drive                        No
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        No
 External Tape Drive Support
  5.25" 6157 Streaming Tape                        Models 001/002 (c)
  5.25" QIC SCSI Tape Drive                        Yes
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        Yes


ΓòÉΓòÉΓòÉ 10.13.2.4. PS/2 Model 70-061/121: Expansion/Operating Systems ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 70-061/121 header.

 DESCRIPTION                                       8570-061/121
 EXPANSION
 Total Adapter Slots                               3
  # of Long/Short Slots                            3/0
  # of 8/16/32-bit Slots                           0/1/2 (3a)
  # of Slots with Video Extension                  1
  Non-RAM use of 32-bit Slots                      Yes
 Available Slots                                   3
  Maximum RAM with Available Slots                 16MB
  Maximum RAM Using No Slots                       6MB
  Maximum RAM Using Only 1 Slot                    16MB (3b)
  # of Slots Required for Maximum                  2
 # of Slots Avail after Maximum                    2

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        3.3 or later
 IBM OS/2                                          1.0 or later
 IBM AIX PS/2                                      1.2 or later


ΓòÉΓòÉΓòÉ 10.13.2.5. PS/2 Model 70-061/121: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 70-061/121 header.

 DESCRIPTION                                       8570-061/121
 KEYBOARD
 101-Key Enhanced Keyboard                         Yes
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         6.0

 SECURITY
 C2 Security Enabled                               No
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               N/A
 Keyboard Password                                 Yes
 Power-on Password                                 Yes
  Network Server Mode                              Yes


ΓòÉΓòÉΓòÉ 10.13.2.6. PS/2 Model 70-061/121: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 70-061/121 header.

 DESCRIPTION                                       8570-061/121
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
 Dimensions: Height                                5.5"
       Width                                       14.1"
       Depth                                       16.5"
 Weight (lbs)                                      21.0
 Max Monitor Weight Supported by Cabinet (lbs)     28 (6o)

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              132
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-137 VAC                          2.7
        180-265 VAC                                1.4
 Maximum Current Leakage (uA)                      <500
 Operating Range: Temperature                      60-90┬░ F
          Rel. Humidity                            8-80%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  751
 Noise Level Classification                        1
  Noise (Avg dB, Operating, 1m)                    40

 MISCELLANEOUS
 FCC Classification                                B
 UL Approval                                       UL 478, 5th Edition
 Warranty Period                                   1 Year
 BIOS Model/Submodel/Revision                      F8/04/00
 Announcement Letter Numbers                       NDD88-261, 191-??? (121)
                                                   NDD89-539, 191-??? (061)
 Date Announced                                    09/26/89
 Date Withdrawn                                    09/11/91


ΓòÉΓòÉΓòÉ 10.13.3. PS/2 Model 70-081/161  Tech Specs ΓòÉΓòÉΓòÉ

The PS/2 Models 70-081 and 70-161 are identical except for the hard disk drive
used.  Therefore both models will be covered by this one document. Differences
will be indicated by model number in parentheses.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Jump directly to the PS/2 Model 70 386DX Systems header.


ΓòÉΓòÉΓòÉ 10.13.3.1. PS/2 Model 70-081/161: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 70-081/161 header.

 DESCRIPTION                                       8570-081/161
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    Intel 386DX
 Clock Speed                                       20 MHz
 Instruction Set                                   32 Bit
 Addressing                                        32 Bit
 I/O Channel Width                                 32/16 Bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
  DMA Burst Mode Supported                         Yes
 Bus Masters Supported                             15
 Upgradeable Processor Complex                     No
 Matched Memory Cycle                              Yes
 Page Memory Logic                                 Yes

 MEMORY
 Standard (Motherboard)                            4MB (7e)
 Maximum (Motherboard)                             6MB
 Maximum (System)                                  16MB (2r)
 Total # of Sys Bd SIMM Sockets                    3
 # of Sys Bd SIMM Sockets Avail                    1
 Memory Chip Speed (ns)                            85
 Memory Chip Type                                  DRAM
 Memory Cache Controller                           No
 Wait States: Motherboard                          0-2
        Adapter                                    0-2
 Memory Used: Motherboard                          1MB/2MB SIMM


ΓòÉΓòÉΓòÉ 10.13.3.2. PS/2 Model 70-081/161: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 70-081/161 header.

 DESCRIPTION                                       8570-081/161
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 Optional Math Coprocessor                         387DX
  Coprocessor Speed                                20MHz
 Standard Graphics                                 VGA
  8/16/32-bit Controller                           8
  On Motherboard/Adapter                           Adapter
  132-Column Text Mode                             No
  Bus Master                                       No
  Video Memory (DRAM) Standard                     256K
  ISO 9241 Part 3 Compliant                        No (1w)
 Maximum Graphics                                  XGA-2 (c)
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Adapter
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
  Resolutions Supported                            640x480 64K Colors
                                                   800x600 64K Colors
                                                   1024x768 256 Colors
                                                   1280x1024 16 Colors
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 RS232C Serial Ports                               1
  UART Chip Used                                   NS16550A
  Maximum Speed (bits/second)                      19,200
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes


ΓòÉΓòÉΓòÉ 10.13.3.3. PS/2 Model 70-081/161: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 70-081/161 header.

 DESCRIPTION                                       8570-081/161
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     3
  # of 3.5"/5.25" Bays                             3/0
  # of 3.5"/5.25" Bays Available                   1/0
 Diskette Drives Standard                          1x1.44MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (g)
   Media Sensing                                   No
  3.5" 720K                                        N/A (y)
  3.5" 1.44MB                                      Optional (i)(2j)
   Media Sensing                                   No
  3.5" 2.88MB                                      No
  Internal Drives Supported                        2
  External Drives Supported                        1
  Maximum # Diskette Drives                        3
 Hard Disk Drives Standard                         1x80MB (081)
                                                   1x160MB (161)
  Maximum # of HD Drives                           1
  Drive Type                                       N/A
  Encoding Method                                  RLL
  Drive Form Factor                                3.5"
  Avg Access Rate (ms)                             17 (80MB)
                                                   16 (160MB)
  Sector Buffer Size                               32K
  Data Transfer Rate (/second)                     1.35 MBytes (80MB)
                                                   1.5 MBytes (160MB)
  Rotational Speed (RPMs)                          3600
  # of Heads                                       4 (80MB)
                                                   8 (160MB)
  # of Platters                                    2 (80MB)
                                                   4 (160MB)
  Sectors per Track                                39
  # of Cylinders                                   1021
  Optional HD Drive Sizes Available                N/A
  Maximum Internal HD Capacity                     80MB (081) (3z)(5k)
                                                   160MB (161) (3z)(5k)
  Interleave Factor                                1:1
  Shock (Gs): Operating                            10
         Non-operating                             50
  MTBF (Hours)                                     110,000
  Controller/Connector Type                        ESDI/36-pin Direct Bus
                                                   Attach (DBA)
  Auto Park                                        Yes
 Maximum # of DD and HD Drives                     4
 Internal Rewritable Optical Disk Drives           No
 Internal Optical CD-ROM Drives                    No

 TAPE STORAGE
 Internal Tape Drive Support
  3.5" Internal Tape Backup Unit                   Yes (2j)
  5.25" QIC SCSI Tape Drive                        No
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        No
 External Tape Drive Support
  5.25" 6157 Streaming Tape                        Models 001/002 (c)
  5.25" QIC SCSI Tape Drive                        Yes
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        Yes


ΓòÉΓòÉΓòÉ 10.13.3.4. PS/2 Model 70-081/161: Expansion/Operating Systems ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 70-081/161 header.

 DESCRIPTION                                       8570-081/161
 EXPANSION
 Total Adapter Slots                               3
  # of Long/Short Slots                            3/0
  # of 8/16/32-bit Slots                           0/1/2 (3a)
  # of Slots with Video Extension                  1
  Non-RAM use of 32-bit Slots                      Yes
 Available Slots                                   3
  Maximum RAM with Available Slots                 16MB
  Maximum RAM Using No Slots                       6MB
  Maximum RAM Using Only 1 Slot                    16MB (3b)
  # of Slots Required for Maximum                  2
 # of Slots Avail after Maximum                    2

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        3.3 or later
 IBM OS/2                                          1.3 or later
 IBM AIX PS/2                                      1.2.1 (with the Golden PTF)
                                                   or later


ΓòÉΓòÉΓòÉ 10.13.3.5. PS/2 Model 70-081/161: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 70-081/161 header.

 DESCRIPTION                                       8570-081/161
 KEYBOARD
 101-Key Enhanced Keyboard                         Yes
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         6.0

 SECURITY
 C2 Security Enabled                               No
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               N/A
 Keyboard Password                                 Yes
 Power-on Password                                 Yes
  Network Server Mode                              Yes


ΓòÉΓòÉΓòÉ 10.13.3.6. PS/2 Model 70-081/161: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 70-081/161 header.

 DESCRIPTION                                       8570-081/161
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
 Dimensions: Height                                5.5"
       Width                                       14.1"
       Depth                                       16.5"
 Weight (lbs)                                      21.0
 Max Monitor Weight Supported by Cabinet (lbs)     28 (6o)

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              132
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-137 VAC                          2.7
        180-265 VAC                                1.4
 Maximum Current Leakage (uA)                      <500
 Operating Range: Temperature                      60-90┬░ F
          Rel. Humidity                            8-80%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  751
 Noise Level Classification                        1
  Noise (Avg dB, Operating, 1m)                    40

 MISCELLANEOUS
 FCC Classification                                B
 UL Approval                                       UL 478, 5th Edition
 Warranty Period                                   1 Year
 BIOS Model/Submodel/Revision                      F8/04/00
 Announcement Letter Numbers                       NDD91-225, 191-???
 Date Announced                                    06/11/91
 Date Withdrawn                                    08/12/92 (081)
                                                   N/A (161)


ΓòÉΓòÉΓòÉ 10.13.4. PS/2 Model 70-A61/A21 Tech Specs ΓòÉΓòÉΓòÉ

The PS/2 Models 70-A61 and 70-A21 are identical except for the hard disk drive
used.  Therefore both models will be covered by this one document. Differences
will be indicated by model number in parentheses.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Jump directly to the PS/2 Model 70 386DX Systems header.


ΓòÉΓòÉΓòÉ 10.13.4.1. PS/2 Model 70-A61/A21: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 70-A61/A21 header.

 DESCRIPTION                                       8570-A61/A21
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    Intel 386DX
 Clock Speed                                       25 MHz
 Instruction Set                                   32 Bit
 Addressing                                        32 Bit
 I/O Channel Width                                 32/16 Bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
  DMA Burst Mode Supported                         Yes
 Bus Masters Supported                             15
 Upgradeable Processor Complex                     Yes
  Processor Upgrades Available                     25MHz 486DX
  486 Burst Mode Enabled                           No
 Matched Memory Cycle                              Yes
 Page Memory Logic                                 Yes

 MEMORY
 Standard (Motherboard)                            2MB
 Maximum (Motherboard)                             8MB
 Maximum (System)                                  16MB (2r)
 Total # of Sys Bd SIMM Sockets                    4
 # of Sys Bd SIMM Sockets Avail                    3
 Memory Chip Speed (ns)                            80
 Memory Chip Type                                  DRAM
 Memory Cache Controller                           Yes
  Internal/External Cache                          External
  Standard Memory Cache Size                       64K
  Cache Memory Type                                SRAM
  Cache Memory Speed (ns)                          25
 Wait States: Motherboard                          0-2 (3c)
        Adapter                                    0-2 (3c)
 Memory Used: Motherboard                          2MB SIMM


ΓòÉΓòÉΓòÉ 10.13.4.2. PS/2 Model 70-A61/A21: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 70-A61/A21 header.

 DESCRIPTION                                       8570-A61/A21
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 Optional Math Coprocessor                         387
  Coprocessor Speed                                25MHz
 Standard Graphics                                 VGA
  8/16/32-bit Controller                           8
  Bus Master                                       No
  Video Memory (DRAM) Standard                     256K
 Maximum Graphics                                  XGA-2 (c)
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Adapter
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
  Resolutions Supported                            640x480 64K Colors
                                                   800x600 64K Colors
                                                   1024x768 256 Colors
                                                   1280x1024 16 Colors
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 RS232C Serial Ports                               1
  UART Chip Used                                   NS16550
  Maximum Speed (bits/second)                      19,200
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes


ΓòÉΓòÉΓòÉ 10.13.4.3. PS/2 Model 70-A61/A21: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 70-A61/A21 header.

 DESCRIPTION                                       8570-A61/A21
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     3
  # of 3.5"/5.25" Bays                             3/0
  # of 3.5"/5.25" Bays Available                   1/0
 Diskette Drives Standard                          1x1.44MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (g)
   Media Sensing                                   No
  3.5" 720K                                        N/A (y)
  3.5" 1.44MB                                      Optional (i)(2j)
   Media Sensing                                   No
  3.5" 2.88MB                                      No
  Internal Drives Supported                        2
  External Drives Supported                        1
  Maximum # Diskette Drives                        3
 Hard Disk Drives Standard                         1x60MB (A61)
                                                   1x120MB (A21)
  Drive Type                                       N/A
  Encoding Method                                  MFM
  Drive Form Factor                                3.5"
  Average Access Rate (ms)                         27 (60MB)
                                                   23 (120MB)
  Sector Buffer Size                               ??K
  Data Transfer Rate (/second)                     8.4 Mbits (60MB)
                                                   10.2 Mbits (120MB)
  # of Heads                                       6 (60MB)
                                                   8 (120MB)
  # of Platters                                    3 (60MB)
                                                   4 (120MB)
  Sectors per Track                                26 (60MB)
                                                   32 (120MB)
  Cylinders                                        762 (60MB)
                                                   920 (120MB)
  Rotational Speed (RPMs)                          3600
  Interleave Factor                                1:1
  Shock (Gs): Operating                            ??
         Non-operating                             ??
  MTBF (Hours)                                     ???
  Controller/Connector Type                        ESDI/36-pin Direct Bus
                                                   Attach (DBA)
  Auto Park                                        Yes
  Maximum # of HD Drives                           1
  Optional HD Drive Sizes Available                N/A
  Maximum Internal HD Capacity                     60MB (A61) (3z)(5k)
                                                   120MB (A21) (3z)(5k)
 Maximum # of DD and HD Drives                     4
 Internal Rewritable Optical Disk Drives           No
 Internal Optical CD-ROM Drives                    No

 TAPE STORAGE
 Internal Tape Drive Support
  3.5" Internal Tape Backup Unit                   Yes (2j)
  5.25" QIC SCSI Tape Drive                        No
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        No
 External Tape Drive Support
  5.25" 6157 Streaming Tape                        Models 001/002 (c)
  5.25" QIC SCSI Tape Drive                        Yes
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        Yes


ΓòÉΓòÉΓòÉ 10.13.4.4. PS/2 Model 70-A61/A21: Expansion/Operating Systems ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 70-A61/A21 header.

 DESCRIPTION                                       8570-A61/A21
 EXPANSION
 Total Adapter Slots                               3
  # of Long/Short Slots                            3/0
  # of 8/16/32-bit Slots                           0/1/2 (3a)
  # of Slots with Video Extension                  1
  Non-RAM use of 32-bit Slots                      Yes
 Available Slots                                   3
  Maximum RAM with Available Slots                 16MB
  Maximum RAM Using Only 1 Slot                    16MB (3d)
  # of Slots Required for Maximum                  1
 # of Slots Avail after Maximum                    2

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        3.3 or later
 IBM OS/2                                          1.2 or later
 IBM AIX PS/2                                      1.1 or later


ΓòÉΓòÉΓòÉ 10.13.4.5. PS/2 Model 70-A61/A21: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 70-A61/A21 header.

 DESCRIPTION                                       8570-A61/A21
 KEYBOARD
 101-Key Enhanced Keyboard                         Yes
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         6.0

 SECURITY
 C2 Security Enabled                               No
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Keyboard Password                                 Yes
 Power-on Password                                 Yes
  Network Server Mode                              Yes


ΓòÉΓòÉΓòÉ 10.13.4.6. PS/2 Model 70-A61/A21: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 70-A61/A21 header.

 DESCRIPTION                                       8570-A61/A21
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
 Dimensions: Height                                5.5"
       Width                                       14.1"
       Depth                                       16.5"
 Weight (lbs)                                      21.0
 Max Monitor Weight Supported by Cabinet (lbs)     28 (6o)

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              132
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-137 VAC                          2.7
        180-265 VAC                                1.4
 Maximum Current Leakage (uA)                      <500
 Operating Range: Temperature                      60-90┬░ F
          Rel. Humidity                            8-80%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  751
 Noise Level Classification                        1
  Noise (Avg dB, Operating, 1m)                    40

 MISCELLANEOUS
 FCC Classification                                B
 UL Approval                                       UL 478, 5th Edition
 Warranty Period                                   1 Year
 BIOS Model/Submodel/Revision                      F8/0D/00
 Announcement Letter Numbers                       NDD88-260, 191-??? (A21)
                                                   NDD89-539, 191-??? (A61)
 Date Announced                                    09/26/89
 Date Withdrawn                                    09/11/91


ΓòÉΓòÉΓòÉ 10.13.5. PS/2 Model 70-A81/A16  Tech Specs ΓòÉΓòÉΓòÉ

The PS/2 Models 70-A81 and 70-A16 are identical except for the hard disk drive
used.  Therefore both models will be covered by this one document. Differences
will be indicated by model number in parentheses.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Jump directly to the PS/2 Model 70 386DX Systems header.


ΓòÉΓòÉΓòÉ 10.13.5.1. PS/2 Model 70-A81/A16: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 70-A81/A16 header.

 DESCRIPTION                                       8570-A81/A16
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    Intel 386DX
 Clock Speed                                       25 MHz
 Instruction Set                                   32 Bit
 Addressing                                        32 Bit
 I/O Channel Width                                 32/16 Bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
  DMA Burst Mode Supported                         Yes
 Bus Masters Supported                             15
 Upgradeable Processor Complex                     25MHz 486DX
  486 Burst Mode Enabled                           No
 Matched Memory Cycle                              Yes
 Page Memory Logic                                 Yes

 MEMORY
 Standard (Motherboard)                            4MB (7e)
 Maximum (Motherboard)                             8MB
 Maximum (System)                                  16MB (2r)
 Total # of Sys Bd SIMM Sockets                    4
 # of Sys Bd SIMM Sockets Avail                    3
 Memory Chip Speed (ns)                            80
 Memory Chip Type                                  DRAM
 Memory Cache Controller                           Yes
  Internal/External Cache                          External
  Standard Memory Cache Size                       64K
  Cache Memory Type                                SRAM
  Cache Memory Speed (ns)                          25
 Wait States: Motherboard                          0-2 (3c)
        Adapter                                    0-2 (3c)
 Memory Used: Motherboard                          2MB SIMM


ΓòÉΓòÉΓòÉ 10.13.5.2. PS/2 Model 70-A81/A16: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 70-A81/A16 header.

 DESCRIPTION                                       8570-A81/A16
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 Optional Math Coprocessor                         387
  Coprocessor Speed                                25MHz
 Standard Graphics                                 VGA
  8/16/32-bit Controller                           8
  Bus Master                                       No
  Video Memory (DRAM) Standard                     256K
 Maximum Graphics                                  XGA-2 (c)
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Adapter
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
  Resolutions Supported                            640x480 64K Colors
                                                   800x600 64K Colors
                                                   1024x768 256 Colors
                                                   1280x1024 16 Colors
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 RS232C Serial Ports                               1
  UART Chip Used                                   NS16550
  Maximum Speed (bits/second)                      19,200
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes


ΓòÉΓòÉΓòÉ 10.13.5.3. PS/2 Model 70-A81/A16: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 70-A81/A16 header.

 DESCRIPTION                                       8570-A81/A16
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     3
  # of 3.5"/5.25" Bays                             3/0
  # of 3.5"/5.25" Bays Available                   1/0
 Diskette Drives Standard                          1x1.44MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (g)
   Media Sensing                                   No
  3.5" 720K                                        N/A (y)
  3.5" 1.44MB                                      Optional (i)(2j)
   Media Sensing                                   No
  3.5" 2.88MB                                      No
  Internal Drives Supported                        2
  External Drives Supported                        1
  Maximum # Diskette Drives                        3
 Hard Disk Drives Standard                         1x80MB (A81)
                                                   1x160MB (A16)
  Maximum # of HD Drives                           1
  Drive Type                                       N/A
  Encoding Method                                  RLL
  Drive Form Factor                                3.5"
  Avg Access Rate (ms)                             17 (80MB)
                                                   16 (160MB)
  Sector Buffer Size                               32K
  Data Transfer Rate (/second)                     1.35 MBytes (80MB)
                                                   1.5 MBytes (160MB)
  Rotational Speed (RPMs)                          3600
  # of Heads                                       4 (80MB)
                                                   8 (160MB)
  # of Platters                                    2 (80MB)
                                                   4 (160MB)
  Sectors per Track                                39
  # of Cylinders                                   1021
  Optional HD Drive Sizes Available                N/A
  Maximum Internal HD Capacity                     80MB (A81) (3z)(5k)
                                                   160MB (A16) (3z)(5k)
  Interleave Factor                                1:1
  Shock (Gs): Operating                            10
         Non-operating                             50
  MTBF (Hours)                                     110,000
  Controller/Connector Type                        ESDI/36-pin Direct Bus
                                                   Attach (DBA)
  Auto Park                                        Yes
 Maximum # of DD and HD Drives                     4
 Internal Rewritable Optical Disk Drives           No
 Internal Optical CD-ROM Drives                    No

 TAPE STORAGE
 External Tape Drive Support
  3.5" Internal Tape Backup Unit                   Yes (2j)
  5.25" QIC SCSI Tape Drive                        No
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        No
 External Tape Drive Support
  5.25" 6157 Streaming Tape                        Models 001/002 (c)
  5.25" QIC SCSI Tape Drive                        Yes
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        Yes


ΓòÉΓòÉΓòÉ 10.13.5.4. PS/2 Model 70-A81/A16: Expansion/Operating Systems ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 70-A81/A16 header.

 DESCRIPTION                                       8570-A81/A16
 EXPANSION
 Total Adapter Slots                               3
  # of Long/Short Slots                            3/0
  # of 8/16/32-bit Slots                           0/1/2 (3a)
  # of Slots with Video Extension                  1
  Non-RAM use of 32-bit Slots                      Yes
 Available Slots                                   3
  Maximum RAM with Available Slots                 16MB
  Maximum RAM Using Only 1 Slot                    16MB (3d)
  # of Slots Required for Maximum                  1
 # of Slots Avail after Maximum                    2

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        3.3 or later
 IBM OS/2                                          1.3 or later
 IBM AIX PS/2                                      1.2.1 (with the Golden PTF)
                                                   or later


ΓòÉΓòÉΓòÉ 10.13.5.5. PS/2 Model 70-A81/A16: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 70-A81/A16 header.

 DESCRIPTION                                       8570-A81/A16
 KEYBOARD
 101-Key Enhanced Keyboard                         Yes
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         6.0

 SECURITY
 C2 Security Enabled                               No
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Keyboard Password                                 Yes
 Power-on Password                                 Yes
  Network Server Mode                              Yes


ΓòÉΓòÉΓòÉ 10.13.5.6. PS/2 Model 70-A81/A16: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 70-A81/A16 header.

 DESCRIPTION                                       8570-A81/A16
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
 Dimensions: Height                                5.5"
       Width                                       14.1"
       Depth                                       16.5"
 Weight (lbs)                                      21.0
 Max Monitor Weight Supported by Cabinet (lbs)     28 (6o)

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              132
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-137 VAC                          2.7
        180-265 VAC                                1.4
 Maximum Current Leakage (uA)                      <500
 Operating Range: Temperature                      60-90┬░ F
          Rel. Humidity                            8-80%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  751
 Noise Level Classification                        1
  Noise (Avg dB, Operating, 1m)                    40

 MISCELLANEOUS
 FCC Classification                                B
 UL Approval                                       UL 478, 5th Edition
 Warranty Period                                   1 Year
 BIOS Model/Submodel/Revision                      F8/0D/00
 Announcement Letter Numbers                       NDD91-225, 191-???
 Date Announced                                    06/11/91
 Date Withdrawn                                    08/12/92 (A81)
                                                   N/A (A16)


ΓòÉΓòÉΓòÉ 10.14. PS/2 Model 70 486DX Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
486-based Model 70 systems.

Choose the section to which you wish to jump, below:

 25MHz Systems
 PS/2 Model 70-B61/B21

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 10.14.1. PS/2 Model 70-B61/B21 Tech Specs ΓòÉΓòÉΓòÉ

The PS/2 Models 70-B61 and 70-B21 models are identical to the A61 and A21
models except with a PS/2 486/25 Power Platform installed.

The 70-B61 and -B21 models are identical except for the size of the hard disk
drive.  Therefore both models will be covered by this one document. Differences
will be indicated by model number in parentheses.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Jump directly to the PS/2 Model 70 486 Systems header.


ΓòÉΓòÉΓòÉ 10.14.1.1. PS/2 Model 70-B61/B21: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 70-B61/B21 header.

 DESCRIPTION                                       8570-B61/B21
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    486DX
 Clock Speed                                       25 MHz (3e)
 Instruction Set                                   32 bit
 Addressing                                        32 bit
 I/O Channel Width                                 32/16 Bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
  DMA Burst Mode Supported                         Yes
 Bus Masters Supported                             15
 Upgradeable Processor Complex                     Yes
  Processor Upgrades Available                     None
 486 Burst Mode Enabled                            No
 Matched Memory Cycle                              Yes
 Page Memory Logic                                 Yes

 MEMORY
 Standard (Motherboard)                            2MB
 Maximum (Motherboard)                             8MB
 Maximum (System)                                  16MB (2r) (2r)
 Total # of Sys Bd SIMM Sockets                    4
 # of Sys Bd SIMM Sockets Avail                    3
 Memory Chip Speed (ns)                            80
 Memory Chip Type                                  DRAM
 Memory Cache Controller                           Yes
  Internal/External Cache                          Internal (3f)
  Standard Memory Cache Size                       8K (3f)
 Optional External Memory Cache                    No
  External Cache Memory Type                       N/A
  Ext. Cache Memory Speed (ns)                     N/A
 Wait States: Motherboard                          0-2 (3c)
        Adapter                                    0-2 (3c)
 Memory Chips Used: System Bd                      2MB SIMM


ΓòÉΓòÉΓòÉ 10.14.1.2. PS/2 Model 70-B61/B21: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 70-B61/B21 header.

 DESCRIPTION                                       8570-B61/B21
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 Optional Math Coprocessor                         Built-in (3g)
  Coprocessor Speed                                25MHz
 Standard Graphics                                 VGA
  8/16/32-bit Controller                           8
  Bus Master                                       No
  Video Memory (DRAM) Standard                     256K
 Maximum Graphics                                  XGA-2 (c)
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Adapter
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
  Resolutions Supported                            640x480 64K Colors
                                                   800x600 64K Colors
                                                   1024x768 256 Colors
                                                   1280x1024 16 Colors
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 RS232C Serial Ports                               1
  UART Chip Used                                   NS16550A
  Maximum Speed (bits/second)                      19,200
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes


ΓòÉΓòÉΓòÉ 10.14.1.3. PS/2 Model 70-B61/B21: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 70-B61/B21 header.

 DESCRIPTION                                       8570-B61/B21
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     3
  # of 3.5"/5.25" Bays                             3/0
  # of 3.5"/5.25" Bays Available                   1/0
 Diskette Drives Standard                          1x1.44MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (g)
   Media Sensing                                   No
  3.5" 720K                                        No (y) (y)
  3.5" 1.44MB                                      Optional (i)(2j)
   Media Sensing                                   No
  3.5" 2.88MB                                      No
  Internal Drives Supported                        2
  External Drives Supported                        1
  Maximum # Diskette Drives                        3
 Hard Disk Drives Standard                         1x60MB (B61)
                                                   1x120MB (B21)
  Controller/Connector Type                        ESDI/36-pin Direct Bus
                                                   Attach (DBA)
  Drive Type                                       N/A
  Drive Form Factor                                3.5"
  Maximum # of HD Drives                           1
  Optional HD Drive Sizes Available                N/A
  Maximum Internal HD Capacity                     60MB (B61)
                                                   120MB (B21)
  Average Access Rate (ms)                         27 (60MB)
                                                   23 (120MB)
  Encoding Method                                  MFM
  Data Transfer Rate (Mbits/sec)                   8.4 (60MB)
                                                   10.2 (120MB)
  Rotational Speed (RPMs)                          3600
  # of Heads                                       6 (60MB)
                                                   8 (120MB)
  # of Platters                                    3 (60MB)
                                                   4 (120MB)
  Sectors per Track                                26 (60MB)
                                                   32 (120MB)
  Cylinders                                        768 (60MB)
                                                   920 (120MB)
  Interleave Factor                                1:1
  Auto Park                                        Yes
 Maximum # of DD and HD Drives                     4

 TAPE STORAGE
 Internal Tape Drive Support
  3.5" Internal Tape Backup Unit                   Yes (2j)
  5.25" QIC SCSI Tape Drive                        No
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        No
 External Tape Drive Support
  5.25" 6157 Streaming Tape                        Models 001/002 (c)
  5.25" QIC SCSI Tape Drive                        Yes
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        Yes


ΓòÉΓòÉΓòÉ 10.14.1.4. PS/2 Model 70-B61/B21: Expansion/Operating Systems ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 70-B61/B21 header.

 DESCRIPTION                                       8570-B61/B21
 EXPANSION
 Total Adapter Slots                               3
  # of Long/Short Slots                            3/0
  # of 8/16/32-bit Slots                           0/1/2 (3a)
  # of Slots with Video Extension                  1
  Non-RAM use of 32-bit Slots                      Yes
 Available Slots                                   3
  Maximum RAM with Available Slots                 16MB
  Maximum RAM Using Only 1 Slot                    16MB (3d)
  # of Slots Required for Maximum                  1
 # of Slots Avail after Maximum                    2

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        3.3 or later
 IBM OS/2                                          1.1 or later
 IBM AIX PS/2                                      1.2 or later


ΓòÉΓòÉΓòÉ 10.14.1.5. PS/2 Model 70-B61/B21: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 70-B61/B21 header.

 DESCRIPTION                                       8570-B61/B21
 KEYBOARD
 101-Key Enhanced Keyboard                         Yes
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         6.0

 SECURITY
 C2 Security Enabled                               No
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Keyboard Password                                 Yes
 Power-on Password                                 Yes
  Network Server Mode                              Yes


ΓòÉΓòÉΓòÉ 10.14.1.6. PS/2 Model 70-B61/B21: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 70-B61/B21 header.

 DESCRIPTION                                       8570-B61/B21
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
 Dimensions: Height                                5.5"
       Width                                       14.1"
       Depth                                       16.5"
 Weight (lbs)                                      21.0
 Max Monitor Weight Supported by Cabinet (lbs)     28 (6o)

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              132
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-137 VAC                          2.7
        180-265 VAC                                1.4
 Maximum Current Leakage (uA)                      <500
 Operating Range: Temperature                      60-90┬░ F
          Rel. Humidity                            8-80%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  751
 Noise Level Classification                        1
  Noise (Avg dB, Operating, 1m)                    40

 MISCELLANEOUS
 FCC Classification                                B
 Warranty Period                                   1 Year
 BIOS Model/Submodel/Revision                      F8/1B/00
 Announcement Letter Numbers                       NDD89-700, 191-???
 Date Announced                                    12/19/89
 Date Withdrawn                                    09/11/91


ΓòÉΓòÉΓòÉ 10.15. PS/2 Model P70 386DX Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
Intel 386DX-based Model P70 systems.

Choose the section to which you wish to jump, below:

 16MHz Systems                                     20MHz Systems
 PS/2 Model P70-031                                PS/2 Model P70-061/121

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 10.15.1. PS/2 Model P70-031 Tech Specs ΓòÉΓòÉΓòÉ

Note:  This model has been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Jump directly to the PS/2 Model P70 386DX Systems header.


ΓòÉΓòÉΓòÉ 10.15.1.1. PS/2 Model P70-031: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model P70-031 header.

 DESCRIPTION                                       8573-031
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    Intel 386DX
 Clock Speed                                       16 MHz
 Instruction Set                                   32 bit
 Addressing                                        32 bit
 I/O Channel Width                                 32/16 Bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
 DMA Burst Mode Supported                          Yes
 Bus Masters Supported                             15
 Upgradeable Processor Complex                     No
 Matched Memory Cycle                              Yes
 Page Memory Logic                                 Yes

 MEMORY
 Standard (Motherboard)                            1MB
 Maximum (Motherboard)                             8MB
 Maximum (System)                                  16MB (2r) (2r)
 Total # of Sys Bd SIMM Sockets                    4
 # of Sys Bd SIMM Sockets Avail                    3
 Memory Chip Speed (ns)                            85
 Memory Chip Type                                  DRAM
 Memory Cache Controller                           No
 Wait States: Motherboard                          0-2
        Adapter                                    0-2
 Memory Used: Motherboard                          1MB/2MB SIMM


ΓòÉΓòÉΓòÉ 10.15.1.2. PS/2 Model P70-031: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model P70-031 header.

 DESCRIPTION                                       8573-031
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 Optional Math Coprocessor                         387
  Coprocessor Speed                                16MHz
 Standard Graphics                                 VGA
  8/16/32-bit Controller                           8
  Bus Master                                       No
  Video Memory (DRAM) Standard                     256K
 Integrated Display                                Yes (3h)
  Type                                             Gas Plasma
  Size (Diagonal Measure)                          10"
  Gray-shades                                      16
  Monochrome color                                 Orange
 Maximum Graphics                                  VGA
  8/16/32-bit Controller                           8
  Bus Master                                       No
  Video Memory (DRAM) Standard                     256K
 RS232C Serial Ports                               1
  UART Chip Used                                   NS16550A
  Maximum Speed (bits/second)                      19,200
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes


ΓòÉΓòÉΓòÉ 10.15.1.3. PS/2 Model P70-031: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model P70-031 header.

 DESCRIPTION                                       8573-031
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     2
  # of 3.5"/5.25" Bays                             2/0
  # of 3.5"/5.25" Bays Available                   0/0
 Diskette Drives Standard                          1x1.44MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)(5b)
  5.25" 1.2MB                                      Optional (g)(5s)
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      No (i)(2j)
  Internal Drives Supported                        1
  External Drives Supported                        1
  Maximum # Diskette Drives                        2
 Hard Disk Drives Standard                         1x30MB
  Drive Type                                       N/A
  Drive Form Factor                                3.5"
  Maximum # of HD Drives                           1
  Average Access Rate (ms)                         19
  Encoding Method                                  RLL
  Data Transfer Rate (Mbits/second)                10.0
  Rotational Speed (RPMs)                          3600
  # of Heads                                       4
  # of Platters                                    2
  Sectors per Track                                25
  Cylinders                                        615
  Maximum Internal HD Capacity                     30MB
  Interleave Factor                                1:1
  Controller/Connector Type                        ST-506/36-pin Direct Bus
                                                   Attach (DBA)
  Auto Park                                        Yes
 Maximum # of DD and HD Drives                     3

 TAPE STORAGE
 Internal Tape Drive Support                       No
 External Tape Drive Support
  5.25" 6157 Streaming Tape                        Models 001/002 (c)
  5.25" QIC SCSI Tape Drive                        Yes (4l)
  5.25" 4mm SCSI Tape Drive                        Yes (4l)
  5.25" 8mm SCSI Tape Drive                        Yes (4l)


ΓòÉΓòÉΓòÉ 10.15.1.4. PS/2 Model P70-031: Expansion/Operating Systems ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model P70-031 header.

 DESCRIPTION                                       8573-031
 EXPANSION
 Total Adapter Slots                               2
  # of Long/Short Slots                            1/1
  # of 8/16/32-bit Slots                           0/1/1 (3a)
  # of Slots with Video Extension                  0
  Non-RAM use of 32-bit Slots                      Yes
 Available Slots                                   2
  Maximum RAM with Available Slots                 16MB
  Maximum RAM Using Only 1 Slot                    16MB (3d)
  # of Slots Required for Maximum                  1
  # of Slots Avail after Maximum                   1

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        3.3 or later
 IBM OS/2                                          1.2 or later
 IBM AIX PS/2                                      No (2v)


ΓòÉΓòÉΓòÉ 10.15.1.5. PS/2 Model P70-031: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model P70-031 header.

 DESCRIPTION                                       8573-031
 KEYBOARD
 101-Key Enhanced Keyboard                         Yes
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         1.2 (4j)
 Keyboard Extension Cord                           Withdrawn

 SECURITY
 C2 Security Enabled                               No
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Keyboard Password                                 Yes
 Power-on Password                                 Yes
  Network Server Mode                              Yes


ΓòÉΓòÉΓòÉ 10.15.1.6. PS/2 Model P70-031: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model P70-031 header.

 DESCRIPTION                                       8573-031
 PHYSICAL FACTORS
 Footprint Type                                    Portable
 Dimensions: Height                                12.0"
       Width                                       18.3"
       Depth                                       16.5"
 Weight (lbs)                                      20.8 (3j)
 Carrying Handle                                   Yes
 Carrying Case                                     Optional

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              85
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-137 VAC                          2.4
        180-264 VAC                                1.2
 Maximum Current Leakage (uA)                      <500
 Operating Range: Temperature                      50-95┬░ F
          Rel. Humidity                            8-80%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  480
 Noise Level Classification                        3D
  Noise (Avg dB, Operating, 1m)                    39

 MISCELLANEOUS
 FCC Classification                                B
 Warranty Period                                   1 Year
 BIOS Model/Submodel/Revision                      F8/50/00
 Announcement Letter Numbers                       NDD90-098, 191-???
 Date Announced                                    03/20/90
 Date Withdrawn                                    07/23/91


ΓòÉΓòÉΓòÉ 10.15.2. PS/2 Model P70-061/121 Tech Specs ΓòÉΓòÉΓòÉ

The P70-061 and -121 models are identical except for the size of the hard disk
drive.  Therefore both models will be covered by this one document. Differences
will be indicated by model number in parentheses.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Jump directly to the PS/2 Model P70 386DX Systems header.


ΓòÉΓòÉΓòÉ 10.15.2.1. PS/2 Model P70-061/121: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model P70-061/121 header.

 DESCRIPTION                                       8573-061/121
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    Intel 386DX
 Clock Speed                                       20 MHz
 Instruction Set                                   32 bit
 Addressing                                        32 bit
 I/O Channel Width                                 32/16 Bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
 DMA Burst Mode Supported                          Yes
 Bus Masters Supported                             15
 Upgradeable Processor Complex                     No
 Matched Memory Cycle                              Yes
 Page Memory Logic                                 Yes

 MEMORY
 Standard (Motherboard)                            4MB
 Maximum (Motherboard)                             8MB
 Maximum (System)                                  16MB (2r) (2r)
 Total # of Sys Bd SIMM Sockets                    4
 # of Sys Bd SIMM Sockets Avail                    3
 Memory Chip Speed (ns)                            85
 Memory Chip Type                                  DRAM
 Memory Cache Controller                           No
 Wait States: Motherboard                          0-2
        Adapter                                    0-2
 Memory Used: Motherboard                          1MB/2MB SIMM


ΓòÉΓòÉΓòÉ 10.15.2.2. PS/2 Model P70-061/121: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model P70-061/121 header.

 DESCRIPTION                                       8573-061/121
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 Optional Math Coprocessor                         387
  Coprocessor Speed                                20MHz
 Standard Graphics                                 VGA
  8/16/32-bit Controller                           8
  Bus Master                                       No
  Video Memory (DRAM) Standard                     256K
 Integrated Display                                Yes (3h)
  Type                                             Gas Plasma
  Size (Diagonal Measure)                          10"
  Gray-shades                                      16
  Monochrome color                                 Orange
 Maximum Graphics                                  VGA
  8/16/32-bit Controller                           8
  Bus Master                                       No
  Video Memory (DRAM) Standard                     256K
 RS232C Serial Ports                               1
  UART Chip Used                                   NS16550A
  Maximum Speed (bits/second)                      19,200
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes


ΓòÉΓòÉΓòÉ 10.15.2.3. PS/2 Model P70-061/121: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model P70-061/121 header.

 DESCRIPTION                                       8573-061/121
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     2
  # of 3.5"/5.25" Bays                             2/0
  # of 3.5"/5.25" Bays Available                   0/0
 Diskette Drives Standard                          1x1.44MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)(5b)
  5.25" 1.2MB                                      Optional (g)(5s)
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      No (i)(2j)
  Internal Drives Supported                        1
  External Drives Supported                        1
  Maximum # Diskette Drives                        2
 Hard Disk Drives Standard                         1x60MB (061)
 Hard Disk Drives Standard                         1x120MB (121)
  Drive Type                                       N/A
  Drive Form Factor                                3.5"
  Maximum # of HD Drives                           1
  Average Access Rate (ms)                         27 (60MB)
                                                   23 (120MB)
  Encoding Method                                  MFM
  Data Transfer Rate (Mbits/second)                8.4 (60MB)
                                                   10.2 (120MB)
  Rotational Speed (RPMs)                          3600
  # of Heads                                       6 (60MB)
                                                   8 (120MB)
  # of Platters                                    3 (60MB)
                                                   4 (120MB)
  Sectors per Track                                26 (60MB)
                                                   32 (120MB)
  Cylinders                                        762 (60MB)
                                                   920 (120MB)
  Maximum Internal HD Capacity                     60MB (061)
                                                   120MB (121)
  Interleave Factor                                1:1
  Controller/Connector Type                        ESDI/36-pin Direct Bus
                                                   Attach (DBA)
  Auto Park                                        Yes
 Maximum # of DD and HD Drives                     3

 TAPE STORAGE
 Internal Tape Drive Support                       No
 External Tape Drive Support
  5.25" 6157 Streaming Tape                        Models 001/002 (c)
  5.25" QIC SCSI Tape Drive                        Yes (4l)
  5.25" 4mm SCSI Tape Drive                        Yes (4l)
  5.25" 8mm SCSI Tape Drive                        Yes (4l)


ΓòÉΓòÉΓòÉ 10.15.2.4. PS/2 Model P70-061/121: Expansion/Operating Systems ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model P70-061/121 header.

 DESCRIPTION                                       8573-061/121
 EXPANSION
 Total Adapter Slots                               2
  # of Long/Short Slots                            1/1
  # of 8/16/32-bit Slots                           0/1/1 (3a)
  # of Slots with Video Extension                  0
  Non-RAM use of 32-bit Slots                      Yes
 Available Slots                                   2
  Maximum RAM with Available Slots                 16MB
  Maximum RAM Using Only 1 Slot                    16MB (3d)
  # of Slots Required for Maximum                  1
  # of Slots Avail after Maximum                   1

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        3.3 or later
 IBM OS/2                                          1.2 or later
 IBM AIX PS/2                                      Yes


ΓòÉΓòÉΓòÉ 10.15.2.5. PS/2 Model P70-061/121: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model P70-061/121 header.

 DESCRIPTION                                       8573-061/121
 KEYBOARD
 101-Key Enhanced Keyboard                         Yes
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         1.2 (4j)
 Keyboard Extension Cord                           Withdrawn

 SECURITY
 C2 Security Enabled                               No
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Keyboard Password                                 Yes
 Power-on Password                                 Yes
  Network Server Mode                              Yes


ΓòÉΓòÉΓòÉ 10.15.2.6. PS/2 Model P70-061/121: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model P70-061/121 header.

 DESCRIPTION                                       8573-061/121
 PHYSICAL FACTORS
 Footprint Type                                    Portable
 Dimensions: Height                                12.0"
       Width                                       18.3"
       Depth                                       16.5"
 Weight (lbs)                                      20.8 (3j)
 Carrying Handle                                   Yes
 Carrying Case                                     Optional

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              85
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-137 VAC                          2.4
        180-264 VAC                                1.2
 Maximum Current Leakage (uA)                      <500
 Operating Range: Temperature                      50-95┬░ F
          Rel. Humidity                            8-80%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  480
 Noise Level Classification                        3D
  Noise (Avg dB, Operating, 1m)                    39

 MISCELLANEOUS
 FCC Classification                                B
 Warranty Period                                   1 Year
 BIOS Model/Submodel/Revision                      F8/0B/00
 Announcement Letter Numbers                       NDD89-239, 191-???
 Date Announced                                    05/09/89
 Date Withdrawn                                    07/23/91 (061)
                                                   12/15/92 (121)


ΓòÉΓòÉΓòÉ 10.16. PS/2 Model P75 486DX Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
486-based Model P75 portable systems.

Choose the section to which you wish to jump, below:

 33MHz Systems
 PS/2 Model P75-161/401

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 10.16.1. PS/2 Model P75-161/401 Tech Specs ΓòÉΓòÉΓòÉ

The P75-161 and -401 models are identical except for the hard disk drive.
Therefore both models will be covered by this one document.  Differences will
be indicated by model number in parentheses.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Jump directly to the PS/2 Model P75 486 Systems header.


ΓòÉΓòÉΓòÉ 10.16.1.1. PS/2 Model P75-161/401: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the P75-161/401 header.

 DESCRIPTION                                       8573-161/401
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    486DX
 Clock Speed                                       33 MHz
 Instruction Set                                   32 bit
 Addressing                                        32 bit
 I/O Channel Width                                 32/16 Bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
  DMA Burst Mode Supported                         Yes
 Bus Masters Supported                             15
 Upgradeable Processor Complex                     No
  486 Burst Mode Enabled                           No
 Matched Memory Cycle                              Yes (5i)
 Page Memory Logic                                 Yes

 MEMORY
 Standard (Motherboard)                            8MB
 Maximum (Motherboard)                             16MB (5g)
 Maximum (System)                                  16MB (2r)
 Total # of Sys Bd SIMM Sockets                    4
 # of Sys Bd SIMM Sockets Avail                    2
 Memory Chip Speed (ns)                            70 (4y)(7k)
 Memory Chip Type                                  DRAM
 Memory Cache Controller                           Yes
  Internal/External Cache                          Internal
  Standard Memory Cache Size                       8K
  Optional External Memory Cache                   No
  External Cache Memory Type                       N/A
  Ext. Cache Memory Speed (ns)                     N/A
 Wait States: Motherboard                          0
        Adapter                                    ???
 Memory Chips Used: System Bd                      1/2/4MB SIMMs (70/80/85ns)
                                                   (7k)


ΓòÉΓòÉΓòÉ 10.16.1.2. PS/2 Model P75-161/401: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the P75-161/401 header.

 DESCRIPTION                                       8573-161/401
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 Optional Math Coprocessor                         Built-in (3g)
  Coprocessor Speed                                33 MHz
 Standard Graphics                                 VGA/XGA (5a)
  8/16/32-bit Controller                           16/32 (6u)
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
 Integrated Display                                Yes (3h)
  Type                                             Gas Plasma
  Size (Diagonal Measure)                          10"
  Gray-shades                                      16
  Monochrome color                                 Orange
 Maximum Graphics                                  XGA-2 (c)
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Adapter
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
  Resolutions Supported                            640x480 64K Colors
                                                   800x600 64K Colors
                                                   1024x768 256 Colors
                                                   1280x1024 16 Colors
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 RS232C Serial Ports                               1
  UART Chip Used                                   NS16550A
  Maximum Speed (bits/second)                      19,200
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 SCSI port                                         Yes (5c)
  Internal/External Connectors                     Yes/Yes
  On Motherboard/Adapter                           Motherboard


ΓòÉΓòÉΓòÉ 10.16.1.3. PS/2 Model P75-161/401: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the P75-161/401 header.

 DESCRIPTION                                       8573-161/401
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     2
  # of 3.5"/5.25" Bays                             2/0
  # of 3.5"/5.25" Bays Available                   0/0
 Diskette Drives Standard                          1x1.44MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)(5b)(5b)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (g)(5s)
   Media Sensing                                   No
  3.5" 720K                                        No (y) (y)
  3.5" 1.44MB                                      No
   Media Sensing                                   No
  3.5" 2.88MB                                      No
  Internal Drives Supported                        1
  External Drives Supported                        1
  Maximum # Diskette Drives                        2
 Hard Disk Drives Standard                         1x160MB (161)
                                                   1x400MB (401)
  Drive Type                                       SCSI
  Encoding Method                                  RLL
  Drive Form Factor                                3.5"
  Maximum # of HD Drives                           1
  Maximum Internal HD Capacity                     400MB (3z)
  Average Access Rate (ms)                         16 (160MB)
                                                   11.5 (400MB)
  Sector Buffer Size                               32K (160MB)
                                                   128K (400MB)
  Average Latency (ms)                             ?.?? (160MB)
                                                   6.95 (400MB)
  Data Transfer Rate (/second)                     1.5 MBytes (160MB)
                                                   2.0 MBytes (400MB)
  Rotational Speed (RPMs)                          3600 (160MB)
                                                   4316 (400MB)
  # of Heads                                       8 (160MB)
                                                   14 (400MB)
  # of Platters                                    4 (160MB)
                                                   8 (400MB)
  Sectors per Track                                39 (160MB)
                                                   48 (400MB)
  Cylinders                                        1021 (160MB)
                                                   1199 (400MB)
  Interleave Factor                                1:1
  Shock Rating (Gs): Operating                     10
            Non-operating                          50 (160MB)
                                                   35 (400MB)
  MTBF (Hours)                                     110,000 (160MB)
                                                   150,000 (400MB)
  Auto Park                                        Yes
 Maximum # of DD and HD Drives                     3

 TAPE STORAGE
 Internal Tape Drive Support                       No
 External Tape Drive Support                       Yes
  5.25" 6157 Streaming Tape                        Models 001/002 (c)
  5.25" QIC SCSI Tape Drive                        Yes (4l)
  5.25" 4mm SCSI Tape Drive                        Yes (4l)
  5.25" 8mm SCSI Tape Drive                        Yes (4l)


ΓòÉΓòÉΓòÉ 10.16.1.4. PS/2 Model P75-161/401: Expansion/Operating System ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the P75-161/401 header.

 DESCRIPTION                                       8573-161/401
 EXPANSION
 Total Adapter Slots                               4
  # of Long/Short Slots                            2/2
  # of 8/16/32-bit Slots                           0/2/2 (3a)
  # of Slots with Video Extension                  1
  Non-RAM use of 32-bit Slots                      Yes
 Available Slots                                   4
  Maximum RAM with Available Slots                 16MB
  Maximum RAM Using Only 1 Slot                    16MB (5g)
  # of Slots Required for Maximum                  0
  # of Slots Avail after Maximum                   4

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        3.3 or later
 IBM OS/2                                          1.2 or later
 IBM AIX PS/2                                      1.2.1 (with the Golden PTF)
                                                   or later


ΓòÉΓòÉΓòÉ 10.16.1.5. PS/2 Model P75-161/401: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the P75-161/401 header.

 DESCRIPTION                                       8573-161/401
 KEYBOARD
 101-Key Enhanced Keyboard                         Yes
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         1.2 (4j)(5d)
 Keyboard Extension Cord                           Withdrawn

 SECURITY
 C2 Security Enabled                               No
 Keylock: Locks Cover                              N/A
      Locks Keyboard                               N/A
 Keyboard Password                                 Yes
 Power-on Password                                 Yes
  Network Server Mode                              Yes


ΓòÉΓòÉΓòÉ 10.16.1.6. PS/2 Model P75-161/401: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the P75-161/401 header.

 DESCRIPTION                                       8573-161/401
 PHYSICAL FACTORS
 Footprint Type                                    Portable
 Dimensions: Height                                12.0"
       Width                                       18.3"
       Depth                                       6.1"
 Weight (lbs)                                      22.1 (3j)
 Carrying Handle                                   Yes
 Carrying Case                                     Optional

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              120
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-137 VAC                          3.0
        180-264 VAC                                1.5
 Maximum Current Leakage (uA)                      <500
 Operating Range: Temperature                      50-104┬░ F
          Rel. Humidity                            8-80%
 Shock/Vibration Class                             V2 Stationary
 Corrosive Gasses Class                            G1
 Particulates Class                                P1
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  751
 Noise Level Classification                        3D
  Noise (Avg dB, Operating, 1m)                    ???

 MISCELLANEOUS
 FCC Classification                                B
 Warranty Period                                   1 Year
 BIOS Model/Submodel/Revision                      F8/52/00
 Announcement Letter Numbers                       NDD90-474, 191-???
 Date Announced                                    11/12/90
 Date Withdrawn                                    12/15/92 (161)
                                                   ??/??/?? (401)


ΓòÉΓòÉΓòÉ 10.17. PS/2 Model 80 386DX Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
Intel 386DX-based Model 80 systems.

Choose the section to which you wish to jump, below:

 16MHz Systems                                     25MHz Systems
 PS/2 Model 80-041/071                             PS/2 Model 80-A16/A21/A31

 20MHz Systems
 PS/2 Model 80-081/121/161/321
 PS/2 Model 80-111/311

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 10.17.1. PS/2 Model 80-041/071 Tech Specs ΓòÉΓòÉΓòÉ

The PS/2 Models 80-041 and -071 models are identical except for the size and
type of hard disk drive, and the amount of standard memory.  Therefore all
models will be covered by this one document. Differences will be indicated by
model number in parentheses.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Jump directly to the PS/2 Model 80 386DX Systems header.


ΓòÉΓòÉΓòÉ 10.17.1.1. PS/2 Model 80-041/071: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 80-041/071 header.

 DESCRIPTION                                       8580-041/071
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    Intel 386DX
 Clock Speed                                       16 MHz
 Instruction Set                                   32 Bit
 Addressing                                        32 Bit
 I/O Channel Width                                 32/16 Bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
 DMA Burst Mode Supported                          Yes
 Bus Masters Supported                             15
 Upgradeable Processor Complex                     No
 Matched Memory Cycle                              Yes
 Page Memory Logic                                 No

 MEMORY
 Standard (Motherboard)                            1MB (3k) (041)
                                                   2MB (3n) (071)
 Maximum (Motherboard)                             2MB (3n)/4MB (3o)
 Maximum (System)                                  16MB
 Total # of Memory Sockets                         2
 # of Memory Sockets Available                     1
 Memory Chip Speed (ns)                            80
 Memory Chip Type                                  DRAM
 Memory Cache Controller                           No
 Wait States: Motherboard                          1
        Adapter                                    1
 Memory Used: Motherboard                          1MB/2MB Card


ΓòÉΓòÉΓòÉ 10.17.1.2. PS/2 Model 80-041/071: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 80-041/071 header.

 DESCRIPTION                                       8580-041/071
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     No
 Optional Math Coprocessor                         387
  Coprocessor Speed                                16MHz
 Standard Graphics                                 VGA
  8/16/32-bit Controller                           8
  Bus Master                                       No
  Video Memory (DRAM) Standard                     256K
 Maximum Graphics                                  XGA-2 (c)
 8/16/32-bit Controller                            32
  On Motherboard/Adapter                           Adapter
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
  Resolutions Supported                            640x480 64K Colors
                                                   800x600 64K Colors
                                                   1024x768 256 Colors
                                                   1280x1024 16 Colors
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 RS232C Serial Ports                               1
  UART Chip Used                                   NS16550
  Maximum Speed (bits/second)                      19,200
  FIFO Mode Enabled                                No
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes


ΓòÉΓòÉΓòÉ 10.17.1.3. PS/2 Model 80-041/071: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 80-041/071 header.

 DESCRIPTION                                       8580-041/071
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     4
  # of 3.5"/5.25" Bays                             2/2
  # of 3.5"/5.25" Bays Available                   1/1
 Diskette Drives Standard                          1x1.44MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)
  5.25" 1.2MB                                      Optional (j)(2z)
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      Optional (i)(2j)
 Internal Drives Supported                         3 (2z)
  External Drives Supported                        1
  Maximum # Diskette Drives                        4 (2z)
 Hard Disk Drives Standard                         1x44MB (041)
                                                   1x70MB (071)
  Controller Type                                  ST-506 (041)
                                                   ESDI
  Drive Type                                       31/32 (44MB)
                                                   ESDI (70MB)
  Drive Form Factor                                5.25"
  Average Access Rate (ms)                         40 (44MB)
                                                   30 (70MB)
  Data Transfer Rate (Mbits/second)                5.0 (44MB)
                                                   10.0 (70MB)
  Encoding Method                                  MFM
  # of Heads                                       7/5 (44MB)
                                                   7 (70MB)
  # of Platters                                    4/3 (44MB)
                                                   4 (70MB)
  Sectors per Track                                17/17 (44MB)
                                                   36 (70MB)
  Cylinders                                        733/1024 (44MB)
                                                   583 (70MB)
  Interleave Factor                                1:1
  Auto Park                                        Yes
  Maximum # of HD Drives                           2 (2z)
  Optional HD Drive Sizes Available                44MB (40ms) (041)
                                                   70MB (30ms) (071)
                                                   115MB (28ms) (071)
                                                   314MB (23ms} (071)
  Maximum Internal HD Capacity                     88MB (041)
                                                   384MB (071)
 Maximum # of DD and HD Drives                     5

 TAPE STORAGE
 Internal Tape Drive Support                       Yes
  3.5" Internal Tape Backup Unit                   Yes (2j)
  5.25" QIC SCSI Tape Drive                        No
  5.25" 4mm SCSI Tape Drive                        Yes (7i)
  5.25" 8mm SCSI Tape Drive                        No
 External Tape Drive Support
  5.25" 6157 Streaming Tape                        Models 001/002 (c)
  5.25" QIC SCSI Tape Drive                        Yes (4l)
  5.25" 4mm SCSI Tape Drive                        Yes (4l)
  5.25" 8mm SCSI Tape Drive                        Yes (4l)


ΓòÉΓòÉΓòÉ 10.17.1.4. PS/2 Model 80-041/071: Expansion/Operating Systems ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 80-041/071 header.

 DESCRIPTION                                       8580-041/071
 EXPANSION
 Total Adapter Slots                               8
  # of Long/Short Slots                            8/0
  # of 8/16/32-bit Slots                           0/5/3 (3a)
  # of Slots with Video Extension                  1
  Non-RAM use of 32-bit Slots                      Yes
 Available Slots                                   7 (2o)
  Maximum RAM with Available Slots                 16MB
  # of Slots Required for Maximum                  1 (3m)
  # of Slots Avail after Maximum                   6

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        3.3 or later
 IBM OS/2                                          1.1 or later
 IBM AIX PS/2                                      1.1 or later


ΓòÉΓòÉΓòÉ 10.17.1.5. PS/2 Model 80-041/071: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 80-041/071 header.

 DESCRIPTION                                       8580-041/071
 KEYBOARD
 101-Key Enhanced Keyboard                         Yes
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         10.0

 SECURITY
 C2 Security Enabled                               No
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Keyboard Password                                 Yes
 Power-on Password                                 Yes
  Network Server Mode                              Yes


ΓòÉΓòÉΓòÉ 10.17.1.6. PS/2 Model 80-041/071: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 80-041/071 header.

 DESCRIPTION                                       8580-041/071
 PHYSICAL FACTORS
 Footprint Type                                    Floor-standing
 Dimensions: Height                                23.5"
       Width                                       6.5"
       Depth                                       19.0"
 Weight (lbs)                                      52.0

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              225
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage:  90-137 Volts AC                        5.3
      180-265 Volts AC                             2.7
 Maximum Current Leakage (uA)                      <500
 Operating Range: Temperature                      60-90┬░ F
          Rel. Humidity                            8-80%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  1245
 Noise Level Classification                        1
  Noise (Avg dB, Operating, 1m)                    46

 MISCELLANEOUS
 FCC Classification                                B
 Warranty Period                                   1 Year
 BIOS Model/Submodel/Revision                      F8/00/00
 Announcement Letter Numbers                       NDD87-137, 187-???
 Date Announced                                    04/02/87
 Date Withdrawn                                    10/31/90


ΓòÉΓòÉΓòÉ 10.17.2. PS/2 Model 80-081/121/161/321 Tech Specs ΓòÉΓòÉΓòÉ

The PS/2 Models 80-081/121/161/321 models are identical except for the size of
the hard disk drive.  Therefore all models will be covered by this one
document. Differences will be indicated by model number in parentheses.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Jump directly to the PS/2 Model 80 386DX Systems header.


ΓòÉΓòÉΓòÉ 10.17.2.1. PS/2 Model 80-081/121/161/321: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 80-081/121/161/321 header.

 DESCRIPTION                                       8580-081/121/161/321
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    Intel 386DX
 Clock Speed                                       20 MHz
 Instruction Set                                   32 bit
 Addressing                                        32 bit
 I/O Channel Width                                 32/16 Bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
 DMA Burst Mode Supported                          Yes
 Bus Masters Supported                             15
 External Processor Cache                          No
 Upgradeable Processor Complex                     No
 Uses Matched Memory Cycle                         Yes
 Uses Page Memory Logic                            Yes

 MEMORY
 Standard (Motherboard)                            2MB(3p)/4MB(7s)(6j)
 Maximum (Motherboard)                             4MB (7s)
 Maximum (System)                                  16MB
 Total # of Memory Sockets                         2
 # of Memory Sockets Available                     1/0 (6j)
 Memory Chip Speed (ns)                            80
 Memory Chip Type                                  DRAM
 Memory Cache Controller                           No
 Wait States: Motherboard                          0-2
        Adapter                                    1
 Memory Used: Motherboard                          2MB Card


ΓòÉΓòÉΓòÉ 10.17.2.2. PS/2 Model 80-081/121/161/321: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 80-081/121/161/321 header.

 DESCRIPTION                                       8580-081/121/161/321
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 Optional Math Co-processor                        387
  Co-processor Speed                               20MHz
 Standard Graphics                                 VGA
  8/16/32-bit Controller                           8
  Bus Master                                       No
  Video Memory (DRAM) Standard                     256K
 Maximum Graphics                                  XGA (c)
  8/16/32-bit Controller                           32
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
 RS232C Serial Ports Standard                      1
  UART Chip Used                                   NS16550AFN
  Maximum Speed (bits/second)                      19,200
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Maximum Ports Supported                          8 (6i)
  Supports DMA Data Transfer                       No
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 SCSI port                                         Yes (3s)
  Internal/External Connectors                     Yes/Yes
  On Motherboard/Adapter                           Adapter


ΓòÉΓòÉΓòÉ 10.17.2.3. PS/2 Model 80-081/121/161/321: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 80-081/121/161/321 header.

 DESCRIPTION                                       8580-081/121/161/321
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     5 or 6 (3v)
  # of 3.5"/5.25" Bays                             4/1 or 6/0 (3v)
  # of 3.5"/5.25" Bays Available                   2/1 or 4/0 (3v)
 Diskette Drives Standard                          1x1.44MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)
  5.25" 1.2MB                                      Optional (j)(3t)(2z)
  3.5" 720K                                        N/A (y)
  3.5" 1.44MB                                      Optional (i)(2j)
  Internal Drives Supported                        3 (3t)
  External Drives Supported                        1 (4n)
  Maximum # Diskette Drives                        4 (3t)(4n)
 Hard Disk Drives Standard                         1x80MB (081)
                                                   1x120MB (121)
                                                   1x160MB (161)
                                                   1x320MB (321)
  Drive Form Factor                                3.5" (80MB)
  Encoding Method                                  MFM (120MB)
                                                   RLL (80MB/160MB/320MB)
  Sector Buffer Size                               32K (80MB/120MB/160MB)
                                                   64K (320MB)
  Data Transfer Rate (/second)                     1.25 MBytes (120MB)
                                                   1.5 MBytes (80MB/160MB)
                                                   2.0 MBytes (320MB)
  Rotational Speed (RPMs)                          3600 (80MB/120MB/160MB)
                                                   4316 (320MB)
  # of Heads                                       4 (80MB)
                                                   8 (120MB/160MB)
                                                   14 (320MB)
  # of Platters                                    2 (80MB)
                                                   4 (120MB/160MB)
                                                   8 (320MB)
  Sectors per Track                                39 (80MB/160MB)
                                                   32 (120MB)
                                                   48 (320MB)
  Cylinders                                        920 (120MB)
                                                   949 (320MB)
                                                   1021 (80MB/160MB)
  Shock Rating (Gs): Operating                     10 (80MB/160MB/320MB)
                                                   ??? (120MB)
            Non-operating                          35 (320MB)
                                                   50 (80MB/160MB)
                                                   ??? (120MB)
  MTBF (Hours)                                     110,000 (80MB/160MB)
                                                   150,000 (320MB)
                                                   ??? (120MB)
  Auto Park                                        Yes (80MB)
  Drive Type                                       SCSI (80MB)
  Encoding Method                                  RLL (80MB)
  Shock Rating (Gs): Operating                     10 (80MB)
            Non-operating                          50 (80MB)
  MTBF (Hours)                                     110,000 (80MB)
  Maximum # of Internal HD Drives                  3 or 4 (3v)
  Optional HD Sizes Available:                     170MB (13ms)
                                                   340MB (13ms)
                                                   540MB (8.7ms)
                                                   1GB (8.6ms)
                                                   2GB (9.5ms)
  Maximum Internal HD Capacity                     8GB (3z)(4o)(5k)
 Standard Hard Disk Controller Type                SCSI
  Bus Master                                       Yes
   16-bit Adapter                                  Standard
   32-bit Adapter with Cache                       Optional
  # of Devices Supported/Adapter                   7/15 (3r)
  # of Adapters Supported/System                   4
  Controller Data Transfer/Second
   Ctrlr to Micro Channel                          6.6 MBytes
   Ctrlr to SCSI devices                           5.0 MBytes
 Interleave Factor                                 1:1
 Optional 2nd Controller                           ESDI (4q)
 Internal Rewritable Optical Disk Drives           Optional
  Maximum Internal Drives Supported                1 (5k)
 Internal Optical CD-ROM Drives                    Optional
  Maximum Internal Drives Supported                1 (5k)

 TAPE STORAGE
 Internal Tape Drive Support
  3.5" Internal Tape Backup Unit                   Yes (2j)
 5.25" QIC SCSI Tape Drive                         No
  5.25" 4mm SCSI Tape Drive                        Yes (7i)
  5.25" 8mm SCSI Tape Drive                        No
 External Tape Drive Support
  5.25" 6157 Streaming Tape                        Models 001/002 (c)
  5.25" QIC SCSI Tape Drive                        Yes
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        Yes


ΓòÉΓòÉΓòÉ 10.17.2.4. PS/2 Model 80-081/121/161/321: Expansion/Operating Systems ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 80-081/121/161/321 header.

 DESCRIPTION                                       8580-081/121/161/321
 EXPANSION
 Total Adapter Slots                               8
  # of Long/Short Slots                            8/0
  # of 8/16/32-bit Slots                           0/5/3 (3a)(3y)
  Non-RAM use of 32-bit Slots                      Yes
  # of Slots with Video Extension                  1
 Available Slots                                   7
  Maximum RAM with Available Slots                 16MB
  # of Slots Required for Maximum                  1 (3q)
 # of Slots Avail after Maximum                    6

 OPERATING SYSTEM SUPPORT
 IBM PC/DOS                                        3.3 or later
 IBM OS/2                                          1.2 or later
 IBM AIX PS/2                                      1.2.1 (with the Golden PTF)
                                                   or later


ΓòÉΓòÉΓòÉ 10.17.2.5. PS/2 Model 80-081/121/161/321: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 80-081/121/161/321 header.

 DESCRIPTION                                       8580-081/121/161/321
 KEYBOARD
 101-Key Enhanced Keyboard                         Yes
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         10.0

 SECURITY
 C2 Security Enabled                               No
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Keyboard Password                                 Yes
 Power-on Password                                 Yes
  Network Server Mode                              Yes


ΓòÉΓòÉΓòÉ 10.17.2.6. PS/2 Model 80-081/121/161/321: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 80-081/121/161/321 header.

 DESCRIPTION                                       8580-081/121/161/321
 PHYSICAL FACTORS
 Footprint Type                                    Floor-standing
 Dimensions: Height                                23.5"
       Width                                       6.5"
       Depth                                       19.0"
 Weight (lbs)                                      45.3

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              242
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-137 VAC                          5.3
        180-265 VAC                                2.7
 Maximum Current Leakage (uA)                      <500
 Operating Range: Temperature                      60-90┬░ F
          Rel. Humidity                            8-80%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  1390
 Noise Level Classification                        3D
  Noise (Avg dB, Operating, 1m)                    40

 MISCELLANEOUS
 FCC Classification                                B
 Warranty Period                                   1 Year
 BIOS Model/Submodel/Revision                      F8/01/00
 Announcement Letter Numbers                       NDD90-222, 191-??? (121/321)
                                                   NDD90-445, 191-??? (081/161)
 Date Announced                                    03/20/90 (121/321)
                                                   10/30/90 (081/161)
 Date Withdrawn                                    01/29/91 (121)
                                                   08/12/92 (081/161/321)


ΓòÉΓòÉΓòÉ 10.17.3. PS/2 Model 80-111/311 Tech Specs ΓòÉΓòÉΓòÉ

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Jump directly to the PS/2 Model 80 386DX Systems header.


ΓòÉΓòÉΓòÉ 10.17.3.1. PS/2 Model 80-111/311: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 80-111/311 header.

 DESCRIPTION                                       8580-111/311
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    Intel 386DX
 Clock Speed                                       20 MHz
 Instruction Set                                   32 Bit
 Addressing                                        32 Bit
 I/O Channel Width                                 32/16 Bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
 DMA Burst Mode Supported                          Yes
 Bus Masters Supported                             15
 Upgradeable Processor Complex                     No
 Matched Memory Cycle                              Yes
 Page Memory Logic                                 Yes

 MEMORY
 Standard (Motherboard)                            2MB (3p)
 Maximum (Motherboard)                             4MB (7s)
 Maximum Addressable (System)                      16MB
 Total # of Sys Bd Mem Sockets                     2
 # of Sys Bd Mem Sockets Avail                     1
 Memory Chip Speed (ns)                            80
 Memory Chip Type                                  DRAM
 Memory Cache Controller                           No
 Wait States: Motherboard                          0-2
        Adapter                                    1
 Memory Used: Motherboard                          1MB/2MB/4MB Card


ΓòÉΓòÉΓòÉ 10.17.3.2. PS/2 Model 80-111/311: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 80-111/311 header.

 DESCRIPTION                                       8580-111/311
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     No
 Optional Math Coprocessor                         387
  Coprocessor Speed                                20MHz
 Standard Graphics                                 VGA
  Video Memory (DRAM) Standard                     256K
  8/16/32-bit Controller                           8
  Bus Master                                       No
 Maximum Graphics                                  XGA (c)
  Video Memory (DRAM) Standard                     1MB
  8/16/32-bit Controller                           32
  Bus Master                                       Yes
 RS232C Serial Ports                               1
  UART Chip Used                                   NS16550
  Maximum Speed (bits/second)                      19,200
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       No
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes


ΓòÉΓòÉΓòÉ 10.17.3.3. PS/2 Model 80-111/311: Disk/Tape Drives ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 80-111/311 header.

 DESCRIPTION                                       8580-111/311
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     4
  # of 3.5"/5.25" Bays                             2/2
  # of 3.5"/5.25" Bays Available                   1/1
 Diskette Drives Standard                          1x1.44MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)
  5.25" 1.2MB                                      Optional (j)
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      Optional (i)(2j)
  Internal Drives Supported                        3 (2z)
  External Drives Supported                        1
  Maximum # Diskette Drives                        4 (2z)
 Hard Disk Drives Standard                         1x115MB (111)
                                                   1x314MB (311)
  Drive Type                                       ESDI
  Encoding Method                                  MFM
  Drive Form Factor                                5.25"
  # of Heads                                       7 (115MB)
                                                   15 (314MB)
  # of Platters                                    4 (115MB)
                                                   8 (314MB)
  Sectors per Track                                36 (115MB)
                                                   34 (314MB)
  Cylinders                                        915 (115MB)
                                                   1225 (314MB)
  Maximum # of HD Drives                           2 (2z)
  Optional HD Drive Sizes Available                70MB (30ms)
                                                   115MB (28ms)
                                                   314MB (23ms)
  Maximum Internal HD Capacity                     429MB (111)
                                                   628MB (311)
  Controller Type                                  ESDI
  Data Transfer Rate (Mb/second)                   10.0
  Interleave Factor                                1:1
  Auto Park                                        Yes
 Maximum # of DD and HD Drives                     5

 TAPE STORAGE
 Internal Tape Drive Support                       Yes
  3.5" Internal Tape Backup Unit                   Yes (2j)
  5.25" QIC SCSI Tape Drive                        No
  5.25" 4mm SCSI Tape Drive                        Yes (7i)
  5.25" 8mm SCSI Tape Drive                        No
 External Tape Drive Support
  5.25" 6157 Streaming Tape                        Models 001/002 (c)
  5.25" QIC SCSI Tape Drive                        Yes (4l)
  5.25" 4mm SCSI Tape Drive                        Yes (4l)
  5.25" 8mm SCSI Tape Drive                        Yes (4l)


ΓòÉΓòÉΓòÉ 10.17.3.4. PS/2 Model 80-111/311: Expansion/Operating Systems ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 80-111/311 header.

 DESCRIPTION                                       8580-111/311
 EXPANSION
 Total Adapter Slots                               8
  # of Long/Short Slots                            8/0
  # of 8/16/32-bit Slots                           0/5/3 (3a)
  # of Slots with Video Extension                  1
  Non-RAM use of 32-bit Slots                      Yes
 Available Slots                                   7
  Max. RAM with Available Slots                    16MB
  Max. RAM Using Only 1 Slot                       16MB (3q)
  # of Slots Required for Maximum                  1
 # of Slots Avail after Maximum                    6

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        3.3 or later
 IBM OS/2                                          1.1 or later
 IBM AIX PS/2                                      1.1 or later


ΓòÉΓòÉΓòÉ 10.17.3.5. PS/2 Model 80-111/311: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 .Keyboard/Security                                Physical/Environmental/Misc

 Return to the PS/2 Model 80-111/311 header.

 DESCRIPTION                                       8580-111/311
 KEYBOARD
 101-Key Enhanced Keyboard                         Yes
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         10.0

 SECURITY
 C2 Security Enabled                               No
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Keyboard Password                                 Yes
 Power-on Password                                 Yes
  Network Server Mode                              Yes


ΓòÉΓòÉΓòÉ 10.17.3.6. PS/2 Model 80-111/311: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 80-111/311 header.

 DESCRIPTION                                       8580-111/311
 PHYSICAL FACTORS
 Footprint Type                                    Floor-standing
 Dimensions: Height                                23.5"
       Width                                       6.5"
       Depth                                       19.0"
 Weight (lbs)                                      52.0

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              225
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-137 VAC                          5.3
        180-265 VAC                                2.7
 Maximum Current Leakage (uA)                      <500
 Operating Range: Temperature                      60-90┬░ F
          Rel. Humidity                            8-80%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  1245
 Noise Level Classification                        1
  Noise (Avg dB, Operating, 1m)                    46

 MISCELLANEOUS
 FCC Classification                                B
 Warranty Period                                   1 Year
 BIOS Model/Submodel/Revision                      F8/01/00
 Announcement Letter Numbers                       NDD87-138, 187-??? (111)
                                                   NDD87-427, 191-??? (311)
 Date Announced                                    04/02/87 (111)
                                                   08/04/87 (311)
 Date Withdrawn                                    12/27/90


ΓòÉΓòÉΓòÉ 10.17.4. PS/2 Model 80-A16/A21/A31 Tech Specs ΓòÉΓòÉΓòÉ

The PS/2 Models 80-A16/A21/A31 models are identical except for the size of the
hard disk drive.  Therefore all models will be covered by this one document.
Differences will be indicated by model number in parentheses.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Jump directly to the PS/2 Model 80 386DX Systems header.


ΓòÉΓòÉΓòÉ 10.17.4.1. PS/2 Model 80-A16/A21/A31: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 80-A16/A21/A31 header.

 DESCRIPTION                                       8580-A16/A21/A31
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    Intel 386DX
 Clock Speed                                       25 MHz
 Instruction Set                                   32 bit
 Addressing                                        32 bit
 I/O Channel Width                                 32/16 Bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
 DMA Burst Mode Supported                          Yes
 Bus Masters Supported                             15
 Upgradeable Processor Complex                     No
 Uses Matched Memory Cycle                         Yes
 Uses Page Memory Logic                            Yes

 MEMORY
 Standard (Motherboard)                            4MB (4b)
 Maximum (Motherboard)                             8MB (7r)
 Maximum (System)                                  16MB
 Total # of Sys Bd Mem Sockets                     2
 # of Sys Bd Mem Sockets Avail                     1
 Memory Chip Speed (ns)                            80
 Memory Chip Type                                  DRAM
 Memory Cache Controller                           Yes
  Internal/External Cache                          External
  Standard Memory Cache Size                       64K
  Cache Memory Type                                SRAM
  Cache Memory Speed (ns)                          25
 Wait States: Motherboard                          0-2 (3c)
        Adapter                                    0-2 (3c)
 Memory Used: Motherboard                          2MB/4MB Card


ΓòÉΓòÉΓòÉ 10.17.4.2. PS/2 Model 80-A16/A21/A31: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 80-A16/A21/A31 header.

 DESCRIPTION                                       8580-A16/A21/A31
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 Optional Math Coprocessor                         387
  Co-processor Speed                               25MHz
 Standard Graphics                                 VGA
  8/16/32-bit Controller                           8
  Bus Master                                       No
  Video Memory (DRAM) Standard                     256K
 Maximum Graphics                                  XGA (c)
  8/16/32-bit Controller                           32
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
 RS232C Serial Ports Standard                      1
  UART Chip Used                                   NS16550AFN
  Maximum Speed (bits/second)                      19,200
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 SCSI port                                         Yes (3s)
  Internal/External Connectors                     Yes/Yes
  On Motherboard/Adapter                           Adapter


ΓòÉΓòÉΓòÉ 10.17.4.3. PS/2 Model 80-A16/A21/A31: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 80-A16/A21/A31 header.

 DESCRIPTION                                       8580-A16/A21/A31
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     5 or 6 (3v)
  # of 3.5"/5.25" Bays                             4/1 or 6/0 (3v)
  # of 3.5"/5.25" Bays Available                   2/1 or 4/0 (3v)
 Diskette Drives Standard                          1x1.44MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)
  5.25" 1.2MB                                      Optional (j)(3t)
  3.5" 720K                                        N/A (y)
  3.5" 1.44MB                                      Optional (i)(2j)
  Internal Drives Supported                        3 (3t)
  External Drives Supported                        1 (4n)
  Maximum # Diskette Drives                        4 (3t)(4n)
 Hard Disk Drives Standard                         1x120MB (A21)
                                                   1x160MB (A16)
                                                   1x320MB (A31)
  Drive Type                                       SCSI
  Encoding Method                                  MFM (120MB)
                                                   RLL (160MB/320MB)
  Drive Form Factor                                3.5"
  Sector Buffer Size                               32K (120MB/160MB)
                                                   64K (320MB)
  Data Transfer Rate (/second)                     1.25 MBytes (120MB)
                                                   1.5 MBytes (160MB)
                                                   2.0 MBytes (320MB)
  Rotational Speed (RPMs)                          3600 (120MB/160MB)
                                                   4316 (320MB)
  # of Heads                                       8 (120MB)
                                                   8 (160MB)
                                                   14 (320MB)
  # of Platters                                    4 (120MB/160MB)
                                                   8 (320MB)
  Sectors per Track                                32 (120MB)
                                                   39 (160MB)
                                                   48 (320MB)
  Cylinders                                        920 (120MB)
                                                   949 (320MB)
                                                   1021 (160MB)
  Auto Park                                        Yes
   Shock Rating (Gs): Operating                    10 (160MB/320MB)
             Non-operating                         35 (320MB)
                                                   50 (160MB)
  MTBF (Hours)                                     110,000 (160MB)
                                                   150,000 (320MB)
  Maximum # of Internal HD Drives                  3 or 4 (3v)
  Optional HD Sizes Available:                     170MB (13ms)
                                                   340MB (13ms)
                                                   540MB (8.7ms)
                                                   1GB (8.6ms)
                                                   2GB (9.5ms)
  Maximum Internal HD Capacity                     6GB or 8GB (3v)(3z)(4o)(5k)
 Std Hard Disk Controller Type                     SCSI
  Bus Master                                       Yes
   16-bit Adapter                                  Standard
   32-bit Adapter with Cache                       Optional
  # of Devices Supported/Adapter                   7/15 (3r)
  # of Adapters Supported/System                   4
  Controller Data Transfer/sec
   Ctrlr to Micro Channel                          6.6 MBytes
   Ctrlr to SCSI devices                           5.0 MBytes
  Interleave Factor                                1:1
 Optional 2nd Controller                           ESDI (4q)
 Internal Rewritable Optical Disk Drives           Optional
  Max. Internal Drives Supported                   1 (5k)
 Internal Optical CD-ROM Drives                    Optional
  Max. Internal Drives Supported                   1 (5k)

 TAPE STORAGE
 Internal Tape Drive Support
  3.5" Internal Tape Backup Unit                   Yes (2j)
  5.25" QIC SCSI Tape Drive                        No
  5.25" 4mm SCSI Tape Drive                        Yes (7i)
  5.25" 8mm SCSI Tape Drive                        No
 External Tape Drive Support
  5.25" 6157 Streaming Tape                        Models 001/002 (c)
  5.25" QIC SCSI Tape Drive                        Yes
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        Yes


ΓòÉΓòÉΓòÉ 10.17.4.4. PS/2 Model 80-A16/A21/A31: Expansion/Operating Systems ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 80-A16/A21/A31 header.

 DESCRIPTION                                       8580-A16/A21/A31
 EXPANSION
 Total Adapter Slots                               8
  # of Long/Short Slots                            8/0
  # of 8/16/32-bit Slots                           0/4/4 (3a)(3y)
  Non-RAM use of 32-bit Slots                      Yes
  # of Slots with Video Extension                  2
 Available Slots                                   7
  Max. RAM with Available Slots                    16MB
  Max. RAM Using Only 1 Slot                       16MB (3d)
  # of Slots Required for Maximum                  1
 # of Slots Avail after Maximum                    6

 OPERATING SYSTEM SUPPORT
 IBM PC/DOS                                        3.3 or later
 IBM OS/2                                          1.2 or later
 IBM AIX PS/2                                      1.2 or later (A21/A31)
                                                   1.2.1 (with the Golden PTF)
                                                   or later (A16)


ΓòÉΓòÉΓòÉ 10.17.4.5. PS/2 Model 80-A16/A21/A31: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 80-A16/A21/A31 header.

 DESCRIPTION                                       8580-A16/A21/A31
 KEYBOARD
 101-Key Enhanced Keyboard                         Yes
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         10.0

 SECURITY
 C2 Security Enabled                               No
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Keyboard Password                                 Yes
 Power-on Password                                 Yes
  Network Server Mode                              Yes


ΓòÉΓòÉΓòÉ 10.17.4.6. PS/2 Model 80-A16/A21/A31: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the PS/2 Model 80-A16/A21/A31 header.

 DESCRIPTION                                       8580-A16/A21/A31
 PHYSICAL FACTORS
 Footprint Type                                    Floor-standing
 Dimensions: Height                                23.5"
       Width                                       6.5"
       Depth                                       19.0"
 Weight (lbs)                                      45.3

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              242
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-137 VAC                          5.3
        180-265 VAC                                2.7
 Maximum Current Leakage (uA)                      <500
 Operating Range: Temperature                      60-90┬░ F
          Rel. Humidity                            8-80%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  1390
 Noise Level Classification                        3D
  Noise (Avg dB, Operating, 1m)                    40

 MISCELLANEOUS
 FCC Classification                                B
 Warranty Period                                   1 Year
 BIOS Model/Submodel/Revision                      F8/80/00
 Announcement Letter Numbers                       NDD90-223, 191-??? (A21/A31)
                                                   NDD90-445, 191-??? (A16)
 Date Announced                                    03/20/90 (A21/A31)
                                                   10/30/90 (A16)
 Date Withdrawn                                    01/29/91 (A21)
                                                   ??/??/9? (A16/A31)


ΓòÉΓòÉΓòÉ 10.18. PS/2 Model 90 486SX Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
486SX-based Model 90 systems.

Choose the section to which you wish to jump, below:

 20MHz Systems                                     25MHz Systems
 PS/2 Model 90-0G5/0G9 (8590)                      PS/2 Model 90-0H5/0H9 (8590)

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 10.18.1. PS/2 Model 90-0G5/0G9 Tech Specs ΓòÉΓòÉΓòÉ

The PS/2 Models 90-0G5 and 90-0G9 are identical except for the hard disk drive
used.  Therefore both models will be covered by this one document. Differences
will be indicated by model number in parentheses.

Note:  These models have been withdrawn.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Jump directly to the PS/2 Model 90 486SX Systems header.


ΓòÉΓòÉΓòÉ 10.18.1.1. PS/2 Model 90-0G5/0G9: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the 90-0G5/0G9 header.

 DESCRIPTION                                       8590-0G5/0G9
 ARCHITECTURE
 Bus Type                                          Micro Channel (5t)
 Microprocessor                                    486SX (5t)
 Clock Speed                                       20 MHz
 Instruction Set                                   32 Bit
 Addressing                                        32 Bit
 I/O Channel Width                                 32 Bit
 Memory Channel Width                              64 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
  DMA Burst Mode Supported                         Yes
 Bus Masters Supported                             15
 486 Burst Mode Enabled                            Yes
 Upgradeable Processor Complex                     Yes (5t)
  Processor Upgrades Available                     25MHz 486DX
                                                   33MHz 486DX
                                                   50/25MHz 486DX2
                                                   66/33MHz 486DX2
                                                   50MHz 486DX
                                                   60MHz Pentium
 Matched Memory Cycle                              N/A (5i)
 Page Memory Logic                                 Yes

 MEMORY
 Standard (Motherboard)                            4MB (5p)
 Maximum (Motherboard)                             64MB (5j)
 Maximum (System)                                  64MB (2r)
 Total # of Motherboard SIMM Sockets               8
 # of Motherboard SIMM Sockets Available           6
 Memory Chip Speed (ns)                            70 (4y)(5o)
 Memory Type                                       DRAM
  Memory Interleaving                              Yes
 Memory Cache Controller                           Yes
  Internal/External Cache                          Internal
  Standard Memory Cache Size                       8K
  Optional External Memory Cache                   No
 Wait States: Motherboard                          0
        Adapter                                    N/A (8q)
 Memory Chips Used: System Bd                      1/2/4/8MB SIMMs


ΓòÉΓòÉΓòÉ 10.18.1.2. PS/2 Model 90-0G5/0G9: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the 90-0G5/0G9 header.

 DESCRIPTION                                       8590-0G5/0G9
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 BIOS Extensions Stored on Disk                    Yes (5v)
 Setup & Diags Stored on Disk                      Yes (5v)
 Optional Math Coprocessor                         487SX
  Coprocessor Speed                                20MHz
 Standard Graphics                                 XGA
  8/16/32-bit Controller                           32
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     512K
 Maximum Graphics                                  XGA-2 (c)
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Adapter
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
  Resolutions Supported                            640x480 64K Colors
                                                   800x600 64K Colors
                                                   1024x768 256 Colors
                                                   1280x1024 16 Colors
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 RS232C Serial Ports                               2
  UART Chip Used                                   ???
  Maximum Speed (bits/second)                      345,600
   FIFO Mode Enabled                               Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 SCSI port                                         Yes (5c)
  Internal/External Connectors                     Yes/Yes
  On Motherboard/Adapter                           Motherboard


ΓòÉΓòÉΓòÉ 10.18.1.3. PS/2 Model 90-0G5/0G9: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the 90-0G5/0G9 header.

 DESCRIPTION                                       8590-0G5/0G9
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     4
  # of 3.5"/5.25" Bays                             3/1
  # of 3.5"/5.25" Bays Available                   1/1
 Selectable Boot                                   Yes
  Bootable Physical Drives                         All
 Diskette Drives Standard                          1x1.44MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)(7t)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (j)(7t)
   Media Sensing                                   No
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      Optional (i)
   Media Sensing                                   No
  3.5" 2.88MB                                      No
  Internal Drives Supported                        3 (5r)
  External Drives Supported                        1 (4n)
  Maximum # Diskette Drives                        4 (4n)(5r)
 Hard Disk Drives Standard                         1x80MB (0G5)
                                                   1x160MB (0G9)
  Drive Type                                       SCSI
  Encoding Method                                  RLL
  Drive Form Factor                                3.5"
  Average Access Rate (ms)                         17 (80MB)
                                                   16 (160MB)
  Sector Buffer Size                               32K
  Data Transfer Rate (/second)                     1.5 MBytes
  Average Latency (ms)                             8.3
  Rotational Speed (RPMs)                          3600
  # of Heads                                       4 (80MB)
                                                   8 (160MB)
  # of Platters                                    2 (80MB)
                                                   4 (160MB)
  Sectors per Track                                39
  Cylinders                                        1021
  Shock Rating (Gs): Operating                     10
            Non-operating                          50
  MTBF (Hours)                                     110,000
  Auto Park                                        Yes
  Maximum # of Internal HD Drives                  3
  Optional HD Sizes Available:                     170MB (13ms)
                                                   340MB (13ms)
                                                   540MB (8.7ms)
                                                   1GB (8.6ms)
                                                   2GB (9.5ms)
  Maximum Internal HD Capacity                     6GB (3z)(4o)(5k)
 Standard Hard Disk Controller Type                SCSI
  Bus Master                                       Yes
   16-bit Adapter                                  Optional
   32-bit Adapter with Cache                       Standard
  # of Devices Supported/Adapter                   7/15 (3r)
  # of Adapters Supported/System                   4
  Controller Data Transfer/second
   Controller to Micro Channel                     13.3 MBytes
   Controller to SCSI devices                      5.0 MBytes
  Interleave Factor                                1:1
 Internal Rewritable Optical Disk Drives           Optional
  Maximum Internal Drives Supported                1 (5k)
 Internal Optical CD-ROM Drives                    Optional
  Maximum Internal Drives Supported                1 (5k)

 TAPE STORAGE
 Internal Tape Drive Support
  3.5" Internal Tape Backup Unit                   Yes (5r)
  5.25" QIC SCSI Tape Drive                        No
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        No
 External Tape Drive Support                       Yes
  5.25" 6157 Streaming Tape                        Models 001/002 (c)
  5.25" QIC SCSI Tape Drive                        Yes
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        Yes


ΓòÉΓòÉΓòÉ 10.18.1.4. PS/2 Model 90-0G5/0G9: Expansion/Operating System ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the 90-0G5/0G9 header.

 DESCRIPTION                                       8590-0G5/0G9
 EXPANSION
 Total Adapter Slots                               4
  # of Long/Short Slots                            4/0
  # of 8/16/32-bit Slots                           0/0/4 (3a)
  # of Slots with Video Extension                  1
  Non-RAM use of 32-bit Slots                      Yes
 Available Slots                                   3 (5l)
  Maximum RAM with Available Slots                 64MB (8q)

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        3.3 or later
 IBM OS/2                                          1.2 or later
 IBM AIX PS/2                                      1.2.1 (with the Golden PTF)
                                                   or later


ΓòÉΓòÉΓòÉ 10.18.1.5. PS/2 Model 90-0G5/0G9: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the 90-0G5/0G9 header.

 DESCRIPTION                                       8590-0G5/0G9
 KEYBOARD
 101-Key Enhanced Keyboard                         Yes
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         6.0

 SECURITY
 C2 Security Enabled                               No
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Keyboard Password                                 Yes
 Power-on Password                                 Yes
  Network Server Mode                              Yes


ΓòÉΓòÉΓòÉ 10.18.1.6. PS/2 Model 90-0G5/0G9: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the 90-0G5/0G9 header.

 DESCRIPTION                                       8590-0G5/0G9
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
 Dimensions: Height                                5.5"
       Width                                       17.3"
       Depth                                       16.9"
 Weight (lbs)                                      25.0
 Max Monitor Weight Supported by Cabinet (lbs)     40 (4z)

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              194
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-137 VAC                          4.8
        180-264 VAC                                2.4
 Maximum Current Leakage (uA)                      <500
 Operating Range: Temperature                      50-95┬░ F
          Rel. Humidity                            8-80%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  662
 Noise Level Classification                        ???
  Noise (Avg dB, Operating, 1m)                    ???

 MISCELLANEOUS
 FCC Classification                                B
 UL Approval                                       UL 478, 5th Edition
 CSA Approval                                      CS220
 Warranty Period                                   1 Year
 BIOS Model/Submodel/Revision                      F8/2D/00 (No 487SX
                                                   installed) (6l)
                                                   F8/2F/00 (With 487SX
                                                   installed) (6l)
 Announcement Letter Numbers                       NDD91-142, 191-???
 Date Announced                                    04/23/91
 Date Withdrawn                                    01/17/92


ΓòÉΓòÉΓòÉ 10.18.2. PS/2 Model 90-0H5/0H9 Tech Specs ΓòÉΓòÉΓòÉ

The PS/2 Models 90-0H5 and 90-0H9 are identical except for the hard disk drive
used.  Therefore both models will be covered by this one document. Differences
will be indicated by model number in parentheses.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Jump directly to the PS/2 Model 90 486SX Systems header.


ΓòÉΓòÉΓòÉ 10.18.2.1. PS/2 Model 90-0H5/0H9: Architecture/Memory ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the 90-0H5/0H9 header.

 DESCRIPTION                                       8590-0H5/0H9
 ARCHITECTURE
 Bus Type                                          Micro Channel (5t)
 Microprocessor                                    486SX (5t)
 Clock Speed                                       25 MHz
 Instruction Set                                   32 Bit
 Addressing                                        32 Bit
 I/O Channel Width                                 32 Bit
 Memory Channel Width                              64 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
  DMA Burst Mode Supported                         Yes
 Bus Masters Supported                             15
 486 Burst Mode Enabled                            Yes
 Upgradeable Processor Complex                     Yes (5t)
  Processor Upgrades Available                     25MHz 486DX
                                                   33MHz 486DX
                                                   50/25MHz 486DX2
                                                   66/33MHz 486DX2
                                                   50MHz 486DX
                                                   60MHz Pentium
 Matched Memory Cycle                              N/A (5i)
 Page Memory Logic                                 Yes

 MEMORY
 Standard (Motherboard)                            4MB (5p)
 Maximum (Motherboard)                             64MB (5j)
 Maximum (System)                                  64MB (2r)
 Total # of Motherboard SIMM Sockets               8
 # of Motherboard SIMM Sockets Available           6
 Memory Chip Speed (ns)                            70 (9r)(5o)
 Memory Type                                       DRAM
  Memory Interleaving                              Yes
 Memory Cache Controller                           Yes
  Internal/External Cache                          Internal
  Standard Memory Cache Size                       8K
  Optional External Memory Cache                   No
 Wait States: Motherboard                          0
        Adapter                                    N/A (8q)
 Memory Chips Used: System Bd                      1/2/4/8MB SIMMs


ΓòÉΓòÉΓòÉ 10.18.2.2. PS/2 Model 90-0H5/0H9: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the 90-0H5/0H9 header.

 DESCRIPTION                                       8590-0H5/0H9
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 BIOS Extensions Stored on Disk                    Yes (5v)
 Setup & Diags Stored on Disk                      Yes (5v)
 Optional Math Coprocessor                         487SX
  Coprocessor Speed                                25 MHz
 Standard Graphics                                 XGA
  8/16/32-bit Controller                           32
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     512K
 Maximum Graphics                                  XGA-2 (c)
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Adapter
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
  Resolutions Supported                            640x480 64K Colors
                                                   800x600 64K Colors
                                                   1024x768 256 Colors
                                                   1280x1024 16 Colors
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 RS232C Serial Ports                               2
  UART Chip Used                                   ???
  Maximum Speed (bits/second)                      345,600
   FIFO Mode Enabled                               Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 SCSI port                                         Yes (5c)
  Internal/External Connectors                     Yes/Yes
  On Motherboard/Adapter                           Motherboard


ΓòÉΓòÉΓòÉ 10.18.2.3. PS/2 Model 90-0H5/0H9: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the 90-0H5/0H9 header.

 DESCRIPTION                                       8590-0H5/0H9
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     4
  # of 3.5"/5.25" Bays                             3/1
  # of 3.5"/5.25" Bays Available                   1/1
 Selectable Boot                                   Yes
  Bootable Physical Drives                         All
 Diskette Drives Standard                          1x1.44MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)(7t)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (j)(7t)
   Media Sensing                                   No
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      Optional (i)
   Media Sensing                                   No
  3.5" 2.88MB                                      No
  Internal Drives Supported                        3 (5r)
  External Drives Supported                        1 (4n)
  Maximum # Diskette Drives                        4 (4n)(5r)
 Hard Disk Drives Standard                         1x80MB (0H5)
                                                   1x160MB (0H9)
  Drive Type                                       SCSI
  Encoding Method                                  RLL
  Drive Form Factor                                3.5"
  Average Access Rate (ms)                         17 (80MB)
                                                   16 (160MB)
  Sector Buffer Size                               32K
  Data Transfer Rate (/second)                     1.5 MBytes
  Average Latency (ms)                             8.3
  Rotational Speed (RPMs)                          3600
  # of Heads                                       4 (80MB)
                                                   8 (160MB)
  # of Platters                                    2 (80MB)
                                                   4 (160MB)
  Sectors per Track                                39
  Cylinders                                        1021
  Shock Rating (Gs): Operating                     10
            Non-operating                          50
  MTBF (Hours)                                     110,000
  Auto Park                                        Yes
  Maximum # of Internal HD Drives                  3
  Optional HD Sizes Available:                     170MB (13ms)
                                                   340MB (13ms)
                                                   540MB (8.7ms)
                                                   1GB (8.6ms)
                                                   2GB (9.5ms)
  Maximum Internal HD Capacity                     6GB (3z)(4o)(5k)
 Standard Hard Disk Controller Type                SCSI
  Bus Master                                       Yes
   16-bit Adapter                                  Optional
   32-bit Adapter with Cache                       Standard
  # of Devices Supported/Adapter                   7/15 (3r)
  # of Adapters Supported/System                   4
  Controller Data Transfer/second
   Controller to Micro Channel                     13.3 MBytes
   Controller to SCSI devices                      5.0 MBytes
  Interleave Factor                                1:1
 Internal Rewritable Optical Disk Drives           Optional
  Maximum Internal Drives Supported                1 (5k)
 Internal Optical CD-ROM Drives                    Optional
  Maximum Internal Drives Supported                1 (5k)

 TAPE STORAGE
 Internal Tape Drive Support
  3.5" Internal Tape Backup Unit                   Yes (5r)
  5.25" QIC SCSI Tape Drive                        No
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        No
 External Tape Drive Support                       Yes
  5.25" 6157 Streaming Tape                        Models 001/002 (c)
  5.25" QIC SCSI Tape Drive                        Yes
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        Yes


ΓòÉΓòÉΓòÉ 10.18.2.4. PS/2 Model 90-0H5/0H9: Expansion/Operating System ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the 90-0H5/0H9 header.

 DESCRIPTION                                       8590-0H5/0H9
 EXPANSION
 Total Adapter Slots                               4
  # of Long/Short Slots                            4/0
  # of 8/16/32-bit Slots                           0/0/4 (3a)
  # of Slots with Video Extension                  1
  Non-RAM use of 32-bit Slots                      Yes
 Available Slots                                   3 (5l)
  Maximum RAM with Available Slots                 64MB (8q)

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        3.3 or later
 IBM OS/2                                          1.30.1 or later
 IBM AIX PS/2                                      1.2.1 (with PTF U401439,
                                                   service level 1009)


ΓòÉΓòÉΓòÉ 10.18.2.5. PS/2 Model 90-0H5/0H9: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the 90-0H5/0H9 header.

 DESCRIPTION                                       8590-0H5/0H9
 KEYBOARD
 101-Key Enhanced Keyboard                         Yes
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         6.0

 SECURITY
 C2 Security Enabled                               No
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Keyboard Password                                 Yes
 Power-on Password                                 Yes
  Network Server Mode                              Yes


ΓòÉΓòÉΓòÉ 10.18.2.6. PS/2 Model 90-0H5/0H9: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the 90-0H5/0H9 header.

 DESCRIPTION                                       8590-0H5/0H9
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
 Dimensions: Height                                5.5"
       Width                                       17.3"
       Depth                                       16.9"
 Weight (lbs)                                      25.0
 Max Monitor Weight Supported by Cabinet (lbs)     40 (4z)

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              194
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-137 VAC                          4.8
        180-264 VAC                                2.4
 Maximum Current Leakage (uA)                      <500
 Operating Range: Temperature                      50-95┬░ F
          Rel. Humidity                            8-80%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  662
 Noise Level Classification                        ???
  Noise (Avg dB, Operating, 1m)                    ???

 MISCELLANEOUS
 FCC Classification                                B
 UL Approval                                       UL 478, 5th Edition
 CSA Approval                                      CS220
 Warranty Period                                   1 Year
 BIOS Model/Submodel/Revision                      F8/57/00 (No 487SX
                                                   installed) (6l)
                                                   F8/59/00 (With 487SX
                                                   installed) (6l)
 Announcement Letter Numbers                       NDD91-487, 191-???
 Date Announced                                    10/17/91
 Date Withdrawn                                    06/23/93


ΓòÉΓòÉΓòÉ 10.19. PS/2 Model 90 486DX Systems ΓòÉΓòÉΓòÉ

Note:  These models have been withdrawn from marketing.

This section contains feature and technical specification information for the
486-based Model 90 systems.

Choose the section to which you wish to jump, below:

 25MHz Systems                                     33MHz Systems
 PS/2 Model 90-0J5/0J9 (8590)                      PS/2 Model 90-0K9/0KD/0KF
                                                   (8590)

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 10.19.1. PS/2 Model 90-0J5/0J9 Tech Specs ΓòÉΓòÉΓòÉ

The PS/2 Models 90-0J5 and 90-0J9 are identical except for the hard disk drive
used.  Therefore both models will be covered by this one document. Differences
will be indicated by model number in parentheses.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Jump directly to the PS/2 Model 90 486 Systems header.


ΓòÉΓòÉΓòÉ 10.19.1.1. PS/2 Model 90-0J5/0J9: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the 90-0J5/0J9 header.

 DESCRIPTION                                       8590-0J5/0J9
 ARCHITECTURE
 Bus Type                                          Micro Channel (5t)
 Microprocessor                                    486DX (5t)
 Clock Speed                                       25 MHz
 Instruction Set                                   32 Bit
 Addressing                                        32 Bit
 I/O Channel Width                                 32 Bit
 Memory Channel Width                              64 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
  DMA Burst Mode Supported                         Yes
 Bus Masters Supported                             15
 486 Burst Mode Enabled                            Yes
 Upgradeable Processor Complex                     Yes (5t)
  Processor Upgrades Available                     33MHz 486DX
                                                   50/25MHz 486DX2
                                                   66/33MHz 486DX2
                                                   50MHz 486DX
                                                   60MHz Pentium
 Matched Memory Cycle                              N/A (5i)
 Page Memory Logic                                 Yes

 MEMORY
 Standard (Motherboard)                            4MB/8MB (5p)(6k)
 Maximum (Motherboard)                             64MB (5j)
 Maximum (System)                                  64MB (2r)
 Total # of Motherboard SIMM Sockets               8
 # of Motherboard SIMM Sockets Available           6/4  (5p)(6k)
 Memory Chip Speed (ns)                            70 (4y)(5o)
 Memory Type                                       DRAM
  Memory Interleaving                              Yes
 Memory Cache Controller                           Yes
  Internal/External Cache                          Internal
  Standard Memory Cache Size                       8K
  Optional External Memory Cache                   Yes (5u)
   External Cache Size                             256K
   External Cache Memory Type                      SRAM
   Ext. Cache Memory Speed (ns)                    17
 Wait States: Motherboard                          0
        Adapter                                    N/A (8q)
 Memory Chips Used: System Bd                      1/2/4/8MB SIMMs


ΓòÉΓòÉΓòÉ 10.19.1.2. PS/2 Model 90-0J5/0J9: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the 90-0J5/0J9 header.

 DESCRIPTION                                       8590-0J5/0J9
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 BIOS Extensions Stored on Disk                    Yes (5v)
 Setup & Diags Stored on Disk                      Yes (5v)
 Optional Math Coprocessor                         Built-in (3g)
  Coprocessor Speed                                25MHz
 Standard Graphics                                 XGA
  8/16/32-bit Controller                           32
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     512K
 Maximum Graphics                                  XGA-2 (c)
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Adapter
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
  Resolutions Supported                            640x480 64K Colors
                                                   800x600 64K Colors
                                                   1024x768 256 Colors
                                                   1280x1024 16 Colors
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 RS232C Serial Ports                               2
  UART Chip Used                                   ???
  Maximum Speed (bits/second)                      345,600
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 SCSI port                                         Yes (5c)
  Internal/External Connectors                     Yes/Yes
  On Motherboard/Adapter                           Motherboard


ΓòÉΓòÉΓòÉ 10.19.1.3. PS/2 Model 90-0J5/0J9: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the 90-0J5/0J9 header.

 DESCRIPTION                                       8590-0J5/0J9
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     4
  # of 3.5"/5.25" Bays                             3/1
  # of 3.5"/5.25" Bays Available                   1/1
 Selectable Boot                                   Yes
  Bootable Physical Drives                         All
 Diskette Drives Standard                          1x1.44MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)(7t)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (j)(7t)
   Media Sensing                                   No
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      Optional (i)
   Media Sensing                                   No
  3.5" 2.88MB                                      No
  Internal Drives Supported                        3 (5r)
  External Drives Supported                        1 (4n)
  Maximum # Diskette Drives                        4 (4n)(5r)
 Hard Disk Drives Standard                         1x80MB (0J5)
                                                   1x160MB (0J9)
  Drive Type                                       SCSI
  Encoding Method                                  RLL
  Drive Form Factor                                3.5"
  Average Access Rate (ms)                         17 (80MB)
                                                   16 (160MB)
  Sector Buffer Size                               32K
  Data Transfer Rate (/second)                     1.5 MBytes
  Average Latency (ms)                             8.3
  Rotational Speed (RPMs)                          3600
  # of Heads                                       4 (80MB)
                                                   8 (160MB)
  # of Platters                                    2 (80MB)
                                                   4 (160MB)
  Sectors per Track                                39
  Cylinders                                        1021
  Shock Rating (Gs): Operating                     10
            Non-operating                          50
  MTBF (Hours)                                     110,000
  Auto Park                                        Yes
  Maximum # of Internal HD Drives                  3
  Optional HD Sizes Available:                     170MB (13ms)
                                                   340MB (13ms)
                                                   540MB (8.7ms)
                                                   1GB (8.6ms)
                                                   2GB (9.5ms)
  Maximum Internal HD Capacity                     6GB (3z)(4o)(5k)
 Standard Hard Disk Controller Type                SCSI
  Bus Master                                       Yes
   16-bit Adapter                                  Optional
   32-bit Adapter with Cache                       Standard
  # of Devices Supported/Adapter                   7/15 (3r)
  # of Adapters Supported/System                   4
  Controller Data Transfer/second
   Controller to Micro Channel                     13.3 MBytes
   Controller to SCSI devices                      5.0 MBytes
  Interleave Factor                                1:1
 Internal Rewritable Optical Disk Drives           Optional
  Maximum Internal Drives Supported                1 (5k)
 Internal Optical CD-ROM Drives                    Optional
  Maximum Internal Drives Supported                1 (5k)

 TAPE STORAGE
 Internal Tape Drive Support
  3.5" Internal Tape Backup Unit                   Yes (5r)
  5.25" QIC SCSI Tape Drive                        No
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        No
 External Tape Drive Support                       Yes
  5.25" 6157 Streaming Tape                        Models 001/002 (c)
  5.25" QIC SCSI Tape Drive                        Yes
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        Yes


ΓòÉΓòÉΓòÉ 10.19.1.4. PS/2 Model 90-0J5/0J9: Expansion/Operating System ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the 90-0J5/0J9 header.

 DESCRIPTION                                       8590-0J5/0J9
 EXPANSION
 Total Adapter Slots                               4
  # of Long/Short Slots                            4/0
  # of 8/16/32-bit Slots                           0/0/4 (3a)
  # of Slots with Video Extension                  1
  Non-RAM use of 32-bit Slots                      Yes
 Available Slots                                   3 (5l)
  Maximum RAM with Available Slots                 64MB (8q)

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        3.3 or later
 IBM OS/2                                          1.2 or later
 IBM AIX PS/2                                      1.2 or later


ΓòÉΓòÉΓòÉ 10.19.1.5. PS/2 Model 90-0J5/0J9: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the 90-0J5/0J9 header.

 DESCRIPTION                                       8590-0J5/0J9
 KEYBOARD
 101-Key Enhanced Keyboard                         Yes
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         6.0

 SECURITY
 C2 Security Enabled                               No
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Keyboard Password                                 Yes
 Power-on Password                                 Yes
  Network Server Mode                              Yes


ΓòÉΓòÉΓòÉ 10.19.1.6. PS/2 Model 90-0J5/0J9: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the 90-0J5/0J9 header.

 DESCRIPTION                                       8590-0J5/0J9
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
 Dimensions: Height                                5.5"
       Width                                       17.3"
       Depth                                       16.9"
 Weight (lbs)                                      25.0
 Max Monitor Weight Supported by Cabinet (lbs)     40 (4z)

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              194
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-137 VAC                          4.8
        180-264 VAC                                2.4
 Maximum Current Leakage (uA)                      <500
 Operating Range: Temperature                      50-95┬░ F
          Rel. Humidity                            8-80%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  662
 Noise Level Classification                        ???
  Noise (Avg dB, Operating, 1m)                    ???

 MISCELLANEOUS
 FCC Classification                                B
 UL Approval                                       UL 478, 5th Edition
 CSA Approval                                      CS220
 Warranty Period                                   1 Year
 Announcement Letter Numbers                       NDD90-444, 191-???
 Date Announced                                    10/30/90
 Date Withdrawn                                    01/17/92


ΓòÉΓòÉΓòÉ 10.19.2. PS/2 Model 90-0K9/0KD/0KF Tech Specs ΓòÉΓòÉΓòÉ

The PS/2 Models 90-0K9, 90-0KD, and 90-0KF are identical except for the hard
disk drive used.  Therefore both models will be covered by this one document.
Differences will be indicated by model number in parentheses.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Jump directly to the PS/2 Model 90 486 Systems header.


ΓòÉΓòÉΓòÉ 10.19.2.1. PS/2 Model 90-0K9/0KD/0KF: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the 90-0K9/0KD/0KF header.

 DESCRIPTION                                       8590-0K9/0KD/0KF
 ARCHITECTURE
 Bus Type                                          Micro Channel (5t)
 Microprocessor                                    486DX (5t)
 Clock Speed                                       33 MHz
 Instruction Set                                   32 Bit
 Addressing                                        32 Bit
 I/O Channel Width                                 32 Bit
 Memory Channel Width                              64 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
  DMA Burst Mode Supported                         Yes
 Bus Masters Supported                             15
 486 Burst Mode Enabled                            Yes
 Upgradeable Processor Complex                     Yes (5t)
  Processor Upgrades Available                     50/25MHz 486DX2
                                                   66/33MHz 486DX2
                                                   50MHz 486DX
                                                   60MHz Pentium
 Matched Memory Cycle                              N/A (5i)
 Page Memory Logic                                 Yes

 MEMORY
 Standard (Motherboard)                            4MB/8MB (5p)(6k)
 Maximum (Motherboard)                             64MB (5j)
 Maximum (System)                                  64MB (2r)
 Total # of Motherboard SIMM Sockets               8
 # of Motherboard SIMM Sockets Available           6/4  (5p)(6k)
 Memory Chip Speed (ns)                            70 (4y)
 Memory Type                                       DRAM
  Memory Interleaving                              Yes
 Memory Cache Controller                           Yes
  Internal/External Cache                          Internal
  Standard Memory Cache Size                       8K
  Optional External Memory Cache                   Yes (5u)
   External Cache Size                             256K
   External Cache Memory Type                      SRAM
   Ext. Cache Memory Speed (ns)                    17
 Wait States: Motherboard                          0
        Adapter                                    N/A (8q)
 Memory Chips Used: System Bd                      1/2/4/8MB SIMMs


ΓòÉΓòÉΓòÉ 10.19.2.2. PS/2 Model 90-0K9/0KD/0KF: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the 90-0K9/0KD/0KF header.

 DESCRIPTION                                       8590-0K9/0KD/0KF
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 BIOS Extensions Stored on Disk                    Yes (5v)
 Setup & Diags Stored on Disk                      Yes (5v)
 Optional Math Coprocessor                         Built-in (3g)
  Coprocessor Speed                                33MHz
 Standard Graphics                                 XGA
  8/16/32-bit Controller                           32
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     512K
 Maximum Graphics                                  XGA-2 (c)
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Adapter
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
  Resolutions Supported                            640x480 64K Colors
                                                   800x600 64K Colors
                                                   1024x768 256 Colors
                                                   1280x1024 16 Colors
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 RS232C Serial Ports                               2
  UART Chip Used                                   ???
  Maximum Speed (bits/second)                      345,600
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 SCSI port                                         Yes (5c)
  Internal/External Connectors                     Yes/Yes
  On Motherboard/Adapter                           Motherboard


ΓòÉΓòÉΓòÉ 10.19.2.3. PS/2 Model 90-0K9/0KD/0KF: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the 90-0K9/0KD/0KF header.

 DESCRIPTION                                       8590-0K9/0KD/0KF
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     4
  # of 3.5"/5.25" Bays                             3/1
  # of 3.5"/5.25" Bays Available                   1/1
 Selectable Boot                                   Yes
  Bootable Physical Drives                         All
 Diskette Drives Standard                          1x1.44MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)(7t)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (j)(7t)
   Media Sensing                                   No
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      Optional (i)
   Media Sensing                                   No
  3.5" 2.88MB                                      No
  Internal Drives Supported                        3 (5r)
  External Drives Supported                        1 (4n)
  Maximum # Diskette Drives                        4 (4n)(5r)
 Hard Disk Drives Standard                         1x160MB (0K9/0KD/0KF)
                                                   1x320MB (0KD)
                                                   1x400MB (0KF)
  Drive Type(s)                                    SCSI
  Recording Method                                 RLL
  Drive Form Factor                                3.5"
  Average Access Rate (ms)                         16 (160MB)
                                                   12.5 (320MB)
                                                   11.5 (400MB)
  Sector Buffer Size                               32K (160MB)
                                                   64K (320MB)
                                                   128K (400MB)
  Data Transfer Rate (Mbits/sec)                   1.5 MBytes (160MB)
                                                   2.0 MBytes (320MB/400MB)
  Average Latency (ms)                             8.3 (160MB)
                                                   6.95 (320MB/400MB)
  Rotational Speed (RPMs)                          3600 (160MB)
                                                   4316 (320MB/400MB)
  # of Heads                                       8 (160MB)
                                                   14 (320MB/400MB)
  # of Platters                                    4 (160MB)
                                                   8 (320MB/400MB)
  Sectors per Track                                39 (160MB)
                                                   48 (320MB/400MB)
  Cylinders                                        1021 (160MB)
                                                   949 (320MB)
                                                   1199 (400MB)
  Shock Rating (Gs): Operating                     10
            Non-operating                          50 (160MB)
                                                   35 (320MB/400MB)
  MTBF (Hours)                                     110,000 (160MB)
                                                   150,000 (320MB/400MB)
  Auto Park                                        Yes
  Maximum # of Internal HD Drives                  3
  Optional HD Sizes Available:                     60MB (23ms) (8s)
                                                   80MB (17ms)
                                                   104MB (12ms)
                                                   120MB (23ms) (8s)
                                                   160MB (16ms)
                                                   212MB (12ms)
                                                   320MB (12.5ms)
                                                   400MB (11.5ms)
  Maximum Internal HD Capacity                     6GB (3z)(4o)(5k)
 Standard Hard Disk Controller Type                SCSI
  Bus Master                                       Yes
   16-bit Adapter                                  Optional
   32-bit Adapter with Cache                       Standard
  # of Devices Supported/Adapter                   7/15 (3r)
  # of Adapters Supported/System                   4
  Controller Data Transfer/second
   Controller to Micro Channel                     13.3 MBytes
   Controller to SCSI devices                      5.0 MBytes
  Interleave Factor                                1:1
 Internal Rewritable Optical Disk Drives           Optional
  Maximum Internal Drives Supported                1 (5k)
 Internal Optical CD-ROM Drives                    Optional
  Maximum Internal Drives Supported                1 (5k)

 TAPE STORAGE
 Internal Tape Drive Support
  3.5" Internal Tape Backup Unit                   Yes (5r)
  5.25" QIC SCSI Tape Drive                        No
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        No
 External Tape Drive Support                       Yes
  5.25" 6157 Streaming Tape                        Models 001/002 (c)
  5.25" QIC SCSI Tape Drive                        Yes
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        Yes


ΓòÉΓòÉΓòÉ 10.19.2.4. PS/2 Model 90-0K9/0KD/0KF: Expansion/Operating System ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the 90-0K9/0KD/0KF header.

 DESCRIPTION                                       8590-0K9/0KD/0KF
 EXPANSION
 Total Adapter Slots                               4
  # of Long/Short Slots                            4/0
  # of 8/16/32-bit Slots                           0/0/4 (3a)
  # of Slots with Video Extension                  1
  Non-RAM use of 32-bit Slots                      Yes
 Available Slots                                   3 (5l)
  Maximum RAM with Available Slots                 64MB (8q)

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        3.3 or later
 IBM OS/2                                          1.30.1 or later
 IBM AIX PS/2                                      1.2.1 (with PTF U401439,
                                                   service level 1009)


ΓòÉΓòÉΓòÉ 10.19.2.5. PS/2 Model 90-0K9/0KD/0KF: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the 90-0K9/0KD/0KF header.

 DESCRIPTION                                       8590-0K9/0KD/0KF
 KEYBOARD
 101-Key Enhanced Keyboard                         Yes
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         6.0

 SECURITY
 C2 Security Enabled                               No
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Keyboard Password                                 Yes
 Power-on Password                                 Yes
  Network Server Mode                              Yes


ΓòÉΓòÉΓòÉ 10.19.2.6. PS/2 Model 90-0K9/0KD/0KF: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc

 Return to the 90-0K9/0KD/0KF header.

 DESCRIPTION                                       8590-0K9/0KD/0KF
 PHYSICAL FACTORS
  Footprint Type                                   Desktop
 Dimensions: Height                                5.5"
       Width                                       17.3"
       Depth                                       16.9"
 Weight (lbs)                                      25.0
 Max Monitor Weight Supported by Cabinet (lbs)     40 (4z)

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              194
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-137 VAC                          4.8
        180-264 VAC                                2.4
 Maximum Current Leakage (uA)                      <500
 Operating Range: Temperature                      50-95┬░ F
          Rel. Humidity                            8-80%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  662
 Noise Level Classification                        ???
  Noise (Avg dB, Operating, 1m)                    ???

 MISCELLANEOUS
 FCC Classification                                B
 UL Approval                                       UL 478, 5th Edition
 CSA Approval                                      CS220
 Warranty Period                                   1 Year
 BIOS Model/Submodel/Revision                      F8/13/00
 Announcement Letter Numbers                       NDD90-445, 191-??? (0KD)
                                                   NDD91-486, 191-??? (0K9/0KF)
 Date Announced                                    10/30/90 (0KD)
                                                   10/17/91 (0K9/0KF)
 Date Withdrawn                                    01/17/92 (0KD)
                                                   07/28/92 (0K9/0KF)


ΓòÉΓòÉΓòÉ 10.20. PS/2 Model 90 486DX2 Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
486DX2-based (clock-doubling) Model 90 systems.

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 50/25MHz Systems
 PS/2 Model 90-0L9/0LF (8590)

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 10.20.1. PS/2 Model 90-0L9/0LF Tech Specs ΓòÉΓòÉΓòÉ

The PS/2 Models 90-0L9 and 90-0LF are identical except for the hard disk drive
used.  Therefore both models will be covered by this one document. Differences
will be indicated by model number in parentheses.

Note:  These models have been withdrawn from marketing.

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Jump directly to the PS/2 Model 90 486DX2 Systems header.


ΓòÉΓòÉΓòÉ 10.20.1.1. PS/2 Model 90-0L9/0LF: Architecture/Memory ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

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 DESCRIPTION                                       8590-0L9/0LF
 ARCHITECTURE
 Bus Type                                          Micro Channel (5t)
 Microprocessor                                    486DX2 (5t)
 Clock-Doubling                                    Yes
 Clock Speed                                       50/25 MHz
 Instruction Set                                   32 Bit
 Addressing                                        32 Bit
 I/O Channel Width                                 32 Bit
 Memory Channel Width                              64 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
  DMA Burst Mode Supported                         Yes
 24/32-bit DMA Controller                          24
 Bus Masters Supported                             15
 486 Burst Mode Enabled                            Yes
 Upgradeable Processor Complex                     Yes (5t)
  Processor Upgrades Available                     50/25MHz 486DX2
                                                   66/33MHz 486DX2
                                                   50MHz 486DX
                                                   60MHz Pentium
 Matched Memory Cycle                              N/A (5i)
 Page Memory Logic                                 Yes
 256K Level 2 Processor Cache                      Not Supported

 MEMORY
 Standard (Motherboard)                            8MB
 Maximum (Motherboard)                             64MB (5j)
 Maximum (System)                                  64MB (2r)
 Total # of Motherboard SIMM Sockets               8
 # of Motherboard SIMM Sockets Available           ?
 Memory Chip Speed (ns)                            70 (9r)(5o)
 Memory Type                                       DRAM
  Memory Interleaving                              Yes
 Memory Cache Controller                           Yes
  Internal/External Cache                          Internal
  Standard Memory Cache Size                       8K
  Optional External Memory Cache                   No
 Wait States: Motherboard                          0
        Adapter                                    N/A (8q)
 Memory Chips Used: System Bd                      2/4/8MB SIMMs


ΓòÉΓòÉΓòÉ 10.20.1.2. PS/2 Model 90-0L9/0LF: Standard Features ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

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 DESCRIPTION                                       8590-0L9/0LF
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 BIOS Extensions Stored on Disk                    Yes (5v)
 Setup & Diags Stored on Disk                      Yes (5v)
 Optional Math Coprocessor                         Built-in
  Coprocessor Speed                                50 MHz
 Standard Graphics                                 XGA
  8/16/32-bit Controller                           32
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     512K
 Maximum Graphics                                  XGA-2 (c)
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Adapter
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
  Resolutions Supported                            640x480 64K Colors
                                                   800x600 64K Colors
                                                   1024x768 256 Colors
                                                   1280x1024 16 Colors
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 RS232C Serial Ports                               2
  UART Chip Used                                   ???
  Maximum Speed (bits/second)                      345,600
   FIFO Mode Enabled                               Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 SCSI port                                         Yes (5c)
  Internal/External Connectors                     Yes/Yes
  On Motherboard/Adapter                           Motherboard


ΓòÉΓòÉΓòÉ 10.20.1.3. PS/2 Model 90-0L9/0LF: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 90-0L9/0LF header.

 DESCRIPTION                                       8590-0L9/0LF
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     4
  # of 3.5"/5.25" Bays                             3/1
  # of 3.5"/5.25" Bays Available                   1/1
 Selectable Boot                                   Yes
  Bootable Physical Drives                         All
 Diskette Drives Standard                          1x2.88MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)(7t)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (j)(7t)
   Media Sensing                                   No
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      Optional (i)
   Media Sensing                                   Yes
  3.5" 2.88MB                                      Optional (i)
   Media Sensing                                   Yes
  Internal Drives Supported                        3 (5r)
  External Drives Supported                        1 (4n)
  Maximum # Diskette Drives                        4 (4n)(5r)
 Hard Disk Drives Standard                         1x160MB (0L9)
                                                   1x400MB (0LF)
  Drive Type                                       SCSI
  Encoding Method                                  RLL
  Drive Form Factor                                3.5"
  Average Seek Time (ms)                           16 (160MB)
                                                   11.5 (400MB)
  Average Latency (ms)                             8.3 (160MB)
                                                   6.95 (400MB)
  Sector Buffer Size                               32K (160MB)
                                                   128K (400MB)
  Hard Disk Data Transfer/second                   1.5 MBytes (160MB)
                                                   2.0 MBytes (400MB)
  Average Latency (ms)                             8.3 (160MB)
                                                   6.95 (400MB)
  Rotational Speed (RPMs)                          3600 (160MB)
                                                   4316 (400MB)
  # of Heads                                       8 (160MB)
                                                   14 (400MB)
  # of Platters                                    4 (160MB)
                                                   8 (400MB)
  Sectors per Track                                39 (160MB)
                                                   48 (400MB)
  Cylinders                                        1021 (160MB)
                                                   1199 (400MB)
  Shock Rating (Gs): Operating                     10
            Non-operating                          50 (160MB)
                                                   35 (400MB)
  MTBF (Hours)                                     110,000 (160MB)
                                                   150,000 (400MB)
  Auto Park                                        Yes
  Maximum # of Internal HD Drives                  3
  Optional HD Sizes Available:                     170MB (13ms)
                                                   340MB (13ms)
                                                   540MB (8.7ms)
                                                   1GB (8.6ms)
                                                   2GB (9.5ms)
  Maximum Internal HD Capacity                     6GB (3z)(4o)(5k)
 Standard Hard Disk Controller Type                SCSI
  Bus Master                                       Yes
   16-bit Adapter                                  Optional
   32-bit Adapter with Cache                       Standard
  # of Devices Supported/Adapter                   7/15 (3r)
  # of Adapters Supported/System                   4
  Controller Data Transfer/second
   Controller to Micro Channel                     16.6 MBytes
   Controller to SCSI devices                      5.0 MBytes
  Interleave Factor                                1:1
 Internal Rewritable Optical Disk Drives           Optional
  Maximum Internal Drives Supported                1 (5k)
 Internal Optical CD-ROM Drives                    Optional
  Maximum Internal Drives Supported                1 (5k)

 TAPE STORAGE
 Internal Tape Drive Support
  3.5" Internal Tape Backup Unit                   Yes (9b)
  5.25" QIC SCSI Tape Drive                        No
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        No
 External Tape Drive Support                       Yes
  5.25" 6157 Streaming Tape                        Models 001/002 (c)
  5.25" QIC SCSI Tape Drive                        Yes
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        Yes


ΓòÉΓòÉΓòÉ 10.20.1.4. PS/2 Model 90-0L9/0LF: Expansion/Operating System ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 90-0L9/0LF header.

 DESCRIPTION                                       8590-0L9/0LF
 EXPANSION
 Total Adapter Slots                               4
  # of Long/Short Slots                            4/0
  # of 8/16/32-bit Slots                           0/0/4 (3a)
  # of Slots with Video Extension                  1
  Non-RAM use of 32-bit Slots                      Yes
 Available Slots                                   3 (5l)
  Maximum RAM with Available Slots                 64MB (8q)

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        5.0 or later
 IBM OS/2                                          1.30.2 or later
 IBM AIX PS/2                                      1.2.1 (with PTF P211300) or
                                                   later


ΓòÉΓòÉΓòÉ 10.20.1.5. PS/2 Model 90-0L9/0LF: Keyboard/Security ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 90-0L9/0LF header.

 DESCRIPTION                                       8590-0L9/0LF
 KEYBOARD
 122-Key Host-Connected Keyboard (6w)              Yes (8p)
 106-Key Japanese Keyboard                         No
 101-Key Enhanced Keyboard                         Yes (8p)
 84-Key Space-Saving Keyboard                      Yes (8p)
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         6.0

 SECURITY
 C2 Security Enabled                               No
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Keyboard Password                                 Yes
 Power-on Password                                 Yes
  Network Server Mode                              Yes


ΓòÉΓòÉΓòÉ 10.20.1.6. PS/2 Model 90-0L9/0LF: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 90-0L9/0LF header.

 DESCRIPTION                                       8590-0L9/0LF
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
 Dimensions: Height                                5.5"
       Width                                       17.3"
       Depth                                       16.9"
 Weight (lbs)                                      25.0
 Max Monitor Weight Supported by Cabinet (lbs)     40 (4z)

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              194
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-137 VAC                          4.8
        180-264 VAC                                2.4
 Maximum Current Leakage (uA)                      <500
 Operating Range: Temperature                      50-95┬░ F
          Rel. Humidity                            8-80%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  662
 Noise Level Classification                        ???
  Noise (Avg dB, Operating, 1m)                    51

 MISCELLANEOUS
 FCC Classification                                B
 UL Approval                                       UL 478, 5th Edition
 CSA Approval                                      CS220
 Warranty Period                                   1 Year
 BIOS Model/Submodel/Revision                      F8/3F/03
 Announcement Letter Numbers                       NDD92-241
 Date Announced                                    04/28/92
 Date Withdrawn                                    06/23/93


ΓòÉΓòÉΓòÉ 10.20.1.7. PS/2 Model 90-0L9/0LF: Limitations ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 90-0LF  header.

 The following options and adapters are Not supported by this system.

     1MB Memory Module Kit--85ns (6450603)
     1.44MB Diskette Drive (6451026/#1026; replaced by 6451072/#1072)
     2MB Memory Module Kit--85ns (6450604)
     256K Level 2 Cache Option
     2-6MB Memory Expansion Option (6450367)
     2-14MB Memory Expansion Option (34F3077)
     2.88MB Slim High Diskette Drive (6451106/#1106)
     3117 Scanner
     3117 Scanner Adapter
     3118 Scanner
     320MB SCSI Hard Disk Drive (6451055/#1055; replaced by 6451234/#1108)
     4-14MB Memory Expansion Option (34F3011)
     5.25" 360K External Diskette Drive (4869-001)
     5.25" 360K External Diskette Drive Adapter/A (6450245/#8760)
     5.25" 1.2MB External Diskette Drive (4869-002)
     5.25" 1.2MB External Diskette Drive Adapter/A (6451007/#1007)
     5.25" 1.2MB Internal Diskette Drive (6451006; replaced by 6451066)
     8514/A Adapter
     8MB Memory Module Kit--85ns (6450605)
     CD-ROM Drive (6450845/#0845; replaced by 6451113/#1113)
     High-Speed Scanner Adapter/A


ΓòÉΓòÉΓòÉ 11. PS/2 95xx ISA Systems: Features and Technical Specs ΓòÉΓòÉΓòÉ

The PS/2 95xx ISA Systems: Features and Technical Specifications lists the
standard and optional features, as well as technical product specifications, of
all Industry Standard Architecture-based PS/2 systems using the 95xx
designation (e.g., 9533).  This reference may also be useful for comparing PS/2
features to that of OEM systems.

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 Industry Standard Architecture PS/2s (95xx)
 PS/2 E 486SLC2 Systems

 Jump directly to the PS/2 Technical Information header.


ΓòÉΓòÉΓòÉ 11.1. PS/2 E 486SLC2 Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
486SLC2-based PS/2 E systems.

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 50/25MHz Systems
 PS/2 E 9533-DB7/GB7/GBX/1BX/2BX

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 11.1.1. PS/2 E Models 9533-DB7/GB7/GBX/1BX/2BX Tech Specs ΓòÉΓòÉΓòÉ

The PS/2 E Models DB7/GB7/GBX/1BX/2BX are identical except for the presence or
absence or a diskette drive or hard disk drive, the amount of standard memory,
and the presence or absence and type of communications adapter included.
Therefore both models will be covered by this one document.  Differences will
be indicated by model number in parentheses.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Jump directly to the PS/2 E 486SLC2 Systems header.


ΓòÉΓòÉΓòÉ 11.1.1.1. PS/2 E Models 9533-DB7/GB7/GBX/1BX/2BX: Architecture/Memory ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 E 9533-DB7/GB7/GBX/1BX/2BX header.

 DESCRIPTION                                       9533-DB7/GB7/GBX/1BX/2BX
 ARCHITECTURE
 Bus Type                                          ISA (PCMCIA)
 Microprocessor                                    IBM 486SLC2
 Clock-Doubling                                    Yes
 Clock Speed (MHz)                                 50/25
 Internal/External Cache                           Internal
  Cache Size                                       16KB
 Instruction Set                                   32 bit
 Addressing                                        24 bit
 I/O Channel Width                                 16 bit
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      7 (4m)
  DMA Burst Mode Supported                         No
  24/32-bit DMA Controller                         24
 Upgradeable Processor                             No
 Bus Masters Supported                             No
 Matched Memory Cycle                              No
 Page Memory Logic                                 No (7a)

 MEMORY
 Standard (Motherboard)                            4MB (GBX/1BX/2BX)
                                                   8MB (GB7/DB7)
 Maximum (Motherboard)                             16MB
 Maximum (System)                                  16MB (2r)
 Total # of Motherboard SIMM Sockets               2
 # of Motherboard SIMM Sockets Available           2 (GBX/1BX/2BX)
                                                   1 (GB7/DB7)
 Standard Memory Speed (ns)                        70
 Memory Type                                       DRAM
  Memory Interleaving                              No
 Memory Used: Motherboard                          2/4/8MB 72-pin Gold-Plated
                                                   SIMMs (70ns)
 Wait States: Motherboard                          ??


ΓòÉΓòÉΓòÉ 11.1.1.2. PS/2 E Models 9533-DB7/GB7/GBX/1BX/2BX: Standard Features ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 E 9533-DB7/GB7/GBX/1BX/2BX header.

 DESCRIPTION                                       9533-DB7/GB7/GBX/1BX/2BX
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 BIOS Extensions Stored on Disk                    Yes
 OPTIONAL MATH COPROCESSOR                         No
 STANDARD GRAPHICS                                 XGA-2
  8/16/32-bit Controller                           16
  On Motherboard/Adapter                           Motherboard
  132-Column Text Mode                             Yes
  Bus Master                                       N/A
  Video Memory (DRAM): Standard                    1MB
             Maximum                               1MB
  Video Chipset                                    XGA-2
  Resolutions Supported                            640x480 64K Colors
                                                   800x600 64K Colors
                                                   1024x768 256 Colors
                                                   1280x1024 16 Colors
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
  Display Power Management Support                 Yes (7l)
 MAXIMUM GRAPHICS                                  XGA-2
 ISA ETHERNET ADAPTER                              Yes (1BX)
  RIPL Feature                                     Yes
 ISA TOKEN-RING ADAPTER                            Yes (2BX)
  RIPL Feature                                     Yes
 SERIAL PORTS                                      1
  9/25-Pin                                         9-pin
  UART Chip Used                                   16450 Compatible (RS232D)
  Maximum Speed (bits/second)                      19,200
  FIFO Mode Enabled                                No
  Supports DMA Data Transfer                       ???
  Maximum Ports Supported                          1 (6i)
 PARALLEL PRINTER PORTS                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          1 (6i)
 POINTING DEVICE PORT                              Yes
  IBM Mouse Included                               No
 CMOS CLOCK                                        Yes
 BATTERY LIFE (YEARS)                              5
  Replaceable                                      Yes


ΓòÉΓòÉΓòÉ 11.1.1.3. PS/2 E Models 9533-DB7/GB7/GBX/1BX/2BX: Disk/Tape Storage ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 E 9533-DB7/GB7/GBX/1BX/2BX header.

 DESCRIPTION                                       9533-DB7/GB7/GBX/1BX/2BX
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     1
  # of 3.5"/5.25" Bays                             1/0
  # of 3.5"/5.25" Bays Available                   0/0
  # of PCMCIA Sockets                              4
  # of PCMCIA Sockets Front/Back                   2/2
 Selectable Boot                                   ??
  Bootable Physical Drives                         ??
 Diskette Drives Standard                          0 (GBX/1BX/2BX)
                                                   1 x 1.44MB (GB7/DB7)
 Optional Diskette Drives
  3.5" Enhanced 2.88MB                             No
  Internal Drives Supported                        1
  External Drives Supported                        0
  Maximum # Diskette Drives                        1
 Hard Disk Drives Standard                         0 (GBX/1BX/2BX)
                                                   1 x 120MB (GB7/DB7)
  Standard Interface                               IDE
  Drive Form Factor                                2.5"
  Average Access Rate (ms)                         17ms
  Sector Buffer Size                               ??
  Data Transfer Rate (/Second)                     ??
  Average Latency (ms)                             8.3
  Rotational Speed (RPMs)                          ??
  # of Heads                                       ??
  # of Platters                                    ??
  Sectors per Track                                ??
  Cylinders                                        ??
  Shock Rating (Gs): Operating                     ??
            Non-operating                          ??
  MTBF (Hours)                                     ??
  Auto Park                                        ??
  Maximum # of Internal HD Drives                  ??
  Interleave Factor                                1:1
 Internal Optical CD-ROM Drives                    No
  Maximum Internal Drives Supported                1
 External PCMCIA CD-ROM Drives                     Yes

 TAPE STORAGE
 Internal Tape Drive Support                       No
  3.5" Tape Drives                                 No
  5.25" Tape Drives                                No
 External Tape Drive Support                       Yes
  SCSI Tape Drives                                 Yes (with optional PCMCIA
                                                   SCSI adapter)
  Parallel Port Tape Drives                        Yes


ΓòÉΓòÉΓòÉ 11.1.1.4. PS/2 E Models 9533-DB7/GB7/GBX/1BX/2BX: Expansion/Operating Systems ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 E 9533-DB7/GB7/GBX/1BX/2BX header.

 DESCRIPTION                                       9533-DB7/GB7/GBX/1BX/2BX
 EXPANSION
 Total ISA Adapter Slots                           0
  # of Long/Short Slots                            0
  # of 8/16/32-bit Slots                           0
  # of Slots with Video Extension                  0
 Available ISA Slots                               0
 Number of PCMCIA Type I/II/III Slots              0/0/2 (4f)
  Number of PCMCIA Slots Available                 2 (4f)
  PCMCIA Slots Hot-Swappable                       Yes
  PCMCIA Slots Bootable                            Yes
  PCMCIA Specification Supported                   V2.01
  PCMCIA Socket Services Specification             V2.0

 OPERATING SYSTEM SUPPORT
 IBM DOS                                           5.02, or later
 IBM OS/2                                          2.1, or later


ΓòÉΓòÉΓòÉ 11.1.1.5. PS/2 E Models 9533-DB7/GB7/GBX/1BX/2BX: Keyboard/Security ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 E 9533-DB7/GB7/GBX/1BX/2BX header.

 DESCRIPTION                                       9533-DB7/GB7/GBX/1BX/2BX
 KEYBOARD
 101-Key Quiet Keyboard                            Optional
 Quiet Touch Keyboard with TrackPoint II           Included
 Fast Keyboard Speed Setting                       ??
 Keyboard Cord Length (ft)                         6.56 (2 meters)

 SECURITY
 Cable/Bolt Down Capability                        Yes
 PCMCIA Electronic Lock/Unlock Utility             Yes
 Keyboard Password                                 Yes
 Lockable Cable Cover With Key Lock                Yes
 Power on Password                                 Yes
 Privileged Access Password                        Yes
 Secure IPL Source                                 Yes
 Vital Product Data (VPD) Enabled                  Yes (5m)


ΓòÉΓòÉΓòÉ 11.1.1.6. PS/2 E Models 9533-DB7/GB7/GBX/1BX/2BX: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 E 9533-DB7/GB7/GBX/1BX/2BX header.

 DESCRIPTION                                       9533-DB7/GB7/GBX/1BX/2BX
 PHYSICAL FACTORS
 Footprint Type                                    Space Saving
  Orientation                                      Vertical, Horizontal,
                                                   Desk-Mounted, or
                                                   Wall-Mounted
  Vertical-Mount Floor Stand                       Optional
 Dimensions: Height                                2.75"
        Width                                      12.0"
        Depth                                      12.0"
 Weight (lbs):                                     9.5

 ENVIRONMENTAL FACTORS
 Electrical Power Specifications:
  Power Supply (Watts)                             24
   World-wide (110/60,220/50)                      Yes
   Auto-Sensing/Switching                          Yes
  Amperage at:  90-137 VAC                         0.7
         180-265 VAC                               0.35
  Electrical Power (KVA)
   As Shipped                                      0.029
   Maximum                                         0.048
  VESA Power-Saving Modes
   Meets Energy Star Req's (<30W)                  Yes (23W typical)
   Meets NUTEK Req's (<8W)                         No (16W in VESA Idle state)
 Maximum Current Leakage (uA)                      ???
 Operating Environment:
  Operating Range: Temperature                     50-95┬░ F
           Rel. Humidity                           8-80%
  Maximum Operating Altitude (ft)                  7000
  Heat (BTUs/Hour)                                 51
  Noise (Avg dB, Operating, 1m)                    3.8 bels
    Classification                                 B

 MISCELLANEOUS
 Software Preloaded
  DOS/Windows Operating System                     5.02/3.1
  OS/2 Operating System                            2.1
 Agency Approvals
   EPA Energy Star                                 Yes
   FCC Class-B Part 15  (USA)                      Yes
   UL-1950 1st Ed.    (USA)                        Yes
   CSA C22.2 No. 950 (Canada)                      Yes
   IEC-IEC950  (for APG)                           Yes
 Warranty Period                                   3 Years
  On-site/Carry-in                                 On-site
  Int'l Traveler's Warranty Service                No
  Countries Warranty Valid In                      N/A
 Date Announced                                    29Jul93
 Date Withdrawn                                    ???????


ΓòÉΓòÉΓòÉ 11.1.1.7. PS/2 E Models 9533-DB7/GB7/GBX/1BX/2BX: Limitations ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 E 9533-DB7/GB7/GBX/1BX/2BX header.

     With 24 bit addressing the maximum memory address space is 16 Megabytes
      (GB).  Of the 16MB of maximum system memory, the system requires 512K for
      its use.  This leaves a maximum of 15.5MB of memory address space for
      use.


ΓòÉΓòÉΓòÉ 12. PS/2 95xx MCA Systems: Features and Technical Specs ΓòÉΓòÉΓòÉ

The PS/2 95xx MCA Systems: Features and Technical Specifications lists the
standard and optional features, as well as technical product specifications, of
all Micro Channel Architecture-based PS/2 systems using the 95xx designation
(e.g., 9576).  This reference may also be useful for comparing PS/2 features to
that of OEM systems.  There are nearly 100 systems described in this area.

Choose the section to which you wish to jump, below:

 Micro Channel Desktop PS/2s (95xx)
 PS/2 Model 53 486SLC2 Systems                     PS/2 Model 77 486SX Systems
 PS/2 Model 56 486SLC2 Systems                     PS/2 Model 77 486DX2 Systems
 PS/2 Model 56 486SLC3 Systems                     PS/2 Model 77i 486SX Systems
 PS/2 Model 57 486SLC2 Systems                     PS/2 Model 77i 486DX2
                                                   Systems
 PS/2 Model 57 486SLC3 Systems                     PS/2 Model 77i 486DX4
                                                   Systems
 PS/2 Model M57 486SLC2 Systems                    PS/2 Model 77s 486SX Systems
 PS/2 Model M57 486SLC3 Systems                    PS/2 Model 77s 486DX2
                                                   Systems
 PS/2 Model 76 486SX Systems                       PS/2 Model 77s 486DX4
                                                   Systems
 PS/2 Model 76i 486SX Systems                      PS/2 Model M77 486SX Systems
 PS/2 Model 76i 486DX2 Systems                     PS/2 Model M77 486DX2
                                                   Systems
 PS/2 Model 76i 486DX4 Systems                     PS/2 Model 90 486DX2 Systems
 PS/2 Model 76s 486SX Systems
 PS/2 Model 76s 486DX2 Systems
 PS/2 Model 76s 486DX4 Systems

 Jump directly to the PS/2 Technical Information header.


ΓòÉΓòÉΓòÉ 12.1. PS/2 Model 53 486SLC2 Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
IBM 486SLC2-based Model 53 systems.

Choose the section to which you wish to jump, below:

 50/25MHz Systems
 PS/2 Model 53-0B7/0BB
 PS/2 Model 53(LS)-1BX/2BX

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 12.1.1. PS/2 Model 53-0B7/0BB Tech Specs ΓòÉΓòÉΓòÉ

The PS/2 Models 53-0B7 and -0BB are identical except for the hard disk drive
used.  Therefore both models will be covered by this one document. Differences
will be indicated by model number in parentheses.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Jump directly to the PS/2 Model 53 486SLC2 Systems header.


ΓòÉΓòÉΓòÉ 12.1.1.1. PS/2 Model 53-0B7/0BB: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 53-0B7/0BB header.

 DESCRIPTION                                       9553-0B7/0BB
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    IBM 486SLC2 (2g)
 Clock-Doubling                                    Yes
 Clock Speed (MHz)                                 50/25
 Internal/External Cache                           Internal (4u)
  Cache Size                                       16K
 Instruction Set                                   32 bit
 Addressing                                        24 Bit
 I/O Channel Width                                 16 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
  DMA Burst Mode Supported                         ???
  24/32-bit DMA Controller                         24
 Upgradeable Processor/Complex                     No
 Bus Masters Supported                             15

 MEMORY
 Standard (Motherboard)                            4MB (7b)
 Maximum (Motherboard)                             16MB
 Maximum (System)                                  16MB (2r)
 Total # of Motherboard SIMM Sockets               3
 # of Motherboard SIMM Sockets Available           2
 Standard Memory Speed (ns)                        70
 Memory Type                                       DRAM
 Interleaved Memory                                Yes
 Matched Memory Cycle                              No (5i)
 Page Memory Logic                                 No (7a)
 Wait States: Motherboard                          0
        Adapter                                    N/A (8q)
 Memory Used: Motherboard                          2/4/8MB SIMMs (70ns)


ΓòÉΓòÉΓòÉ 12.1.1.2. PS/2 Model 53-0B7/0BB: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 53-0B7/0BB header.

 DESCRIPTION                                       9553-0B7/0BB
 STANDARD FEATURES
 ROM Size                                          256K
 ROM Shadowing                                     Yes
 SurePath BIOS                                     Yes (7p)
 BIOS Extensions Stored on Disk                    ??? (5v)
 Setup & Diags Stored on Disk                      Yes (5v)
 Optional Math Coprocessor                         ???
  Coprocessor Speed                                ???
 Standard Graphics                                 SVGA
  Local Bus Video                                  ???
  8/16/32-bit Controller                           ???
  On Motherboard/Adapter                           Motherboard
  132-Column Text Mode                             ???
  Bus Master                                       ???
  Video Memory (DRAM) Standard                     1MB
  Resolutions Supported                            640x480x16M-Colors
                                                   800x600x64K-Colors
                                                   1024x768x256-Colors
                                                   1280x1024x16-Colors
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Only at 640x480 or 800x600
                                                   resolution
 Display Power Management Support                  Yes (7l)
 Maximum Graphics                                  SVGA
 RS232C Serial Ports                               1
  9/25-Pin                                         25-pin
  UART Chip Used                                   ???
  Maximum Speed (bits/second)                      ???
  FIFO Mode Enabled                                ???
  Supports DMA Data Transfer                       ???
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
  IBM Mouse Included                               (m)
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              ???
  Replaceable                                      Yes
 SCSI port                                         No


ΓòÉΓòÉΓòÉ 12.1.1.3. PS/2 Model 53-0B7/0BB: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 53-0B7/0BB header.

 DESCRIPTION                                       9553-0B7/0BB
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     3
  # of 3.5"/5.25" Bays                             3/0
  # of 3.5"/5.25" Bays Available                   1/0
 Selectable Boot                                   ???
  Bootable Physical Drives                         ???
 Diskette Drives Standard                          1x1.44MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)(7t)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (j)(7t)
   Media Sensing                                   No
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      Optional
   Media Sensing                                   Yes
  3.5" 2.88MB                                      Optional (i)
   Media Sensing                                   Yes
  3.5" Enhanced 2.88MB                             Optional (i)
   Media Sensing                                   Yes
  Internal Drives Supported                        2
  External Drives Supported                        1
  Maximum # Diskette Drives                        3
 Hard Disk Drives Standard                         1x120MB (0B7)
                                                   1x250MB (0BB)
  Drive Type                                       IDE
  Encoding Method                                  RLL
  Drive Form Factor                                3.5"
  Average Access Rate (ms)                         14
  Sector Buffer Size                               32K
  Data Transfer Rate (/Second)                     8.3 MBits
  Average Latency (ms)                             8.3
  Rotational Speed (RPMs)                          4320
  # of Heads                                       2 (120MB)
                                                   4 (250MB)
  # of Platters                                    1 (120MB)
                                                   2 (250MB)
  Sectors per Track                                44
  Cylinders                                        2009
  Shock Rating (Gs): Operating                     ??
            Non-operating                          ??
  MTBF (Hours)                                     ???,???
  Auto Park                                        Yes
  Maximum # of Internal HD Drives                  2
  Optional HD Sizes Available:                     170MB (13ms)
                                                   245MB (15ms)
                                                   340MB (14ms)
                                                   527MB (12ms)
  Maximum Internal HD Capacity                     1.05GB (3z)(4o)(5k)
 Standard Hard Disk Controller Type                IDE
  Interleave Factor                                1:1
 Internal Rewritable Optical Disk Drives           Optional
  Maximum Internal Drives Supported                1 (5k)
 Internal Optical CD-ROM Drives                    Optional
  Maximum Internal Drives Supported                1 (5k)

 EXTERNAL EXPANSION UNIT SUPPORT
 IBM 3510 (1-Bay)                                  Yes (4l)
 IBM 3511 (7-Bays)                                 Yes (4l)
 IBM 3514 (8-Bays, RAID-5, SCSI-2)                 Yes (4l)
 IBM 3515 (4-Bays, Streaming Data,
  RAID-0/RAID-1)                                   No

 TAPE STORAGE
 Internal Tape Drive Support
  3.5" Internal Tape Backup Unit                   ???
  5.25" QIC SCSI Tape Drive                        No
  5.25" 4mm SCSI Tape Drive                        No
  5.25" 8mm SCSI Tape Drive                        No
 External Tape Drive Support
  5.25" QIC SCSI Tape Drive                        Yes (4l)
  5.25" 4mm SCSI Tape Drive                        Yes (4l)
  5.25" 8mm SCSI Tape Drive                        Yes (4l)


ΓòÉΓòÉΓòÉ 12.1.1.4. PS/2 Model 53-0B7/0BB: Expansion/Operating System ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 53-0B7/0BB header.

 DESCRIPTION                                       9553-0B7/0BB
 EXPANSION
 Adapter Slots (Total/Avail)                       3/3
  Number of Long/Short                             3/0
  Number of 8/16/32-bit Slots                      0/3/0 (3a)
  Number of Slots with Video Extension             1
  Maximum RAM with Available Slots                 16MB (8q)

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        5.00 or later
 IBM OS/2                                          OS/2 1.30.1 or later


ΓòÉΓòÉΓòÉ 12.1.1.5. PS/2 Model 53-0B7/0BB: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 53-0B7/0BB header.

 DESCRIPTION                                       9553-0B7/0BB
 KEYBOARD
 Select-a-Keyboard                                 Yes (m)
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         10 (3 meters)

 SECURITY
 Vital Product Data (VPD) Enabled                  Yes (5m)
 C2 Security Enabled                               Yes (7j)
 LogicLock Security                                Yes (7j)
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Cable-Down Capability                             Yes
 Lockable Cable Cover                              Optional


ΓòÉΓòÉΓòÉ 12.1.1.6. PS/2 Model 53-0B7/0BB: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 53-0B7/0BB header.

 DESCRIPTION                                       9553-0B7/0BB
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
  Orientation                                      Horizontal only
 Vertical-Mount Floor Stand                        N/A
 Dimensions: Height                                4.07"
       Width                                       15.1"
       Depth                                       16.0"
 Weight (lbs):                                     23.0

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              90
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Manual switch
 Amperage at:  90-137 VAC                          3.5
        180-265 VAC                                1.75
 Operating Range: Temperature                      50-95┬░ F
           Rel. Humidity                           8-80%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  156
 Noise (Avg dB, Operating, 1m)                     50
    Classification                                 3D
 Power Management Support                          Yes
  System/Monitor                                   Monitor (7l)

 MISCELLANEOUS
 Software Included                                 None (Systems shipped before
                                                   23Feb94)
                                                   Choice of DOS 5.02/Win 3.1,
                                                   DOS 6.1/Win 3.1, or OS/2 2.1
                                                   (Systems shipped after
                                                   23Feb94)
 FCC Classification                                B
 UL Approval                                       UL 1950, 1st Edition
 CSA Approval                                      CSA22.2 No. 220-M1986
 Warranty Period                                   3 Years
  On-site/Carry-in                                 On-site
  Int'l Traveler's Warranty Service                No
  Countries Warranty Valid In                      USA/Canada
 BIOS Model/Submodel/Revision                      F8/38/00
 Date Announced                                    09Nov93
 Date Withdrawn                                    04/14/95


ΓòÉΓòÉΓòÉ 12.1.1.7. PS/2 Model 53-0B7/0BB: Limitations ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 53-0B7/0BB header.

 The following adapters and options are Not supported by this system.

     All SIMMs except 2MB/4MB/8MB 70ns
     M-Motion Video Adapter/A, P/N 95F1091; F/C 1991
     PS/2 Internal Tape Backup Unit, P/N 30F5279; F/C 5279
     PS/2 MMC Adapter, P/N 95F1436; F/C 1436


ΓòÉΓòÉΓòÉ 12.1.2. PS/2 Model 53(LS)-1BX/2BX Tech Specs ΓòÉΓòÉΓòÉ

Because the Model 53 LS (LAN Station) models are identical, except for a choice
of Token-Ring (9553-2BX) or Ethernet (9553-1BX) network adapter, both models
will be covered by this one document.  Differences will be indicated by model
number in parentheses.

What differentiates the LS models from the other Model 53 486SLC2 models is the
presence of a network adapter in one of the adapter slots (which reduces the
number of available slots), and the lack of any diskette or hard disk drives
(which may be added later) in the system.

Note:  These models have been withdrawn from marketing.

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Jump directly to the PS/2 Model 53 486SLC2 Systems header.


ΓòÉΓòÉΓòÉ 12.1.2.1. PS/2 Model 53(LS)-1BX/2BX: Architecture/Memory ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

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 DESCRIPTION                                       9553(LS)-1BX/2BX
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    IBM 486SLC2 (2g)
 Clock-Doubling                                    Yes
 Clock Speed (MHz)                                 50/25
 Internal/External Cache                           Internal (4u)
  Cache Size                                       16K
 Instruction Set                                   32 bit
 Addressing                                        24 Bit
 I/O Channel Width                                 16 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
  DMA Burst Mode Supported                         ???
  24/32-bit DMA Controller                         24
 Upgradeable Processor/Complex                     No
 Bus Masters Supported                             15

 MEMORY
 Standard (Motherboard)                            4MB (7b)
 Maximum (Motherboard)                             16MB
 Maximum (System)                                  16MB (2r)
 Total # of Motherboard SIMM Sockets               3
 # of Motherboard SIMM Sockets Available           2
 Standard Memory Speed (ns)                        70
 Memory Type                                       DRAM
 Interleaved Memory                                Yes
 Matched Memory Cycle                              No(5i)
 Page Memory Logic                                 No (7a)
 Wait States: Motherboard                          0
        Adapter                                    N/A (8q)
 Memory Used: Motherboard                          2/4/8MB SIMMs (70ns)


ΓòÉΓòÉΓòÉ 12.1.2.2. PS/2 Model 53(LS)-1BX/2BX: Standard Features ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

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 DESCRIPTION                                       9553(LS)-1BX/2BX
 STANDARD FEATURES
 ROM Size                                          256K
 ROM Shadowing                                     Yes
 SurePath BIOS                                     Yes (7p)
 BIOS Extensions Stored on Disk                    ??? (5v)
 Setup & Diags Stored on Disk                      Yes (5v)
 Optional Math Coprocessor                         ???
  Coprocessor Speed                                ???
 Standard Graphics                                 SVGA
  Local Bus Video                                  ???
  8/16/32-bit Controller                           ???
  On Motherboard/Adapter                           Motherboard
  132-Column Text Mode                             ???
  Bus Master                                       ???
  Video Memory (DRAM) Standard                     1MB
  Resolutions Supported                            640x480x16M-Colors
                                                   800x600x64K-Colors
                                                   1024x768x256-Colors
                                                   1280x1024x16-Colors
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Only at 640x480 or 800x600
                                                   resolution
 Display Power Management Support                  Yes (7l)
 Maximum Graphics                                  SVGA
 RS232C Serial Ports                               1
  9/25-Pin                                         25-pin
  UART Chip Used                                   ???
  Maximum Speed (bits/second)                      ???
  FIFO Mode Enabled                                ???
  Supports DMA Data Transfer                       ???
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
  IBM Mouse Included                               (m)
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 Token-Ring Adapters Included                      1 (6n) (2BX)
  Data Transfer Rate (Mbps)                        16/4
  Remote IPL feature installed                     Yes
 Ethernet Adapters Included                        1 (6n) (1BX)
  Data Transfer Rate (Mbps)                        10
  Wiring Type                                      (v)
  Remote IPL feature installed                     Yes
 CMOS Clock                                        Yes
 Battery Life (years)                              ???
  Replaceable                                      Yes
 SCSI port                                         No


ΓòÉΓòÉΓòÉ 12.1.2.3. PS/2 Model 53(LS)-1BX/2BX: Disk/Tape Storage ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

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 DESCRIPTION                                       9553(LS)-1BX/2BX
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     3
  # of 3.5"/5.25" Bays                             3/0
  # of 3.5"/5.25" Bays Available                   3/0
 Selectable Boot                                   ??? (7n)
  Bootable Physical Drives                         N/A
 Diskette Drives Standard                          None (7n)
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)(7t)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (j)(7i)(7t)
   Media Sensing                                   No
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      Optional(7i)
   Media Sensing                                   Yes
  3.5" 2.88MB                                      Optional (i)(7i)
   Media Sensing                                   Yes
  3.5" Enhanced 2.88MB                             Optional (i)(7i)
   Media Sensing                                   Yes
  Internal Drives Supported                        2 (7i)
  External Drives Supported                        1
  Maximum # Diskette Drives                        3
 Hard Disk Drives Standard                         0
  Maximum # of Internal HD Drives                  2 (7i)
  Optional HD Sizes Available:                     Any IDE
  Maximum Internal HD Capacity                     Any two IDE (3z)(5k)
 Standard Hard Disk Controller Type                IDE
  Interleave Factor                                1:1
 Internal Rewritable Optical Disk Drives           No
 Internal Optical CD-ROM Drives                    No

 EXTERNAL EXPANSION UNIT SUPPORT
 IBM 3510 (1-Bay)                                  Yes (4l)
 IBM 3511 (7-Bays)                                 Yes (4l)
 IBM 3514 (8-Bays, RAID-5, SCSI-2)                 Yes (4l)
 IBM 3515 (4-Bays, Streaming Data,
  RAID-0/RAID-1)                                   No

 TAPE STORAGE
 Internal Tape Drive Support
  3.5" Internal Tape Backup Unit                   ???
  5.25" QIC SCSI Tape Drive                        No
  5.25" 4mm SCSI Tape Drive                        No
  5.25" 8mm SCSI Tape Drive                        No
 External Tape Drive Support
  5.25" QIC SCSI Tape Drive                        Yes (4l)
  5.25" 4mm SCSI Tape Drive                        Yes (4l)
  5.25" 8mm SCSI Tape Drive                        Yes (4l)


ΓòÉΓòÉΓòÉ 12.1.2.4. PS/2 Model 53(LS)-1BX/2BX: Expansion/Operating System ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

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 DESCRIPTION                                       9553(LS)-1BX/2BX
 EXPANSION
 Adapter Slots (Total/Avail)                       3/2
  Number of Long/Short                             3/0
  Number of 8/16/32-bit Slots                      0/3/0 (3a)
  Number of Slots with Video Extension             1
  Maximum RAM with Available Slots                 16MB (8q)

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        5.00 or later
 IBM OS/2                                          OS/2 1.30.1 or later


ΓòÉΓòÉΓòÉ 12.1.2.5. PS/2 Model 53(LS)-1BX/2BX: Keyboard/Security ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

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 DESCRIPTION                                       9553(LS)-1BX/2BX
 KEYBOARD
 Select-a-Keyboard                                 Yes (m)
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         10 (3 meters)

 SECURITY
 Vital Product Data (VPD) Enabled                  Yes (5m)
 C2 Security Enabled                               Yes (7j)
 LogicLock Security                                Yes (7j)
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Cable-Down Capability                             Yes
 Lockable Cable Cover                              Optional


ΓòÉΓòÉΓòÉ 12.1.2.6. PS/2 Model 53(LS)-1BX/2BX: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

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 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

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 DESCRIPTION                                       9553(LS)-1BX/2BX
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
  Orientation                                      Horizontal only
 Vertical-Mount Floor Stand                        N/A
 Dimensions: Height                                4.07"
       Width                                       15.1"
       Depth                                       16.0"
 Weight (lbs):                                     23.0

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              90
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Manual switch
 Amperage at:  90-137 VAC                          3.5
        180-265 VAC                                1.75
 Operating Range: Temperature                      50-95┬░ F
           Rel. Humidity                           8-80%
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  156
 Noise (Avg dB, Operating, 1m)                     50
    Classification                                 3D
 Power Management Support                          Yes
  System/Monitor                                   Monitor (7l)

 MISCELLANEOUS
 Software Included                                 None (7m)
 FCC Classification                                B
 UL Approval                                       UL 1950, 1st Edition
 CSA Approval                                      CSA22.2 No. 220-M1986
 Warranty Period                                   3 Years
  On-site/Carry-in                                 On-site
  Int'l Traveler's Warranty Service                No
  Countries Warranty Valid In                      USA/Canada
 BIOS Model/Submodel/Revision                      F8/38/00
 Date Announced                                    09Nov93
 Date Withdrawn                                    04/14/95


ΓòÉΓòÉΓòÉ 12.1.2.7. PS/2 Model 53(LS)-1BX/2BX: Limitations ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

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 The following adapters and options are Not supported by this system.

     All SIMMs except 2MB/4MB/8MB 70ns
     M-Motion Video Adapter/A, P/N 95F1091; F/C 1991
     PS/2 Internal Tape Backup Unit, P/N 30F5279; F/C 5279
     PS/2 MMC Adapter, P/N 95F1436; F/C 1436


ΓòÉΓòÉΓòÉ 12.2. PS/2 Model 56 486SLC2 Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
IBM 486SLC2-based Model 56 systems.

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 50/25MHz Systems
 PS/2 Model 56-0B6/0BA/DB6/DBA/KB6/KBA/QB6/QBA

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 12.2.1. PS/2 Model 56-0B6/0BA/DB6/DBA/KB6/KBA/QB6/QBA (9556) Tech Specs ΓòÉΓòÉΓòÉ

Note:  These models have been withdrawn from marketing.

The PS/2 Models 56-0B6/0BA/DB6/DBA/KB6/KBA/QB6/QBA are identical except for the
hard disk drive used, and operating system included.  Therefore all models will
be covered by this one document. Differences will be indicated by model number
in parentheses.

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Jump directly to the PS/2 Model 56 486SLC2 Systems header.


ΓòÉΓòÉΓòÉ 12.2.1.1. PS/2 Model 56-0B6/0BA/DB6/DBA/KB6/KBA/QB6/QBA: Architecture/Memory ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 56-0B6/0BA/DB6/DBA/KB6/KBA/QB6/QBA header.

 DESCRIPTION
                                                   9556-0B6/0BA/DB6/DBA/KB6/KBA/QB6/QBA
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    IBM 486SLC2 (2g)
 Clock-Doubling                                    Yes
 Clock Speed (MHz)                                 50/25
 Internal/External Cache                           Internal (4u)
  Cache Size                                       16K
 Instruction Set                                   32 bit
 Addressing                                        24 Bit
 I/O Channel Width                                 16 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
  DMA Burst Mode Supported                         ???
  24/32-bit DMA Controller                         24
 Upgradeable Processor Complex                     Yes
  Processor Upgrades Available                     75/25MHz IBM 486SLC3 (7g)
 Bus Masters Supported                             15
 Interleaved Memory                                Yes
 Matched Memory Cycle                              N/A (5i)
 Page Memory Logic                                 No (7a)

 MEMORY
 Standard (Motherboard)                            8MB (2h)
 Maximum (Motherboard)                             16MB
 Maximum (System)                                  16MB (2r)
 Total # of Motherboard SIMM Sockets               3
 # of Motherboard SIMM Sockets Available           2
 Standard Memory Speed (ns)                        70
 Memory Type                                       DRAM
  Memory Interleaving                              Yes
 Wait States: Motherboard                          0
        Adapter                                    N/A (8q)
 Memory Used: Motherboard                          2/4/8MB SIMMs (70ns)


ΓòÉΓòÉΓòÉ 12.2.1.2. PS/2 Model 56-0B6/0BA/DB6/DBA/KB6/KBA/QB6/QBA: Standard Features ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

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 DESCRIPTION
                                                   9556-0B6/0BA/DB6/DBA/KB6/KBA/QB6/QBA
 STANDARD FEATURES
 ROM Size                                          256K
 ROM Shadowing                                     Yes
 BIOS Extensions Stored on Disk                    Yes (5v)
 Setup & Diags Stored on Disk                      Yes (5v)
 Optional Math Coprocessor                         387SX (8m)
  Coprocessor Speed                                25 MHz
 Standard Graphics                                 XGA-2
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Motherboard
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
  Resolutions Supported                            640x480x64K-Colors
                                                   800x600x64K-Colors
                                                   1024x768x256-Colors
                                                   1280x1024x16-Colors
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 Display Power Management Support                  Yes (7l)
 Maximum Graphics                                  XGA-2
 RS232C Serial Ports                               2
  9/25-Pin                                         9-pin
  UART Chip Used                                   NS16550 Type 4
  Maximum Speed (bits/second)                      345,600
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
  IBM Mouse Included                               Yes
   Mouse Resolution                                Up to 200 DPI, programmable
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 SCSI port                                         Yes (5c)
  Internal/External Connectors                     Yes/Yes
  On Motherboard/Adapter                           Motherboard


ΓòÉΓòÉΓòÉ 12.2.1.3. PS/2 Model 56-0B6/0BA/DB6/DBA/KB6/KBA/QB6/QBA: Disk/Tape Storage ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 56-0B6/0BA/DB6/DBA/KB6/KBA/QB6/QBA header.

 DESCRIPTION
                                                   9556-0B6/0BA/DB6/DBA/KB6/KBA/QB6/QBA
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     3
  # of 3.5"/5.25" Bays                             2/1
  # of 3.5"/5.25" Bays Available                   0/1
 Selectable Boot                                   Yes
  Bootable Physical Drives                         All
 Diskette Drives Standard                          1x2.88MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)(7t)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (j)(7t)
   Media Sensing                                   No
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      N/A
   Media Sensing                                   Yes
  3.5" 2.88MB                                      Optional (i)
   Media Sensing                                   Yes
  3.5" Enhanced 2.88MB                             Optional (i)
   Media Sensing                                   Yes
   Electronic Lock/Eject                           Yes
  Internal Drives Supported                        2
  External Drives Supported                        1
  Maximum # Diskette Drives                        3
 Hard Disk Drives Standard                         1x104MB (0B6/DB6/KB6/QB6)
                                                   1x208MB/212MB
                                                   (0BA/DBA/KBA/QBA) (6h)
  Drive Type                                       SCSI
  Encoding Method                                  RLL
  Drive Form Factor                                3.5"
  Average Access Rate (ms)                         12
  Sector Buffer Size                               32K
  Data Transfer Rate (/Second)                     20.1 MBits
  Average Latency (ms)                             6.94
  Rotational Speed (RPMs)                          4320
  # of Heads                                       2 (104MB)
                                                   4 (208MB/212MB)
  # of Platters                                    1 (104MB)
                                                   2 (208MB/212MB)
  Sectors per Track                                44
  Cylinders                                        2009
  Shock Rating (Gs): Operating                     ??
            Non-operating                          ??
  MTBF (Hours)                                     ???,???
  Auto Park                                        Yes
  Maximum # of Internal HD Drives                  2
  Optional HD Sizes Available:                     170MB (13ms)
                                                   340MB (13ms)
                                                   540MB (8.7ms)
                                                   1GB (8.6ms)
                                                   2GB (9.5ms)
  Maximum Internal HD Capacity                     4GB (3z)(4o)(5k)
 Standard Hard Disk Controller Type                SCSI-2 (SCSI Common Command
                                                   Set V4.B)
  Bus Master                                       Yes
   Adapter/Motherboard                             Motherboard
   Local Bus Implementation                        Yes
   Synchronous/Async Data Transfers                Yes
   16-bit Controller                               Standard
   32-bit Adapter With Cache                       Optional
  # of Devices Supported/Adapter                   7/15 (3r)
  # of Adapters Supported/System                   3
  Controller Data Transfer/Second
   Controller to Micro Channel                     8.3 MBytes
   Controller to SCSI Devices                      5.0 MBytes
  Interleave Factor                                1:1
 Internal Rewritable Optical Disk Drives           Optional
  Maximum Internal Drives Supported                1 (5k)
 Internal Optical CD-ROM Drives                    Optional
  Maximum Internal Drives Supported                1 (5k)

 EXTERNAL EXPANSION UNIT SUPPORT
 IBM 3510 (1-Bay)                                  Yes
 IBM 3511 (7-Bays)                                 Yes
 IBM 3514 (8-Bays, RAID-5, SCSI-2)                 Yes
 IBM 3515 (4-Bays, Streaming Data,
  RAID-0/RAID-1)                                   No

 TAPE STORAGE
 Internal Tape Drive Support
  3.5" Internal Tape Backup Unit                   Yes (9b)
  5.25" QIC SCSI Tape Drive                        No
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        No
 External Tape Drive Support
  5.25" QIC SCSI Tape Drive                        Yes
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        Yes


ΓòÉΓòÉΓòÉ 12.2.1.4. PS/2 Model 56-0B6/0BA/DB6/DBA/KB6/KBA/QB6/QBA: Expansion/Operating System ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 56-0B6/0BA/DB6/DBA/KB6/KBA/QB6/QBA header. isyn

 DESCRIPTION
                                                   9556-0B6/0BA/DB6/DBA/KB6/KBA/QB6/QBA
 EXPANSION
 Total Adapter Slots                               3
  # of Long/Short Slots                            3/0
  # of 8/16/32-bit Slots                           0/3/0 (3a)
  # of Slots with Video Extension                  1
 Available Slots                                   3
  Maximum RAM with Available Slots                 16MB (8q)

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        5.00.1 or later
 IBM PC-DOS/V (Japanese)                           5.02 or later
 IBM OS/2                                          2.00.1 (ServicePak Level
                                                   6050) or later
 IBM OS/2 (Japanese)                               2.0 or later
 IBM AIX PS/2                                      1.3.0 or later
 SCO XENIX                                         2.3.4 or later
 SCO UNIX 3.2                                      V.4 or later


ΓòÉΓòÉΓòÉ 12.2.1.5. PS/2 Model 56-0B6/0BA/DB6/DBA/KB6/KBA/QB6/QBA: Keyboard/Security ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 56-0B6/0BA/DB6/DBA/KB6/KBA/QB6/QBA header.

 DESCRIPTION
                                                   9556-0B6/0BA/DB6/DBA/KB6/KBA/QB6/QBA
 KEYBOARD
 122-Key Host-Connected Keyboard (6w)              Yes (8p)
 106-Key Japanese Keyboard                         Yes (8p)
 101-Key Enhanced Keyboard                         Yes (8p)
 84-Key Keyboard                                   Yes (8p)
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         10 (3 meters)

 SECURITY
 Vital Product Data (VPD) Enabled                  Yes (5m)
 C2 Security Enabled                               Yes (7j)
 LogicLock Security                                Yes (7j)
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Cable-Down Capability                             Yes
 Lockable Cable Cover                              Optional


ΓòÉΓòÉΓòÉ 12.2.1.6. PS/2 Model 56-0B6/0BA/DB6/DBA/KB6/KBA/QB6/QBA: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 56-0B6/0BA/DB6/DBA/KB6/KBA/QB6/QBA header.

 DESCRIPTION
                                                   9556-0B6/0BA/DB6/DBA/KB6/KBA/QB6/QBA
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
  Orientation                                      Horizontal (6x)
  Vertical-Mount Floor Stand                       Optional
 Dimensions: Height                                4.5"
        Width                                      14.2"
        Depth                                      15.6"
 Weight (lbs):                                     26.0

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              118
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-137 VAC                          3.5
        180-265 VAC                                1.75
 Operating Range: Temperature                      50-95┬░ F
           Rel. Humidity                           8-80%
 Maximum Current Leakage (uA)                      <500
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  123
 Noise (Avg dB, Operating, 1m)                     50
    Classification                                 3D
 Power Management Support                          Yes
  System/Monitor                                   Monitor (7l)

 MISCELLANEOUS
 Software Included                                 OS/2 2.00.1 (0B6/0BA)
                                                   DOS 5.02/Win 3.1 (QB6/QBA)
                                                   OS/2 2.1 (KB6/KBA)
                                                   Choice of DOS 5.02/Win 3.1,
                                                   DOS 6.1/Win 3.1, OS/2
                                                   2.00.1, or OS/2 2.1
                                                   (DB6/DBA)
 FCC Classification                                B
 UL Approval                                       UL 1950, 1st Edition
 CSA Approval                                      CSA22.2 No. 220-M1986
 Warranty Period                                   3 Years
  On-site/Carry-in                                 On-site
  Int'l Traveler's Warranty Service                No
  Countries Warranty Valid In                      USA/Canada
 BIOS Model/Submodel/Revision                      F8/38/00
 Date Announced                                    09/21/92 (0B6/0BA)
                                                   05/04/93 (QB6/QBA)
                                                   05/25/93 (KB6/KBA)
                                                   07/13/93 (DB6/DBA)
 Date Withdrawn                                    07/26/93 (0B6/0BA)
                                                   08/16/93 (KB6/KBA/QB6/QBA)
                                                   04/14/95 (DB6/DBA)


ΓòÉΓòÉΓòÉ 12.2.1.7. PS/2 Model 56-0B6/0BA/DB6/DBA/KB6/KBA/QB6/QBA: Limitations ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 56-0B6/0BA/DB6/DBA/KB6/KBA/QB6/QBA header.

 The following options and adapters are Not supported by this system.

     3363 Optical (WORM) Disk Drive models A11, B01
     5.25" 360K External Diskette Drive Adapter/A (6450245/#8760)
     5.25" 1.2MB Internal Diskette Drive (6451006; replaced by 6451066)
     All memory adapters
     All SIMMs except 2MB/4MB/8MB 70ns
     ARTIC PortMaster Adapter/A (53F2601/53F2604/53F2607) and options
     CD-ROM Drive (6450845/#0845; replaced by 6451113/#1113)
     Image Adapter/A (07F4400/#4324; replaced by 06G8215/#0072)
     Image Adapter/A 1MB (44F9626/#0072; replaced by 06G8215/#0072), 3MB
      (69F9724/#0073; replaced by 06G8216/#0073), 3MB 6091 (44F9621/#0074;
      replaced by 06G8217/#0074)


ΓòÉΓòÉΓòÉ 12.3. PS/2 Model 56 486SLC3 Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
IBM 486SLC3-based Model 56 systems.

Choose the section to which you wish to jump, below:

 75/25MHz Systems
 PS/2 Model 56-DE9/DEB/DED
 PS/2 Model 56(LS)-1EX/2EX

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 12.3.1. PS/2 Model 56-DE9/DEB/DED Tech Specs ΓòÉΓòÉΓòÉ

The PS/2 Models 56-DE9/DEB/DED are identical except for the hard disk drive
used, and operating system included.  Therefore all models will be covered by
this one document. Differences will be indicated by model number in
parentheses.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Jump directly to the PS/2 Model 56 486SLC3 Systems header.


ΓòÉΓòÉΓòÉ 12.3.1.1. PS/2 Model 56-DE9/DEB/DED: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 56-DE9/DEB/DED header.

 DESCRIPTION                                       9556-DE9/DEB/DED
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    IBM 486SLC3 (7g)
 Clock-Tripling                                    Yes
 Clock Speed (MHz)                                 75/25
 Internal/External Cache                           Internal (4u)
  Cache Size                                       16K
 Instruction Set                                   32 bit
 Addressing                                        24 Bit
 I/O Channel Width                                 16 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
  DMA Burst Mode Supported                         ???
  24/32-bit DMA Controller                         24
 Upgradeable Processor Complex                     Yes
  Processor Upgrades Available                     None yet
 Bus Masters Supported                             15
 Interleaved Memory                                Yes
 Matched Memory Cycle                              N/A (5i)
 Page Memory Logic                                 No (7a)

 MEMORY
 Standard (Motherboard)                            8MB (2h)
 Maximum (Motherboard)                             16MB
 Maximum (System)                                  16MB (2r)
 Total # of Motherboard SIMM Sockets               3
 # of Motherboard SIMM Sockets Available           2
 Standard Memory Speed (ns)                        70
 Memory Type                                       DRAM
  Memory Interleaving                              Yes
 Wait States: Motherboard                          0
        Adapter                                    N/A (8q)
 Memory Used: Motherboard                          2/4/8MB SIMMs (70ns)


ΓòÉΓòÉΓòÉ 12.3.1.2. PS/2 Model 56-DE9/DEB/DED: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 56-DE9/DEB/DED header.

 DESCRIPTION                                       9556-DE9/DEB/DED
 STANDARD FEATURES
 ROM Size                                          256K
 ROM Shadowing                                     Yes
 SurePath BIOS Flash ROM                           Yes (7p)
 BIOS Extensions Stored on Disk                    Yes (5v)
 Setup & Diags Stored on Disk                      Yes (5v)
 Optional Math Coprocessor                         387SX (8m)
  Coprocessor Speed                                25 MHz
 Standard Graphics                                 XGA-2
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Motherboard
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
  Resolutions Supported                            640x480 64K Colors
                                                   800x600 64K Colors
                                                   1024x768 256 Colors
                                                   1280x1024 16 Colors
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 Display Power Management Support                  Yes (7l)
 Maximum Graphics                                  XGA-2
 RS232C Serial Ports                               2
  9/25-Pin                                         9-pin
  UART Chip Used                                   NS16550 Type 4
  Maximum Speed (bits/second)                      345,600
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
  IBM Mouse Included                               (m)
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 SCSI port                                         Yes (5c)
  Internal/External Connectors                     Yes/Yes
  On Motherboard/Adapter                           Motherboard


ΓòÉΓòÉΓòÉ 12.3.1.3. PS/2 Model 56-DE9/DEB/DED: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 56-DE9/DEB/DED header.

 DESCRIPTION                                       9556-DE9/DEB/DED
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     3
  # of 3.5"/5.25" Bays                             2/1
  # of 3.5"/5.25" Bays Available                   0/1
 Selectable Boot                                   Yes
  Bootable Physical Drives                         All
 Diskette Drives Standard                          1x2.88MB
 Optional Diskette Drives
  3.5" 2.88MB                                      Optional (g)(7t)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (j)(7t)
   Media Sensing                                   No
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      N/A
   Media Sensing                                   Yes
  3.5" 2.88MB                                      Optional (i)
   Media Sensing                                   Yes
  3.5" Enhanced 2.88MB                             Optional (i)
   Media Sensing                                   Yes
   Electronic Lock/Eject                           Yes
  Internal Drives Supported                        2
  External Drives Supported                        1
  Maximum # Diskette Drives                        3
 Hard Disk Drives Standard                         1x170MB (DE9)
                                                   1x245MB (DEB)
                                                   1x340MB (DED)
  Drive Type                                       SCSI
  Encoding Method                                  RLL
  Drive Form Factor                                3.5"
  Average Access Rate (ms)                         13 (170MB/340MB)
                                                   16 (245MB)
  Sector Buffer Size                               ???K
  Data Transfer Rate (/Second)                     28.0 Mbits; 3.5 MBytes
                                                   (170MB/340MB)
                                                   30.1 Mbits; 3.8 Mbytes
                                                   (245MB)
  Average Latency (ms)                             8.33 (170MB/340MB)
                                                   7.0 (245MB)
  Rotational Speed (RPMs)                          ????
  # of Heads                                       ? (170MB)
                                                   ? (245MB)
  # of Platters                                    ? (170MB)
                                                   ? (245MB)
  Sectors per Track                                ??
  Cylinders                                        ????
  Shock Rating (Gs): Operating                     ??
            Non-operating                          ??
  MTBF (Hours)                                     250,000 (170MB/340MB)
                                                   ???,??? (245MB)
  Auto Park                                        Yes
  Maximum # of Internal HD Drives                  2
  Optional HD Sizes Available:                     170MB (13ms)
                                                   340MB (13ms)
                                                   540MB (8.7ms)
                                                   1GB (8.6ms)
                                                   2GB (9.5ms)
  Maximum Internal HD Capacity                     4GB (3z)(4o)(5k)
 Standard Hard Disk Controller Type                SCSI-2 (SCSI Common Command
                                                   Set V4.B)
  Bus Master                                       Yes
   Adapter/Motherboard                             Motherboard
   Local Bus Implementation                        Yes
   Synchronous/Async Data Transfers                Yes
   16-bit Controller                               Standard
   32-bit Adapter With Cache                       Optional
  # of Devices Supported/Adapter                   7/15 (3r)
  # of Adapters Supported/System                   3
  Controller Data Transfer/Second
   Controller to Micro Channel                     8.3 MBytes
   Controller to SCSI Devices                      5.0 MBytes
  Interleave Factor                                1:1
 Internal Rewritable Optical Disk Drives           Optional
  Maximum Internal Drives Supported                1 (5k)
 Internal Optical CD-ROM Drives                    Optional
  Maximum Internal Drives Supported                1 (5k)

 EXTERNAL EXPANSION UNIT SUPPORT
 IBM 3510 (1-Bay)                                  Yes
 IBM 3511 (7-Bays)                                 Yes
 IBM 3514 (8-Bays, RAID-5, SCSI-2)                 Yes
 IBM 3515 (4-Bays, Streaming Data,
  RAID-0/RAID-1)                                   No

 TAPE STORAGE
 Internal Tape Drive Support
  3.5" Internal Tape Backup Unit                   Yes (9b)
  5.25" QIC SCSI Tape Drive                        No
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        No
 External Tape Drive Support
  5.25" QIC SCSI Tape Drive                        Yes
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        Yes


ΓòÉΓòÉΓòÉ 12.3.1.4. PS/2 Model 56-DE9/DEB/DED: Expansion/Operating System ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 56-DE9/DEB/DED header.

 DESCRIPTION                                       9556-DE9/DEB/DED
 EXPANSION
 Total Adapter Slots                               3
  # of Long/Short Slots                            3/0
  # of 8/16/32-bit Slots                           0/3/0 (3a)
  # of Slots with Video Extension                  1
 Available Slots                                   3
  Maximum RAM with Available Slots                 16MB (8q)

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        5.02 or later
 IBM OS/2                                          1.30.1 or later


ΓòÉΓòÉΓòÉ 12.3.1.5. PS/2 Model 56-DE9/DEB/DED: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 56-DE9/DEB/DED header.

 DESCRIPTION                                       9556-DE9/DEB/DED
 KEYBOARD
 Select-a-Keyboard                                 Yes (m)
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         10 (3 meters)

 SECURITY
 Vital Product Data (VPD) Enabled                  Yes (5m)
 C2 Security Enabled                               Yes (7j)
 LogicLock Security                                Yes (7j)
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Cable-Down Capability                             Yes
 Lockable Cable Cover                              Optional


ΓòÉΓòÉΓòÉ 12.3.1.6. PS/2 Model 56-DE9/DEB/DED: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 56-DE9/DEB/DED header.

 DESCRIPTION                                       9556-DE9/DEB/DED
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
  Orientation                                      Horizontal (6x)
  Vertical-Mount Floor Stand                       Optional
 Dimensions: Height                                4.5"
        Width                                      14.2"
        Depth                                      15.6"
 Weight (lbs):                                     26.0

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              118
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-137 VAC                          3.5
        180-265 VAC                                1.75
 Operating Range: Temperature                      50-95┬░ F
           Rel. Humidity                           8-80%
 Maximum Current Leakage (uA)                      <500
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  123
 Noise (Avg dB, Operating, 1m)                     50
    Classification                                 3D
 Power Management Support                          Yes
  System/Monitor                                   Monitor (7l)

 MISCELLANEOUS
 Software Included                                 Choice of DOS 5.02/Win 3.1,
                                                   DOS 6.1/Win 3.1, OS/2
                                                   2.00.1, or OS/2 2.1
 FCC Classification                                B
 UL Approval                                       UL 1950, 1st Edition
 CSA Approval                                      CSA22.2 No. 220-M1986
 NOM                                               I-171
 Warranty Period                                   3 Years
  On-site/Carry-in                                 On-site
  Int'l Traveler's Warranty Service                No
  Countries Warranty Valid In                      USA/Canada
 BIOS Model/Submodel/Revision                      F8/38/04
 BIOS Date                                         29Jul93
 Date Announced                                    01Feb94
 Date Withdrawn                                    06/20/95


ΓòÉΓòÉΓòÉ 12.3.1.7. PS/2 Model 56-DE9/DEB/DED: Limitations ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 56-DE9/DEB/DED header.

 The following options and adapters are Not supported by this system.

     3363 Optical (WORM) Disk Drive models A11, B01
     5.25" 360K External Diskette Drive Adapter/A (6450245/#8760)
     5.25" 1.2MB Internal Diskette Drive (6451006; replaced by 6451066)
     All memory adapters
     All SIMMs except 2MB/4MB/8MB 70ns
     ARTIC PortMaster Adapter/A (53F2601/53F2604/53F2607) and options
     CD-ROM Drive (6450845/#0845; replaced by 6451113/#1113)
     Image Adapter/A (07F4400/#4324; replaced by 06G8215/#0072)
     Image Adapter/A 1MB (44F9626/#0072; replaced by 06G8215/#0072), 3MB
      (69F9724/#0073; replaced by 06G8216/#0073), 3MB 6091 (44F9621/#0074;
      replaced by 06G8217/#0074)


ΓòÉΓòÉΓòÉ 12.3.2. PS/2 Model 56(LS)-1EX/2EX Tech Specs ΓòÉΓòÉΓòÉ

Because the Model 56 LS (LAN Station) models are identical, except for a choice
of Token-Ring (9556-2EX) or Ethernet (9556-1EX) network adapter, both models
will be covered by this one document.  Differences will be indicated by model
number in parentheses.

What differentiates the LS models from the other 486SLC3 models is the presence
of a network adapter in one of the adapter slots (which reduces the number of
available slots), and the lack of any diskette or hard disk drives (which may
be added later) in the system.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Jump directly to the PS/2 Model 56 486SLC3 Systems header.


ΓòÉΓòÉΓòÉ 12.3.2.1. PS/2 Model 56-1EX/2EX: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 56-1EX/2EX header.

 DESCRIPTION                                       9556-1EX/2EX
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    IBM 486SLC3 (7g)
 Clock-Tripling                                    Yes
 Clock Speed (MHz)                                 75/25
 Internal/External Cache                           Internal (4u)
  Cache Size                                       16K
 Instruction Set                                   32 bit
 Addressing                                        24 Bit
 I/O Channel Width                                 16 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
  DMA Burst Mode Supported                         ???
  24/32-bit DMA Controller                         24
 Upgradeable Processor Complex                     Yes
  Processor Upgrades Available                     None yet
 Bus Masters Supported                             15
 Interleaved Memory                                Yes
 Matched Memory Cycle                              N/A (5i)
 Page Memory Logic                                 No (7a)

 MEMORY
 Standard (Motherboard)                            8MB (2h)
 Maximum (Motherboard)                             16MB
 Maximum (System)                                  16MB (2r)
 Total # of Motherboard SIMM Sockets               3
 # of Motherboard SIMM Sockets Available           2
 Standard Memory Speed (ns)                        70
 Memory Type                                       DRAM
  Memory Interleaving                              Yes
 Wait States: Motherboard                          0
        Adapter                                    N/A (8q)
 Memory Used: Motherboard                          2/4/8MB SIMMs (70ns)


ΓòÉΓòÉΓòÉ 12.3.2.2. PS/2 Model 56-1EX/2EX: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 56-1EX/2EX header.

 DESCRIPTION                                       9556-1EX/2EX
 STANDARD FEATURES
 ROM Size                                          256K
 ROM Shadowing                                     Yes
 SurePath BIOS Flash ROM                           Yes (7p)
 BIOS Extensions Stored on Disk                    Yes (5v)
 Setup & Diags Stored on Disk                      Yes (5v)
 Optional Math Coprocessor                         387SX (8m)
  Coprocessor Speed                                25 MHz
 Standard Graphics                                 XGA-2
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Motherboard
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
  Resolutions Supported                            640x480 64K Colors
                                                   800x600 64K Colors
                                                   1024x768 256 Colors
                                                   1280x1024 16 Colors
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 Display Power Management Support                  Yes (7l)
 Maximum Graphics                                  XGA-2
 RS232C Serial Ports                               2
  9/25-Pin                                         9-pin
  UART Chip Used                                   NS16550 Type 4
  Maximum Speed (bits/second)                      345,600
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
  IBM Mouse Included                               (m)
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 Token-Ring Adapters                               1 (6n) (2EX)
  Data Transfer Rate (Mbps)                        16/4
  Remote IPL feature installed                     Yes
 Ethernet Adapters                                 1 (6n) (1EX)
  Data Transfer Rate (Mbps)                        10
  Wiring Type                                      (v)
  Remote IPL feature installed                     Yes
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 SCSI port                                         Yes (5c)
  Internal/External Connectors                     Yes/Yes
  On Motherboard/Adapter                           Motherboard


ΓòÉΓòÉΓòÉ 12.3.2.3. PS/2 Model 56-1EX/2EX: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 56-1EX/2EX header.

 DESCRIPTION                                       9556-1EX/2EX
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     3
  # of 3.5"/5.25" Bays                             2/1
  # of 3.5"/5.25" Bays Available                   2/1
 Selectable Boot                                   Yes
  Bootable Physical Drives                         All
 Diskette Drives Standard                          0
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)(7t)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (j)(7i)(7t)
   Media Sensing                                   No
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      No
  3.5" 2.88MB                                      Optional (i)(7i)
   Media Sensing                                   Yes
  3.5" Enhanced 2.88MB                             Optional (i)(7i)
   Media Sensing                                   Yes
   Electronic Lock/Eject                           Yes
  Internal Drives Supported                        2(7i)
  External Drives Supported                        1
  Maximum # Diskette Drives                        3
 Hard Disk Drives Standard                         0
  Maximum # of Internal HD Drives                  2(7i)
  Drive Type                                       SCSI
  Encoding Method                                  RLL
  Drive Form Factor                                3.5"
  Optional HD Sizes Available:                     170MB (13ms)
                                                   340MB (13ms)
                                                   540MB (8.7ms)
                                                   1GB (8.6ms)
                                                   2GB (9.5ms)
  Maximum Internal HD Capacity                     4GB (3z)(5k)(7i)
 Standard Hard Disk Controller Type                SCSI-2 (SCSI Common Command
                                                   Set V4.B)
  Bus Master                                       Yes
   Adapter/Motherboard                             Motherboard
   Local Bus Implementation                        Yes
   Synchronous/Async Data Transfers                Yes
   16-bit Controller                               Standard
   32-bit Adapter With Cache                       Optional
  # of Devices Supported/Adapter                   7/15 (3r)
  # of Adapters Supported/System                   3
  Controller Data Transfer/Second
   Controller to Micro Channel                     8.3 MBytes
   Controller to SCSI Devices                      5.0 MBytes
  Interleave Factor                                1:1
 Internal Rewritable Optical Disk Drives           Optional
  Maximum Internal Drives Supported                1 (5k)
 Internal Optical CD-ROM Drives                    Optional
  Maximum Internal Drives Supported                1 (5k)

 EXTERNAL EXPANSION UNIT SUPPORT
 IBM 3510 (1-Bay)                                  Yes
 IBM 3511 (7-Bays)                                 Yes
 IBM 3514 (8-Bays, RAID-5, SCSI-2)                 Yes
 IBM 3515 (4-Bays, Streaming Data,
  RAID-0/RAID-1)                                   No

 TAPE STORAGE
 Internal Tape Drive Support
  3.5" Internal Tape Backup Unit                   Yes
  5.25" QIC SCSI Tape Drive                        No
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        No
 External Tape Drive Support
  5.25" QIC SCSI Tape Drive                        Yes
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        Yes


ΓòÉΓòÉΓòÉ 12.3.2.4. PS/2 Model 56-1EX/2EX: Expansion/Operating System ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 56-1EX/2EX header.

 DESCRIPTION                                       9556-1EX/2EX
 EXPANSION
 Total Adapter Slots                               3
  # of Long/Short Slots                            3/0
  # of 8/16/32-bit Slots                           0/3/0 (3a)
  # of Slots with Video Extension                  1
 Available Slots                                   3
  Maximum RAM with Available Slots                 16MB (8q)

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        5.02 or later
 IBM OS/2                                          1.30.1 or later


ΓòÉΓòÉΓòÉ 12.3.2.5. PS/2 Model 56-1EX/2EX: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 56-1EX/2EX header.

 DESCRIPTION                                       9556-1EX/2EX
 KEYBOARD
 Select-a-Keyboard                                 Yes (m)
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         10 (3 meters)

 SECURITY
 Vital Product Data (VPD) Enabled                  Yes (5m)
 C2 Security Enabled                               Yes (7j)
 LogicLock Security                                Yes (7j)
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Cable-Down Capability                             Yes
 Lockable Cable Cover                              Optional


ΓòÉΓòÉΓòÉ 12.3.2.6. PS/2 Model 56-1EX/2EX: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 56-1EX/2EX header.

 DESCRIPTION                                       9556-1EX/2EX
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
  Orientation                                      Horizontal (6x)
  Vertical-Mount Floor Stand                       Optional
 Dimensions: Height                                4.5"
        Width                                      14.2"
        Depth                                      15.6"
 Weight (lbs):                                     26.0

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              118
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-137 VAC                          3.5
        180-265 VAC                                1.75
 Operating Range: Temperature                      50-95┬░ F
           Rel. Humidity                           8-80%
 Maximum Current Leakage (uA)                      <500
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  136 (1EX)
                                                   150 (2EX)
 Noise (Avg dB, Operating, 1m)                     50
    Classification                                 3D
 Power Management Support                          Yes
  System/Monitor                                   Monitor (7l)

 MISCELLANEOUS
 Software Included                                 None (7m)
 FCC Classification                                B (1EX)
                                                   B/A (2EX) (4c)
 UL Approval                                       UL 1950, 1st Edition
 CSA Approval                                      CSA22.2 No. 220-M1986
 NOM                                               I-171
 Warranty Period                                   3 Years
  On-site/Carry-in                                 On-site
  Int'l Traveler's Warranty Service                No
  Countries Warranty Valid In                      USA/Canada
 BIOS Model/Submodel/Revision                      F8/38/04
 BIOS Date                                         29Jul93
 Date Announced                                    01Feb94
 Date Withdrawn                                    06/20/95


ΓòÉΓòÉΓòÉ 12.3.2.7. PS/2 Model 56-1EX/2EX: Limitations ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 56-1EX/2EX header.

 The following options and adapters are Not supported by this system.

     3363 Optical (WORM) Disk Drive models A11, B01
     5.25" 360K External Diskette Drive Adapter/A (6450245/#8760)
     5.25" 1.2MB Internal Diskette Drive (6451006; replaced by 6451066)
     All memory adapters
     All SIMMs except 2MB/4MB/8MB 70ns
     ARTIC PortMaster Adapter/A (53F2601/53F2604/53F2607) and options
     CD-ROM Drive (6450845/#0845; replaced by 6451113/#1113)
     Image Adapter/A (07F4400/#4324; replaced by 06G8215/#0072)
     Image Adapter/A 1MB (44F9626/#0072; replaced by 06G8215/#0072), 3MB
      (69F9724/#0073; replaced by 06G8216/#0073), 3MB 6091 (44F9621/#0074;
      replaced by 06G8217/#0074)


ΓòÉΓòÉΓòÉ 12.4. PS/2 Model 57 486SLC2 Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
IBM 486SLC2-based Model 57 systems.

Choose the section to which you wish to jump, below:

 50/25MHz Systems
 PS/2 Model 57-0B6/0BA/DB6/DBA/DBG/KB6/KBA/KBG/QB6/QBA

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 12.4.1. PS/2 Model 57-0B6/0BA/DB6/DBA/DBG/KB6/KBA/KBG/QB6/QBA Tech Specs ΓòÉΓòÉΓòÉ

The PS/2 Models 57-0B6/0BA/DB6/DBA/DBG/KB6/KBA/KBG/QB6/QBA are identical except
for the hard disk drive used, and choice of operating system included.
Therefore all models will be covered by this one document. Differences will be
indicated by model number in parentheses.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Jump directly to the PS/2 Model 57 486SLC2 Systems header.


ΓòÉΓòÉΓòÉ 12.4.1.1. PS/2 Model 57-0B6/0BA/DB6/DBA/DBG/KB6/KBA/KBG/QB6/QBA: Architecture/Memory ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 57-0B6/0BA/DB6/DBA/DBG/KB6/KBA/KBG/QB6/QBA header.

 DESCRIPTION
                                                   9557-0B6/0BA/DB6/DBA/DBG/KB6/KBA/KBG/QB6/QBA
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    IBM 486SLC2 (2g)
 Clock-Doubling                                    Yes
 Clock Speed (MHz)                                 50/25
 Internal/External Cache                           Internal (4u)
  Cache Size                                       16K
 Instruction Set                                   32 bit
 Addressing                                        24 Bit
 I/O Channel Width                                 16 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
  DMA Burst Mode Supported                         ???
  24/32-bit DMA Controller                         24
 Upgradeable Processor Complex                     Yes
  Processor Upgrades Available                     75/25MHz IBM 486SLC3 (7g)
 Bus Masters Supported                             15
 Interleaved Memory                                Yes
 Matched Memory Cycle                              N/A (5i)
 Page Memory Logic                                 No (7a)

 MEMORY
 Standard (Motherboard)                            8MB (2h)
 Maximum (Motherboard)                             16MB
 Maximum (System)                                  16MB (2r)
 Total # of Motherboard SIMM Sockets               3
 # of Motherboard SIMM Sockets Available           2
 Standard Memory Speed (ns)                        70
 Memory Type                                       DRAM
  Memory Interleaving                              Yes
 Wait States: Motherboard                          0
        Adapter                                    N/A (8q)
 Memory Used: Motherboard                          2/4/8MB SIMMs (70ns)


ΓòÉΓòÉΓòÉ 12.4.1.2. PS/2 Model 57-0B6/0BA/DB6/DBA/DBG/KB6/KBA/KBG/QB6/QBA: Standard Features ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 57-0B6/0BA/DB6/DBA/DBG/KB6/KBA/KBG/QB6/QBA header.

 DESCRIPTION
                                                   9557-0B6/0BA/DB6/DBA/DBG/KB6/KBA/KBG/QB6/QBA
 STANDARD FEATURES
 ROM Size                                          256K
 ROM Shadowing                                     Yes
 BIOS Extensions Stored on Disk                    Yes (5v)
 Setup & Diags Stored on Disk                      Yes (5v)
 Optional Math Coprocessor                         387SX (8m)
  Coprocessor Speed                                25 MHz
 Standard Graphics                                 XGA-2
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Motherboard
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
  Resolutions Supported                            640x480 64K Colors
                                                   800x600 64K Colors
                                                   1024x768 256 Colors
                                                   1280x1024 16 Colors
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 Maximum Graphics                                  XGA-2
 RS232C Serial Ports                               2
  9/25-Pin                                         9-pin
  UART Chip Used                                   NS16550 Type 4
  Maximum Speed (bits/second)                      345,600
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
  IBM Mouse Included                               Yes
   Mouse Resolution                                Up to 200 DPI, programmable
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 SCSI port                                         Yes (5c)
  Internal/External Connectors                     Yes/Yes
  On Motherboard/Adapter                           Motherboard


ΓòÉΓòÉΓòÉ 12.4.1.3. PS/2 Model 57-0B6/0BA/DB6/DBA/DBG/KB6/KBA/KBG/QB6/QBA: Disk/Tape Storage ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 57-0B6/0BA/DB6/DBA/DBG/KB6/KBA/KBG/QB6/QBA header.

 DESCRIPTION
                                                   9557-0B6/0BA/DB6/DBA/DBG/KB6/KBA/KBG/QB6/QBA
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     4
  # of 3.5"/5.25" Bays                             2/2
  # of 3.5"/5.25" Bays Available                   0/2
 Selectable Boot                                   Yes
  Bootable Physical Drives                         All
 Diskette Drives Standard                          1x2.88MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)(7t)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (j)(7t)
   Media Sensing                                   Yes
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      Optional (i)
   Media Sensing                                   No
  3.5" 2.88MB                                      Optional (i)
   Media Sensing                                   Yes
  3.5" Enhanced 2.88MB                             Optional (i)
   Media Sensing                                   Yes
   Electronic Lock/Eject                           Yes
  Internal Drives Supported                        2
  External Drives Supported                        1
  Maximum # Diskette Drives                        3
 Hard Disk Drives Standard                         1x104MB (0B6/DB6/KB6/QB6)
                                                   1x208MB/212MB
                                                   (0BA/DBA/KBA/QBA) (6h)
                                                   1x540MB (DBG/KBG)
  Drive Type                                       SCSI
  Encoding Method                                  RLL
  Drive Form Factor                                3.5"
  Average Access Rate (ms)                         12 (104MB/208MB/212MB)
                                                   10 (540MB)
  Sector Buffer Size                               32K (104MB/208MB/212MB)
                                                   256K (540MB)
  Data Transfer Rate (/Second)                     20.1 MBits
                                                   (104MB/208MB/212MB)
                                                   3.22 MBytes (540MB)
  Average Latency (ms)                             6.94 (104MB/208MB/212MB)
                                                   5.55 (540MB)
  Rotational Speed (RPMs)                          4320 (104MB/208MB/212MB)
                                                   6300 (540MB)
  # of Heads                                       2 (104MB)
                                                   4 (208MB/212MB)
                                                   7 (540MB)
  # of Platters                                    1 (104MB)
                                                   2 (208MB/212MB)
                                                   4 (540MB)
  Sectors per Track                                44 (104MB/208MB/212MB)
                                                   ?? (540MB)
  Cylinders                                        2009 (104MB/208MB/212MB)
                                                   2466 (540MB)
  Shock Rating (Gs): Operating                     ?? (104MB/208MB/212MB)
                                                   10 (540MB)
            Non-operating                          ?? (104MB/208MB/212MB)
                                                   70 (540MB)
  MTBF (Hours)                                     ???,??? (104MB/208MB/212MB)
                                                   300,000 (540MB)
  Auto Park                                        Yes
  Maximum # of Internal HD Drives                  3
  Optional HD Sizes Available:                     170MB (13ms)
                                                   340MB (13ms)
                                                   540MB (8.7ms)
                                                   1GB (8.6ms)
                                                   2GB (9.5ms)
  Maximum Internal HD Capacity                     6GB (3z)(4o)(5k)
 Standard Hard Disk Controller Type                SCSI-2 (SCSI Common Command
                                                   Set V4.B)
  Bus Master                                       Yes
   Adapter/Motherboard                             Motherboard
   Local Bus Implementation                        Yes
   Synchronous/Async Data Transfers                Yes
   16-bit Controller                               Standard
   32-bit Adapter With Cache                       Optional
  # of Devices Supported/Adapter                   7/15 (3r)
  # of Adapters Supported/System                   4
  Controller Data Transfer/Second
   Controller to Micro Channel                     8.3 MBytes
   Controller to SCSI Devices                      5.0 MBytes
  Interleave Factor                                1:1
 Internal Rewritable Optical Disk Drives           Optional
  Maximum Internal Drives Supported                1 (5k)
 Internal Optical CD-ROM Drives                    Optional
  Maximum Internal Drives Supported                1 (5k)

 EXTERNAL EXPANSION UNIT SUPPORT
 IBM 3510 (1-Bay)                                  Yes
 IBM 3511 (7-Bays)                                 Yes
 IBM 3514 (8-Bays, RAID-5, SCSI-2)                 Yes
 IBM 3515 (4-Bays, Streaming Data,
  RAID-0/RAID-1)                                   No

 TAPE STORAGE
 Internal Tape Drive Support
  3.5" Internal Tape Backup Unit                   Yes (9b)
  5.25" QIC SCSI Tape Drive                        No
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        No
 External Tape Drive Support
  5.25" QIC SCSI Tape Drive                        Yes
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        Yes


ΓòÉΓòÉΓòÉ 12.4.1.4. PS/2 Model 57-0B6/0BA/DB6/DBA/DBG/KB6/KBA/KBG/QB6/QBA: Expansion/Operating System ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 57-0B6/0BA/DB6/DBA/DBG/KB6/KBA/KBG/QB6/QBA header.

 DESCRIPTION
                                                   9557-0B6/0BA/DB6/DBA/DBG/KB6/KBA/KBG/QB6/QBA
 EXPANSION
 Total Adapter Slots                               5
  # of Long/Short Slots                            5/0
  # of 8/16/32-bit Slots                           0/5/0 (3a)
  # of Slots with Video Extension                  1
 Available Slots                                   5
  Maximum RAM with Available Slots                 16MB (8q)

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        5.00.1 or later
 IBM PC-DOS/V (Japanese)                           5.02 or later
 IBM OS/2                                          2.00.1 (ServicePak Level
                                                   6050) or later
 IBM OS/2 (Japanese)                               2.0 or later
 IBM AIX PS/2                                      1.3.0 or later
 SCO XENIX                                         2.3.4 or later
 SCO UNIX 3.2                                      V.4 or later


ΓòÉΓòÉΓòÉ 12.4.1.5. PS/2 Model 57-0B6/0BA/DB6/DBA/DBG/KB6/KBA/KBG/QB6/QBA: Keyboard/Security ΓòÉΓòÉΓòÉ

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 57-0B6/0BA/DB6/DBA/DBG/KB6/KBA/KBG/QB6/QBA header.

 DESCRIPTION
                                                   9557-0B6/0BA/DB6/DBA/DBG/KB6/KBA/KBG/QB6/QBA
 KEYBOARD
 122-Key Host-Connected Keyboard (6w)              Yes (8p)
 106-Key Japanese Keyboard                         Yes (8p)
 101-Key Enhanced Keyboard                         Yes (8p)
 84-Key Keyboard                                   Yes (8p)
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         10 (3 meters)

 SECURITY
 Vital Product Data (VPD) Enabled                  Yes (5m)
 C2 Security Enabled                               Yes (7j)
 LogicLock Security                                Yes (7j)
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Cable-Down Capability                             No
 Lockable Cable Cover                              No


ΓòÉΓòÉΓòÉ 12.4.1.6. PS/2 Model 57-0B6/0BA/DB6/DBA/DBG/KB6/KBA/KBG/QB6/QBA: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 57-0B6/0BA/DB6/DBA/DBG/KB6/KBA/KBG/QB6/QBA header.

 DESCRIPTION
                                                   9557-0B6/0BA/DB6/DBA/DBG/KB6/KBA/KBG/QB6/QBA
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
  Orientation                                      Horizontal/Vertical (6y)
  Vertical-Mount Floor Stand                       Standard
 Dimensions: Height                                6.7"
        Width                                      17.3"
        Depth                                      15.5"
 Weight (lbs):                                     32.0

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              197
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Manual
 Amperage at:  90-137 VAC                          6.0
        180-265 VAC                                3.0
 Operating Range: Temperature                      50-95┬░ F
           Rel. Humidity                           8-85%
 Maximum Current Leakage (uA)                      <500
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  120
 Noise (Avg dB, Operating, 1m)                     50
    Classification                                 3D
 Power Management Support                          Yes
  System/Monitor                                   Monitor (7l)

 MISCELLANEOUS
 Software Included                                 OS/2 2.00.1 (0B6/0BA)
                                                   DOS 5.02/Win 3.1 (QB6/QBA)
                                                   OS/2 2.1 (KB6/KBA/KBG)
                                                   Choice of DOS 5.02/Win 3.1,
                                                   DOS 6.1/Win 3.1, OS/2
                                                   2.00.1, or OS/2 2.1
                                                   (DB6/DBA/DBG)
 FCC Classification                                B
 UL Approval                                       UL 1950, 1st Edition
 CSA Approval                                      CSA22.2 No. 220-M1986
 Warranty Period                                   3 Years
  On-site/Carry-in                                 On-site
  Countries Warranty Valid In                      USA/Canada
 BIOS Model/Submodel/Revision                      F8/38/00
 BIOS Date                                         08/05/92
 Date Announced                                    09/21/92 (0B6/0BA)
                                                   05/04/93 (QB6/QBA)
                                                   05/25/93 (KB6/KBA)
                                                   07/13/93 (DB6/DBA/DBG)
 Date Withdrawn                                    07/26/93 (0B6/0BA)
                                                   08/16/93
                                                   (KB6/KBA/KBG/QB6/QBA)
                                                   04/14/95 (DB6/DBA/DBG)


ΓòÉΓòÉΓòÉ 12.4.1.7. PS/2 Model 57-0B6/0BA/DB6/DBA/DBG/KB6/KBA/KBG/QB6/QBA: Limitations ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 57-0B6/0BA/DB6/DBA/DBG/KB6/KBA/KBG/QB6/QBA header.

 The following options and adapters are Not supported by this system.

     3118 Scanner
     3363 Optical (WORM) Disk Drive models A11, B01
     5.25" 360K External Diskette Drive Adapter/A (6450245/#8760)
     5.25" 1.2MB Internal Diskette Drive (6451006; replaced by 6451066)
     All memory adapters
     All SIMMs except 2MB/4MB/8MB 70ns
     CD-ROM Drive (6450845/#0845; replaced by 6451113/#1113)
     Image Adapter/A (07F4400/#4324; replaced by 06G8215/#0072)
     Image Adapter/A 1MB (44F9626/#0072; replaced by 06G8215/#0072), 3MB
      (69F9724/#0073; replaced by 06G8216/#0073), 3MB 6091 (44F9621/#0074;
      replaced by 06G8217/#0074)


ΓòÉΓòÉΓòÉ 12.5. PS/2 Model 57 486SLC3 Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
IBM 486SLC3-based Model 57 systems.

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 75/25MHz Systems
 PS/2 Model 57-DE9/DEB/DED/DEG

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 12.5.1. PS/2 Model 57-DE9/DEB/DED/DEG Tech Specs ΓòÉΓòÉΓòÉ

The PS/2 Models 57-DE9/DEB/DED/DEG are identical except for the hard disk drive
used, and choice of operating system included.  Therefore all models will be
covered by this one document. Differences will be indicated by model number in
parentheses.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Jump directly to the PS/2 Model 57 486SLC3 Systems header.


ΓòÉΓòÉΓòÉ 12.5.1.1. PS/2 Model 57-DE9/DEB/DED/DEG: Architecture/Memory ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 57-DE9/DEB/DED/DEG header.

 DESCRIPTION                                       9557-DE9/DEB/DED/DEG
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    IBM 486SLC3 (7g)
 Clock-Doubling                                    Yes
 Clock Speed (MHz)                                 50/25
 Internal/External Cache                           Internal (4u)
  Cache Size                                       16K
 Instruction Set                                   32 bit
 Addressing                                        24 Bit
 I/O Channel Width                                 16 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
  DMA Burst Mode Supported                         ???
  24/32-bit DMA Controller                         24
 Upgradeable Processor Complex                     Yes
  Processor Upgrades Available                     None yet
 Bus Masters Supported                             15
 Interleaved Memory                                Yes
 Matched Memory Cycle                              N/A (5i)
 Page Memory Logic                                 No (7a)

 MEMORY
 Standard (Motherboard)                            8MB (2h)
 Maximum (Motherboard)                             16MB
 Maximum (System)                                  16MB (2r)
 Total # of Motherboard SIMM Sockets               3
 # of Motherboard SIMM Sockets Available           2
 Standard Memory Speed (ns)                        70
 Memory Type                                       DRAM
  Memory Interleaving                              Yes
 Wait States: Motherboard                          0
        Adapter                                    N/A (8q)
 Memory Used: Motherboard                          2/4/8MB SIMMs (70ns)


ΓòÉΓòÉΓòÉ 12.5.1.2. PS/2 Model 57-DE9/DEB/DED/DEG: Standard Features ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 57-DE9/DEB/DED/DEG header.

 DESCRIPTION                                       9557-DE9/DEB/DED/DEG
 STANDARD FEATURES
 ROM Size                                          256K
 ROM Shadowing                                     Yes
 SurePath BIOS Flash ROM                           Yes (7p)
 BIOS Extensions Stored on Disk                    Yes (5v)
 Setup & Diags Stored on Disk                      Yes (5v)
 Optional Math Coprocessor                         387SX (8m)
  Coprocessor Speed                                25 MHz
 Standard Graphics                                 XGA-2
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Motherboard
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
  Resolutions Supported                            640x480 64K Colors
                                                   800x600 64K Colors
                                                   1024x768 256 Colors
                                                   1280x1024 16 Colors
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 Display Power Management Support                  Yes (7l)
 Maximum Graphics                                  XGA-2
 RS232C Serial Ports                               2
  9/25-Pin                                         9-pin
  UART Chip Used                                   NS16550 Type 4
  Maximum Speed (bits/second)                      345,600
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
  IBM Mouse Included                               (m)
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 SCSI port                                         Yes (5c)
  Internal/External Connectors                     Yes/Yes
  On Motherboard/Adapter                           Motherboard


ΓòÉΓòÉΓòÉ 12.5.1.3. PS/2 Model 57-DE9/DEB/DED/DEG: Disk/Tape Storage ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 57-DE9/DEB/DED/DEG header.

 DESCRIPTION                                       9557-DE9/DEB/DED/DEG
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     4
  # of 3.5"/5.25" Bays                             2/2
  # of 3.5"/5.25" Bays Available                   0/2
 Selectable Boot                                   Yes
  Bootable Physical Drives                         All
 Diskette Drives Standard                          1x2.88MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)(7t)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (j)(7t)
   Media Sensing                                   Yes
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      Optional (i)
   Media Sensing                                   No
  3.5" 2.88MB                                      Optional (i)
   Media Sensing                                   Yes
  3.5" Enhanced 2.88MB                             Optional (i)
   Media Sensing                                   Yes
   Electronic Lock/Eject                           Yes
  Internal Drives Supported                        2
  External Drives Supported                        1
  Maximum # Diskette Drives                        3
 Hard Disk Drives Standard                         1x170MB (DE9)
                                                   1x245MB (DEB)
                                                   1x340MB (DED)
                                                   1x540MB (DEG)
  Drive Type                                       SCSI
  Encoding Method                                  RLL
  Drive Form Factor                                3.5"
  Average Access Rate (ms)                         13 (170MB/340MB)
                                                   16 (245MB)
                                                   10 (540MB)
  Sector Buffer Size                               ???K (170MB/245MB/340MB)
                                                   256K (540MB)
  Data Transfer Rate (/Second)                     28.0 Mbits; 3.5 MBytes
                                                   (170MB/340MB)
                                                   30.1 Mbits; 3.8 Mbytes
                                                   (245MB)
                                                   5.3 MBytes (540MB)
  Average Latency (ms)                             8.33 (170MB/340MB)
                                                   7.0 (245MB)
                                                   6.7 (540MB)
  Rotational Speed (RPMs)                          ???? (170MB/245MB/340MB)
                                                   6300 (540MB)
  # of Heads                                       ? (170MB/245MB/340MB)
                                                   7 (540MB)
  # of Platters                                    ? (170MB/245MB/340MB)
                                                   4 (540MB)
  Sectors per Track                                ??
  Cylinders                                        ???? (170MB/245MB/340MB)
                                                   2466 (540MB)
  Shock Rating (Gs): Operating                     ?? (170MB/245MB/340MB)
                                                   10 (540MB)
            Non-operating                          ?? (170MB/245MB/340MB)
                                                   70 (540MB)
  MTBF (Hours)                                     250,000 (170MB/340MB)
                                                   ???,??? (245MB)
                                                   300,000 (540MB)
  Auto Park                                        Yes
  Maximum # of Internal HD Drives                  3
  Optional HD Sizes Available:                     170MB (13ms)
                                                   340MB (13ms)
                                                   540MB (8.7ms)
                                                   1GB (8.6ms)
                                                   2GB (9.5ms)
  Maximum Internal HD Capacity                     6GB (3z)(4o)(5k)
 Standard Hard Disk Controller Type                SCSI-2 (SCSI Common Command
                                                   Set V4.B)
  Bus Master                                       Yes
   Adapter/Motherboard                             Motherboard
   Local Bus Implementation                        Yes
   Synchronous/Async Data Transfers                Yes
   16-bit Controller                               Standard
   32-bit Adapter With Cache                       Optional
  # of Devices Supported/Adapter                   7/15 (3r)
  # of Adapters Supported/System                   4
  Controller Data Transfer/Second
   Controller to Micro Channel                     8.3 MBytes
   Controller to SCSI Devices                      5.0 MBytes
  Interleave Factor                                1:1
 Internal Rewritable Optical Disk Drives           Optional
  Maximum Internal Drives Supported                1 (5k)
 Internal Optical CD-ROM Drives                    Optional
  Maximum Internal Drives Supported                1 (5k)

 EXTERNAL EXPANSION UNIT SUPPORT
 IBM 3510 (1-Bay)                                  Yes
 IBM 3511 (7-Bays)                                 Yes
 IBM 3514 (8-Bays, RAID-5, SCSI-2)                 Yes
 IBM 3515 (4-Bays, Streaming Data,
  RAID-0/RAID-1)                                   No

 TAPE STORAGE
 Internal Tape Drive Support
  3.5" Internal Tape Backup Unit                   Yes (9b)
  5.25" QIC SCSI Tape Drive                        No
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        No
 External Tape Drive Support
  5.25" QIC SCSI Tape Drive                        Yes
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        Yes


ΓòÉΓòÉΓòÉ 12.5.1.4. PS/2 Model 57-DE9/DEB/DED/DEG: Expansion/Operating System ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 57-DE9/DEB/DED/DEG header.

 DESCRIPTION                                       9557-DE9/DEB/DED/DEG
 EXPANSION
 Total Adapter Slots                               5
  # of Long/Short Slots                            5/0
  # of 8/16/32-bit Slots                           0/5/0 (3a)
  # of Slots with Video Extension                  1
 Available Slots                                   5
  Maximum RAM with Available Slots                 16MB (8q)

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        5.02 or later
 IBM OS/2                                          1.30.1 or later


ΓòÉΓòÉΓòÉ 12.5.1.5. PS/2 Model 57-DE9/DEB/DED/DEG: Keyboard/Security ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 57-DE9/DEB/DED/DEG header.

 DESCRIPTION                                       9557-DE9/DEB/DED/DEG
 KEYBOARD
 Select-a-Keyboard                                 (m)
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         10 (3 meters)

 SECURITY
 Vital Product Data (VPD) Enabled                  Yes (5m)
 C2 Security Enabled                               Yes (7j)
 LogicLock Security                                Yes (7j)
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Cable-Down Capability                             No
 Lockable Cable Cover                              No


ΓòÉΓòÉΓòÉ 12.5.1.6. PS/2 Model 57-DE9/DEB/DED/DEG: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 57-DE9/DEB/DED/DEG header.

 DESCRIPTION                                       9557-DE9/DEB/DED/DEG
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
  Orientation                                      Horizontal/Vertical (6y)
  Vertical-Mount Floor Stand                       Standard
 Dimensions: Height                                6.7"
        Width                                      17.3"
        Depth                                      15.5"
 Weight (lbs):                                     26.0

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              197
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Manual
 Amperage at:  90-137 VAC                          4.6
        180-265 VAC                                2.0
 Operating Range: Temperature                      50-95┬░ F
           Rel. Humidity                           8-85%
 Maximum Current Leakage (uA)                      <500
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  123
 Noise (Avg dB, Operating, 1m)                     50
    Classification                                 3D
 Power Management Support                          Yes
  System/Monitor                                   Monitor (7l)

 MISCELLANEOUS
 Software Included                                 Choice of DOS 5.02/Win 3.1,
                                                   DOS 6.1/Win 3.1, OS/2
                                                   2.00.1, or OS/2 2.1
 FCC Classification                                B
 UL Approval                                       UL 1950, 1st Edition
 CSA Approval                                      CSA22.2 No. 220-M1986
 NOM                                               I-171
 Warranty Period                                   3 Years
  On-site/Carry-in                                 On-site
  Countries Warranty Valid In                      USA/Canada
 BIOS Model/Submodel/Revision                      F8/38/04
 BIOS Date                                         29Jul93
 Date Announced                                    01Feb94
 Date Withdrawn                                    06/20/95


ΓòÉΓòÉΓòÉ 12.5.1.7. PS/2 Model 57-DE9/DEB/DED/DEG: Limitations ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 57-DE9/DEB/DED/DEG header.

 The following options and adapters are Not supported by this system.

     3118 Scanner
     3363 Optical (WORM) Disk Drive models A11, B01
     5.25" 360K External Diskette Drive Adapter/A (P/N 6450245/#8760)
     5.25" 1.2MB Internal Diskette Drive (P/N 6451006; replaced by 6451066)
     All memory adapters
     All SIMMs except 2MB/4MB/8MB 70ns
     CD-ROM Drive (P/N 6450845/#0845; replaced by 6451113/#1113)
     Image Adapter/A (P/N 07F4400/#4324; replaced by 06G8215/#0072)
     Image Adapter/A 1MB (P/N 44F9626/#0072; replaced by 06G8215/#0072), 3MB
      (P/N 69F9724/#0073; replaced by 06G8216/#0073), 3MB 6091 (P/N
      44F9621/#0074; replaced by 06G8217/#0074)


ΓòÉΓòÉΓòÉ 12.6. PS/2 Model M57 486SLC2 Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
IBM 486SLC2-based Ultimedia Model M57 systems. These are differentiated from
the "standard" Model 57 486SLC2 systems by the addition of multimedia-related
features.

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 50/25MHz Systems
 PS/2 Model M57-1BA/2BA

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 12.6.1. PS/2 Model M57-1BA/2BA Tech Specs ΓòÉΓòÉΓòÉ

The PS/2 Models M57-1BA and -2BA are identical except for the addition of an
ActionMedia II DVI card to the 2BA model.  Therefore both models will be
covered by this one document. Differences will be indicated by model number in
parentheses.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Jump directly to the PS/2 Model M57 486SLC2 Systems header.


ΓòÉΓòÉΓòÉ 12.6.1.1. PS/2 Model M57-1BA/2BA: Architecture/Memory ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the M57-1BA/2BA header.

 DESCRIPTION                                       9557-1BA/2BA
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    IBM 486SLC2 (2g)
 Clock-Doubling                                    Yes
 Clock Speed (MHz)                                 50/25
 Internal/External Cache                           Internal (4u)
  Cache Size                                       16K
 Instruction Set                                   32 bit
 Addressing                                        24 Bit
 I/O Channel Width                                 16 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
  DMA Burst Mode Supported                         ???
  24/32-bit DMA Controller                         24
 Upgradeable Processor Complex                     Yes
  Processor Upgrades Available                     75/25MHz IBM 486SLC3 (7g)
 Bus Masters Supported                             15
 Interleaved Memory                                Yes
 Matched Memory Cycle                              N/A (5i)
 Page Memory Logic                                 No (7a)

 MEMORY
 Standard (Motherboard)                            8MB (2h)
 Maximum (Motherboard)                             16MB
 Maximum (System)                                  16MB (2r)
 Total # of Motherboard SIMM Sockets               3
 # of Motherboard SIMM Sockets Available           2
 Standard Memory Speed (ns)                        70
 Memory Type                                       DRAM
  Memory Interleaving                              Yes
 Wait States: Motherboard                          0
        Adapter                                    N/A (8q)
 Memory Used: Motherboard                          2/4/8MB SIMMs (70ns)


ΓòÉΓòÉΓòÉ 12.6.1.2. PS/2 Model M57-1BA/2BA: Standard Features ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the M57-1BA/2BA header.

 DESCRIPTION                                       9557-1BA/2BA
 STANDARD FEATURES
 ROM Size                                          256K
 ROM Shadowing                                     Yes
 BIOS Extensions Stored on Disk                    Yes (5v)
 Setup & Diags Stored on Disk                      Yes (5v)
 Optional Math Coprocessor                         387SX (8m)
  Coprocessor Speed                                25 MHz
 Standard Graphics                                 XGA-2
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Motherboard
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
  Resolutions Supported                            640x480 64K Colors
                                                   800x600 64K Colors
                                                   1024x768 256 Colors
                                                   1280x1024 16 Colors
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 Maximum Graphics                                  XGA-2
 Enhanced Video Features                           Yes (2BA)
  Video Card Used                                  ActionMedia II Display
                                                   Adapter/A
  Digital Video Interactive (DVI)                  Yes
 Enhanced Audio Features
  Audio Card Used (Standard)                       M-Audio Capture and Playback
                                                   Adapter/A (2a)
  Audio Compression Supported                      Yes
  Audio Sampling Supported                         16K
  FM Quality Stereo Sound                          Yes
  Connected to Multimedia Panel                    Yes
 Multimedia Panel Features
  Volume Control                                   Yes
  Stereo Headphone Jack                            Yes
  Mono Microphone Jack                             Yes
  Enhanced Loudspeaker                             Yes
 RS232C Serial Ports                               2
  9/25-Pin                                         9-pin
  UART Chip Used                                   NS16550 Type 4
  Maximum Speed (bits/second)                      345,600
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
  IBM Mouse Included                               Yes
   Mouse Resolution                                Up to 200 DPI, programmable
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 SCSI port                                         Yes (5c)
  Internal/External Connectors                     Yes/Yes
  On Motherboard/Adapter                           Motherboard


ΓòÉΓòÉΓòÉ 12.6.1.3. PS/2 Model M57-1BA/2BA: Disk/Tape Storage ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the M57-1BA/2BA header.

 DESCRIPTION                                       9557-1BA/2BA
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     4
  # of 3.5"/5.25" Bays                             1/3 (6r)(6z)
  # of 3.5"/5.25" Bays Available                   0/1 (8l)
 Selectable Boot                                   Yes
  Bootable Physical Drives                         All
 Diskette Drives Standard                          1x2.88MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)(7t)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (j)(7t)
   Media Sensing                                   No
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      Optional (i)
   Media Sensing                                   No
  3.5" 2.88MB                                      Optional (i)
   Media Sensing                                   Yes
  3.5" Enhanced 2.88MB                             Optional (i)
   Media Sensing                                   Yes
   Electronic Lock/Eject                           Yes
  Internal Drives Supported                        3
  External Drives Supported                        1
  Maximum # Diskette Drives                        4 (4n)
 Hard Disk Drives Standard                         1x212MB
  Drive Type                                       SCSI
  Encoding Method                                  RLL
  Drive Form Factor                                3.5"
  Average Access Rate (ms)                         12
  Sector Buffer Size                               32K
  Data Transfer Rate (/Second)                     20.1 MBits
  Average Latency (ms)                             6.94
  Rotational Speed (RPMs)                          4320
  # of Heads                                       4
  # of Platters                                    2
  Sectors per Track                                44
  Cylinders                                        2009
  Shock Rating (Gs): Operating                     ??
            Non-operating                          ??
  MTBF (Hours)                                     ???,???
  Interleave Factor                                1:1
  Auto Park                                        Yes
  Maximum # of Internal HD Drives                  3
  Optional HD Sizes Available:                     170MB (13ms)
                                                   340MB (13ms)
                                                   540MB (8.7ms)
                                                   1GB (8.6ms)
                                                   2GB (9.5ms)
  Maximum Internal HD Capacity                     6GB (3z)(4o)(5k)
 Standard Hard Disk Controller Type                SCSI-2 (SCSI Common Command
                                                   Set V4.B)
  Bus Master                                       Yes
   Adapter/Motherboard                             Motherboard
   Local Bus Implementation                        Yes
   Synchronous/Async Data Transfers                Yes
   16-bit Controller                               Standard
   32-bit Adapter With Cache                       Optional
  # of Devices Supported/Adapter                   7/15 (3r)
  # of Adapters Supported/System                   4
  Controller Data Transfer/Second
   Controller to Micro Channel                     8.3 MBytes
   Controller to SCSI Devices                      5.0 MBytes
 Internal Rewritable Optical Disk Drive            Optional
  Maximum Internal Drives Supported                1 (5k)
 Internal Optical CD-ROM Drive                     Standard
  (Double-click here for specs)
  Maximum Internal Drives Supported                1 (5k)

 EXTERNAL EXPANSION UNIT SUPPORT
 IBM 3510 (1-Bay)                                  Yes
 IBM 3511 (7-Bays)                                 Yes
 IBM 3514 (8-Bays, RAID-5, SCSI-2)                 Yes
 IBM 3515 (4-Bays, Streaming Data,
  RAID-0/RAID-1)                                   No

 TAPE STORAGE
 Internal Tape Drive Support
  3.5" Internal Tape Backup Unit                   Yes (9b)
  5.25" QIC SCSI Tape Drive                        No
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        No
 External Tape Drive Support
  5.25" QIC SCSI Tape Drive                        Yes
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        Yes


ΓòÉΓòÉΓòÉ 12.6.1.4. PS/2 Model M57-1BA/2BA: Expansion/Operating System ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the M57-1BA/2BA header.

 DESCRIPTION                                       9557-1BA/2BA
 EXPANSION
 Total Adapter Slots                               5
  # of Long/Short Slots                            5/0
  # of 8/16/32-bit Slots                           0/5/0 (3a)
  # of Slots with Video Extension                  1
 Available Slots                                   3 (1BA)
                                                   2 (2BA)
  Maximum RAM with Available Slots                 16MB (8q)

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        5.0 or later (8r)
 IBM Japanese DOS                                  J5.0/V or later (8r)
 IBM OS/2                                          2.00.1 or later (8r)
 IBM Japanese OS/2                                 J2.0 or later
 IBM AIX PS/2                                      No


ΓòÉΓòÉΓòÉ 12.6.1.5. PS/2 Model M57-1BA/2BA: Keyboard/Security ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the M57-1BA/2BA header.

 DESCRIPTION                                       9557-1BA/2BA
 KEYBOARD
 122-Key Host-Connected Keyboard (6w)              Yes (8p)
 106-Key Japanese Keyboard                         Yes (8p)
 101-Key Enhanced Keyboard                         Yes (8p)
 84-Key Keyboard                                   Yes (8p)
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         10 (3 meters)

 SECURITY
 Vital Product Data (VPD) Enabled                  Yes (5m)
 C2 Security Enabled                               Yes (7j)
 LogicLock Security                                Yes (7j)
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Cable-Down Capability                             No
 Lockable Cable Cover                              No


ΓòÉΓòÉΓòÉ 12.6.1.6. PS/2 Model M57-1BA/2BA: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the M57-1BA/2BA header.

 DESCRIPTION                                       9557-1BA/2BA
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
  Orientation                                      Horizontal/Vertical (6y)
  Vertical-Mount Floor Stand                       Standard
 Dimensions: Height                                6.7"
        Width                                      17.3"
        Depth                                      15.5"
 Weight (lbs):                                     35.0

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              197
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Manual
 Amperage at:  90-137 VAC                          6.0
        180-265 VAC                                3.0
 Operating Range: Temperature                      50-95┬░ F
          Rel. Humidity                            8-85%
 Maximum Current Leakage (uA)                      <500
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  123
 Noise (Avg dB, Operating, 1m)                     50
    Classification                                 3D
 Power Management Support                          Yes
  System/Monitor                                   Monitor (7l)

 MISCELLANEOUS
 Software Included                                 (8r)
 FCC Classification                                B
 UL Approval                                       UL 1950, 1st Edition
 CSA Approval                                      CSA22.2 No. 220-M1986
 Warranty Period                                   3 Years
  Countries Warranty Valid In                      USA/Canada
 BIOS Model/Submodel/Revision                      F8/38/00
 BIOS Date                                         08/05/92
 Date Announced                                    09/21/92
 Date Withdrawn                                    04/14/95


ΓòÉΓòÉΓòÉ 12.6.1.7. PS/2 Model M57-1BA/2BA: Limitations ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model M57-1BA/2BA  header.

 The following options and adapters are Not supported by this system.

     3363 Optical (WORM) Disk Drive models A11, B01
     5.25" 360K External Diskette Drive Adapter/A (6450245/#8760)
     5.25" 1.2MB Internal Diskette Drive (6451006; replaced by 6451066)
     All memory adapters
     All SIMMs except 2MB/4MB/8MB 70ns
     CD-ROM Drive (6450845/#0845; replaced by 6451113/#1113)
     Image Adapter/A (07F4400/#4324; replaced by 06G8215/#0072)
     Image Adapter/A 1MB (44F9626/#0072; replaced by 06G8215/#0072), 3MB
      (69F9724/#0073; replaced by 06G8216/#0073), 3MB 6091 (44F9621/#0074;
      replaced by 06G8217/#0074)


ΓòÉΓòÉΓòÉ 12.7. PS/2 Model M57 486SLC3 Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
IBM 486SLC3-based Ultimedia Model M57 systems. These are differentiated from
the "standard" Model 57 486SLC3 systems by the addition of multimedia-related
features.

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and Enter keys, to select the section to which you wish to jump, below:

 75/25MHz Systems
 PS/2 Model M57-6EB/6EG/7EB/7EG

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 12.7.1. PS/2 Model M57-6EB/6EG/7EB/7EG Tech Specs ΓòÉΓòÉΓòÉ

The PS/2 Models M57-6EB/6EG/7EB/7EG are identical except for the hard disk
drive used, and choice of operating system included.  Therefore all models will
be covered by this one document. Differences will be indicated by model number
in parentheses.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Jump directly to the PS/2 Model M57 486SLC3 Systems header.


ΓòÉΓòÉΓòÉ 12.7.1.1. PS/2 Model M57-6EB/6EG/7EB/7EG: Architecture/Memory ΓòÉΓòÉΓòÉ

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 Sections
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 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the M57-6EB/6EG/7EB/7EG header.

 DESCRIPTION                                       9557-6EB/6EG/7EB/7EG
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    IBM 486SLC3 (7g)
 Clock-Doubling                                    Yes
 Clock Speed (MHz)                                 50/25
 Internal/External Cache                           Internal (4u)
  Cache Size                                       16K
 Instruction Set                                   32 bit
 Addressing                                        24 Bit
 I/O Channel Width                                 16 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          20 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
  DMA Burst Mode Supported                         ???
  24/32-bit DMA Controller                         24
 Upgradeable Processor Complex                     Yes
  Processor Upgrades Available                     None yet
 Bus Masters Supported                             15
 Interleaved Memory                                Yes
 Matched Memory Cycle                              N/A (5i)
 Page Memory Logic                                 No (7a)

 MEMORY
 Standard (Motherboard)                            8MB (2h)
 Maximum (Motherboard)                             16MB
 Maximum (System)                                  16MB (2r)
 Total # of Motherboard SIMM Sockets               3
 # of Motherboard SIMM Sockets Available           2
 Standard Memory Speed (ns)                        70
 Memory Type                                       DRAM
  Memory Interleaving                              Yes
 Wait States: Motherboard                          0
        Adapter                                    N/A (8q)
 Memory Used: Motherboard                          2/4/8MB SIMMs (70ns)


ΓòÉΓòÉΓòÉ 12.7.1.2. PS/2 Model M57-6EB/6EG/7EB/7EG: Standard Features ΓòÉΓòÉΓòÉ

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 Sections
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 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the M57-6EB/6EG/7EB/7EG header.

 DESCRIPTION                                       9557-6EB/6EG/7EB/7EG
 STANDARD FEATURES
 ROM Size                                          256K
 ROM Shadowing                                     Yes
 SurePath BIOS Flash ROM                           Yes (7p)
 BIOS Extensions Stored on Disk                    Yes (5v)
 Setup & Diags Stored on Disk                      Yes (5v)
 Optional Math Coprocessor                         387SX (8m)
  Coprocessor Speed                                25 MHz
 Standard Graphics                                 XGA-2
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Motherboard
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
  Resolutions Supported                            640x480 64K Colors
                                                   800x600 64K Colors
                                                   1024x768 256 Colors
                                                   1280x1024 16 Colors
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 Display Power Management Support                  Yes (7l)
 Maximum Graphics                                  XGA-2
 Enhanced Audio Features
  Audio Card Used (Standard)                       IBM Audiovation Adapter/A
                                                   (2a)
  (Double-click here for specs)
  Speakers Included                                Yes
  Connected to Multimedia Panel                    Yes
  Device Drivers Included                          Windows 3.1 (6EB/6EG)
                                                   OS/2 2.x (7EB/7EG)
 Multimedia Panel Features
  Volume Control                                   Yes
  Stereo Headphone Jack                            Yes
  Mono Microphone Jack                             Yes
  Enhanced Loudspeaker                             Yes
 RS232C Serial Ports                               2
  9/25-Pin                                         9-pin
  UART Chip Used                                   NS16550 Type 4
  Maximum Speed (bits/second)                      345,600
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
  IBM Mouse Included                               (m)
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 SCSI port                                         Yes (5c)
  Internal/External Connectors                     Yes/Yes
  On Motherboard/Adapter                           Motherboard


ΓòÉΓòÉΓòÉ 12.7.1.3. PS/2 Model M57-6EB/6EG/7EB/7EG: Disk/Tape Storage ΓòÉΓòÉΓòÉ

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 Limitations

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 DESCRIPTION                                       9557-6EB/6EG/7EB/7EG
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     4
  # of 3.5"/5.25" Bays                             2/2
  # of 3.5"/5.25" Bays Available                   0/1
 Selectable Boot                                   Yes
  Bootable Physical Drives                         All
 Diskette Drives Standard                          1x2.88MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)(7t)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (j)(7t)
   Media Sensing                                   Yes
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      Optional (i)
   Media Sensing                                   No
  3.5" 2.88MB                                      Optional (i)
   Media Sensing                                   Yes
  3.5" Enhanced 2.88MB                             Optional (i)
   Media Sensing                                   Yes
   Electronic Lock/Eject                           Yes
  Internal Drives Supported                        2
  External Drives Supported                        1
  Maximum # Diskette Drives                        3
 Hard Disk Drives Standard                         1x245MB (6EB/7EB)
                                                   1x540MB (6EG/7EG)
  Drive Type                                       SCSI
  Encoding Method                                  RLL
  Drive Form Factor                                3.5"
  Average Access Rate (ms)                         16 (245MB)
                                                   10 (540MB)
  Sector Buffer Size                               ???K (245MB)
                                                   256K (540MB)
  Data Transfer Rate (/Second)                     30.1 Mbits; 3.8 Mbytes
                                                   (245MB)
                                                   5.3 MBytes (540MB)
  Average Latency (ms)                             7.0 (245MB)
                                                   6.7 (540MB)
  Rotational Speed (RPMs)                          ???? (245MB)
                                                   6300 (540MB)
  # of Heads                                       ? (245MB)
                                                   7 (540MB)
  # of Platters                                    ? (245MB)
                                                   4 (540MB)
  Sectors per Track                                ??
  Cylinders                                        ???? (245MB)
                                                   2466 (540MB)
  Shock Rating (Gs): Operating                     ?? (245MB)
                                                   10 (540MB)
            Non-operating                          ?? (245MB)
                                                   70 (540MB)
  MTBF (Hours)                                     ???,??? (245MB)
                                                   300,000 (540MB)
  Auto Park                                        Yes
  Maximum # of Internal HD Drives                  2
  Optional HD Sizes Available:                     170MB (13ms)
                                                   340MB (13ms)
                                                   540MB (8.7ms)
                                                   1GB (8.6ms)
                                                   2GB (9.5ms)
  Maximum Internal HD Capacity                     4GB (3z)(4o)(5k)
 Standard Hard Disk Controller Type                SCSI-2 (SCSI Common Command
                                                   Set V4.B)
  Bus Master                                       Yes
   Adapter/Motherboard                             Motherboard
   Local Bus Implementation                        Yes
   Synchronous/Async Data Transfers                Yes
   16-bit Controller                               Standard
   32-bit Adapter With Cache                       Optional
  # of Devices Supported/Adapter                   7/15 (3r)
  # of Adapters Supported/System                   4
  Controller Data Transfer/Second
   Controller to Micro Channel                     8.3 MBytes
   Controller to SCSI Devices                      5.0 MBytes
  Interleave Factor                                1:1
 Internal Rewritable Optical Disk Drives           Optional
  Maximum Internal Drives Supported                1 (5k)
 Internal Optical CD-ROM Drives                    Standard
  (Double-click here for specs)
  Maximum Internal Drives Supported                1 (5k)

 EXTERNAL EXPANSION UNIT SUPPORT
 IBM 3510 (1-Bay)                                  Yes
 IBM 3511 (7-Bays)                                 Yes
 IBM 3514 (8-Bays, RAID-5, SCSI-2)                 Yes
 IBM 3515 (4-Bays, Streaming Data,
  RAID-0/RAID-1)                                   No

 TAPE STORAGE
 Internal Tape Drive Support
  3.5" Internal Tape Backup Unit                   Yes (9b)
  5.25" QIC SCSI Tape Drive                        No
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        No
 External Tape Drive Support
  5.25" QIC SCSI Tape Drive                        Yes
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        Yes


ΓòÉΓòÉΓòÉ 12.7.1.4. PS/2 Model M57-6EB/6EG/7EB/7EG: Expansion/Operating System ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the M57-6EB/6EG/7EB/7EG header.

 DESCRIPTION                                       9557-6EB/6EG/7EB/7EG
 EXPANSION
 Total Adapter Slots                               5
  # of Long/Short Slots                            5/0
  # of 8/16/32-bit Slots                           0/5/0 (3a)
  # of Slots with Video Extension                  1
 Available Slots                                   4
  Maximum RAM with Available Slots                 16MB (8q)

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        5.02 or later
 IBM OS/2                                          1.30.1 or later


ΓòÉΓòÉΓòÉ 12.7.1.5. PS/2 Model M57-6EB/6EG/7EB/7EG: Keyboard/Security ΓòÉΓòÉΓòÉ

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 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the M57-6EB/6EG/7EB/7EG header.

 DESCRIPTION                                       9557-6EB/6EG/7EB/7EG
 KEYBOARD
 Select-a-Keyboard                                 (m)
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         10 (3 meters)

 SECURITY
 Vital Product Data (VPD) Enabled                  Yes (5m)
 C2 Security Enabled                               Yes (7j)
 LogicLock Security                                Yes (7j)
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Cable-Down Capability                             No
 Lockable Cable Cover                              No


ΓòÉΓòÉΓòÉ 12.7.1.6. PS/2 Model M57-6EB/6EG/7EB/7EG: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

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 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the M57-6EB/6EG/7EB/7EG header.

 DESCRIPTION                                       9557-6EB/6EG/7EB/7EG
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
  Orientation                                      Horizontal/Vertical (6y)
  Vertical-Mount Floor Stand                       Standard
 Dimensions: Height                                6.7"
        Width                                      17.3"
        Depth                                      15.5"
 Weight (lbs):                                     26.0

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              197
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Manual
 Amperage at:  90-137 VAC                          4.6
        180-265 VAC                                2.0
 Operating Range: Temperature                      50-95┬░ F
           Rel. Humidity                           8-85%
 Maximum Current Leakage (uA)                      <500
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  123
 Noise (Avg dB, Operating, 1m)                     50
    Classification                                 3D
 Power Management Support                          Yes
  System/Monitor                                   Monitor (7l)

 MISCELLANEOUS
 Software Included                                 DOS 6.1/Win 3.1,
                                                   Talk-To-Plus, Monologue,
                                                   Band-in-a-Box (6EB/6EG)
                                                   OS/2 2.1, Talk-To-Plus,
                                                   Monologue, Band-in-a-Box
                                                   (7EB/7EG)
 FCC Classification                                B
 ISO Approval                                      9241 Part 3
 Multimedia PC (MPC) Certified                     MPC-2
 UL Approval                                       UL 1950, 1st Edition
 CSA Approval                                      CSA22.2 No. 220-M1986
 NOM                                               I-171
 Warranty Period                                   3 Years
  On-site/Carry-in                                 On-site
  Countries Warranty Valid In                      USA/Canada
 BIOS Model/Submodel/Revision                      F8/38/04
 BIOS Date                                         29Jul93
 Date Announced                                    01Feb94
 Date Withdrawn                                    06/20/95


ΓòÉΓòÉΓòÉ 12.7.1.7. PS/2 Model M57-6EB/6EG/7EB/7EG: Limitations ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model M57-6EB/6EG/7EB/7EG header.

 The following options and adapters are Not supported by this system.

     3118 Scanner
     3363 Optical (WORM) Disk Drive models A11, B01
     5.25" 360K External Diskette Drive Adapter/A (P/N 6450245/#8760)
     5.25" 1.2MB Internal Diskette Drive (P/N 6451006; replaced by 6451066)
     All memory adapters
     All SIMMs except 2MB/4MB/8MB 70ns
     CD-ROM Drive (P/N 6450845/#0845; replaced by 6451113/#1113)
     Image Adapter/A (P/N 07F4400/#4324; replaced by 06G8215/#0072)
     Image Adapter/A 1MB (P/N 44F9626/#0072; replaced by 06G8215/#0072), 3MB
      (P/N 69F9724/#0073; replaced by 06G8216/#0073), 3MB 6091 (P/N
      44F9621/#0074; replaced by 06G8217/#0074)


ΓòÉΓòÉΓòÉ 12.8. PS/2 Model 76 486SX Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
486SX-based Model 76 systems.

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 33MHz Systems
 PS/2 Model 76-0U6/0UA/DU6/DUA/KU6/KUA/QU6/QUA

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 12.8.1. PS/2 Model 76-0U6/0UA/DU6/DUA/KU6/KUA/QU6/QUA Tech Specs ΓòÉΓòÉΓòÉ

The PS/2 Models 76-0U6/0UA/DU6/DUA/KU6/KUA/QU6/QUA are identical except for the
hard disk drive used, and the choice of operating system included.  Therefore
all models will be covered by this one document. Differences will be indicated
by model number in parentheses.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Jump directly to the PS/2 Model 76 486SX Systems header.


ΓòÉΓòÉΓòÉ 12.8.1.1. PS/2 Model 76-0U6/0UA/DU6/DUA/KU6/KUA/QU6/QUA: Architecture/Memory ΓòÉΓòÉΓòÉ

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and Enter keys, to select the section to which you wish to jump, below:

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 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 76-0U6/0UA/DU6/DUA/KU6/KUA/QU6/QUA header.

 DESCRIPTION
                                                   9576-0U6/0UA/DU6/DUA/KU6/KUA/QU6/QUA
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    Intel 486SX
 Clock-Doubling                                    Yes
 Clock Speed (MHz)                                 33
 Internal/External Cache                           Internal (4u)
  Cache Size                                       8K
 Instruction Set                                   32 bit
 Addressing                                        32 bit
 I/O Channel Width                                 32 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          40 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
  DMA Burst Mode Supported                         ???
  24/32-bit DMA Controller                         24
 Upgradeable Processor                             Yes
  Processor Complex/OverDrive Socket               OverDrive
  Processor Upgrades Available                     66/33MHz 486DX2
 Bus Masters Supported                             15
 Interleaved Memory                                Yes
 Matched Memory Cycle                              No (5i)
 Page Memory Logic                                 Yes

 MEMORY
 Standard (Motherboard)                            8MB (2h)
 Maximum (Motherboard)                             32MB
 Maximum (System)                                  32MB (2r)
 Total # of Motherboard SIMM Sockets               4
 # of Motherboard SIMM Sockets Available           3
 Standard Memory Speed (ns)                        70
 Memory Type                                       DRAM
  Memory Interleaving                              Yes
 Wait States: Motherboard                          0
        Adapter                                    N/A (8q)
 Memory Used: Motherboard                          2/4/8MB SIMMs (70ns)


ΓòÉΓòÉΓòÉ 12.8.1.2. PS/2 Model 76-0U6/0UA/DU6/DUA/KU6/KUA/QU6/QUA: Standard Features ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

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 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 76-0U6/0UA/DU6/DUA/KU6/KUA/QU6/QUA header.

 DESCRIPTION
                                                   9576-0U6/0UA/DU6/DUA/KU6/KUA/QU6/QUA
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 BIOS Extensions Stored on Disk                    Yes (5v)
 Setup & Diags Stored on Disk                      Yes (5v)
 Optional Math Coprocessor                         487SX
  Coprocessor Speed                                33 MHz
 Standard Graphics                                 XGA-2
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Adapter
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
  Resolutions Supported                            640x480 64K Colors
                                                   800x600 64K Colors
                                                   1024x768 256 Colors
                                                   1280x1024 16 Colors
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 Maximum Graphics                                  XGA-2
 RS232C Serial Ports                               2
  9/25-Pin                                         9-pin
  UART Chip Used                                   NS16550 Type 4
  Maximum Speed (bits/second)                      345,600
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
  IBM Mouse Included                               Yes
   Mouse Resolution                                Up to 200 DPI, programmable
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 SCSI port                                         Yes (5c)
  Internal/External Connectors                     Yes/Yes
  On Motherboard/Adapter                           Motherboard


ΓòÉΓòÉΓòÉ 12.8.1.3. PS/2 Model 76-0U6/0UA/DU6/DUA/KU6/KUA/QU6/QUA: Disk/Tape Storage ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 76-0U6/0UA/DU6/DUA/KU6/KUA/QU6/QUA header.

 DESCRIPTION
                                                   9576-0U6/0UA/DU6/DUA/KU6/KUA/QU6/QUA
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     3
  # of 3.5"/5.25" Bays                             2/1
  # of 3.5"/5.25" Bays Available                   0/1
 Selectable Boot                                   Yes
  Bootable Physical Drives                         All
 Diskette Drives Standard                          1x2.88MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (i)
   Media Sensing                                   No
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      Yes
   Media Sensing                                   No
  3.5" 2.88MB                                      Optional (g)
   Media Sensing                                   No
  3.5" Enhanced 2.88MB                             Optional (i)
   Media Sensing                                   Yes
   Electronic Lock/Eject                           Yes
  Internal Drives Supported                        2
  External Drives Supported                        1
  Maximum # Diskette Drives                        3
 Hard Disk Drives Standard                         1x104MB (0U6/DU6/KU6/QU6)
                                                   1x208MB/212MB
                                                   (0UA/DUA/KUA/QUA) (6h)
  Drive Type                                       SCSI
  Encoding Method                                  RLL
  Drive Form Factor                                3.5"
  Average Access Rate (ms)                         12
  Sector Buffer Size                               32K
  Data Transfer Rate (/Second)                     20.1 MBits
  Average Latency (ms)                             6.94
  Rotational Speed (RPMs)                          4320
  # of Heads                                       2 (104MB)
                                                   4 (208MB/212MB)
  # of Platters                                    1 (104MB)
                                                   2 (208MB/212MB)
  Sectors per Track                                44
  Cylinders                                        2009
  Shock Rating (Gs): Operating                     ??
            Non-operating                          ??
  MTBF (Hours)                                     ???,???
  Auto Park                                        Yes
  Maximum # of Internal HD Drives                  2
  Optional HD Sizes Available:                     170MB (13ms)
                                                   340MB (13ms)
                                                   540MB (8.7ms)
                                                   1GB (8.6ms)
                                                   2GB (9.5ms)
  Maximum Internal HD Capacity                     4GB (3z)(4o)(5k)
 Standard Hard Disk Controller Type                SCSI
  Bus Master                                       Yes
   16-bit Adapter                                  Optional
   32-bit Adapter with Cache                       Standard
  # of Devices Supported/Adapter                   7/15  (3r)
  # of Adapters Supported/System                   4
  Controller Data Transfer/second
   Controller to Micro Channel                     16.6 MBytes
   Controller to SCSI Devices                      5.0 MBytes
  Interleave Factor                                1:1
 Internal Rewritable Optical Disk Drives           Optional
  Maximum Internal Drives Supported                1 (5k)
 Internal Optical CD-ROM Drives                    Optional
  Maximum Internal Drives Supported                1 (5k)

 EXTERNAL EXPANSION UNIT SUPPORT
 IBM 3510 (1-Bay)                                  Yes
 IBM 3511 (7-Bays)                                 Yes
 IBM 3514 (8-Bays, RAID-5, SCSI-2)                 Yes
 IBM 3515 (4-Bays, Streaming Data,
  RAID-0/RAID-1)                                   No

 TAPE STORAGE
 Internal Tape Drive Support
  3.5" Internal Tape Backup Unit                   Yes (9b)
  5.25" QIC SCSI Tape Drive                        No
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        No
 External Tape Drive Support
  5.25" QIC SCSI Tape Drive                        Yes
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        Yes


ΓòÉΓòÉΓòÉ 12.8.1.4. PS/2 Model 76-0U6/0UA/DU6/DUA/KU6/KUA/QU6/QUA: Expansion/Operating System ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 76-0U6/0UA/DU6/DUA/KU6/KUA/QU6/QUA header.

 DESCRIPTION
                                                   9576-0U6/0UA/DU6/DUA/KU6/KUA/QU6/QUA
 EXPANSION
 Total Adapter Slots                               3
  # of Long/Short Slots                            3/0
  # of 8/16/32-bit Slots                           0/0/3 (3a)
  # of Slots with Video Extension                  1
 Available Slots                                   2

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        5.00.1 or later
 IBM OS/2                                          2.00.1 (ServicePak Level
                                                   6050) or later
 IBM AIX PS/2                                      1.3.0 or later
 SCO XENIX                                         2.3.4 or later
 SCO UNIX 3.2                                      V.4 or later


ΓòÉΓòÉΓòÉ 12.8.1.5. PS/2 Model 76-0U6/0UA/DU6/DUA/KU6/KUA/QU6/QUA: Keyboard/Security ΓòÉΓòÉΓòÉ

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and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 76-0U6/0UA/DU6/DUA/KU6/KUA/QU6/QUA header.

 DESCRIPTION
                                                   9576-0U6/0UA/DU6/DUA/KU6/KUA/QU6/QUA
 KEYBOARD
 122-Key Host-Connected Keyboard (6w)              Yes (8p)
 106-Key Japanese Keyboard                         No
 101-Key Enhanced Keyboard                         Yes (8p)
 84-Key Keyboard                                   Yes (8p)
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         6 (1.8 meters)

 SECURITY
 Vital Product Data (VPD) Enabled                  Yes (5m)
 C2 Security Enabled                               Yes (7j)
 LogicLock Security                                Yes (7j)
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Cable-Down Capability                             Yes
 Lockable Cable Cover                              Optional


ΓòÉΓòÉΓòÉ 12.8.1.6. PS/2 Model 76-0U6/0UA/DU6/DUA/KU6/KUA/QU6/QUA: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 76-0U6/0UA/DU6/DUA/KU6/KUA/QU6/QUA header.

 DESCRIPTION
                                                   9576-0U6/0UA/DU6/DUA/KU6/KUA/QU6/QUA
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
  Orientation                                      Horizontal (6x)
  Vertical-Mount Floor Stand                       Optional
 Dimensions: Height                                4.5"
        Width                                      14.2"
        Depth                                      15.6"
 Weight (lbs):                                     26.0

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              118
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-137 VAC                          3.5
        180-265 VAC                                1.75
 Operating Range: Temperature                      50-95┬░ F
           Rel. Humidity                           8-85%
 Maximum Current Leakage (uA)                      <500
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  199
 Noise (Avg dB, Operating, 1m)                     50
    Classification                                 3D

 MISCELLANEOUS
 Software Included                                 OS/2 2.00.1 (0U6/0UA)
                                                   DOS 5.02/Win 3.1 (QU6/QUA)
                                                   OS/2 2.1 (KU6/KUA)
                                                   Choice of DOS 5.02/Win 3.1,
                                                   DOS 6.1/Win 3.1, OS/2
                                                   2.00.1, or OS/2 2.1
                                                   (DU6/DUA)
 FCC Classification                                B
 UL Approval                                       UL 1950, 1st Edition
 CSA Approval                                      CSA22.2 No. 220-M1986
 Warranty Period                                   3 Years
  On-site/Carry-in                                 On-site
  Int'l Traveler's Warranty Service                No
  Countries Warranty Valid In                      N/A
 BIOS Model/Submodel/Revision                      F8/41/03
 BIOS Date                                         08/03/92
 Date Announced                                    09/21/92 (0U6/0UA)
                                                   05/04/93 (QU6/QUA)
                                                   05/25/93 (KU6/KUA)
                                                   07/13/93 (DU6/DUA)
 Date Withdrawn                                    07/26/93 (0U6/0UA)
                                                   08/16/93 (KU6/KUA/QU6/QUA)
                                                   04/14/95 (DU6/DUA)


ΓòÉΓòÉΓòÉ 12.8.1.7. PS/2 Model 76-0U6/0UA/DU6/DUA/KU6/KUA/QU6/QUA: Limitations ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 76-0U6/0UA/DU6/DUA/KU6/KUA/QU6/QUA header.

 The following options and adapters are Not supported by this system.

     3363 Optical (WORM) Disk Drive models A11, B01
     5.25" 360K External Diskette Drive Adapter/A (6450245/#8760)
     5.25" 1.2MB Internal Diskette Drive (6451006; replaced by 6451066)
     All memory adapters
     All SIMMs except 2MB/4MB/8MB 70ns
     ARTIC PortMaster Adapter/A (53F2601/53F2604/53F2607) and options
     CD-ROM Drive (6450845/#0845; replaced by 6451113/#1113)
     Image Adapter/A (07F4400/#4324; replaced by 06G8215/#0072)
     Image Adapter/A 1MB (44F9626/#0072; replaced by 06G8215/#0072), 3MB
      (69F9724/#0073; replaced by 06G8216/#0073), 3MB 6091 (44F9621/#0074;
      replaced by 06G8217/#0074)


ΓòÉΓòÉΓòÉ 12.9. PS/2 Model 76i 486SX Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
486SX-based Model 76i systems.

Note:  This model has been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 33MHz Systems
 PS/2 Models 9576-AU9/AUB

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 12.9.1. PS/2 Model 76i-AU9/AUB Tech Specs ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
PS/2 Models 76i -AU9 and -AUB systems.  They are identical except for the hard
disk drive used.  Therefore both models will be covered by this one document.
Differences will be indicated by model number in parentheses.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Jump directly to the PS/2 Model 76i 486SX Systems header.


ΓòÉΓòÉΓòÉ 12.9.1.1. PS/2 Model 76i-AU9/AUB: Architecture/Memory ΓòÉΓòÉΓòÉ

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and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 9576-AU9/AUB header.

 DESCRIPTION                                       9576-AU9/AUB
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    Intel 486SX
 Uses 3.3 Volt Technology                          No
 Clock Multiplying                                 No
 Clock Speed (MHz)
  Internal                                         33
  External                                         33
 Internal/External Cache                           (4u)
  Internal Cache Size                              8K
  External Cache Size Standard                     0K
  External Cache Size Maximum                      0K
 Instruction Set                                   32 bit
 Addressing                                        32 bit
 I/O Channel Width                                 32 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          40 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      8 (4m)
  DMA Burst Mode Supported                         Yes
  24/32-bit DMA Controller                         24
 Upgradeable Processor                             Yes
  Processor Complex/OverDrive Socket               OverDrive
  Processor Upgrades Available                     486DX2-66
 Bus Masters Supported                             15
 Page Memory Logic                                 Yes

 MEMORY
 Standard (Motherboard)                            8MB DRAM (2h)
 Maximum (System)                                  64MB DRAM or ECC (2r)(8q)
 Total # of Motherboard SIMM Sockets               4
 # of Motherboard SIMM Sockets Available           3
 Standard Memory Speed (ns)                        70
 Memory Type                                       DRAM
  Memory Interleaving                              No
 Wait States:                                      0-2
 Memory Used:                                      4/8/16MB DRAM SIMMs (70ns)
                                                   (8q)
                                                   8/16MB ECC SIMMs (70ns) (8q)


ΓòÉΓòÉΓòÉ 12.9.1.2. PS/2 Model 76i-AU9/AUB: Standard Features ΓòÉΓòÉΓòÉ

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and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 9576-AU9/AUB header.

 DESCRIPTION                                       9576-AU9/AUB
 STANDARD FEATURES
 BIOS                                              SurePath
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 BIOS Extensions Stored on Disk                    Yes (5v)
 Setup & Diags Stored on Disk                      Yes (5v)
 Optional Math Coprocessor                         Yes
  Coprocessor Speed (MHz)                          33
 Standard Graphics                                 Enhanced VESA local Bus SVGA
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Motherboard
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
    Maximum Video Memory                           2MB
  Video Chipset                                    S3 928
  Resolutions Supported with Standard              640x480x16M Colors
   1MB DRAM                                        800x600x64K Colors
                                                   1024x768x256 Colors
                                                   1280x1024x16 Colors
  MediaBurst Full-Screen Video Playback            Optional
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 RS232C Serial Ports                               2
  9/25-Pin                                         9-pin
  UART Chip Used                                   NS16550 Type 4
  Maximum Speed (bits/second)                      345,600
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
  IBM Mouse Included                               Yes, with all Non-Trackpoint
                                                   II Keyboards
   Mouse Resolution                                Up to 400 DPI, programmable
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 SCSI port                                         Requires optional adapter


ΓòÉΓòÉΓòÉ 12.9.1.3. PS/2 Model 76i-AU9/AUB: Disk/Tape Storage ΓòÉΓòÉΓòÉ

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and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 9576-AU9/AUB header.

 DESCRIPTION                                       9576-AU9/AUB
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     3
  # of 3.5"/5.25" Bays                             1/2
  # of 3.5"/5.25" Bays Available                   0/1
 Selectable Boot                                   Yes
  Bootable Physical Drives                         All
 Diskette Drives Standard                          1 x 2.88MB
 Optional Diskette Drives
  3.5" Enhanced 2.88MB                             Yes
   Media Sensing                                   Yes
   Electronic Lock/Eject                           Yes
  Internal Drives Supported                        3
  External Drives Supported                        1
  Maximum # Diskette Drives                        3
 Hard Disk Drives Standard                         170MB (AU9)
                                                   270MB (AUB)
  Standard Interface                               IDE
  Bus Interface                                    RLL
  Drive Form Factor                                3.5"
  Average Access Rate (ms)                         13 (170MB)
                                                   ?? (270MB)
  Sector Buffer Size                               ??
  Data Transfer Rate (/Second)                     ??
  Average Latency (ms)                             ??
  Rotational Speed (RPMs)                          ??
  # of Heads                                       14 (170MB)
                                                   ?? (270MB)
  # of Platters                                    ??
  Sectors per Track                                40 (170MB)
                                                   ?? (270MB)
  Cylinders                                        944 (170MB)
                                                   ?? (270MB)
  Shock Rating (Gs): Operating                     ??
            Non-operating                          ??
  MTBF (Hours)                                     ??
  Auto Park                                        Yes
  Interleave Factor                                1:1
  Maximum # of Internal HD Drives                  2
 Standard Hard Disk Controller Type                EIDE
  Bus Master                                       Yes
   16-bit Adapter                                  ??
   32-bit Adapter                                  ??
  # of Devices Supported/Adapter                   4
  # of Adapters Supported/System                   1
  Controller Data Transfer/second                  ??
   Controller to Micro Channel                     ??

 TAPE STORAGE
 Internal Tape Drive Support                       Yes
  3.5" Tape Drives                                 Yes
  5.25" Tape Drives                                Yes
 External Tape Drive Support                       Yes
  SCSI Tape Drives                                 Yes (with optional SCSI
                                                   adapter)
  Parallel Tape Drives                             Yes


ΓòÉΓòÉΓòÉ 12.9.1.4. PS/2 Model 76i-AU9/AUB: Expansion/Operating System ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 9576-AU9/AUB header.

 DESCRIPTION                                       9576-AU9/AUB
 EXPANSION
 Total Adapter Slots                               3
  # of Long/Short Slots                            3/0
  # of 8/16/32-bit Slots                           0/0/3 (3a)
  # of Slots with Video Extension                  1
 Available Slots                                   3

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        5.02, or later
 IBM OS/2                                          1.30.1, or later
 IBM AIX PS/2                                      1.3.0, or later


ΓòÉΓòÉΓòÉ 12.9.1.5. PS/2 Model 76i-AU9/AUB: Keyboard/Security ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 9576-AU9/AUB header.

 DESCRIPTION                                       9576-AU9/AUB
 KEYBOARD
 122-Key Host Connected Keyboard (6w)              Yes (8p)
 106-Key Enhanced Keyboard (Japanese)              Yes (8p)
 102-Key Enhanced Keyboard (LA Spanish)            Yes (8p)
 101-Key Enhanced Keyboard                         Yes (8p)
 101-Key Quiet Touch Keyboard                      Yes (8p)
 101-Key Enhanced Keyboard With TrackPoint II      Yes (8p)
 84-Key Quiet Touch With TrackPoint II             Yes (8p)
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         7.5 (Default Keyboard)

 SECURITY
 Vital Product Data (VPD) Enabled                  Yes (5m)
 Cable/Bolt Down Capability                        Yes
 Lockable Cable Cover With Key Lock                Yes
 Tamper Evident Covers                             Yes
 Power on Password                                 Yes
 Privileged Access Password                        Yes
 Keyboard Password                                 Yes (provided by operating
                                                   system)
 Secure IPL source                                 Yes
 Secure Configuration                              Yes
 Secure Access Openings                            Yes
 Security Cable Cover for I/O cables               Optional
 Secured removable media via 2.88MB
   Electronic Eject Diskette Drive                 Optional


ΓòÉΓòÉΓòÉ 12.9.1.6. PS/2 Model 76i-AU9/AUB: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

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and Enter keys, to select the section to which you wish to jump, below:

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 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 9576-AU9/AUB header.

 DESCRIPTION                                       9576-AU9/AUB
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
  Orientation                                      Horizontal/Vertical (6y)
  Vertical-Mount Floor Stand                       Optional
 Dimensions: Height                                4.5"
        Width                                      14.2"
        Depth                                      15.6"
 Weight (lbs):                                     26.0

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              118
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-137 VAC                          3.5
        180-265 VAC                                1.75
 Operating Range: Temperature                      50-95┬░ F
           Rel. Humidity                           8-85%
 Maximum Current Leakage (uA)                      <500 ??
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  199
 Noise (Avg dB, Operating, 1m)                     5.0
    Classification                                 ??

 MISCELLANEOUS
 Software Choices                                  IBM PC DOS 5.02 and Windows
                                                   3.1,
                                                   IBM PC DOS 6.1 and Windows
                                                   3.1,
                                                   IBM PC DOS 6.3 and Windows
                                                   3.11,
                                                   IBM OS/2 2.1, or
                                                   IBM OS/2 2.11
 FCC Classification                                B
 UL Approval                                       UL 1950, 1st Edition
 CSA Approval                                      CSA22.2 No. 950
 Warranty Period                                   3 Years
  On-site/Carry-in                                 On-site
  Int'l Traveler's Warranty Service                No
  Countries Warranty Valid In                      N/A
 BIOS Model/Submodel/Revision                      ??/??/??
 BIOS Date                                         ??????
 Date Announced                                    14Jun94
 Date Withdrawn                                    13Nov95


ΓòÉΓòÉΓòÉ 12.9.1.7. PS/2 Model 76i-AU9/AUB: Limitations ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 9576-AU9/AUB header.

     The MediaBurst Movie Adapter option and the 2MB video memory upgrade
      option are mutually exclusive.
 The following Micro Channel adapters, option and cables are NOT supported by
 the IBM Personal System/2 76i/77i:

     IBM PS/2 8514 Display Adapter/A (F/C 4054)(P/N 1887972)
     IBM PS/2 Micro Channel SCSI Adapter (F/C 1005)(P/N 6451109)
     IBM PS/2 Micro Channel SCSI Adapter with Cache (F/C 1018)(P/N 6451110)
     IBM Mwave WindSurfer-MCA Communication Adapter/A (F/C 7058)(P/N 82G7058)


ΓòÉΓòÉΓòÉ 12.10. PS/2 Model 76i 486DX2 Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
486DX2-based PS/2 Model 76i systems.

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 66MHz Systems
 PS/2 Model 9576-ANB

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 12.10.1. PS/2 Model 76i-ANB Tech Specs ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
PS/2 Model 76i-ANB system.

Note:  This model has been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Jump directly to the PS/2 Model 76i 486DX2 Systems header.


ΓòÉΓòÉΓòÉ 12.10.1.1. PS/2 Model 76i-ANB: Architecture/Memory ΓòÉΓòÉΓòÉ

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and Enter keys, to select the section to which you wish to jump, below:

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 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 9576-ANB header.

 DESCRIPTION                                       9576-ANB
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    Intel 486DX2
 Uses 3.3 Volt Technology                          No
 Clock Multiplying                                 Yes (2X)
 Clock Speed (MHz)
  Internal                                         66
  External                                         33
 Internal/External Cache                           (4u)
  Internal Cache Size                              8K
  External Cache Size Standard                     128K Write-Back
  External Cache Size Maximum                      256K Write-Back
 Instruction Set                                   32 bit
 Addressing                                        32 bit
 I/O Channel Width                                 32 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          40 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      8 (4m)
  DMA Burst Mode Supported                         Yes
  24/32-bit DMA Controller                         32
 Upgradeable Processor                             Yes
  Processor Complex/OverDrive Socket               OverDrive
 Bus Masters Supported                             15
 Page Memory Logic                                 Yes

 MEMORY
 Standard (Motherboard)                            8MB DRAM (2h)
 Maximum (System)                                  64MB DRAM or ECC (2r)(8q)
 Total # of Motherboard SIMM Sockets               4
 # of Motherboard SIMM Sockets Available           3
 Standard Memory Speed (ns)                        70
 Memory Type                                       DRAM
  Memory Interleaving                              No
 Wait States:                                      0-2
 Memory Used:                                      4/8/16MB DRAM SIMMs (70ns)
                                                   (8q)
                                                   8/16MB ECC SIMMs (70ns) (8q)


ΓòÉΓòÉΓòÉ 12.10.1.2. PS/2 Model 76i-ANB: Standard Features ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 9576-ANB header.

 DESCRIPTION                                       9576-ANB
 STANDARD FEATURES
 BIOS                                              SurePath
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 BIOS Extensions Stored on Disk                    Yes (5v)
 Setup & Diags Stored on Disk                      Yes (5v)
 Optional Math Coprocessor                         Yes
  Coprocessor Speed                                66
 Standard Graphics                                 Enhanced local Bus
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Motherboard
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
    Maximum Video Memory                           2MB
  Video Chipset                                    S3 928
  Resolutions Supported with Standard              640x480x16M Colors
   1MB DRAM                                        800x600x64K Colors
                                                   1024x768x256 Colors
                                                   1280x1024x16 Colors
  MediaBurst Full-Screen Video Playback            Optional
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 Compatible Graphics                               VGA/EGA/CGA/MCGA/SVGA
 RS232C Serial Ports                               2
  9/25-Pin                                         9-pin
  UART Chip Used                                   NS16550 Type 4
  Maximum Speed (bits/second)                      345,600
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
  IBM Mouse Included                               Yes, with all Non-Trackpoint
                                                   II Keyboards
   Mouse Resolution                                Up to 400 DPI, programmable
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 SCSI port                                         Requires optional adapter


ΓòÉΓòÉΓòÉ 12.10.1.3. PS/2 Model 76i-ANB: Disk/Tape Storage ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 9576-ANB header.

 DESCRIPTION                                       9576-ANB
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     3
  # of 3.5"/5.25" Bays                             1/2
  # of 3.5"/5.25" Bays Available                   0/1
 Selectable Boot                                   Yes
  Bootable Physical Drives                         All
 Diskette Drives Standard                          1x2.88MB
 Optional Diskette Drives
  3.5" Enhanced 2.88MB                             Yes
   Media Sensing                                   Yes
   Electronic Lock/Eject                           Yes
  Internal Drives Supported                        3
  External Drives Supported                        1
  Maximum # Diskette Drives                        3
 Hard Disk Drives Standard                         270MB
  Standard Interface                               IDE
  Bus Interface                                    RLL
  Drive Form Factor                                3.5"
  Average Access Rate (ms)                         ??
  Sector Buffer Size                               ??
  Data Transfer Rate (/Second)                     ??
  Average Latency (ms)                             ??
  Rotational Speed (RPMs)                          ??
  # of Heads                                       ??
  # of Platters                                    ??
  Sectors per Track                                ??
  Cylinders                                        ??
  Shock Rating (Gs): Operating                     ??
            Non-operating                          ??
  MTBF (Hours)                                     ??
  Auto Park                                        Yes
  Interleave Factor                                1:1
  Maximum # of Internal HD Drives                  2
 Standard Hard Disk Controller Type                EIDE
  Bus Master                                       Yes
   16-bit Adapter                                  ??
   32-bit Adapter                                  ??
  # of Devices Supported/Adapter                   4
  # of Adapters Supported/System                   1
  Controller Data Transfer/second                  ??
   Controller to Micro Channel                     ??

 TAPE STORAGE
 Internal Tape Drive Support                       Yes
  3.5" Tape Drives                                 Yes
  5.25" Tape Drives                                Yes
 External Tape Drive Support                       Yes
  SCSI Tape Drives                                 Yes (with optional SCSI
                                                   adapter)
  Parallel Tape Drives                             Yes


ΓòÉΓòÉΓòÉ 12.10.1.4. PS/2 Model 76i-ANB: Expansion/Operating System ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 9576-ANB header.

 DESCRIPTION                                       9576-ANB
 EXPANSION
 Total Adapter Slots                               3
  # of Long/Short Slots                            3/0
  # of 8/16/32-bit Slots                           0/0/3 (3a)
  # of Slots with Video Extension                  1
 Available Slots                                   3

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        5.00.1 or later ??
 IBM OS/2                                          2.00.1 (ServicePak Level
                                                   6050) or later ??
 IBM AIX PS/2                                      1.3.0 or later ??
 SCO XENIX                                         2.3.4 or later ??
 SCO UNIX 3.2                                      V.4 or later ??


ΓòÉΓòÉΓòÉ 12.10.1.5. PS/2 Model 76i-ANB: Keyboard/Security ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 9576-ANB header.

 DESCRIPTION                                       9576-ANB
 KEYBOARD
 122-Key Host Connected Keyboard (6w)              Yes (8p)
 106-Key Enhanced Keyboard (Japanese)              Yes (8p)
 102-Key Enhanced Keyboard (LA Spanish)            Yes (8p)
 101-Key Enhanced Keyboard                         Yes (8p)
 101-Key Quiet Touch Keyboard                      Yes (8p)
 101-Key Enhanced Keyboard With TrackPoint II      Yes (8p)
 84-Key Quiet Touch With TrackPoint II             Yes (8p)
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         7.5 (Default Keyboard)

 SECURITY
 Vital Product Data (VPD) Enabled                  Yes (5m)
 Cable/Bolt Down Capability                        Yes
 Lockable Cable Cover With Key Lock                Yes
 Tamper Evident Covers                             Yes
 Power on Password                                 Yes
 Privileged Access Password                        Yes
 Keyboard Password                                 Yes (operating system)
 Secure IPL source                                 Yes
 Secure Configuration                              Yes
 Secure Access Openings                            Yes
 Security Cable Cover for I/O cables               Optional
 Secured removable media via 2.88MB
   Electronic Eject Diskette Drive                 Optional


ΓòÉΓòÉΓòÉ 12.10.1.6. PS/2 Model 76i-ANB: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

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 Sections
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 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 9576-ANB header.

 DESCRIPTION                                       9576-ANB
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
  Orientation                                      Horizontal/Vertical (6y)
  Vertical-Mount Floor Stand                       Optional
 Dimensions: Height                                4.5"
        Width                                      14.2"
        Depth                                      15.6"
 Weight (lbs):                                     26.0

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              118
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-137 VAC                          3.5
        180-265 VAC                                1.75
 Operating Range: Temperature                      50-95┬░ F
           Rel. Humidity                           8-85%
 Maximum Current Leakage (uA)                      <500 ??
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  199
 Noise (Avg dB, Operating, 1m)                     5.0
    Classification                                 ??

 MISCELLANEOUS
 Software Choices                                  IBM PC DOS 5.02 and Windows
                                                   3.1,
                                                   IBM PC DOS 6.1 and Windows
                                                   3.1,
                                                   IBM PC DOS 6.3 and Windows
                                                   3.11,
                                                   IBM OS/2 2.1, or
                                                   IBM OS/2 2.11
 FCC Classification                                B
 UL Approval                                       UL 1950, 1st Edition
 CSA Approval                                      CSA22.2 No. 950
 Warranty Period                                   3 Years
  On-site/Carry-in                                 On-site
  Int'l Traveler's Warranty Service                No
  Countries Warranty Valid In                      N/A
 BIOS Model/Submodel/Revision                      ??/??/??
 BIOS Date                                         ??????
 Date Announced                                    14Jun94
 Date Withdrawn                                    13Nov95


ΓòÉΓòÉΓòÉ 12.10.1.7. PS/2 Model 76i-ANB: Limitations ΓòÉΓòÉΓòÉ

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and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 9576-ANB header.

     The system support only 4MB, 8MB and 16MB 70-nanosecond single in-line
      memory modules (SIMM).
 The following Micro Channel adapters, option and cables are NOT supported by
 the IBM Personal System/2 76/77i and 76/77s:

     IBM PS/2 8514 Display Adapter/A (4054)(1887972)
     IBM PS/2 Micro Channel SCSI Adapter (1005)(6451109)
     IBM PS/2 Micro Channel SCSI Adapter with Cache (1018)(6451110)
     IBM Mwave WindSurfer-MCA Communication Adapter/A (7058)(82G7058)


ΓòÉΓòÉΓòÉ 12.11. PS/2 Model 76i 486DX4 Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
486DX4-based PS/2 Model 76i systems.

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 100MHz Systems
 PS/2 Model 9576-ATB

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 12.11.1. PS/2 Model 76i-ATB Systems Tech Specs ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
PS/2 Model 76i-ATB system.

Note:  This model has been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Jump directly to the PS/2 Model 76i 486DX4 Systems header.


ΓòÉΓòÉΓòÉ 12.11.1.1. PS/2 Model 76i-ATB: Architecture/Memory ΓòÉΓòÉΓòÉ

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 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 9576-ATB header.

 DESCRIPTION                                       9576-ATB
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    Intel 486DX4
 Uses 3.3 Volt Technology                          Yes
 Clock Multiplying                                 Yes (3X)
 Clock Speed (MHz)
  Internal                                         100
  External                                         33
 Internal/External Cache                           (4u)
  Internal Cache Size                              16K
  External Cache Size Standard                     256K Write-Back
  External Cache Size Maximum                      256K Write-Back
 Instruction Set                                   32 bit
 Addressing                                        32 bit
 I/O Channel Width                                 32 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          40 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      8 (4m)
  DMA Burst Mode Supported                         Yes
  24/32-bit DMA Controller                         32
 Upgradeable Processor                             Yes
  Processor Complex/OverDrive Socket               OverDrive
 Bus Masters Supported                             15
 Page Memory Logic                                 Yes

 MEMORY
 Standard (Motherboard)                            8MB DRAM (2h)
 Maximum (System)                                  64MB DRAM or ECC (2r)(8q)
 Total # of Motherboard SIMM Sockets               4
 # of Motherboard SIMM Sockets Available           3
 Standard Memory Speed (ns)                        70
 Memory Type                                       DRAM
  Memory Interleaving                              No
 Wait States:                                      0-2
 Memory Used:                                      4/8/16MB DRAM SIMMs (70ns)
                                                   (8q)
                                                   8/16MB ECC SIMMs (70ns) (8q)


ΓòÉΓòÉΓòÉ 12.11.1.2. PS/2 Model 76i-ATB: Standard Features ΓòÉΓòÉΓòÉ

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and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 9576-ATB header.

 DESCRIPTION                                       9576-ATB
 STANDARD FEATURES
 BIOS                                              SurePath
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 BIOS Extensions Stored on Disk                    Yes (5v)
 Setup & Diags Stored on Disk                      Yes (5v)
 Optional Math Coprocessor                         Yes
  Coprocessor Speed                                100
 Standard Graphics                                 Enhanced local Bus
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Motherboard
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
    Maximum Video Memory                           2MB
  Video Chipset                                    S3 928
  Resolutions Supported with Standard              640x480x16M Colors
   1MB DRAM                                        800x600x64K Colors
                                                   1024x768x256 Colors
                                                   1280x1024x16 Colors
  MediaBurst Full-Screen Video Playback            Optional
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 Compatible Graphics                               VGA/EGA/CGA/MCGA/SVGA
 RS232C Serial Ports                               2
  9/25-Pin                                         9-pin
  UART Chip Used                                   NS16550 Type 4
  Maximum Speed (bits/second)                      345,600
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
  IBM Mouse Included                               Yes, with all Non-Trackpoint
                                                   II Keyboards
   Mouse Resolution                                Up to 400 DPI, programmable
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 SCSI port                                         Requires optional adapter


ΓòÉΓòÉΓòÉ 12.11.1.3. PS/2 Model 76i-ATB: Disk/Tape Storage ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

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 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 9576-ATB header.

 DESCRIPTION                                       9576-ATB
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     3
  # of 3.5"/5.25" Bays                             1/2
  # of 3.5"/5.25" Bays Available                   0/1
 Selectable Boot                                   Yes
  Bootable Physical Drives                         All
 Diskette Drives Standard                          1x2.88MB
 Optional Diskette Drives
  3.5" Enhanced 2.88MB                             Yes
   Media Sensing                                   Yes
   Electronic Lock/Eject                           Yes
  Internal Drives Supported                        3
  External Drives Supported                        1
  Maximum # Diskette Drives                        3
 Hard Disk Drives Standard                         270MB
  Standard Interface                               IDE
  Bus Interface                                    RLL
  Drive Form Factor                                3.5"
  Average Access Rate (ms)                         ??
  Sector Buffer Size                               ??
  Data Transfer Rate (/Second)                     ??
  Average Latency (ms)                             ??
  Rotational Speed (RPMs)                          ??
  # of Heads                                       ??
  # of Platters                                    ??
  Sectors per Track                                ??
  Cylinders                                        ??
  Shock Rating (Gs): Operating                     ??
            Non-operating                          ??
  MTBF (Hours)                                     ??
  Auto Park                                        Yes
  Interleave Factor                                1:1
  Maximum # of Internal HD Drives                  2
 Standard Hard Disk Controller Type                EIDE
  Bus Master                                       Yes
   16-bit Adapter                                  ??
   32-bit Adapter                                  ??
  # of Devices Supported/Adapter                   4
  # of Adapters Supported/System                   1
  Controller Data Transfer/second                  ??
   Controller to Micro Channel                     ??

 TAPE STORAGE
 Internal Tape Drive Support                       Yes
  3.5" Tape Drives                                 Yes
  5.25" Tape Drives                                Yes
 External Tape Drive Support                       Yes
  SCSI Tape Drives                                 Yes (with optional SCSI
                                                   adapter)
  Parallel Tape Drives                             Yes


ΓòÉΓòÉΓòÉ 12.11.1.4. PS/2 Model 76i-ATB: Expansion/Operating System ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 9576-ATB header.

 DESCRIPTION                                       9576-ATB
 EXPANSION
 Total Adapter Slots                               3
  # of Long/Short Slots                            3/0
  # of 8/16/32-bit Slots                           0/0/3 (3a)
  # of Slots with Video Extension                  1
 Available Slots                                   3

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        5.00.1 or later ??
 IBM OS/2                                          2.00.1 (ServicePak Level
                                                   6050) or later ??
 IBM AIX PS/2                                      1.3.0 or later ??
 SCO XENIX                                         2.3.4 or later ??
 SCO UNIX 3.2                                      V.4 or later ??


ΓòÉΓòÉΓòÉ 12.11.1.5. PS/2 Model 76i-ATB: Keyboard/Security ΓòÉΓòÉΓòÉ

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and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 9576-ATB header.

 DESCRIPTION                                       9576-ATB
 KEYBOARD
 122-Key Host Connected Keyboard (6w)              Yes (8p)
 106-Key Enhanced Keyboard (Japanese)              Yes (8p)
 102-Key Enhanced Keyboard (LA Spanish)            Yes (8p)
 101-Key Enhanced Keyboard                         Yes (8p)
 101-Key Quiet Touch Keyboard                      Yes (8p)
 101-Key Enhanced Keyboard With TrackPoint II      Yes (8p)
 84-Key Quiet Touch With TrackPoint II             Yes (8p)
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         7.5 (Default Keyboard)

 SECURITY
 Vital Product Data (VPD) Enabled                  Yes (5m)
 Cable/Bolt Down Capability                        Yes
 Lockable Cable Cover With Key Lock                Yes
 Tamper Evident Covers                             Yes
 Power on Password                                 Yes
 Privileged Access Password                        Yes
 Keyboard Password                                 Yes (operating system)
 Secure IPL source                                 Yes
 Secure Configuration                              Yes
 Secure Access Openings                            Yes
 Security Cable Cover for I/O cables               Optional
 Secured removable media via 2.88MB
   Electronic Eject Diskette Drive                 Optional


ΓòÉΓòÉΓòÉ 12.11.1.6. PS/2 Model 76i-ATB: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 9576-ATB header.

 DESCRIPTION                                       9576-ATB
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
  Orientation                                      Horizontal/Vertical (6y)
  Vertical-Mount Floor Stand                       Optional
 Dimensions: Height                                4.5"
        Width                                      14.2"
        Depth                                      15.6"
 Weight (lbs):                                     26.0

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              118
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-137 VAC                          3.5
        180-265 VAC                                1.75
 Operating Range: Temperature                      50-95┬░ F
           Rel. Humidity                           8-85%
 Maximum Current Leakage (uA)                      <500 ??
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  199
 Noise (Avg dB, Operating, 1m)                     5.0
    Classification                                 ??

 MISCELLANEOUS
 Software Choices                                  IBM PC DOS 5.02 and Windows
                                                   3.1,
                                                   IBM PC DOS 6.1 and Windows
                                                   3.1,
                                                   IBM PC DOS 6.3 and Windows
                                                   3.11,
                                                   IBM OS/2 2.1, or
                                                   IBM OS/2 2.11
 FCC Classification                                B
 UL Approval                                       UL 1950, 1st Edition
 CSA Approval                                      CSA22.2 No. 950
 Warranty Period                                   3 Years
  On-site/Carry-in                                 On-site
  Int'l Traveler's Warranty Service                No
  Countries Warranty Valid In                      N/A
 BIOS Model/Submodel/Revision                      ??/??/??
 BIOS Date                                         ??????
 Date Announced                                    14Jun94
 Date Withdrawn                                    13Nov95


ΓòÉΓòÉΓòÉ 12.11.1.7. PS/2 Model 76i-ATB: Limitations ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 9576-ATB header.

     The system support only 4MB, 8MB and 16MB 70-nanosecond single in-line
      memory modules (SIMM).
 The following Micro Channel adapters, option and cables are NOT supported by
 the IBM Personal System/2 76/77i and 76/77s:

     IBM PS/2 8514 Display Adapter/A (4054)(1887972)
     IBM PS/2 Micro Channel SCSI Adapter (1005)(6451109)
     IBM PS/2 Micro Channel SCSI Adapter with Cache (1018)(6451110)
     IBM Mwave WindSurfer-MCA Communication Adapter/A (7058)(82G7058)


ΓòÉΓòÉΓòÉ 12.12. PS/2 Model 76s 486SX Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
486SX-based Model 76s systems.

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and Enter keys, to select the section to which you wish to jump, below:

 33MHz Systems
 PS/2 Model 9576-BUB

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 12.12.1. PS/2 Model 76s-BUB Tech Specs ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
PS/2 Model 76s-BUB system.

Note:  This model has been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Jump directly to the PS/2 Model 76s 486SX system header.


ΓòÉΓòÉΓòÉ 12.12.1.1. PS/2 Model 76s-BUB: Architecture/Memory ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
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 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 9576-BUB header.

 DESCRIPTION                                       9576-BUB
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    Intel 486SX
 Uses 3.3 Volt Technology                          No
 Clock Multiplying                                 No
 Clock Speed (MHz)
  Internal                                         33
  External                                         33
 Internal/External Cache                           (4u)
  Internal Cache Size                              8K
  External Cache Size Standard                     0K
  External Cache Size Maximum                      0K
 Instruction Set                                   32 bit
 Addressing                                        32 bit
 I/O Channel Width                                 32 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          40 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      8 (4m)
  DMA Burst Mode Supported                         Yes
  24/32-bit DMA Controller                         32
 Upgradeable Processor                             Yes
  Processor Complex/OverDrive Socket               OverDrive
 Bus Masters Supported                             15
 Page Memory Logic                                 Yes

 MEMORY
 Standard (Motherboard)                            8MB DRAM (2h)
 Maximum (System)                                  64MB DRAM or ECC (2r)(8q)
 Total # of Motherboard SIMM Sockets               4
 # of Motherboard SIMM Sockets Available           3
 Standard Memory Speed (ns)                        70
 Memory Type                                       DRAM
  Memory Interleaving                              No
 Wait States:                                      0-2
 Memory Used:                                      4/8/16MB DRAM SIMMs (70ns)
                                                   (8q)
                                                   8/16MB ECC SIMMs (70ns) (8q)


ΓòÉΓòÉΓòÉ 12.12.1.2. PS/2 Model 76s-BUB: Standard Features ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 9576-BUB header.

 DESCRIPTION                                       9576-BUB
 STANDARD FEATURES
 BIOS                                              SurePath
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 BIOS Extensions Stored on Disk                    Yes (5v)
 Setup & Diags Stored on Disk                      Yes (5v)
 Optional Math Coprocessor                         No
  Coprocessor Speed                                N/A
 Standard Graphics                                 Enhanced local Bus
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Motherboard
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
    Maximum Video Memory                           2MB
  Video Chipset                                    S3 928
  Resolutions Supported with Standard              640x480x16M Colors
   1MB DRAM                                        800x600x64K Colors
                                                   1024x768x256 Colors
                                                   1280x1024x16 Colors
  MediaBurst Full-Screen Video Playback            Optional
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 Compatible Graphics                               VGA/EGA/CGA/MCGA/SVGA
 RS232C Serial Ports                               2
  9/25-Pin                                         9-pin
  UART Chip Used                                   NS16550 Type 4
  Maximum Speed (bits/second)                      345,600
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
  IBM Mouse Included                               Yes, with all Non-Trackpoint
                                                   II Keyboards
   Mouse Resolution                                Up to 400 DPI, programmable
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 SCSI port                                         Yes
  Fast or Fast/Wide                                Fast
  Internal/External Connectors                     Both
  On Motherboard/Adapter                           Adapter


ΓòÉΓòÉΓòÉ 12.12.1.3. PS/2 Model 76s-BUB: Disk/Tape Storage ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 9576-BUB header.

 DESCRIPTION                                       9576-BUB
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     3
  # of 3.5"/5.25" Bays                             1/2
  # of 3.5"/5.25" Bays Available                   0/1
 Selectable Boot                                   Yes
  Bootable Physical Drives                         All
 Diskette Drives Standard                          1x2.88MB
 Optional Diskette Drives
  3.5" Enhanced 2.88MB                             Yes
   Media Sensing                                   Yes
   Electronic Lock/Eject                           Yes
  Internal Drives Supported                        3
  External Drives Supported                        1
  Maximum # Diskette Drives                        3
 Hard Disk Drives Standard                         270MB
  Standard Interface                               SCSI
  Bus Interface                                    RLL
  Drive Form Factor                                3.5"
  Average Access Rate (ms)                         8.7
  Sector Buffer Size                               ??
  Data Transfer Rate (/Second)                     ??
  Average Latency (ms)                             ??
  Rotational Speed (RPMs)                          ??
  # of Heads                                       2
  # of Platters                                    ??
  Sectors per Track                                1
  Cylinders                                        916
  Shock Rating (Gs): Operating                     ??
            Non-operating                          ??
  MTBF (Hours)                                     ??
  Auto Park                                        Yes
  Interleave Factor                                1:1
  Maximum # of Internal HD Drives                  2
 Standard Hard Disk Controller Type                SCSI
  Bus Master                                       Yes
   16-bit/32-bit Adapter                           32
  # of Devices Supported/Adapter                   7
  # of Adapters Supported/System                   3
  Controller Data Transfer/second                  ??
   Controller to Micro Channel                     ??

 TAPE STORAGE
 Internal Tape Drive Support                       Yes
  3.5" Tape Drives                                 Yes
  5.25" Tape Drives                                Yes
 External Tape Drive Support                       Yes
  SCSI Tape Drives                                 Yes
  Parallel Tape Drives                             Yes


ΓòÉΓòÉΓòÉ 12.12.1.4. PS/2 Model 76s-BUB: Expansion/Operating System ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 9576-BUB header.

 DESCRIPTION                                       9576-BUB
 EXPANSION
 Total Adapter Slots                               3
  # of Long/Short Slots                            3/0
  # of 8/16/32-bit Slots                           0/0/3 (3a)
  # of Slots with Video Extension                  1
 Available Slots                                   3

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        5.00.1 or later ??
 IBM OS/2                                          2.00.1 (ServicePak Level
                                                   6050) or later ??
 IBM AIX PS/2                                      1.3.0 or later ??
 SCO XENIX                                         2.3.4 or later ??
 SCO UNIX 3.2                                      V.4 or later ??


ΓòÉΓòÉΓòÉ 12.12.1.5. PS/2 Model 76s-BUB: Keyboard/Security ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 9576-BUB header.

 DESCRIPTION                                       9576-BUB
 KEYBOARD
 122-Key Host Connected Keyboard (6w)              Yes (8p)
 106-Key Enhanced Keyboard (Japanese)              Yes (8p)
 102-Key Enhanced Keyboard (LA Spanish)            Yes (8p)
 101-Key Enhanced Keyboard                         Yes (8p)
 101-Key Quiet Touch Keyboard                      Yes (8p)
 101-Key Enhanced Keyboard With TrackPoint II      Yes (8p)
 84-Key Quiet Touch With TrackPoint II             Yes (8p)
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         7.5 (Default Keyboard)

 SECURITY
 Vital Product Data (VPD) Enabled                  Yes (5m)
 Cable/Bolt Down Capability                        Yes
 Lockable Cable Cover With Key Lock                Yes
 Tamper Evident Covers                             Yes
 Power on Password                                 Yes
 Privileged Access Password                        Yes
 Keyboard Password                                 Yes (operating system)
 Secure IPL source                                 Yes
 Secure Configuration                              Yes
 Secure Access Openings                            Yes
 Security Cable Cover for I/O cables               Optional
 Secured removable media via 2.88MB
   Electronic Eject Diskette Drive                 Optional


ΓòÉΓòÉΓòÉ 12.12.1.6. PS/2 Model 76s-BUB: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

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 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 9576-BUB header.

 DESCRIPTION                                       9576-BUB
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
  Orientation                                      Horizontal/Vertical (6y)
  Vertical-Mount Floor Stand                       Standard
 Dimensions: Height                                4.5"
        Width                                      14.2"
        Depth                                      15.6"
 Weight (lbs):                                     26.0

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              118
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-137 VAC                          3.5
        180-265 VAC                                1.75
 Operating Range: Temperature                      50-95┬░ F
           Rel. Humidity                           8-85%
 Maximum Current Leakage (uA)                      <500 ??
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  199
 Noise (Avg dB, Operating, 1m)                     5.0
    Classification                                 ??

 MISCELLANEOUS
 Software Choices                                  IBM PC DOS 5.02 and Windows
                                                   3.1,
                                                   IBM PC DOS 6.1 and Windows
                                                   3.1,
                                                   IBM PC DOS 6.3 and Windows
                                                   3.11,
                                                   IBM OS/2 2.1, or
                                                   IBM OS/2 2.11
 FCC Classification                                B
 UL Approval                                       UL 1950, 1st Edition
 CSA Approval                                      CSA22.2 No. 950
 Warranty Period                                   3 Years
  On-site/Carry-in                                 On-site
  Int'l Traveler's Warranty Service                No
  Countries Warranty Valid In                      N/A
 BIOS Model/Submodel/Revision                      ??/??/??
 BIOS Date                                         ??????
 Date Announced                                    14Jun94
 Date Withdrawn                                    13Nov95


ΓòÉΓòÉΓòÉ 12.12.1.7. PS/2 Model 76s-BUB: Limitations ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 76s-BUB header.

     The system support only 4MB, 8MB and 16MB 70-nanosecond single in-line
      memory modules (SIMM).
 The following Micro Channel adapters, option and cables are NOT supported by
 the IBM Personal System/2 76/77i and 76/77s:

     IBM PS/2 8514 Display Adapter/A (4054)(1887972)
     IBM PS/2 Micro Channel SCSI Adapter (1005)(6451109)
     IBM PS/2 Micro Channel SCSI Adapter with Cache (1018)(6451110)
     IBM Mwave WindSurfer-MCA Communication Adapter/A (7058)(82G7058)


ΓòÉΓòÉΓòÉ 12.13. PS/2 Model 76s 486DX2 Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
486DX2 PS/2 Model 76s systems.

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 66MHz Systems
 PS/2 Model 9576-BNB

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 12.13.1. PS/2 Model 76s-BNB Tech Specs ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
PS/2 Model 76s-BNB system.

Note:  This model has been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Jump directly to the PS/2 Model 76s-BNB system header.


ΓòÉΓòÉΓòÉ 12.13.1.1. PS/2 Model 76s-BNB: Architecture/Memory ΓòÉΓòÉΓòÉ

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 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 9576-BNB header.

 DESCRIPTION                                       9576-BNB
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    Intel 486DX2
 Uses 3.3 Volt Technology                          No
 Clock Multiplying                                 Yes (2X)
 Clock Speed (MHz)
  Internal                                         66
  External                                         33
 Internal/External Cache                           (4u)
  Internal Cache Size                              8K
  External Cache Size Standard                     128K Write-Back
  External Cache Size Maximum                      256K Write-Back
 Instruction Set                                   32 bit
 Addressing                                        32 bit
 I/O Channel Width                                 32 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          40 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      8 (4m)
  DMA Burst Mode Supported                         Yes
  24/32-bit DMA Controller                         32
 Upgradeable Processor                             Yes
  Processor Complex/OverDrive Socket               OverDrive
 Bus Masters Supported                             15
 Page Memory Logic                                 Yes

 MEMORY
 Standard (Motherboard)                            8MB DRAM (2h)
 Maximum (System)                                  64MB DRAM or ECC (2r)(8q)
 Total # of Motherboard SIMM Sockets               4
 # of Motherboard SIMM Sockets Available           3
 Standard Memory Speed (ns)                        70
 Memory Type                                       DRAM
  Memory Interleaving                              No
 Wait States:                                      0-2
 Memory Used:                                      4/8/16MB DRAM SIMMs (70ns)
                                                   (8q)
                                                   8/16MB ECC SIMMs (70ns) (8q)


ΓòÉΓòÉΓòÉ 12.13.1.2. PS/2 Model 76s-BNB: Standard Features ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 9576-BNB header.

 DESCRIPTION                                       9576-BNB
 STANDARD FEATURES
 BIOS                                              SurePath
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 BIOS Extensions Stored on Disk                    Yes (5v)
 Setup & Diags Stored on Disk                      Yes (5v)
 Optional Math Coprocessor                         Yes
  Coprocessor Speed                                66
 Standard Graphics                                 Enhanced local Bus
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Motherboard
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
    Maximum Video Memory                           2MB
  Video Chipset                                    S3 928
  Resolutions Supported with Standard              640x480x16M Colors
   1MB DRAM                                        800x600x64K Colors
                                                   1024x768x256 Colors
                                                   1280x1024x16 Colors
  MediaBurst Full-Screen Video Playback            Optional
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 Compatible Graphics                               VGA/EGA/CGA/MCGA/SVGA
 RS232C Serial Ports                               2
  9/25-Pin                                         9-pin
  UART Chip Used                                   NS16550 Type 4
  Maximum Speed (bits/second)                      345,600
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
  IBM Mouse Included                               Yes, with all Non-Trackpoint
                                                   II Keyboards
   Mouse Resolution                                Up to 400 DPI, programmable
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 SCSI port                                         Yes
  Fast or Fast/Wide                                Fast
  Internal/External Connectors                     Both
  On Motherboard/Adapter                           Adapter


ΓòÉΓòÉΓòÉ 12.13.1.3. PS/2 Model 76s-BNB: Disk/Tape Storage ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
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 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 9576-BNB header.

 DESCRIPTION                                       9576-BNB
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     3
  # of 3.5"/5.25" Bays                             1/2
  # of 3.5"/5.25" Bays Available                   0/1
 Selectable Boot                                   Yes
  Bootable Physical Drives                         All
 Diskette Drives Standard                          1x2.88MB
 Optional Diskette Drives
  3.5" Enhanced 2.88MB                             Yes
   Media Sensing                                   Yes
   Electronic Lock/Eject                           Yes
  Internal Drives Supported                        3
  External Drives Supported                        1
  Maximum # Diskette Drives                        3
 Hard Disk Drives Standard                         270MB
  Standard Interface                               SCSI
  Bus Interface                                    RLL
  Drive Form Factor                                3.5"
  Average Access Rate (ms)                         8.7
  Sector Buffer Size                               ??
  Data Transfer Rate (/Second)                     ??
  Average Latency (ms)                             ??
  Rotational Speed (RPMs)                          ??
  # of Heads                                       2
  # of Platters                                    ??
  Sectors per Track                                1
  Cylinders                                        916
  Shock Rating (Gs): Operating                     ??
                                                   ??
            Non-operating                          ??
                                                   ??
  MTBF (Hours)                                     ??
                                                   ??
  Auto Park                                        Yes
  Interleave Factor                                1:1
  Maximum # of Internal HD Drives                  2
 Standard Hard Disk Controller Type                SCSI
  Bus Master                                       Yes
   16-bit/32-bit Adapter                           32
  # of Devices Supported/Adapter                   7
  # of Adapters Supported/System                   3
  Controller Data Transfer/second                  ??
   Controller to Micro Channel                     ??

 TAPE STORAGE
 Internal Tape Drive Support                       Yes
  3.5" Tape Drives                                 Yes
  5.25" Tape Drives                                Yes
 External Tape Drive Support                       Yes
  SCSI Tape Drives                                 Yes
  Parallel Tape Drives                             Yes


ΓòÉΓòÉΓòÉ 12.13.1.4. PS/2 Model 76s-BNB: Expansion/Operating System ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 9576-BNB header.

 DESCRIPTION                                       9576-BNB
 EXPANSION
 Total Adapter Slots                               3
  # of Long/Short Slots                            3/0
  # of 8/16/32-bit Slots                           0/0/3 (3a)
  # of Slots with Video Extension                  1
 Available Slots                                   3

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        5.00.1 or later ??
 IBM OS/2                                          2.00.1 (ServicePak Level
                                                   6050) or later ??
 IBM AIX PS/2                                      1.3.0 or later ??
 SCO XENIX                                         2.3.4 or later ??
 SCO UNIX 3.2                                      V.4 or later ??


ΓòÉΓòÉΓòÉ 12.13.1.5. PS/2 Model 76s-BNB: Keyboard/Security ΓòÉΓòÉΓòÉ

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 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 9576-BNB header.

 DESCRIPTION                                       9576-BNB
 KEYBOARD
 122-Key Host Connected Keyboard (6w)              Yes (8p)
 106-Key Enhanced Keyboard (Japanese)              Yes (8p)
 102-Key Enhanced Keyboard (LA Spanish)            Yes (8p)
 101-Key Enhanced Keyboard                         Yes (8p)
 101-Key Quiet Touch Keyboard                      Yes (8p)
 101-Key Enhanced Keyboard With TrackPoint II      Yes (8p)
 84-Key Quiet Touch With TrackPoint II             Yes (8p)
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         7.5 (Default Keyboard)

 SECURITY
 Vital Product Data (VPD) Enabled                  Yes (5m)
 Cable/Bolt Down Capability                        Yes
 Lockable Cable Cover With Key Lock                Yes
 Tamper Evident Covers                             Yes
 Power on Password                                 Yes
 Privileged Access Password                        Yes
 Keyboard Password                                 Yes (operating system)
 Secure IPL source                                 Yes
 Secure Configuration                              Yes
 Secure Access Openings                            Yes
 Security Cable Cover for I/O cables               Optional
 Secured removable media via 2.88MB
   Electronic Eject Diskette Drive                 Optional


ΓòÉΓòÉΓòÉ 12.13.1.6. PS/2 Model 76s-BNB: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 9576-BNB header.

 DESCRIPTION                                       9576-BNB
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
  Orientation                                      Horizontal/Vertical (6y)
  Vertical-Mount Floor Stand                       Standard
 Dimensions: Height                                4.5"
        Width                                      14.2"
        Depth                                      15.6"
 Weight (lbs):                                     26.0

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              118
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-137 VAC                          3.5
        180-265 VAC                                1.75
 Operating Range: Temperature                      50-95┬░ F
           Rel. Humidity                           8-85%
 Maximum Current Leakage (uA)                      <500 ??
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  199
 Noise (Avg dB, Operating, 1m)                     5.0
    Classification                                 ??

 MISCELLANEOUS
 Software Choices                                  IBM PC DOS 5.02 and Windows
                                                   3.1,
                                                   IBM PC DOS 6.1 and Windows
                                                   3.1,
                                                   IBM PC DOS 6.3 and Windows
                                                   3.11,
                                                   IBM OS/2 2.1, or
                                                   IBM OS/2 2.11
 FCC Classification                                B
 UL Approval                                       UL 1950, 1st Edition
 CSA Approval                                      CSA22.2 No. 950
 Warranty Period                                   3 Years
  On-site/Carry-in                                 On-site
  Int'l Traveler's Warranty Service                No
  Countries Warranty Valid In                      N/A
 BIOS Model/Submodel/Revision                      ??/??/??
 BIOS Date                                         ??????
 Date Announced                                    14Jun94
 Date Withdrawn                                    13Nov95


ΓòÉΓòÉΓòÉ 12.13.1.7. PS/2 Model 76s-BNB: Limitations ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 9576-BNB header.

     The system support only 4MB, 8MB and 16MB 70-nanosecond single in-line
      memory modules (SIMM).
 The following Micro Channel adapters, option and cables are NOT supported by
 the IBM Personal System/2 76/77i and 76/77s:

     IBM PS/2 8514 Display Adapter/A (4054)(1887972)
     IBM PS/2 Micro Channel SCSI Adapter (1005)(6451109)
     IBM PS/2 Micro Channel SCSI Adapter with Cache (1018)(6451110)
     IBM Mwave WindSurfer-MCA Communication Adapter/A (7058)(82G7058)


ΓòÉΓòÉΓòÉ 12.14. PS/2 Model 76s 486DX4 Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
486DX4 PS/2 Model 76s systems.

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 100MHz Systems
 PS/2 Model 9576-BTB

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 12.14.1. PS/2 Model 76s-BTB System Tech Specs ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
PS/2 Model 76s-BTB system.

Note:  This model has been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Jump directly to the PS/2 Model 76s DX4 Systems header.


ΓòÉΓòÉΓòÉ 12.14.1.1. PS/2 Model 76s-BTB: Architecture/Memory ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 9576-BTB header.

 DESCRIPTION                                       9576-BTB
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    Intel 486DX4
 Uses 3.3 Volt Technology                          Yes
 Clock Multiplying                                 Yes (3X)
 Clock Speed (MHz)
  Internal                                         100
  External                                         33
 Internal/External Cache                           (4u)
  Internal Cache Size                              16K
  External Cache Size Standard                     256K Write-Back
  External Cache Size Maximum                      256K Write-Back
 Instruction Set                                   32 bit
 Addressing                                        32 bit
 I/O Channel Width                                 32 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          40 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      8 (4m)
  DMA Burst Mode Supported                         Yes
  24/32-bit DMA Controller                         32
 Upgradeable Processor                             Yes
  Processor Complex/OverDrive Socket               OverDrive
 Bus Masters Supported                             15
 Page Memory Logic                                 Yes

 MEMORY
 Standard (Motherboard)                            8MB DRAM (2h)
 Maximum (System)                                  64MB DRAM or ECC (2r)(8q)
 Total # of Motherboard SIMM Sockets               4
 # of Motherboard SIMM Sockets Available           3
 Standard Memory Speed (ns)                        70
 Memory Type                                       DRAM
  Memory Interleaving                              No
 Wait States:                                      0-2
 Memory Used:                                      4/8/16MB DRAM SIMMs (70ns)
                                                   (8q)
                                                   8/16MB ECC SIMMs (70ns) (8q)


ΓòÉΓòÉΓòÉ 12.14.1.2. PS/2 Model 76s-BTB: Standard Features ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 9576-BTB header.

 DESCRIPTION                                       9576-BTB
 STANDARD FEATURES
 BIOS                                              SurePath
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 BIOS Extensions Stored on Disk                    Yes (5v)
 Setup & Diags Stored on Disk                      Yes (5v)
 Optional Math Coprocessor                         Yes
  Coprocessor Speed                                100
 Standard Graphics                                 Enhanced local Bus
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Motherboard
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
    Maximum Video Memory                           2MB
  Video Chipset                                    S3 928
  Resolutions Supported with Standard              640x480x16M Colors
   1MB DRAM                                        800x600x64K Colors
                                                   1024x768x256 Colors
                                                   1280x1024x16 Colors
  MediaBurst Full-Screen Video Playback            Optional
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 Compatible Graphics                               VGA/EGA/CGA/MCGA/SVGA
 RS232C Serial Ports                               2
  9/25-Pin                                         9-pin
  UART Chip Used                                   NS16550 Type 4
  Maximum Speed (bits/second)                      345,600
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
  IBM Mouse Included                               Yes, with all Non-Trackpoint
                                                   II Keyboards
   Mouse Resolution                                Up to 400 DPI, programmable
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 SCSI port                                         Yes
  Fast or Fast/Wide                                Fast
  Internal/External Connectors                     Both
  On Motherboard/Adapter                           Adapter


ΓòÉΓòÉΓòÉ 12.14.1.3. PS/2 Model 76s-BTB: Disk/Tape Storage ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 9576-BTB header.

 DESCRIPTION                                       9576-BTB
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     3
  # of 3.5"/5.25" Bays                             1/2
  # of 3.5"/5.25" Bays Available                   0/1
 Selectable Boot                                   Yes
  Bootable Physical Drives                         All
 Diskette Drives Standard                          1x2.88MB
 Optional Diskette Drives
  3.5" Enhanced 2.88MB                             Yes
   Media Sensing                                   Yes
   Electronic Lock/Eject                           Yes
  Internal Drives Supported                        3
  External Drives Supported                        1
  Maximum # Diskette Drives                        3
 Hard Disk Drives Standard                         270MB
  Standard Interface                               SCSI
  Bus Interface                                    RLL
  Drive Form Factor                                3.5"
  Average Access Rate (ms)                         8.7
  Sector Buffer Size                               ??
  Data Transfer Rate (/Second)                     ??
  Average Latency (ms)                             ??
  Rotational Speed (RPMs)                          ??
  # of Heads                                       2
  # of Platters                                    ??
  Sectors per Track                                1
  Cylinders                                        916
  Shock Rating (Gs): Operating                     ??
            Non-operating                          ??
  MTBF (Hours)                                     ??
  Auto Park                                        Yes
  Interleave Factor                                1:1
  Maximum # of Internal HD Drives                  2
 Standard Hard Disk Controller Type                SCSI
  Bus Master                                       Yes
   16-bit/32-bit Adapter                           32
  # of Devices Supported/Adapter                   7
  # of Adapters Supported/System                   3
  Controller Data Transfer/second                  ??
   Controller to Micro Channel                     ??

 TAPE STORAGE
 Internal Tape Drive Support                       Yes
  3.5" Tape Drives                                 Yes
  5.25" Tape Drives                                Yes
 External Tape Drive Support                       Yes
  SCSI Tape Drives                                 Yes
  Parallel Tape Drives                             Yes


ΓòÉΓòÉΓòÉ 12.14.1.4. PS/2 Model 76s-BTB: Expansion/Operating System ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 9576-BTB header.

 DESCRIPTION                                       9576-BTB
 EXPANSION
 Total Adapter Slots                               3
  # of Long/Short Slots                            3/0
  # of 8/16/32-bit Slots                           0/0/3 (3a)
  # of Slots with Video Extension                  1
 Available Slots                                   3

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        5.00.1 or later ??
 IBM OS/2                                          2.00.1 (ServicePak Level
                                                   6050) or later ??
 IBM AIX PS/2                                      1.3.0 or later ??
 SCO XENIX                                         2.3.4 or later ??
 SCO UNIX 3.2                                      V.4 or later ??


ΓòÉΓòÉΓòÉ 12.14.1.5. PS/2 Model 76s-BTB: Keyboard/Security ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 9576-BTB header.

 DESCRIPTION                                       9576-BTB
 KEYBOARD
 122-Key Host Connected Keyboard (6w)              Yes (8p)
 106-Key Enhanced Keyboard (Japanese)              Yes (8p)
 102-Key Enhanced Keyboard (LA Spanish)            Yes (8p)
 101-Key Enhanced Keyboard                         Yes (8p)
 101-Key Quiet Touch Keyboard                      Yes (8p)
 101-Key Enhanced Keyboard With TrackPoint II      Yes (8p)
 84-Key Quiet Touch With TrackPoint II             Yes (8p)
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         7.5 (Default Keyboard)

 SECURITY
 Vital Product Data (VPD) Enabled                  Yes (5m)
 Cable/Bolt Down Capability                        Yes
 Lockable Cable Cover With Key Lock                Yes
 Tamper Evident Covers                             Yes
 Power on Password                                 Yes
 Privileged Access Password                        Yes
 Keyboard Password                                 Yes (operating system)
 Secure IPL source                                 Yes
 Secure Configuration                              Yes
 Secure Access Openings                            Yes
 Security Cable Cover for I/O cables               Optional
 Secured removable media via 2.88MB
   Electronic Eject Diskette Drive                 Optional


ΓòÉΓòÉΓòÉ 12.14.1.6. PS/2 Model 76s-BTB: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

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 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 9576-BTB header.

 DESCRIPTION                                       9576-BTB
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
  Orientation                                      Horizontal/Vertical (6y)
  Vertical-Mount Floor Stand                       Standard
 Dimensions: Height                                4.5"
        Width                                      14.2"
        Depth                                      15.6"
 Weight (lbs):                                     26.0

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              118
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-137 VAC                          3.5
        180-265 VAC                                1.75
 Operating Range: Temperature                      50-95┬░ F
           Rel. Humidity                           8-85%
 Maximum Current Leakage (uA)                      <500 ??
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  199
 Noise (Avg dB, Operating, 1m)                     5.0
    Classification                                 ??

 MISCELLANEOUS
 Software Choices                                  IBM PC DOS 5.02 and Windows
                                                   3.1,
                                                   IBM PC DOS 6.1 and Windows
                                                   3.1,
                                                   IBM PC DOS 6.3 and Windows
                                                   3.11,
                                                   IBM OS/2 2.1, or
                                                   IBM OS/2 2.11
 FCC Classification                                B
 UL Approval                                       UL 1950, 1st Edition
 CSA Approval                                      CSA22.2 No. 950
 Warranty Period                                   3 Years
  On-site/Carry-in                                 On-site
  Int'l Traveler's Warranty Service                No
  Countries Warranty Valid In                      N/A
 BIOS Model/Submodel/Revision                      ??/??/??
 BIOS Date                                         ??????
 Date Announced                                    14Jun94
 Date Withdrawn                                    13Nov95


ΓòÉΓòÉΓòÉ 12.14.1.7. PS/2 Model 76s-BTB: Limitations ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating system
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 76s-BTB header.

     The system support only 4MB, 8MB and 16MB 70-nanosecond single in-line
      memory modules (SIMM).
 The following Micro Channel adapters, option and cables are NOT supported by
 the IBM Personal System/2 76/77i and 76/77s:

     IBM PS/2 8514 Display Adapter/A (4054)(1887972)
     IBM PS/2 Micro Channel SCSI Adapter (1005)(6451109)
     IBM PS/2 Micro Channel SCSI Adapter with Cache (1018)(6451110)
     IBM Mwave WindSurfer-MCA Communication Adapter/A (7058)(82G7058)


ΓòÉΓòÉΓòÉ 12.15. PS/2 Model 77 486SX Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
486SX-based Model 77 systems.

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 33MHz Systems
 PS/2 Model 77-0UA/0UF

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 12.15.1. PS/2 Model 77-0UA/0UF/DUA/DUG/KUA/KUG/QUA/QUG Tech Specs ΓòÉΓòÉΓòÉ

The PS/2 Models 77-0UA/0UF/DUA/DUG/KUA/KUG/QUA/QUG are identical except for the
hard disk drive used, and the choice of operating system included.  Therefore
all models will be covered by this one document. Differences will be indicated
by model number in parentheses.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Jump directly to the PS/2 Model 77 486SX Systems header.


ΓòÉΓòÉΓòÉ 12.15.1.1. PS/2 Model 77-0UA/0UF/DUA/DUG/KUA/KUG/QUA/QUG: Architecture/Memory ΓòÉΓòÉΓòÉ

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and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77-0UA/0UF/DUA/DUG/KUA/KUG/QUA/QUG header.

 DESCRIPTION
                                                   9577-0UA/0UF/DUA/DUG/KUA/KUG/QUA/QUG
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    Intel 486SX
 Uses 3.3 Volt Technology                          No
 Clock Multiplying                                 No
 Clock Speed (MHz)
  Internal                                         33
  External                                         33
 Internal/External Cache                           (4u)
  Internal Cache Size                              8K
  External Cache Size Standard                     0K
  External Cache Size Maximum                      0K
 Instruction Set                                   32 bit
 Addressing                                        32 bit
 I/O Channel Width                                 32 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          40 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
  DMA Burst Mode Supported                         ???
  24/32-bit DMA Controller                         24
 Upgradeable Processor                             Yes
  Processor Complex/OverDrive Socket               OverDrive
  Processor Upgrades Available                     66/33MHz 486DX2
 Bus Masters Supported                             15
 Interleaved Memory                                Yes
 Matched Memory Cycle                              No (5i)
 Page Memory Logic                                 Yes

 MEMORY
 Standard (Motherboard)                            8MB (2h)
 Maximum (Motherboard)                             32MB
 Maximum (System)                                  32MB (2r)
 Total # of Motherboard SIMM Sockets               4
 # of Motherboard SIMM Sockets Available           3
 Standard Memory Speed (ns)                        70
 Memory Type                                       DRAM
  Memory Interleaving                              Yes
 Wait States: Motherboard                          0
        Adapter                                    N/A (8q)
 Memory Used: Motherboard                          2/4/8MB SIMMs (70ns)


ΓòÉΓòÉΓòÉ 12.15.1.2. PS/2 Model 77-0UA/0UF/DUA/DUG/KUA/KUG/QUA/QUG: Standard Features ΓòÉΓòÉΓòÉ

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and Enter keys, to select the section to which you wish to jump, below:

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 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77-0UA/0UF/DUA/DUG/KUA/KUG/QUA/QUG header.

 DESCRIPTION
                                                   9577-0UA/0UF/DUA/DUG/KUA/KUG/QUA/QUG
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 BIOS Extensions Stored on Disk                    Yes (5v)
 Setup & Diags Stored on Disk                      Yes (5v)
 Optional Math Coprocessor                         487SX
  Coprocessor Speed                                33 MHz
 Standard Graphics                                 XGA-2
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Adapter
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
  Resolutions Supported                            640x480 64K Colors
                                                   800x600 64K Colors
                                                   1024x768 256 Colors
                                                   1280x1024 16 Colors
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 Maximum Graphics                                  XGA-2
 RS232C Serial Ports                               2
  9/25-Pin                                         9-pin
  UART Chip Used                                   NS16550 Type 4
  Maximum Speed (bits/second)                      345,600
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
  IBM Mouse Included                               Yes
   Mouse Resolution                                Up to 200 DPI, programmable
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 SCSI port                                         Yes
  Fast or Fast/Wide                                Fast
  Internal/External Connectors                     Both
  On Motherboard/Adapter                           Adapter


ΓòÉΓòÉΓòÉ 12.15.1.3. PS/2 Model 77-0UA/0UF/DUA/DUG/KUA/KUG/QUA/QUG: Disk/Tape Storage ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77-0UA/0UF/DUA/DUG/KUA/KUG/QUA/QUG header.

 DESCRIPTION
                                                   9577-0UA/0UF/DUA/DUG/KUA/KUG/QUA/QUG
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     4
  # of 3.5"/5.25" Bays                             1/3
  # of 3.5"/5.25" Bays Available                   0/2
 Selectable Boot                                   Yes
  Bootable Physical Drives                         All
 Diskette Drives Standard                          1x2.88MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (i)
   Media Sensing                                   No
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      Optional (g)
   Media Sensing                                   Yes
  3.5" 2.88MB                                      Optional (g)
   Media Sensing                                   Yes
  3.5" Enhanced 2.88MB                             Optional (i)
   Media Sensing                                   Yes
   Electronic Lock/Eject                           Yes
  Internal Drives Supported                        2
  External Drives Supported                        1
  Maximum # Diskette Drives                        3
 Hard Disk Drives Standard                         1x208MB/212MB
                                                   (0UA/DUA/KUA/QUA) (6h)
                                                   1x400MB (0UF)
                                                   1x540MB (DUG/KUG/QUG) |
  Drive Type                                       SCSI
  Encoding Method                                  RLL
  Drive Form Factor                                3.5"
  Average Access Rate (ms)                         12 (208MB/212MB)
                                                   11.5 (400MB)
                                                   10 (540MB)
  Sector Buffer Size                               32K (208MB/212MB)
                                                   128K (400MB)
                                                   256K (540MB)
  Data Transfer Rate (/Second)                     20.1 Mbits (208MB/212MB)
                                                   2.0 MBytes (400MB)
                                                   3.22 MBytes (540MB)
  Average Latency (ms)                             6.94 (208MB/212MB)
                                                   6.95 (400MB)
                                                   5.55 (540MB)
  Rotational Speed (RPMs)                          4320 (208MB/212MB)
                                                   4316 (400MB)
                                                   6300 (540MB)
  # of Heads                                       4 (208MB/212MB)
                                                   14 (400MB)
                                                   7 (540MB)
  # of Platters                                    2 (208MB/212MB)
                                                   8 (400MB)
                                                   4 (540MB)
  Sectors per Track                                44 (208MB/212MB)
                                                   48 (400MB)
                                                   ?? (540MB)
  Cylinders                                        2009 (208MB/212MB)
                                                   1199 (400MB)
                                                   2466 (540MB)
  Shock Rating (Gs): Operating                     ?? (208MB/212MB)
                                                   10 (400MB/540MB)
            Non-operating                          ?? (208MB/212MB)
                                                   35 (400MB)
                                                   70 (540MB)
  MTBF (Hours)                                     ?? (208MB/212MB)
                                                   150,000 (400MB)
                                                   300,000 (540MB)
  Auto Park                                        Yes
  Interleave Factor                                1:1
  Maximum # of Internal HD Drives                  3
  Optional HD Sizes Available:                     170MB (13ms)
                                                   340MB (13ms)
                                                   540MB (8.7ms)
                                                   1GB (8.6ms)
                                                   2GB (9.5ms)
  Maximum Internal HD Capacity                     6GB (3z)(4o)(5k)(6h)
 Standard Hard Disk Controller Type                SCSI
  Bus Master                                       Yes
   16-bit Adapter                                  Optional
   32-bit Adapter with Cache                       Standard
  # of Devices Supported/Adapter                   7/15 (3r)
  # of Adapters Supported/System                   4
  Controller Data Transfer/second
   Controller to Micro Channel                     16.6 MBytes
   Controller to SCSI devices                      5.0 MBytes

 EXTERNAL EXPANSION UNIT SUPPORT
 IBM 3510 (1-Bay)                                  Yes
 IBM 3511 (7-Bays)                                 Yes
 IBM 3514 (8-Bays, RAID-5, SCSI-2)                 Yes
 IBM 3515 (4-Bays, Streaming Data,
  RAID-0/RAID-1)                                   No

 TAPE STORAGE
 Internal Tape Drive Support
  3.5" Internal Tape Backup Unit                   Yes (9b)
  5.25" QIC SCSI Tape Drive                        No
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        No
 External Tape Drive Support
  5.25" QIC SCSI Tape Drive                        Yes
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        Yes


ΓòÉΓòÉΓòÉ 12.15.1.4. PS/2 Model 77-0UA/0UF/DUA/DUG/KUA/KUG/QUA/QUG: Expansion/Operating System ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77-0UA/0UF/DUA/DUG/KUA/KUG/QUA/QUG header.

 DESCRIPTION
                                                   9577-0UA/0UF/DUA/DUG/KUA/KUG/QUA/QUG
 EXPANSION
 Total Adapter Slots                               5
  # of Long/Short Slots                            5/0
  # of 8/16/32-bit Slots                           0/0/5 (3a)
  # of Slots with Video Extension                  1
 Available Slots                                   4

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        5.00.1 or later
 IBM OS/2                                          2.00.1 (ServicePak Level
                                                   6050) or later
 IBM AIX PS/2                                      1.3.0 or later
 SCO XENIX                                         2.3.4 or later
 SCO UNIX 3.2                                      V.4 or later


ΓòÉΓòÉΓòÉ 12.15.1.5. PS/2 Model 77-0UA/0UF/DUA/DUG/KUA/KUG/QUA/QUG: Keyboard/Security ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77-0UA/0UF/DUA/DUG/KUA/KUG/QUA/QUG header.

 DESCRIPTION
                                                   9577-0UA/0UF/DUA/DUG/KUA/KUG/QUA/QUG
 KEYBOARD
 122-Key Host-Connected Keyboard (6w)              Yes (8p)
 101-Key Enhanced Keyboard                         Yes (8p)
 84-Key Keyboard                                   Yes (8p)
 Japanese Keyboard                                 No
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         10 (3 meters)

 SECURITY
 Vital Product Data (VPD) Enabled                  Yes (5m)
 C2 Security Enabled                               Yes (7j)
 LogicLock Security                                Yes (7j)
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Cable-Down Capability                             No
 Lockable Cable Cover                              No


ΓòÉΓòÉΓòÉ 12.15.1.6. PS/2 Model 77-0UA/0UF/DUA/DUG/KUA/KUG/QUA/QUG: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

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 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77-0UA/0UF/DUA/DUG/KUA/KUG/QUA/QUG header.

 DESCRIPTION
                                                   9577-0UA/0UF/DUA/DUG/KUA/KUG/QUA/QUG
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
  Orientation                                      Horizontal/Vertical (6y)
  Vertical-Mount Floor Stand                       Standard
 Dimensions: Height                                6.7"
        Width                                      17.3"
        Depth                                      15.5"
 Weight (lbs):                                     26.0

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              197
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Manual
 Amperage at:  90-137 VAC                          4.6
        180-265 VAC                                2.0
 Operating Range: Temperature                      50-95┬░ F
           Rel. Humidity                           8-85%
 Maximum Current Leakage (uA)                      <500
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  158
 Noise (Avg dB, Operating, 1m)                     50
    Classification                                 3D

 MISCELLANEOUS
 Software Included                                 OS/2 2.00.1 (0UA/0UF)
                                                   DOS 5.02/Win 3.1 (QUA/QUG)
                                                   OS/2 2.1 (KUA/KUG)
                                                   Choice of DOS 5.02/Win 3.1,
                                                   DOS 6.1/Win 3.1, OS/2
                                                   2.00.1, or OS/2 2.1
                                                   (DUA/DUG)
 FCC Classification                                B
 UL Approval                                       UL 1950, 1st Edition
 CSA Approval                                      CSA22.2 No. 220-M1986
 Warranty Period                                   3 Years
  On-site/Carry-in                                 On-site
  Int'l Traveler's Warranty Service                No
  Countries Warranty Valid In                      N/A
 BIOS Model/Submodel/Revision                      F8/41/03
 BIOS Date                                         08/03/92
 Date Announced                                    09/21/92 (0UA/0UF)
                                                   05/04/93 (QUA/QUG)
                                                   05/25/93 (KUA/KUG)
                                                   07/13/93 (DUA/DUG)
 Date Withdrawn                                    07/26/93 (0UA/0UF)
                                                   08/16/93 (KUA/KUG/QUA/QUG)
                                                   04/14/95 (DU6/DUA/DUG)


ΓòÉΓòÉΓòÉ 12.15.1.7. PS/2 Model 77-0UA/0UF/DUA/DUG/KUA/KUG/QUA/QUG: Limitations ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 77-0UA/0UF/DUA/DUG/KUA/KUG/QUA/QUG header.

 The following options and adapters are Not supported by this system.

     3363 Optical (WORM) Disk Drive models A11, B01
     5.25" 360K External Diskette Drive Adapter/A (6450245/#8760)
     5.25" 1.2MB Internal Diskette Drive (6451006; replaced by 6451066)
     All memory adapters
     All SIMMs except 2MB/4MB/8MB 70ns
     ARTIC PortMaster Adapter/A (53F2601/53F2604/53F2607) and options
     CD-ROM Drive (6450845/#0845; replaced by 6451113/#1113)
     Image Adapter/A (07F4400/#4324; replaced by 06G8215/#0072)
     Image Adapter/A 1MB (44F9626/#0072; replaced by 06G8215/#0072), 3MB
      (69F9724/#0073; replaced by 06G8216/#0073), 3MB 6091 (44F9621/#0074;
      replaced by 06G8217/#0074)


ΓòÉΓòÉΓòÉ 12.16. PS/2 Model 77 486DX2 Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
486DX2-based Model 77 systems.

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 66/33MHz Systems
 PS/2 Model 77-0NA/0NF/DNA/DNG/KNA/KNG/QNA/QNG

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 12.16.1. PS/2 Model 77-0NA/0NF/DNA/DNG/KNA/KNG/QNA/QNG Tech Specs ΓòÉΓòÉΓòÉ

The PS/2 Models 77-0NA/0NF/DNA/DNG/KNA/KNG/QNA/QNG are identical except for the
hard disk drive used, and the operating system included.  Therefore all models
will be covered by this one document. Differences will be indicated by model
number in parentheses.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Jump directly to the PS/2 Model 77 486DX2 Systems header.


ΓòÉΓòÉΓòÉ 12.16.1.1. PS/2 Model 77-0NA/0NF/DNA/DNG/KNA/KNG/QNA/QNG: Architecture/Memory ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77-0NA/0NF/DNA/DNG/KNA/KNG/QNA/QNG header.

 DESCRIPTION
                                                   9577-0NA/0NF/DNA/DNG/KNA/KNG/QNA/QNG
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    Intel 486DX2
 Uses 3.3 Volt Technology                          No
 Clock Multiplying                                 Yes (2X)
 Clock Speed (MHz)
  Internal                                         66
  External                                         33
 Internal/External Cache                           (4u)
  Internal Cache Size                              8K
  External Cache Size Standard                     128K
  External Cache Size Maximum                      256K
 Instruction Set                                   32 bit
 Addressing                                        32 bit
 I/O Channel Width                                 32 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          40 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
  DMA Burst Mode Supported                         ???
  24/32-bit DMA Controller                         24
 Upgradeable Processor                             Yes
  Processor Complex/OverDrive Socket               N/A
  Processor Upgrades Available                     None
 Bus Masters Supported                             15
 Page Memory Logic                                 Yes

 MEMORY
 Standard (Motherboard)                            8MB (2h)
 Maximum (Motherboard)                             32MB
 Maximum (System)                                  32MB (2r)
 Total # of Motherboard SIMM Sockets               4
 # of Motherboard SIMM Sockets Available           3
 Standard Memory Speed (ns)                        70
 Memory Type                                       DRAM
  Memory Interleaving                              Yes
 Wait States: Motherboard                          0
        Adapter                                    N/A (8q)
 Memory Used: Motherboard                          2/4/8MB SIMMs (70ns)


ΓòÉΓòÉΓòÉ 12.16.1.2. PS/2 Model 77-0NA/0NF/DNA/DNG/KNA/KNG/QNA/QNG: Standard Features ΓòÉΓòÉΓòÉ

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and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77-0NA/0NF/DNA/DNG/KNA/KNG/QNA/QNG header.

 DESCRIPTION
                                                   9577-0NA/0NF/DNA/DNG/KNA/KNG/QNA/QNG
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 BIOS Extensions Stored on Disk                    Yes (5v)
 Setup & Diags Stored on Disk                      Yes (5v)
 Optional Math Coprocessor                         Built-in
  Coprocessor Speed                                66 MHz
 Standard Graphics                                 XGA-2
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Adapter
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
  Resolutions Supported                            640x480 64K Colors
                                                   800x600 64K Colors
                                                   1024x768 256 Colors
                                                   1280x1024 16 Colors
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 Maximum Graphics                                  XGA-2
 RS232C Serial Ports                               2
  9/25-Pin                                         9-pin
  UART Chip Used                                   NS16550A-compatible custom
                                                   gate array
  Maximum Speed (bits/second)                      345,600
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
  IBM Mouse Included                               Yes
   Mouse Resolution                                Up to 200 DPI, programmable
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 SCSI port                                         Yes
  Fast or Fast/Wide                                Fast
  Internal/External Connectors                     Both
  On Motherboard/Adapter                           Adapter


ΓòÉΓòÉΓòÉ 12.16.1.3. PS/2 Model 77-0NA/0NF/DNA/DNG/KNA/KNG/QNA/QNG: Disk/Tape Storage ΓòÉΓòÉΓòÉ

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and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77-0NA/0NF/DNA/DNG/KNA/KNG/QNA/QNG header.

 DESCRIPTION
                                                   9577-0NA/0NF/DNA/DNG/KNA/KNG/QNA/QNG
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     4
  # of 3.5"/5.25" Bays                             1/3
  # of 3.5"/5.25" Bays Available                   0/2
 Selectable Boot                                   Yes
  Bootable Physical Drives                         All
 Diskette Drives Standard                          1x2.88MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (i)
   Media Sensing                                   No
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      Optional (g)
   Media Sensing                                   Yes
  3.5" 2.88MB                                      Optional (g)
   Media Sensing                                   Yes
  3.5" Enhanced 2.88MB                             Optional (i)
   Media Sensing                                   Yes
   Electronic Lock/Eject                           Yes
  Internal Drives Supported                        2
  External Drives Supported                        1
  Maximum # Diskette Drives                        3
 Hard Disk Drives Standard                         1x212MB (0NA/DNA/KNA/QNA)
                                                   (6h)
                                                   1x400MB (0NF)
                                                   1x540MB (DNG/KNG/QNG) (6h)
  Drive Type                                       SCSI
  Encoding Method                                  RLL
  Drive Form Factor                                3.5"
  Average Access Rate (ms)                         12 (212MB)
                                                   11.5 (400MB)
                                                   10 (540MB)
  Sector Buffer Size                               32K (212MB)
                                                   128K (400MB)
                                                   256K (540MB)
  Data Transfer Rate (/Second)                     20.1 Mbits (212MB)
                                                   2.0 MBytes (400MB)
                                                   3.22 MBytes (540MB)
  Average Latency (ms)                             6.94 (212MB)
                                                   6.95 (400MB)
                                                   5.55 (540MB)
  Rotational Speed (RPMs)                          4320 (212MB)
                                                   4316 (400MB)
                                                   6300 (540MB)
  # of Heads                                       4 (212MB)
                                                   14 (400MB)
                                                   7 (540MB)
  # of Platters                                    2 (212MB)
                                                   8 (400MB)
                                                   4 (540MB)
  Sectors per Track                                44 (212MB)
                                                   48 (400MB)
                                                   ?? (540MB)
  Cylinders                                        2009 (212MB)
                                                   1199 (400MB)
                                                   2466 (540MB)
  Shock Rating (Gs): Operating                     ?? (212MB)
                                                   10 (400MB/540MB)
            Non-operating                          ?? (212MB)
                                                   35 (400MB)
                                                   70 (540MB)
  MTBF (Hours)                                     ?? (212MB)
                                                   150,000 (400MB)
                                                   300,000 (540MB)
  Auto Park                                        Yes
  Interleave Factor                                1:1
  Maximum # of Internal HD Drives                  3
  Optional HD Sizes Available:                     170MB (13ms)
                                                   340MB (13ms)
                                                   540MB (8.7ms)
                                                   1GB (8.6ms)
                                                   2GB (9.5ms)
  Maximum Internal HD Capacity                     6GB (3z)(4o)(5k)(6h)
 Standard Hard Disk Controller Type                SCSI
  Bus Master                                       Yes
   16-bit Adapter                                  Optional
   32-bit Adapter with Cache                       Standard
  # of Devices Supported/Adapter                   7/15  (3r)
  # of Adapters Supported/System                   4
  Controller Data Transfer/second
   Controller to Micro Channel                     16.6 MBytes
   Controller to SCSI devices                      5.0 MBytes
 Internal Rewritable Optical Disk Drives           Optional
  Maximum Internal Drives Supported                1 (5k)
 Internal Optical CD-ROM Drives                    Optional
  Maximum Internal Drives Supported                1 (5k)

 EXTERNAL EXPANSION UNIT SUPPORT
 IBM 3510 (1-Bay)                                  Yes
 IBM 3511 (7-Bays)                                 Yes
 IBM 3514 (8-Bays, RAID-5, SCSI-2)                 Yes
 IBM 3515 (4-Bays, Streaming Data,
  RAID-0/RAID-1)                                   No

 TAPE STORAGE
 Internal Tape Drive Support
  3.5" Internal Tape Backup Unit                   Yes (9b)
  5.25" QIC SCSI Tape Drive                        No
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        No
 External Tape Drive Support
  5.25" QIC SCSI Tape Drive                        Yes
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        Yes


ΓòÉΓòÉΓòÉ 12.16.1.4. PS/2 Model 77-0NA/0NF/DNA/DNG/KNA/KNG/QNA/QNG: Expansion/Operating System ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77-0NA/0NF/DNA/DNG/KNA/KNG/QNA/QNG header.

 DESCRIPTION
                                                   9577-0NA/0NF/DNA/DNG/KNA/KNG/QNA/QNG
 EXPANSION
 Total Adapter Slots                               5
  # of Long/Short Slots                            5/0
  # of 8/16/32-bit Slots                           0/0/5 (3a)
  # of Slots with Video Extension                  1
 Available Slots                                   4

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        5.00.1 or later
 IBM OS/2                                          2.00.1 (ServicePak Level
                                                   6050) or later
 IBM AIX PS/2                                      1.3 or later
 SCO XENIX                                         2.3.4 or later
 SCO UNIX 3.2                                      V.4 or later


ΓòÉΓòÉΓòÉ 12.16.1.5. PS/2 Model 77-0NA/0NF/DNA/DNG/KNA/KNG/QNA/QNG: Keyboard/Security ΓòÉΓòÉΓòÉ

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 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77-0NA/0NF/DNA/DNG/KNA/KNG/QNA/QNG header.

 DESCRIPTION
                                                   9577-0NA/0NF/DNA/DNG/KNA/KNG/QNA/QNG
 KEYBOARD
 122-Key Host-Connected Keyboard (6w)              Yes (8p)
 101-Key Enhanced Keyboard                         Yes (8p)
 84-Key Keyboard                                   Yes (8p)
 Japanese Keyboard                                 No
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         10 (3 meters)

 SECURITY
 Vital Product Data (VPD) Enabled                  Yes (5m)
 C2 Security Enabled                               Yes (7j)
 LogicLock Security                                Yes (7j)
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Cable-Down Capability                             No
 Lockable Cable Cover                              No


ΓòÉΓòÉΓòÉ 12.16.1.6. PS/2 Model 77-0NA/0NF/DNA/DNG/KNA/KNG/QNA/QNG: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

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 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77-0NA/0NF/DNA/DNG/KNA/KNG/QNA/QNG header.

 DESCRIPTION
                                                   9577-0NA/0NF/DNA/DNG/KNA/KNG/QNA/QNG
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
  Orientation                                      Horizontal/Vertical (6y)
  Vertical-Mount Floor Stand                       Standard
 Dimensions: Height                                6.7"
        Width                                      17.3"
        Depth                                      15.5"
 Weight (lbs):                                     26.0

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              197
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Manual
 Amperage at:  90-137 VAC                          4.6
        180-265 VAC                                2.0
 Operating Range: Temperature                      50-95┬░ F
           Rel. Humidity                           8-85%
 Maximum Current Leakage (uA)                      <500
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  158
 Noise (Avg dB, Operating, 1m)                     50
    Classification                                 3D

 MISCELLANEOUS
 Software Included                                 OS/2 2.00.1 (0NA/0NF)
                                                   DOS 5.02/Win 3.1 (QNA/QNG)
                                                   OS/2 2.1 (KNA/KNG)
                                                   Choice of DOS 5.02/Win 3.1,
                                                   DOS 6.1/Win 3.1, OS/2
                                                   2.00.1, or OS/2 2.1
                                                   (DNA/DNG)
 FCC Classification                                B
 UL Approval                                       UL 1950, 1st Edition
 CSA Approval                                      CSA22.2 No. 220-M1986
 Warranty Period                                   3 Years
  On-site/Carry-in                                 On-site
  Int'l Traveler's Warranty Service                No
  Countries Warranty Valid In                      N/A
 BIOS Model/Submodel/Revision                      F8/41/05
 BIOS Dates                                        03Aug92
                                                   28Oct92
 Date Announced                                    09/21/92 (0NA/0NF)
                                                   05/04/93 (QNA/QNG)
                                                   05/25/93 (KNA/KNG)
                                                   07/13/93 (DNA/DNG)
 Date Withdrawn                                    07/26/93 (0NA/0NF)
                                                   08/16/93 (KNA/KNG/QNA/QNG)
                                                   04/14/95 (DNA/DNG)


ΓòÉΓòÉΓòÉ 12.16.1.7. PS/2 Model 77-0NA/0NF/DNA/DNG/KNA/KNG/QNA/QNG: Limitations ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 77-0NA/0NF/DNA/DNG/KNA/KNG/QNA/QNG header.

 The following options and adapters are Not supported by this system.

     3363 Optical (WORM) Disk Drive models A11, B01
     5.25" 360K External Diskette Drive Adapter/A (6450245/#8760)
     5.25" 1.2MB Internal Diskette Drive (6451006; replaced by 6451066)
     All memory adapters
     All SIMMs except 2MB/4MB/8MB 70ns
     ARTIC PortMaster Adapter/A (53F2601/53F2604/53F2607) and options
     CD-ROM Drive (6450845/#0845; replaced by 6451113/#1113)
     Image Adapter/A (07F4400/#4324; replaced by 06G8215/#0072)
     Image Adapter/A 1MB (44F9626/#0072; replaced by 06G8215/#0072), 3MB
      (69F9724/#0073; replaced by 06G8216/#0073), 3MB 6091 (44F9621/#0074;
      replaced by 06G8217/#0074)


ΓòÉΓòÉΓòÉ 12.17. PS/2 Model 77i 486SX Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
486SX-based PS/2 Model 77i systems.

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and Enter keys, to select the section to which you wish to jump, below:

 33MHz Systems
 PS/2 Model 9577-AUB

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 12.17.1. PS/2 Model 77i-AUB Tech Specs ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
PS/2 Model 77i-AUB system.

Note:  This model has been withdrawn from marketing.

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating System
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Jump directly to the PS/2 Model 77i 486SX System header.


ΓòÉΓòÉΓòÉ 12.17.1.1. PS/2 Model 77i-AUB: Architecture/Memory ΓòÉΓòÉΓòÉ

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 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77i-AUB header.

 DESCRIPTION                                       9577-AUB
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    Intel 486SX
 Uses 3.3 Volt Technology                          No
 Clock Multiplying                                 No
 Clock Speed (MHz)
  Internal                                         33
  External                                         33
 Internal/External Cache                           (4u)
  Internal Cache Size                              8K
  External Cache Size Standard                     0K
  External Cache Size Maximum                      0K
 Instruction Set                                   32 bit
 Addressing                                        32 bit
 I/O Channel Width                                 32 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          40 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      8 (4m)
  DMA Burst Mode Supported                         Yes
  24/32-bit DMA Controller                         32
 Upgradeable Processor                             Yes
  Processor Complex/OverDrive Socket               OverDrive
 Bus Masters Supported                             15
 Page Memory Logic                                 Yes

 MEMORY
 Standard (Motherboard)                            8MB DRAM (2h)
 Maximum (System)                                  64MB DRAM or ECC (2r)(8q)
 Total # of Motherboard SIMM Sockets               4
 # of Motherboard SIMM Sockets Available           3
 Standard Memory Speed (ns)                        70
 Memory Type                                       DRAM
  Memory Interleaving                              No
 Wait States:                                      0-2
 Memory Used:                                      4/8/16MB DRAM SIMMs (70ns)
                                                   (8q)
                                                   8/16MB ECC SIMMs (70ns) (8q)


ΓòÉΓòÉΓòÉ 12.17.1.2. PS/2 Model 77i-AUB: Standard Features ΓòÉΓòÉΓòÉ

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and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating System
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77i-AUB header.

 DESCRIPTION                                       9577-AUB
 STANDARD FEATURES
 BIOS                                              SurePath
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 BIOS Extensions Stored on Disk                    Yes (5v)
 Setup & Diags Stored on Disk                      Yes (5v)
 Optional Math Coprocessor                         No
  Coprocessor Speed                                N/A
 Standard Graphics                                 Ehanced local Bus
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Motherboard
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
    Maximum Video Memory                           2MB
  Video Chipset                                    S3 928
  Resolutions Supported with Standard              640x480x16M Colors
   1MB DRAM                                        800x600x64K Colors
                                                   1024x768x256 Colors
                                                   1280x1024x16 Colors
  MediaBurst Full-Screen Video Playback            Optional
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     ??
 Compatible Graphics                               VGA/EGA/CGA/MCGA/SVGA
 RS232C Serial Ports                               2
  9/25-Pin                                         9-pin
  UART Chip Used                                   NS16550A type 4
  Maximum Speed (bits/second)                      345,600
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
  IBM Mouse Included                               Yes with all
                                                   Non-TrackPointII Keyboards
   Mouse Resolution                                Up to 400 DPI, programmable
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 SCSI port                                         Requires optional adapter


ΓòÉΓòÉΓòÉ 12.17.1.3. PS/2 Model 77i-AUB: Disk/Tape Storage ΓòÉΓòÉΓòÉ

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 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating System
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77i-AUB header.

 DESCRIPTION                                       9577-AUB
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     4
  # of 3.5"/5.25" Bays                             1/3
  # of 3.5"/5.25" Bays Available                   0/2
 Selectable Boot                                   Yes
  Bootable Physical Drives                         All
 Diskette Drives Standard                          1x2.88MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (i)
   Media Sensing                                   No
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      Optional (g)
   Media Sensing                                   Yes
  3.5" 2.88MB                                      Optional (g)
   Media Sensing                                   Yes
  3.5" Enhanced 2.88MB                             Optional (i)
   Media Sensing                                   Yes
   Electronic Lock/Eject                           Yes
  Internal Drives Supported                        3
  External Drives Supported                        ?
  Maximum # Diskette Drives                        3
 Hard Disk Drives Standard                         270MB
  Drive Type                                       IDE
  Encoding Method                                  RLL
  Drive Form Factor                                3.5"
  Average Access Rate (ms)                         ??
  Sector Buffer Size                               ??
  Data Transfer Rate (/Second)                     ??
  Average Latency (ms)                             ??
  Rotational Speed (RPMs)                          ??
  # of Heads                                       ??
  # of Platters                                    ??
  Sectors per Track                                ??
  Cylinders                                        ??
  Shock Rating (Gs): Operating                     ??
            Non-operating                          ??
  MTBF (Hours)                                     ??
  Auto Park                                        Yes
  Interleave Factor                                1:1
  Maximum # of Internal HD Drives                  3
  Optional HD Sizes Available:                     ??
  Maximum Internal HD Capacity                     ?? (3z)(4o)(5k)(6h)
 Standard Hard Disk Controller Type                EIDE
  Bus Master                                       Yes
   16-bit Adapter                                  ??
   32-bit Adapter                                  ??
  # of Devices Supported/Adapter                   4
  # of Adapters Supported/System                   1
  Controller Data Transfer/second                  ??
   Controller to Micro Channel                     ??

 TAPE STORAGE
 Internal Tape Drive Support                       Yes
  3.5" Tape Drives                                 Yes
  5.25" Tape Drives                                Yes
 External Tape Drive Support                       Yes
  SCSI Tape Drives                                 Yes (with optional SCSI
                                                   adapter)
  Parallel Tape Drives                             Yes


ΓòÉΓòÉΓòÉ 12.17.1.4. PS/2 Model 77i-AUB: Expansion/Operating System ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating System
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77i-AUB header.

 DESCRIPTION                                       9577-AUB
 EXPANSION
 Total Adapter Slots                               5
  # of Long/Short Slots                            5/0
  # of 8/16/32-bit Slots                           0/0/5 (3a)
  # of Slots with Video Extension                  1
 Available Slots                                   5

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        5.00.1 or later ??
 IBM OS/2                                          2.00.1 (ServicePak Level
                                                   6050) or later ??
 IBM AIX PS/2                                      1.3 or later ??
 SCO XENIX                                         2.3.4 or later ??
 SCO UNIX 3.2                                      V.4 or later ??


ΓòÉΓòÉΓòÉ 12.17.1.5. PS/2 Model 77i-AUB: Keyboard/Security ΓòÉΓòÉΓòÉ

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 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating System
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77i-AUB header.

 DESCRIPTION                                       9577-AUB
 KEYBOARD
 122-Key Host Connected Keyboard (6w)              Yes (8p)
 106-Key Enhanced Keyboard (Japanese)              Yes (8p)
 102-Key Enhanced Keyboard (LA Spanish)            Yes (8p)
 101-Key Enhanced Keyboard                         Yes (8p)
 101-Key Quiet Touch Keyboard                      Yes (8p)
 101-Key Enhanced Keyboard With TrackPoint II      Yes (8p)
 84-Key Quiet Touch With TrackPoint II             Yes (8p)
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         7.5 (Default Keyboard)

 SECURITY
 Vital Product Data (VPD) Enabled                  Yes (5m)
 Cable/Bolt Down Capability                        Yes
 Lockable Cable Cover With Key Lock                Yes
 Tamper Evident Covers                             Yes
 Power on Password                                 Yes
 Privileged Access Password                        Yes
 Keyboard Password                                 Yes (operating system)
 Secure IPL source                                 Yes
 Secure Configuration                              Yes
 Secure Access Openings                            Yes
 Security Cable Cover for I/O cables               Optional
 Secured removable media via 2.88MB
   Electronic Eject Diskette Drive                 Optional


ΓòÉΓòÉΓòÉ 12.17.1.6. PS/2 Model 77i-AUB: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

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 Disk/Tape Storage                                 Expansion/Operating System
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77i-AUB header.

 DESCRIPTION                                       9577-AUB
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
  Orientation                                      Horizontal/Vertical (6y)
  Vertical-Mount Floor Stand                       Standard
 Dimensions: Height                                6.6"
        Width                                      17.3"
        Depth                                      15.5"
 Weight (lbs):                                     26.0

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              197
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Automatic
 Amperage at:  90-137 VAC                          4.6
        180-265 VAC                                2.0
 Operating Range: Temperature                      50-95┬░ F
           Rel. Humidity                           8-85%
 Maximum Current Leakage (uA)                      <500 ??
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  158
 Noise (Avg dB, Operating, 1m)                     5.0
    Classification                                 B

 MISCELLANEOUS
 Software Choices                                  IBM PC DOS 5.02 and Windows
                                                   3.1,
                                                   IBM PC DOS 6.1 and Windows
                                                   3.1,
                                                   IBM PC DOS 6.3 and Windows
                                                   3.11,
                                                   IBM OS/2 2.1, or
                                                   IBM OS/2 2.11
 FCC Classification                                B
 UL Approval                                       UL 1950, 1st Edition
 CSA Approval                                      CSA22.2 No. 950
 Warranty Period                                   3 Years
  On-site/Carry-in                                 On-site
  Int'l Traveler's Warranty Service                No
  Countries Warranty Valid In                      N/A
 BIOS Model/Submodel/Revision                      ??/??/??
 BIOS Date                                         ??????
 Date Announced                                    14Jun94
 Date Withdrawn                                    13Nov95


ΓòÉΓòÉΓòÉ 12.17.1.7. PS/2 Model 77i-AUB: Limitations ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
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 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 77i-AUB header.

     The System support only 4MB, 8MB and 16MB 70-nanosecond single in-line
      memory modules (SIMM).
 The following Micro Channel adapters, option and cables are NOT supported by
 the IBM Personal System/2 76/77i and 76/77s:

     IBM PS/2 8514 Display Adapter/A (4054)(1887972)
     IBM PS/2 Micro Channel SCSI Adapter (1005)(6451109)
     IBM PS/2 Micro Channel SCSI Adapter with Cache (1018)(6451110)
     IBM Mwave WindSurfer-MCA Communication Adapter/A (7058)(82G7058)


ΓòÉΓòÉΓòÉ 12.18. PS/2 Model 77i 486DX2 Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
486DX2-based Model 77i systems.

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 66MHz Systems
 PS/2 Model 9577-ANB/ANG

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 12.18.1. PS/2 Model 77i-ANB/ANG Tech Specs ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
PS/2 Models 77i -ANB and -ANG systems.  They are identical except for the hard
disk drive used.  Therefore both models will be covered by this one document.
Differences will be indicated by model number in parentheses.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Jump directly to the PS/2 Model 77i 486DX2 Systems header.


ΓòÉΓòÉΓòÉ 12.18.1.1. PS/2 Model 77i-ANB/ANG: Architecture/Memory ΓòÉΓòÉΓòÉ

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 Limitations

 Return to the 77i-ANB/ANG header.

 DESCRIPTION                                       9577-ANB/ANG
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    Intel 486DX2
 Uses 3.3 Volt Technology                          No
 Clock Multiplying                                 Yes (2X)
 Clock Speed (MHz)
  Internal                                         66
  External                                         33
 Internal/External Cache                           (4u)
  Internal Cache Size                              8K
  External Cache Size Standard                     128K Write-Back
  External Cache Size Maximum                      256K Write-Back
 Instruction Set                                   32 bit
 Addressing                                        32 bit
 I/O Channel Width                                 32 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          40 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      8 (4m)
  DMA Burst Mode Supported                         Yes
  24/32-bit DMA Controller                         32
 Upgradeable Processor                             Yes
  Processor Complex/OverDrive Socket               OverDrive
 Bus Masters Supported                             15
 Page Memory Logic                                 Yes

 MEMORY
 Standard (Motherboard)                            8MB DRAM (2h)
 Maximum (System)                                  64MB DRAM or ECC (2r)(8q)
 Total # of Motherboard SIMM Sockets               4
 # of Motherboard SIMM Sockets Available           3
 Standard Memory Speed (ns)                        70
 Memory Type                                       DRAM
  Memory Interleaving                              No
 Wait States:                                      0-2
 Memory Used:                                      4/8/16MB DRAM SIMMs (70ns)
                                                   (8q)
                                                   8/16MB ECC SIMMs (70ns) (8q)


ΓòÉΓòÉΓòÉ 12.18.1.2. PS/2 Model 77i-ANB/ANG: Standard Features ΓòÉΓòÉΓòÉ

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 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77i-ANB/ANG header.

 DESCRIPTION                                       9577-ANB/ANG
 STANDARD FEATURES
 BIOS                                              SurePath
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 BIOS Extensions Stored on Disk                    Yes (5v)
 Setup & Diags Stored on Disk                      Yes (5v)
 Optional Math Coprocessor                         Yes
  Coprocessor Speed                                66
 Standard Graphics                                 Ehanced local Bus
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Motherboard
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
    Maximum Video Memory                           2MB
  Video Chipset                                    S3 928
  Resolutions Supported with Standard              640x480x16M Colors
   1MB DRAM                                        800x600x64K Colors
                                                   1024x768x256 Colors
                                                   1280x1024x16 Colors
  MediaBurst Full-Screen Video Playback            Optional
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     ??
 Compatible Graphics                               VGA/EGA/CGA/MCGA/SVGA
 RS232C Serial Ports                               2
  9/25-Pin                                         9-pin
  UART Chip Used                                   NS16550A type 4
  Maximum Speed (bits/second)                      345,600
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
  IBM Mouse Included                               Yes with all
                                                   Non-TrackPointII Keyboards
   Mouse Resolution                                Up to 400 DPI, programmable
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 SCSI port                                         Requires optional adapter


ΓòÉΓòÉΓòÉ 12.18.1.3. PS/2 Model 77i-ANB/ANG: Disk/Tape Storage ΓòÉΓòÉΓòÉ

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 Limitations

 Return to the 77i-ANB/ANG header.

 DESCRIPTION                                       9577-ANB/ANG
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     4
  # of 3.5"/5.25" Bays                             1/3
  # of 3.5"/5.25" Bays Available                   0/2
 Selectable Boot                                   Yes
  Bootable Physical Drives                         All
 Diskette Drives Standard                          1x2.88MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (i)
   Media Sensing                                   No
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      Optional (g)
   Media Sensing                                   Yes
  3.5" 2.88MB                                      Optional (g)
   Media Sensing                                   Yes
  3.5" Enhanced 2.88MB                             Optional (i)
   Media Sensing                                   Yes
   Electronic Lock/Eject                           Yes
  Internal Drives Supported                        3
  External Drives Supported                        ?
  Maximum # Diskette Drives                        3
 Hard Disk Drives Standard                         270MB (ANB)
                                                   527MB (ANG)
  Drive Type                                       IDE
  Encoding Method                                  RLL
  Drive Form Factor                                3.5"
  Average Access Rate (ms)                         ??
  Sector Buffer Size                               ??
  Data Transfer Rate (/Second)                     ??
  Average Latency (ms)                             ??
  Rotational Speed (RPMs)                          ??
  # of Heads                                       ??
  # of Platters                                    ??
  Sectors per Track                                ??
  Cylinders                                        ??
  Shock Rating (Gs): Operating                     ??
            Non-operating                          ??
  MTBF (Hours)                                     ??
  Auto Park                                        Yes
  Interleave Factor                                1:1
  Maximum # of Internal HD Drives                  3
  Optional HD Sizes Available:                     ??
  Maximum Internal HD Capacity                     ?? (3z)(4o)(5k)(6h)
 Standard Hard Disk Controller Type                EIDE
  Bus Master                                       Yes
   16-bit Adapter                                  ??
   32-bit Adapter                                  ??
  # of Devices Supported/Adapter                   4
  # of Adapters Supported/System                   1
  Controller Data Transfer/second                  ??
   Controller to Micro Channel                     ??

 TAPE STORAGE
 Internal Tape Drive Support                       Yes
  3.5" Tape Drives                                 Yes
  5.25" Tape Drives                                Yes
 External Tape Drive Support                       Yes
  SCSI Tape Drives                                 Yes (with optional SCSI
                                                   adapter)
  Parallel Tape Drives                             Yes


ΓòÉΓòÉΓòÉ 12.18.1.4. PS/2 Model 77i-ANB/ANG: Expansion/Operating Systems ΓòÉΓòÉΓòÉ

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 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77i-ANB/ANG header.

 DESCRIPTION                                       9577-ANB/ANG
 EXPANSION
 Total Adapter Slots                               5
  # of Long/Short Slots                            5/0
  # of 8/16/32-bit Slots                           0/0/5 (3a)
  # of Slots with Video Extension                  1
 Available Slots                                   5

 OPERATING Systems SUPPORT
 IBM PC-DOS                                        5.00.1 or later ??
 IBM OS/2                                          2.00.1 (ServicePak Level
                                                   6050) or later ??
 IBM AIX PS/2                                      1.3 or later ??
 SCO XENIX                                         2.3.4 or later ??
 SCO UNIX 3.2                                      V.4 or later ??


ΓòÉΓòÉΓòÉ 12.18.1.5. PS/2 Model 77i-ANB/ANG: Keyboard/Security ΓòÉΓòÉΓòÉ

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 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77i-ANB/ANG header.

 DESCRIPTION                                       9577-ANB/ANG
 KEYBOARD
 122-Key Host Connected Keyboard (6w)              Yes (8p)
 106-Key Enhanced Keyboard (Japanese)              Yes (8p)
 102-Key Enhanced Keyboard (LA Spanish)            Yes (8p)
 101-Key Enhanced Keyboard                         Yes (8p)
 101-Key Quiet Touch Keyboard                      Yes (8p)
 101-Key Enhanced Keyboard With TrackPoint II      Yes (8p)
 84-Key Quiet Touch With TrackPoint II             Yes (8p)
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         7.5 (Default Keyboard)

 SECURITY
 Vital Product Data (VPD) Enabled                  Yes (5m)
 Cable/Bolt Down Capability                        Yes
 Lockable Cable Cover With Key Lock                Yes
 Tamper Evident Covers                             Yes
 Power on Password                                 Yes
 Privileged Access Password                        Yes
 Keyboard Password                                 Yes (operating Systems)
 Secure IPL source                                 Yes
 Secure Configuration                              Yes
 Secure Access Openings                            Yes
 Security Cable Cover for I/O cables               Optional
 Secured removable media via 2.88MB
   Electronic Eject Diskette Drive                 Optional


ΓòÉΓòÉΓòÉ 12.18.1.6. PS/2 Model 77i-ANB/ANG: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

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 Limitations

 Return to the 77i-ANB/ANG header.

 DESCRIPTION                                       9577-ANB/ANG
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
  Orientation                                      Horizontal/Vertical (6y)
  Vertical-Mount Floor Stand                       Standard
 Dimensions: Height                                6.6"
        Width                                      17.3"
        Depth                                      15.5"
 Weight (lbs):                                     26.0

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              197
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Automatic
 Amperage at:  90-137 VAC                          4.6
        180-265 VAC                                2.0
 Operating Range: Temperature                      50-95┬░ F
           Rel. Humidity                           8-85%
 Maximum Current Leakage (uA)                      <500 ??
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  158
 Noise (Avg dB, Operating, 1m)                     5.0
    Classification                                 B

 MISCELLANEOUS
 Software Choices                                  IBM PC DOS 5.02 and Windows
                                                   3.1,
                                                   IBM PC DOS 6.1 and Windows
                                                   3.1,
                                                   IBM PC DOS 6.3 and Windows
                                                   3.11,
                                                   IBM OS/2 2.1, or
                                                   IBM OS/2 2.11
 FCC Classification                                B
 UL Approval                                       UL 1950, 1st Edition
 CSA Approval                                      CSA22.2 No. 950
 Warranty Period                                   3 Years
  On-site/Carry-in                                 On-site
  Int'l Traveler's Warranty Service                No
  Countries Warranty Valid In                      N/A
 BIOS Model/Submodel/Revision                      ??/??/??
 BIOS Date                                         ??????
 Date Announced                                    14Jun94
 Date Withdrawn                                    13Nov95


ΓòÉΓòÉΓòÉ 12.18.1.7. PS/2 Model 77i-ANB/ANG: Limitations ΓòÉΓòÉΓòÉ

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and Enter keys, to select the section to which you wish to jump, below:

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 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 77i-ANB/ANG header.

     The Systems support only 4MB, 8MB and 16MB 70-nanosecond single in-line
      memory modules (SIMM).
 The following Micro Channel adapters, option and cables are NOT supported by
 the IBM Personal Systems/2 76/77i and 76/77s:

     IBM PS/2 8514 Display Adapter/A (4054)(1887972)
     IBM PS/2 Micro Channel SCSI Adapter (1005)(6451109)
     IBM PS/2 Micro Channel SCSI Adapter with Cache (1018)(6451110)
     IBM Mwave WindSurfer-MCA Communication Adapter/A (7058)(82G7058)


ΓòÉΓòÉΓòÉ 12.19. PS/2 Model 77i 486DX4 Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
DX4-based Model 77i systems.

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 100MHz Systems
 PS/2 Models 77i-ATB/ATG

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 12.19.1. PS/2 Model 77i-ATB/ATG Tech Specs ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
PS/2 Models 77i -ATB and -ATG systems.  They are identical except for the hard
disk drive used.  Therefore both models will be covered by this one document.
Differences will be indicated by model number in parentheses.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Jump directly to the PS/2 Model 77i DX4 Systems header.


ΓòÉΓòÉΓòÉ 12.19.1.1. PS/2 Model 77i-ATB/ATG: Architecture/Memory ΓòÉΓòÉΓòÉ

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 Limitations

 Return to the 77i-ATB/ATG header.

 DESCRIPTION                                       9577-ATB/ATG
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    Intel 486DX4
 Uses 3.3 Volt Technology                          No
 Clock Multiplying                                 Yes (3X)
 Clock Speed (MHz)
  Internal                                         100
  External                                         33
 Internal/External Cache                           (4u)
  Internal Cache Size                              16K
  External Cache Size Standard                     256K Write-Back
  External Cache Size Maximum                      256K Write-Back
 Instruction Set                                   32 bit
 Addressing                                        32 bit
 I/O Channel Width                                 32 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          40 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      8 (4m)
  DMA Burst Mode Supported                         Yes
  24/32-bit DMA Controller                         32
 Upgradeable Processor                             Yes
  Processor Complex/OverDrive Socket               OverDrive
 Bus Masters Supported                             15
 Page Memory Logic                                 Yes

 MEMORY
 Standard (Motherboard)                            8MB DRAM (2h)
 Maximum (System)                                  64MB DRAM or ECC (2r)(8q)
 Total # of Motherboard SIMM Sockets               4
 # of Motherboard SIMM Sockets Available           3
 Standard Memory Speed (ns)                        70
 Memory Type                                       DRAM
  Memory Interleaving                              No
 Wait States:                                      0-2
 Memory Used:                                      4/8/16MB DRAM SIMMs (70ns)
                                                   (8q)
                                                   8/16MB ECC SIMMs (70ns) (8q)


ΓòÉΓòÉΓòÉ 12.19.1.2. PS/2 Model 77i-ATB/ATG: Standard Features ΓòÉΓòÉΓòÉ

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 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77i-ATB/ATG header.

 DESCRIPTION                                       9577-ATB/ATG
 STANDARD FEATURES
 BIOS                                              SurePath
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 BIOS Extensions Stored on Disk                    Yes (5v)
 Setup & Diags Stored on Disk                      Yes (5v)
 Optional Math Coprocessor                         Yes
  Coprocessor Speed                                100
 Standard Graphics                                 Ehanced local Bus
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Motherboard
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
    Maximum Video Memory                           2MB
  Video Chipset                                    S3 928
  Resolutions Supported with Standard              640x480x16M Colors
   1MB DRAM                                        800x600x64K Colors
                                                   1024x768x256 Colors
                                                   1280x1024x16 Colors
  MediaBurst Full-Screen Video Playback            Optional
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 Compatible Graphics                               VGA/EGA/CGA/MCGA/SVGA
 RS232C Serial Ports                               2
  9/25-Pin                                         9-pin
  UART Chip Used                                   NS16550A type 4
  Maximum Speed (bits/second)                      345,600
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
  IBM Mouse Included                               Yes with all
                                                   Non-TrackPointII Keyboards
   Mouse Resolution                                Up to 400 DPI, programmable
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 SCSI port                                         Requires optional adapter


ΓòÉΓòÉΓòÉ 12.19.1.3. PS/2 Model 77i-ATB/ATG: Disk/Tape Storage ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

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 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77i-ATB/ATG header.

 DESCRIPTION                                       9577-ATB/ATG
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     4
  # of 3.5"/5.25" Bays                             1/3
  # of 3.5"/5.25" Bays Available                   0/2
 Selectable Boot                                   Yes
  Bootable Physical Drives                         All
 Diskette Drives Standard                          1x2.88MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (i)
   Media Sensing                                   No
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      Optional (g)
   Media Sensing                                   Yes
  3.5" 2.88MB                                      Optional (g)
   Media Sensing                                   Yes
  3.5" Enhanced 2.88MB                             Optional (i)
   Media Sensing                                   Yes
   Electronic Lock/Eject                           Yes
  Internal Drives Supported                        3
  External Drives Supported                        ?
  Maximum # Diskette Drives                        3
 Hard Disk Drives Standard                         270MB (ATB)
                                                   527MB (ATG)
  Drive Type                                       IDE
  Encoding Method                                  RLL
  Drive Form Factor                                3.5"
  Average Access Rate (ms)                         ??
  Sector Buffer Size                               ??
  Data Transfer Rate (/Second)                     ??
  Average Latency (ms)                             ??
  Rotational Speed (RPMs)                          ??
  # of Heads                                       ??
  # of Platters                                    ??
  Sectors per Track                                ??
  Cylinders                                        ??
  Shock Rating (Gs): Operating                     ??
            Non-operating                          ??
  MTBF (Hours)                                     ??
  Auto Park                                        Yes
  Interleave Factor                                1:1
  Maximum # of Internal HD Drives                  3
  Optional HD Sizes Available:                     ??
  Maximum Internal HD Capacity                     ?? (3z)(4o)(5k)(6h)
 Standard Hard Disk Controller Type                EIDE
  Bus Master                                       Yes
   16-bit Adapter                                  ??
   32-bit Adapter                                  ??
  # of Devices Supported/Adapter                   4
  # of Adapters Supported/System                   1
  Controller Data Transfer/second                  ??
   Controller to Micro Channel                     ??

 TAPE STORAGE
 Internal Tape Drive Support                       Yes
  3.5" Tape Drives                                 Yes
  5.25" Tape Drives                                Yes
 External Tape Drive Support                       Yes
  SCSI Tape Drives                                 Yes (with optional SCSI
                                                   adapter)
  Parallel Tape Drives                             Yes


ΓòÉΓòÉΓòÉ 12.19.1.4. PS/2 Model 77i-ATB/ATG: Expansion/Operating Systems ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77i-ATB/ATG header.

 DESCRIPTION                                       9577-ATB/ATG
 EXPANSION
 Total Adapter Slots                               5
  # of Long/Short Slots                            5/0
  # of 8/16/32-bit Slots                           0/0/5 (3a)
  # of Slots with Video Extension                  1
 Available Slots                                   5

 OPERATING Systems SUPPORT
 IBM PC-DOS                                        5.00.1 or later ??
 IBM OS/2                                          2.00.1 (ServicePak Level
                                                   6050) or later ??
 IBM AIX PS/2                                      1.3 or later ??
 SCO XENIX                                         2.3.4 or later ??
 SCO UNIX 3.2                                      V.4 or later ??


ΓòÉΓòÉΓòÉ 12.19.1.5. PS/2 Model 77i-ATB/ATG: Keyboard/Security ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77i-ATB/ATG header.

 DESCRIPTION                                       9577-ATB/ATG
 KEYBOARD
 122-Key Host Connected Keyboard (6w)              Yes (8p)
 106-Key Enhanced Keyboard (Japanese)              Yes (8p)
 102-Key Enhanced Keyboard (LA Spanish)            Yes (8p)
 101-Key Enhanced Keyboard                         Yes (8p)
 101-Key Quiet Touch Keyboard                      Yes (8p)
 101-Key Enhanced Keyboard With TrackPoint II      Yes (8p)
 84-Key Quiet Touch With TrackPoint II             Yes (8p)
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         7.5 (Default Keyboard)

 SECURITY
 Vital Product Data (VPD) Enabled                  Yes (5m)
 Cable/Bolt Down Capability                        Yes
 Lockable Cable Cover With Key Lock                Yes
 Tamper Evident Covers                             Yes
 Power on Password                                 Yes
 Privileged Access Password                        Yes
 Keyboard Password                                 Yes (operating Systems)
 Secure IPL source                                 Yes
 Secure Configuration                              Yes
 Secure Access Openings                            Yes
 Security Cable Cover for I/O cables               Optional
 Secured removable media via 2.88MB
   Electronic Eject Diskette Drive                 Optional


ΓòÉΓòÉΓòÉ 12.19.1.6. PS/2 Model 77i-ATB/ATG: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
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 Limitations

 Return to the 77i-ATB/ATG header.

 DESCRIPTION                                       9577-ATB/ATG
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
  Orientation                                      Horizontal/Vertical (6y)
  Vertical-Mount Floor Stand                       Standard
 Dimensions: Height                                6.6"
        Width                                      17.3"
        Depth                                      15.5"
 Weight (lbs):                                     26.0

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              197
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Automatic
 Amperage at:  90-137 VAC                          4.6
        180-265 VAC                                2.0
 Operating Range: Temperature                      50-95┬░ F
           Rel. Humidity                           8-85%
 Maximum Current Leakage (uA)                      <500 ??
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  158
 Noise (Avg dB, Operating, 1m)                     5.0
    Classification                                 B

 MISCELLANEOUS
 Software Choices                                  IBM PC DOS 5.02 and Windows
                                                   3.1,
                                                   IBM PC DOS 6.1 and Windows
                                                   3.1,
                                                   IBM PC DOS 6.3 and Windows
                                                   3.11,
                                                   IBM OS/2 2.1, or
                                                   IBM OS/2 2.11
 FCC Classification                                B
 UL Approval                                       UL 1950, 1st Edition
 CSA Approval                                      CSA22.2 No. 950
 Warranty Period                                   3 Years
  On-site/Carry-in                                 On-site
  Int'l Traveler's Warranty Service                No
  Countries Warranty Valid In                      N/A
 BIOS Model/Submodel/Revision                      ??/??/??
 BIOS Date                                         ??????
 Date Announced                                    14Jun94
 Date Withdrawn                                    13Nov95


ΓòÉΓòÉΓòÉ 12.19.1.7. PS/2 Model 77i-ATB/ATG: Limitations ΓòÉΓòÉΓòÉ

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and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 77i-ATB/ATG header.

     The Systems support only 4MB, 8MB and 16MB 70-nanosecond single in-line
      memory modules (SIMM).
 The following Micro Channel adapters, option and cables are NOT supported by
 the IBM Personal Systems/2 76/77i and 76/77s:

     IBM PS/2 8514 Display Adapter/A (4054)(1887972)
     IBM PS/2 Micro Channel SCSI Adapter (1005)(6451109)
     IBM PS/2 Micro Channel SCSI Adapter with Cache (1018)(6451110)
     IBM Mwave WindSurfer-MCA Communication Adapter/A (7058)(82G7058)


ΓòÉΓòÉΓòÉ 12.20. PS/2 Model 77s 486SX Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
486SX-based Model 77s systems.

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 33MHz Systems
 PS/2 Model 9577-BUB

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 12.20.1. PS/2 Model 77s-BUB Tech Specs ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
PS/2 Model 77s-BUB system.

Note:  This model has been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Jump directly to the PS/2 Model 77s 486SX Systems header.


ΓòÉΓòÉΓòÉ 12.20.1.1. PS/2 Model 77s-BUB: Architecture/Memory ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77s-BUB header.

 DESCRIPTION                                       9577-BUB
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    Intel 486SX
 Uses 3.3 Volt Technology                          No
 Clock Multiplying                                 No
 Clock Speed (MHz)
  Internal                                         33
  External                                         33
 Internal/External Cache                           (4u)
  Internal Cache Size                              8K
  External Cache Size Standard                     0K
  External Cache Size Maximum                      0K
 Instruction Set                                   32 bit
 Addressing                                        32 bit
 I/O Channel Width                                 32 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          40 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      8 (4m)
  DMA Burst Mode Supported                         Yes
  24/32-bit DMA Controller                         32
 Upgradeable Processor                             Yes
  Processor Complex/OverDrive Socket               OverDrive
 Bus Masters Supported                             15
 Page Memory Logic                                 Yes

 MEMORY
 Standard (Motherboard)                            8MB DRAM (2h)
 Maximum (System)                                  64MB DRAM or ECC (2r)(8q)
 Total # of Motherboard SIMM Sockets               4
 # of Motherboard SIMM Sockets Available           3
 Standard Memory Speed (ns)                        70
 Memory Type                                       DRAM
  Memory Interleaving                              No
 Wait States:                                      0-2
 Memory Used:                                      4/8/16MB DRAM SIMMs (70ns)
                                                   (8q)
                                                   8/16MB ECC SIMMs (70ns) (8q)


ΓòÉΓòÉΓòÉ 12.20.1.2. PS/2 Model 77s-BUB: Standard Features ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77s-BUB header.

 DESCRIPTION                                       9577-BUB
 STANDARD FEATURES
 BIOS                                              SurePath
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 BIOS Extensions Stored on Disk                    Yes (5v)
 Setup & Diags Stored on Disk                      Yes (5v)
 Optional Math Coprocessor                         No
  Coprocessor Speed                                N/A
 Standard Graphics                                 Ehanced local Bus
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Motherboard
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
    Maximum Video Memory                           2MB
  Video Chipset                                    S3 928
  Resolutions Supported with Standard              640x480x16M Colors
   1MB DRAM                                        800x600x64K Colors
                                                   1024x768x256 Colors
                                                   1280x1024x16 Colors
  MediaBurst Full-Screen Video Playback            Optional
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 RS232C Serial Ports                               2
  9/25-Pin                                         9-pin
  UART Chip Used                                   NS16550A type 4
  Maximum Speed (bits/second)                      345,600
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
  IBM Mouse Included                               Yes with all
                                                   Non-TrackPointII Keyboards
   Mouse Resolution                                Up to 400 DPI, programmable
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 SCSI port                                         Yes
  Fast or Fast/Wide                                Fast
  Internal/External Connectors                     Both
  On Motherboard/Adapter                           Adapter


ΓòÉΓòÉΓòÉ 12.20.1.3. PS/2 Model 77s-BUB: Disk/Tape Storage ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77s-BUB header.

 DESCRIPTION                                       9577-BUB
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     4
  # of 3.5"/5.25" Bays                             1/3
  # of 3.5"/5.25" Bays Available                   0/2
 Selectable Boot                                   Yes
  Bootable Physical Drives                         All
 Diskette Drives Standard                          1x2.88MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (i)
   Media Sensing                                   No
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      Optional (g)
   Media Sensing                                   Yes
  3.5" 2.88MB                                      Optional (g)
   Media Sensing                                   Yes
  3.5" Enhanced 2.88MB                             Optional (i)
   Media Sensing                                   Yes
   Electronic Lock/Eject                           Yes
  Internal Drives Supported                        3
  External Drives Supported                        ?
  Maximum # Diskette Drives                        3
 Hard Disk Drives Standard                         270MB
  Drive Type                                       SCSI
  Encoding Method                                  RLL
  Drive Form Factor                                3.5"
  Average Access Rate (ms)                         ??
  Sector Buffer Size                               ??
  Data Transfer Rate (/Second)                     ??
  Average Latency (ms)                             ??
  Rotational Speed (RPMs)                          ??
  # of Heads                                       ??
  # of Platters                                    ??
  Sectors per Track                                ??
  Cylinders                                        ??
  Shock Rating (Gs): Operating                     ??
            Non-operating                          ??
  MTBF (Hours)                                     ??
  Auto Park                                        Yes
  Interleave Factor                                1:1
  Maximum # of Internal HD Drives                  3
  Optional HD Sizes Available:                     ??
  Maximum Internal HD Capacity                     ?? (3z)(4o)(5k)(6h)
 Standard Hard Disk Controller Type                SCSI
  Bus Master                                       Yes
   16-bit/32-bit Adapter                           32
  # of Devices Supported/Adapter                   7
  # of Adapters Supported/System                   4
  Controller Data Transfer/second                  ??
   Controller to Micro Channel                     ??

 TAPE STORAGE
 Internal Tape Drive Support                       Yes
  3.5" Tape Drives                                 Yes
  5.25" Tape Drives                                Yes
 External Tape Drive Support                       Yes
  SCSI Tape Drives                                 Yes
  Parallel Tape Drives                             Yes


ΓòÉΓòÉΓòÉ 12.20.1.4. PS/2 Model 77s-BUB: Expansion/Operating Systems ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77s-BUB header.

 DESCRIPTION                                       9577-BUB
 EXPANSION
 Total Adapter Slots                               5
  # of Long/Short Slots                            5/0
  # of 8/16/32-bit Slots                           0/0/5 (3a)
  # of Slots with Video Extension                  1
 Available Slots                                   4

 OPERATING Systems SUPPORT
 IBM PC-DOS                                        5.00.1 or later ??
 IBM OS/2                                          2.00.1 (ServicePak Level
                                                   6050) or later ??
 IBM AIX PS/2                                      1.3 or later ??
 SCO XENIX                                         2.3.4 or later ??
 SCO UNIX 3.2                                      V.4 or later ??


ΓòÉΓòÉΓòÉ 12.20.1.5. PS/2 Model 77s-BUB: Keyboard/Security ΓòÉΓòÉΓòÉ

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 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77s-BUB header.

 DESCRIPTION                                       9577-BUB
 KEYBOARD
 122-Key Host Connected Keyboard (6w)              Yes (8p)
 106-Key Enhanced Keyboard (Japanese)              Yes (8p)
 102-Key Enhanced Keyboard (LA Spanish)            Yes (8p)
 101-Key Enhanced Keyboard                         Yes (8p)
 101-Key Quiet Touch Keyboard                      Yes (8p)
 101-Key Enhanced Keyboard With TrackPoint II      Yes (8p)
 84-Key Quiet Touch With TrackPoint II             Yes (8p)
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         7.5 (Default Keyboard)

 SECURITY
 Vital Product Data (VPD) Enabled                  Yes (5m)
 Cable/Bolt Down Capability                        Yes
 Lockable Cable Cover With Key Lock                Yes
 Tamper Evident Covers                             Yes
 Power on Password                                 Yes
 Privileged Access Password                        Yes
 Keyboard Password                                 Yes (operating Systems)
 Secure IPL source                                 Yes
 Secure Configuration                              Yes
 Secure Access Openings                            Yes
 Security Cable Cover for I/O cables               Optional
 Secured removable media via 2.88MB
   Electronic Eject Diskette Drive                 Optional


ΓòÉΓòÉΓòÉ 12.20.1.6. PS/2 Model 77s-BUB: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

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 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77s-BUB header.

 DESCRIPTION                                       9577-BUB
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
  Orientation                                      Horizontal/Vertical (6y)
  Vertical-Mount Floor Stand                       Standard
 Dimensions: Height                                6.6"
        Width                                      17.3"
        Depth                                      15.5"
 Weight (lbs):                                     26.0

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              197
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Automatic
 Amperage at:  90-137 VAC                          4.6
        180-265 VAC                                2.0
 Operating Range: Temperature                      50-95┬░ F
           Rel. Humidity                           8-85%
 Maximum Current Leakage (uA)                      <500 ??
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  158
 Noise (Avg dB, Operating, 1m)                     5.0
    Classification                                 B

 MISCELLANEOUS
 Software Choices                                  IBM PC DOS 5.02 and Windows
                                                   3.1,
                                                   IBM PC DOS 6.1 and Windows
                                                   3.1,
                                                   IBM PC DOS 6.3 and Windows
                                                   3.11,
                                                   IBM OS/2 2.1, or
                                                   IBM OS/2 2.11
 FCC Classification                                B
 UL Approval                                       UL 1950, 1st Edition
 CSA Approval                                      CSA22.2 No. 950
 Warranty Period                                   3 Years
  On-site/Carry-in                                 On-site
  Int'l Traveler's Warranty Service                No
  Countries Warranty Valid In                      N/A
 BIOS Model/Submodel/Revision                      ??/??/??
 BIOS Date                                         ??????
 Date Announced                                    14Jun94
 Date Withdrawn                                    27Mar96


ΓòÉΓòÉΓòÉ 12.20.1.7. PS/2 Model 77s-BUB: Limitations ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 77s-BUB header.

     The Systems support only 4MB, 8MB and 16MB 70-nanosecond single in-line
      memory modules (SIMM).
 The following Micro Channel adapters, option and cables are NOT supported by
 the IBM Personal Systems/2 76/77s and 76/77s:

     IBM PS/2 8514 Display Adapter/A (4054)(1887972)
     IBM PS/2 Micro Channel SCSI Adapter (1005)(6451109)
     IBM PS/2 Micro Channel SCSI Adapter with Cache (1018)(6451110)
     IBM Mwave WindSurfer-MCA Communication Adapter/A (7058)(82G7058)


ΓòÉΓòÉΓòÉ 12.21. PS/2 Model 77s 486DX2 Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
486DX2-based Model 77s systems.

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 66MHz Systems
 PS/2 Model 9577-6NB/6NG/7NB/7NG/BNB/BNG

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 12.21.1. PS/2 Model 77s-6NB/6NG/7NB/7NG/BNB/BNG Tech Specs ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
PS/2 Models 77s-6NB/6NG/7NB/7NG/BNB/BNG systems.  They are identical except for
the hard disk drive used, and multimedia features installed.  Therefore all
models will be covered by this one document.  Differences will be indicated by
model number in parentheses.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Jump directly to the PS/2 Model 77s 486DX2 Systems header.


ΓòÉΓòÉΓòÉ 12.21.1.1. PS/2 Model 77s-6NB/6NG/7NB/7NG/BNB/BNG: Architecture/Memory ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

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 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77s-6NB/6NG/7NB/7NG/BNB/BNG header.

 DESCRIPTION                                       9577-6NB/6NG/7NB/7NG/BNB/BNG
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    Intel 486DX2
 Uses 3.3 Volt Technology                          No
 Clock Multiplying                                 Yes (2X)
 Clock Speed (MHz)
  Internal                                         66
  External                                         33
 Internal/External Cache                           (4u)
  Internal Cache Size                              8K
  External Cache Size Standard                     128K Write-Back
  External Cache Size Maximum                      256K Write-Back
 Instruction Set                                   32 bit
 Addressing                                        32 bit
 I/O Channel Width                                 32 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          40 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      8 (4m)
  DMA Burst Mode Supported                         Yes
  24/32-bit DMA Controller                         32
 Upgradeable Processor                             Yes
  Processor Complex/OverDrive Socket               OverDrive
 Bus Masters Supported                             15
 Page Memory Logic                                 Yes

 MEMORY
 Standard (Motherboard)                            8MB DRAM (2h)
 Maximum (System)                                  64MB DRAM or ECC (2r)(8q)
 Total # of Motherboard SIMM Sockets               4
 # of Motherboard SIMM Sockets Available           3
 Standard Memory Speed (ns)                        70
 Memory Type                                       DRAM
  Memory Interleaving                              No
 Wait States:                                      0-2
 Memory Used:                                      4/8/16MB DRAM SIMMs (70ns)
                                                   (8q)
                                                   8/16MB ECC SIMMs (70ns) (8q)


ΓòÉΓòÉΓòÉ 12.21.1.2. PS/2 Model 77s-6NB/6NG/7NB/7NG/BNB/BNG: Standard Features ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77s-6NB/6NG/7NB/7NG/BNB/BNG header.

 DESCRIPTION                                       9577-6NB/6NG/7NB/7NG/BNB/BNG
 STANDARD FEATURES
 BIOS                                              SurePath
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 BIOS Extensions Stored on Disk                    Yes (5v)
 Setup & Diags Stored on Disk                      Yes (5v)
 Optional Math Coprocessor                         Yes
  Coprocessor Speed                                66
 Standard Graphics                                 Ehanced local Bus
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Motherboard
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
    Maximum Video Memory                           2MB
  Video Chipset                                    S3 928
  Resolutions Supported with Standard              640x480x16M Colors
   1MB DRAM                                        800x600x64K Colors
                                                   1024x768x256 Colors
                                                   1280x1024x16 Colors
  MediaBurst Full-Screen Video Playback            Optional
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 RS232C Serial Ports                               2
  9/25-Pin                                         9-pin
  UART Chip Used                                   NS16550A type 4
  Maximum Speed (bits/second)                      345,600
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 MULTIMEDIA FEATURES                               (6NB/7NB/6NG/7NG)
  Audiovation Adapter                              Yes
  MediaBurst Movie Adapter                         Yes
  Microphone Included                              Yes
  Headphone/Microphone jacks                       Yes
  5.25" CD-ROM drive                               Yes
 Pointing Device Ports                             1
  IBM Mouse Included                               Yes, with all Non-TrackPoint
                                                   II Keyboards
   Mouse Resolution                                Up to 400 DPI, programmable
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 SCSI port                                         Yes
  Fast or Fast/Wide                                Fast
  Internal/External Connectors                     Both
  On Motherboard/Adapter                           Adapter


ΓòÉΓòÉΓòÉ 12.21.1.3. PS/2 Model 77s-6NB/6NG/7NB/7NG/BNB/BNG: Disk/Tape Storage ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77s-6NB/6NG/7NB/7NG/BNB/BNG header.

 DESCRIPTION                                       9577-6NB/6NG/7NB/7NG/BNB/BNG
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     4
  # of 3.5"/5.25" Bays                             1/3
  # of 3.5"/5.25" Bays Available                   0/2
 Selectable Boot                                   Yes
  Bootable Physical Drives                         All
 Diskette Drives Standard                          1x2.88MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (i)
   Media Sensing                                   No
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      Optional (g)
   Media Sensing                                   Yes
  3.5" 2.88MB                                      Optional (g)
   Media Sensing                                   Yes
  3.5" Enhanced 2.88MB                             Optional (i)
   Media Sensing                                   Yes
   Electronic Lock/Eject                           Yes
  Internal Drives Supported                        3
  External Drives Supported                        ?
  Maximum # Diskette Drives                        3
 Hard Disk Drives Standard                         270MB (BNB/6NB/7NB)
                                                   527MB (BNG/6NG/7NG)
  Drive Type                                       SCSI
  Encoding Method                                  RLL
  Drive Form Factor                                3.5"
  Average Access Rate (ms)                         ??
  Sector Buffer Size                               ??
  Data Transfer Rate (/Second)                     ??
  Average Latency (ms)                             ??
  Rotational Speed (RPMs)                          ??
  # of Heads                                       ??
  # of Platters                                    ??
  Sectors per Track                                ??
  Cylinders                                        ??
  Shock Rating (Gs): Operating                     ??
            Non-operating                          ??
  MTBF (Hours)                                     ??
  Auto Park                                        Yes
  Interleave Factor                                1:1
  Maximum # of Internal HD Drives                  3
  Optional HD Sizes Available:                     ??
  Maximum Internal HD Capacity                     ?? (3z)(4o)(5k)(6h)
 Standard Hard Disk Controller Type                SCSI
  Bus Master                                       Yes
   16-bit/32-bit Adapter                           32
  # of Devices Supported/Adapter                   7
  # of Adapters Supported/System                   4
  Controller Data Transfer/second                  ??
   Controller to Micro Channel                     ??

 TAPE STORAGE
 Internal Tape Drive Support                       Yes
  3.5" Tape Drives                                 Yes
  5.25" Tape Drives                                Yes
 External Tape Drive Support                       Yes
  SCSI Tape Drives                                 Yes
  Parallel Tape Drives                             Yes


ΓòÉΓòÉΓòÉ 12.21.1.4. PS/2 Model 77s-6NB/6NG/7NB/7NG/BNB/BNG: Expansion/Operating Systems ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77s-6NB/6NG/7NB/7NG/BNB/BNG header.

 DESCRIPTION                                       9577-6NB/6NG/7NB/7NG/BNB/BNG
 EXPANSION
 Total Adapter Slots                               5
  # of Long/Short Slots                            5/0
  # of 8/16/32-bit Slots                           0/0/5 (3a)
  # of Slots with Video Extension                  1
 Available Slots                                   4

 OPERATING Systems SUPPORT
 IBM PC-DOS                                        5.00.1 or later ??
 IBM OS/2                                          2.00.1 (ServicePak Level
                                                   6050) or later ??
 IBM AIX PS/2                                      1.3 or later ??
 SCO XENIX                                         2.3.4 or later ??
 SCO UNIX 3.2                                      V.4 or later ??


ΓòÉΓòÉΓòÉ 12.21.1.5. PS/2 Model 77s-6NB/6NG/7NB/7NG/BNB/BNG: Keyboard/Security ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77s-6NB/6NG/7NB/7NG/BNB/BNG header.

 DESCRIPTION                                       9577-6NB/6NG/7NB/7NG/BNB/BNG
 KEYBOARD
 122-Key Host Connected Keyboard (6w)              Yes (8p)
 106-Key Enhanced Keyboard (Japanese)              Yes (8p)
 102-Key Enhanced Keyboard (LA Spanish)            Yes (8p)
 101-Key Enhanced Keyboard                         Yes (8p)
 101-Key Quiet Touch Keyboard                      Yes (8p)
 101-Key Enhanced Keyboard With TrackPoint II      Yes (8p)
 84-Key Quiet Touch With TrackPoint II             Yes (8p)
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         7.5 (Default Keyboard)

 SECURITY
 Vital Product Data (VPD) Enabled                  Yes (5m)
 Cable/Bolt Down Capability                        Yes
 Lockable Cable Cover With Key Lock                Yes
 Tamper Evident Covers                             Yes
 Power on Password                                 Yes
 Privileged Access Password                        Yes
 Keyboard Password                                 Yes (operating Systems)
 Secure IPL source                                 Yes
 Secure Configuration                              Yes
 Secure Access Openings                            Yes
 Security Cable Cover for I/O cables               Optional
 Secured removable media via 2.88MB
   Electronic Eject Diskette Drive                 Optional


ΓòÉΓòÉΓòÉ 12.21.1.6. PS/2 Model 77s-6NB/6NG/7NB/7NG/BNB/BNG: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77s-6NB/6NG/7NB/7NG/BNB/BNG header.

 DESCRIPTION                                       9577-6NB/6NG/7NB/7NG/BNB/BNG
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
  Orientation                                      Horizontal/Vertical (6y)
  Vertical-Mount Floor Stand                       Standard
 Dimensions: Height                                6.6"
        Width                                      17.3"
        Depth                                      15.5"
 Weight (lbs):                                     26.0

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              197
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Automatic
 Amperage at:  90-137 VAC                          4.6
        180-265 VAC                                2.0
 Operating Range: Temperature                      50-95┬░ F
           Rel. Humidity                           8-85%
 Maximum Current Leakage (uA)                      <500 ??
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  158
 Noise (Avg dB, Operating, 1m)                     5.0
    Classification                                 B

 MISCELLANEOUS
 Software Choices                                  IBM PC DOS 5.02 and Windows
                                                   3.1,
                                                   IBM PC DOS 6.1 and Windows
                                                   3.1,
                                                   IBM PC DOS 6.3 and Windows
                                                   3.11,
                                                   IBM OS/2 2.1, or
                                                   IBM OS/2 2.11
 FCC Classification                                B
 UL Approval                                       UL 1950, 1st Edition
 CSA Approval                                      CSA22.2 No. 950
 Warranty Period                                   3 Years
  On-site/Carry-in                                 On-site
  Int'l Traveler's Warranty Service                No
  Countries Warranty Valid In                      N/A
 BIOS Model/Submodel/Revision                      ??/??/??
 BIOS Date                                         ??????
 Date Announced                                    14Jun94
 Date Withdrawn                                    27Mar96


ΓòÉΓòÉΓòÉ 12.21.1.7. PS/2 Model 77s-6NB/6NG/7NB/7NG/BNB/BNG: Limitations ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 77s-6NB/6NG/7NB/7NG/BNB/BNG header.

     The Systems support only 4MB, 8MB and 16MB 70-nanosecond single in-line
      memory modules (SIMM).
 The following Micro Channel adapters, option and cables are NOT supported by
 the IBM Personal Systems/2 76/77s and 76/77s:

     IBM PS/2 8514 Display Adapter/A (4054)(1887972)
     IBM PS/2 Micro Channel SCSI Adapter (1005)(6451109)
     IBM PS/2 Micro Channel SCSI Adapter with Cache (1018)(6451110)
     IBM Mwave WindSurfer-MCA Communication Adapter/A (7058)(82G7058)


ΓòÉΓòÉΓòÉ 12.22. PS/2 Model 77s 486DX4 Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
DX4-based Model 77s systems.

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 100MHz Systems
 PS/2 Model 9577-6TG/7TG/BTB/BTG/VTG

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 12.22.1. PS/2 Model 77s-6TG/7TG/BTB/BTG/VTG Tech Specs ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
PS/2 Models 77s-6TG/7TG/BTB/BTG/VTG systems.  They are identical except for the
hard disk drive used, and multimedia features installed.  Therefore all models
will be covered by this one document.  Differences will be indicated by model
number in parentheses.

Note:  These models have been withdrawn from marketing.

Choose the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Jump directly to the PS/2 Model 77s DX4 Systems header.


ΓòÉΓòÉΓòÉ 12.22.1.1. PS/2 Model 77s-6TG/7TG/BTB/BTG/VTG: Architecture/Memory ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77s-6TG/7TG/BTB/BTG/VTG header.

 DESCRIPTION                                       9577-6TG/7TG/BTB/BTG/VTG
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    Intel 486DX4
 Uses 3.3 Volt Technology                          No
 Clock Multiplying                                 Yes (3X)
 Clock Speed (MHz)
  Internal                                         100
  External                                         33
 Internal/External Cache                           (4u)
  Internal Cache Size                              16K
  External Cache Size Standard                     256K Write-Back
  External Cache Size Maximum                      256K Write-Back
 Instruction Set                                   32 bit
 Addressing                                        32 bit
 I/O Channel Width                                 32 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          40 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      8 (4m)
  DMA Burst Mode Supported                         Yes
  24/32-bit DMA Controller                         32
 Upgradeable Processor                             Yes
  Processor Complex/OverDrive Socket               OverDrive
 Bus Masters Supported                             15
 Page Memory Logic                                 Yes

 MEMORY
 Standard (Motherboard)                            8MB DRAM (6TG/7TG/BTB/BTG)
                                                   (2h)
                                                   16MB ECC (VTG)
 Maximum (System)                                  64MB DRAM or ECC (2r)(8q)
 Total # of Motherboard SIMM Sockets               4
 # of Motherboard SIMM Sockets Available           3
 Standard Memory Speed (ns)                        70
 Memory Type                                       DRAM
  Memory Interleaving                              No
 Wait States:                                      0-2
 Memory Used:                                      4/8/16MB DRAM SIMMs (70ns)
                                                   (8q)
                                                   8/16MB ECC SIMMs (70ns) (8q)


ΓòÉΓòÉΓòÉ 12.22.1.2. PS/2 Model 77s-6TG/7TG/BTB/BTG/VTG: Standard Features ΓòÉΓòÉΓòÉ

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and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77s-6TG/7TG/BTB/BTG/VTG header.

 DESCRIPTION                                       9577-6TG/7TG/BTB/BTG/VTG
 STANDARD FEATURES
 BIOS                                              SurePath
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 BIOS Extensions Stored on Disk                    Yes (5v)
 Setup & Diags Stored on Disk                      Yes (5v)
 Optional Math Coprocessor                         Yes
  Coprocessor Speed                                100
 Standard Graphics                                 Ehanced local Bus
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Motherboard
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
    Maximum Video Memory                           2MB
  Video Chipset                                    S3 928
  Resolutions Supported with Standard              640x480x16M Colors
   1MB DRAM                                        800x600x64K Colors
                                                   1024x768x256 Colors
                                                   1280x1024x16 Colors
  MediaBurst Full-Screen Video Playback            Optional
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 RS232C Serial Ports                               2
  9/25-Pin                                         9-pin
  UART Chip Used                                   NS16550A type 4
  Maximum Speed (bits/second)                      345,600
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 MULTIMEDIA FEATURES                               (6TG/7TG)
  Audiovation adapter                              Yes
  MediaBurst Movie adapter                         Yes
  Microphone Included                              Yes
  Headphone/Microphone jacks                       Yes
  5.25" CD-ROM drive                               Yes
 Pointing Device Ports                             1
  IBM Mouse Included                               Yes with all
                                                   Non-TrackPointII Keyboards
   Mouse Resolution                                Up to 400 DPI, programmable
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 SCSI port                                         Yes
  Fast or Fast/Wide                                Fast (6TB/6TG)
  Fast or Fast/Wide                                Fast/Wide (VTG)
  Internal/External Connectors                     Both
  On Motherboard/Adapter                           Adapter


ΓòÉΓòÉΓòÉ 12.22.1.3. PS/2 Model 77s-6TG/7TG/BTB/BTG/VTG: Disk/Tape Storage ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77s-6TG/7TG/BTB/BTG/VTG header.

 DESCRIPTION                                       9577-6TG/7TG/BTB/BTG/VTG
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     4
  # of 3.5"/5.25" Bays                             1/3
  # of 3.5"/5.25" Bays Available                   0/2
 Selectable Boot                                   Yes
  Bootable Physical Drives                         All
 Diskette Drives Standard                          1x2.88MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (i)
   Media Sensing                                   No
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      Optional (g)
   Media Sensing                                   Yes
  3.5" 2.88MB                                      Optional (g)
   Media Sensing                                   Yes
  3.5" Enhanced 2.88MB                             Optional (i)
   Media Sensing                                   Yes
   Electronic Lock/Eject                           Yes
  Internal Drives Supported                        3
  External Drives Supported                        ?
  Maximum # Diskette Drives                        3
 Hard Disk Drives Standard                         270MB (BNB/6NB/7NB)
                                                   527MB (BNG/6NG/7NG)
  Drive Type                                       SCSI
  Encoding Method                                  RLL
  Drive Form Factor                                3.5"
  Average Access Rate (ms)                         ??
  Sector Buffer Size                               ??
  Data Transfer Rate (/Second)                     ??
  Average Latency (ms)                             ??
  Rotational Speed (RPMs)                          ??
  # of Heads                                       ??
  # of Platters                                    ??
  Sectors per Track                                ??
  Cylinders                                        ??
  Shock Rating (Gs): Operating                     ??
            Non-operating                          ??
  MTBF (Hours)                                     ??
  Auto Park                                        Yes
  Interleave Factor                                1:1
  Maximum # of Internal HD Drives                  3
  Optional HD Sizes Available:                     ??
  Maximum Internal HD Capacity                     ?? (3z)(4o)(5k)(6h)
 Standard Hard Disk Controller Type                SCSI
  Bus Master                                       Yes
   16-bit/32-bit Adapter                           32
  # of Devices Supported/Adapter                   7
  # of Adapters Supported/System                   4
  Controller Data Transfer/second                  ??
   Controller to Micro Channel                     ??

 TAPE STORAGE
 Internal Tape Drive Support                       Yes
  3.5" Tape Drives                                 Yes
  5.25" Tape Drives                                Yes
 External Tape Drive Support                       Yes
  SCSI Tape Drives                                 Yes (with optional SCSI
                                                   adapter)
  Parallel Tape Drives                             Yes


ΓòÉΓòÉΓòÉ 12.22.1.4. PS/2 Model 77s-6TG/7TG/BTB/BTG/VTG: Expansion/Operating Systems ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77s-6TG/7TG/BTB/BTG/VTG header.

 DESCRIPTION                                       9577-6TG/7TG/BTB/BTG/VTG
 EXPANSION
 Total Adapter Slots                               5
  # of Long/Short Slots                            5/0
  # of 8/16/32-bit Slots                           0/0/5 (3a)
  # of Slots with Video Extension                  1
 Available Slots                                   4

 OPERATING Systems SUPPORT
 IBM PC-DOS                                        5.00.1 or later ??
 IBM OS/2                                          2.00.1 (ServicePak Level
                                                   6050) or later ??
 IBM AIX PS/2                                      1.3 or later ??
 SCO XENIX                                         2.3.4 or later ??
 SCO UNIX 3.2                                      V.4 or later ??


ΓòÉΓòÉΓòÉ 12.22.1.5. PS/2 Model 77s-6TG/7TG/BTB/BTG/VTG: Keyboard/Security ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77s-6TG/7TG/BTB/BTG/VTG header.

 DESCRIPTION                                       9577-6TG/7TG/BTB/BTG/VTG
 KEYBOARD
 122-Key Host Connected Keyboard (6w)              Yes (8p)
 106-Key Enhanced Keyboard (Japanese)              Yes (8p)
 102-Key Enhanced Keyboard (LA Spanish)            Yes (8p)
 101-Key Enhanced Keyboard                         Yes (8p)
 101-Key Quiet Touch Keyboard                      Yes (8p)
 101-Key Enhanced Keyboard With TrackPoint II      Yes (8p)
 84-Key Quiet Touch With TrackPoint II             Yes (8p)
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         7.5 (Default Keyboard)

 SECURITY
 Vital Product Data (VPD) Enabled                  Yes (5m)
 Cable/Bolt Down Capability                        Yes
 Lockable Cable Cover With Key Lock                Yes
 Tamper Evident Covers                             Yes
 Power on Password                                 Yes
 Privileged Access Password                        Yes
 Keyboard Password                                 Yes (operating Systems)
 Secure IPL source                                 Yes
 Secure Configuration                              Yes
 Secure Access Openings                            Yes
 Security Cable Cover for I/O cables               Optional
 Secured removable media via 2.88MB
   Electronic Eject Diskette Drive                 Optional


ΓòÉΓòÉΓòÉ 12.22.1.6. PS/2 Model 77s-6TG/7TG/BTB/BTG/VTG: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 77s-6TG/7TG/BTB/BTG/VTG header.

 DESCRIPTION                                       9577-6TG/7TG/BTB/BTG/VTG
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
  Orientation                                      Horizontal/Vertical (6y)
  Vertical-Mount Floor Stand                       Standard
 Dimensions: Height                                6.6"
        Width                                      17.3"
        Depth                                      15.5"
 Weight (lbs):                                     26.0

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              197
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Automatic
 Amperage at:  90-137 VAC                          4.6
        180-265 VAC                                2.0
 Operating Range: Temperature                      50-95┬░ F
           Rel. Humidity                           8-85%
 Maximum Current Leakage (uA)                      <500 ??
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  158
 Noise (Avg dB, Operating, 1m)                     5.0
    Classification                                 B

 MISCELLANEOUS
 Software Choices                                  IBM PC DOS 5.02 and Windows
                                                   3.1,
                                                   IBM PC DOS 6.1 and Windows
                                                   3.1,
                                                   IBM PC DOS 6.3 and Windows
                                                   3.11,
                                                   IBM OS/2 2.1, or
                                                   IBM OS/2 2.11
 FCC Classification                                B
 UL Approval                                       UL 1950, 1st Edition
 CSA Approval                                      CSA22.2 No. 950
 Warranty Period                                   3 Years
  On-site/Carry-in                                 On-site
  Int'l Traveler's Warranty Service                No
  Countries Warranty Valid In                      N/A
 BIOS Model/Submodel/Revision                      ??/??/??
 BIOS Date                                         ??????
 Date Announced                                    14Jun94
 Date Withdrawn                                    27Mar96


ΓòÉΓòÉΓòÉ 12.22.1.7. PS/2 Model 77s-6TG/7TG/BTB/BTG/VTG: Limitations ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 77s-6TG/7TG/BTB/BTG/VTG header.

     The Systems support only 4MB, 8MB and 16MB 70-nanosecond single in-line
      memory modules (SIMM).
 The following Micro Channel adapters, option and cables are NOT supported by
 the IBM Personal Systems/2 76/77s and 76/77s:

     IBM PS/2 8514 Display Adapter/A (4054)(1887972)
     IBM PS/2 Micro Channel SCSI Adapter (1005)(6451109)
     IBM PS/2 Micro Channel SCSI Adapter with Cache (1018)(6451110)
     IBM Mwave WindSurfer-MCA Communication Adapter/A (7058)(82G7058)


ΓòÉΓòÉΓòÉ 12.23. PS/2 Model M77 486SX Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
486SX-based Ultimedia Model M77 systems. These models are distinguished from
the regular Model 77s by the addition of multimedia features.

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 33MHz Systems
 PS/2 Model 77-1UA

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 12.23.1. PS/2 Model M77-1UA Tech Specs ΓòÉΓòÉΓòÉ

Note:  These models have been withdrawn from marketing. Choose the section to
which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Jump directly to the PS/2 Model M77 486SX Systems header.


ΓòÉΓòÉΓòÉ 12.23.1.1. PS/2 Model M77-1UA: Architecture/Memory ΓòÉΓòÉΓòÉ

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 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model M77-1UA header.

 DESCRIPTION                                       9577-1UA
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    Intel 486SX
 Uses 3.3 Volt Technology                          No
 Clock Multiplying                                 No
 Clock Speed (MHz)
  Internal                                         33
  External                                         33
 Internal/External Cache                           (4u)
  Internal Cache Size                              8K
  External Cache Size Standard                     0K
  External Cache Size Maximum                      0K
 Instruction Set                                   32 bit
 Addressing                                        32 bit
 I/O Channel Width                                 32 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          40 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
  DMA Burst Mode Supported                         ???
  24/32-bit DMA Controller                         24
 Upgradeable Processor                             Yes
  Processor Complex/OverDrive Socket               OverDrive
  Processor Upgrades Available                     66/33MHz 486DX2
 Bus Masters Supported                             15
 Interleaved Memory                                Yes
 Matched Memory Cycle                              No (5i)
 Page Memory Logic                                 Yes

 MEMORY
 Standard (Motherboard)                            8MB (2h)
 Maximum (Motherboard)                             32MB
 Maximum (System)                                  32MB (2r)
 Total # of Motherboard SIMM Sockets               4
 # of Motherboard SIMM Sockets Available           3
 Standard Memory Speed (ns)                        70
 Memory Type                                       DRAM
  Memory Interleaving                              Yes
 Wait States: Motherboard                          0
        Adapter                                    N/A (8q)
 Memory Used: Motherboard                          1/2/4/8/16MB SIMMs (70ns)


ΓòÉΓòÉΓòÉ 12.23.1.2. PS/2 Model M77-1UA: Standard Features ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model M77-1UA header.

 DESCRIPTION                                       9577-1UA
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 BIOS Extensions Stored on Disk                    Yes (5v)
 Setup & Diags Stored on Disk                      Yes (5v)
 Optional Math Coprocessor                         486SX
  Coprocessor Speed                                33 MHz
 Standard Graphics                                 XGA-2
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Motherboard
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
  Resolutions Supported                            640x480 64K Colors
                                                   800x600 64K Colors
                                                   1024x768 256 Colors
                                                   1280x1024 16 Colors
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 Maximum Graphics                                  XGA-2
 Enhanced Audio Features                           Standard
  Audio Card Used (standard)                       M-Audio Capture and Playback
                                                   Adapter/A (2a)
  Audio Compression Supported                      Yes
  Audio Sampling Supported                         16K
  FM Quality Stereo Sound                          Yes
  Connected to Multimedia Panel                    Yes
 Multimedia Panel Features
  Volume Control                                   Yes
  Stereo Headphone Jack                            Yes
  Mono Microphone Jack                             Yes
  Enhanced Loudspeaker                             Yes
 RS232C Serial Ports                               2
  9/25-Pin                                         9-pin
  UART Chip Used                                   NS16550 Type 4
  Maximum Speed (bits/second)                      345,600
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
  IBM Mouse Included                               Yes
   Mouse Resolution                                Up to 200 DPI, programmable
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 Diskette Drive Support                            Yes
 External SCSI port                                Yes (5c)
  On Motherboard/Adapter                           Motherboard


ΓòÉΓòÉΓòÉ 12.23.1.3. PS/2 Model M77-1UA: Disk/Tape Storage ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model M77-1UA header.

 DESCRIPTION                                       9577-1UA
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     4
  # of 3.5"/5.25" Bays                             1/3 (6r)(6z)
  # of 3.5"/5.25" Bays Available                   0/1 (8l)
 Selectable Boot                                   Yes
  Bootable Physical Drives                         All
 Diskette Drives Standard                          1x2.88MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)(7t)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (j)(7t)
   Media Sensing                                   No
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      Optional (i)
   Media Sensing                                   No
  3.5" 2.88MB                                      Yes (i)
   Media Sensing                                   Yes
  3.5" Enhanced 2.88MB                             Optional (i)(7v)
   Media Sensing                                   Yes
   Electronic Lock/Eject                           Yes
  Internal Drives Supported                        3
  External Drives Supported                        1 (7t)
  Maximum # Diskette Drives                        4
 Hard Disk Drives Standard                         1x212MB
  Drive Type                                       SCSI
  Encoding Method                                  RLL
  Drive Form Factor                                3.5"
  Average Access Rate (ms)                         12
  Sector Buffer Size                               32K
  Data Transfer Rate (/Second)                     20.1 MBits
  Average Latency (ms)                             6.94
  Rotational Speed (RPMs)                          4320
  # of Heads                                       4
  # of Platters                                    2
  Sectors per Track                                44
  Cylinders                                        2009
  Shock Rating (Gs): Operating                     ??
            Non-operating                          ??
  MTBF (Hours)                                     ???,???
  Interleave Factor                                1:1
  Auto Park                                        Yes
  Maximum # of Internal HD Drives                  2
  Optional HD Sizes Avail:                         170MB (12ms)
                                                   340MB (13ms)
                                                   540MB (8.7ms)
                                                   1GB (8.6ms)
                                                   2GB (9.5ms)
  Maximum Internal HD Capacity                     4GB (3z)(4o)(5k)
 Standard Hard Disk Controller Type                SCSI-2 (SCSI Common Command
                                                   Set V4.B)
  Bus Master                                       Yes
   Adapter/Motherboard                             Motherboard
   Local Bus Implementation                        Yes
   Synchronous/Async Data Transfers                Yes
   16-bit Controller                               Optional
   32-bit Controller with Cache                    Standard
  # of Devices Supported/Adapter                   7/15 (3r)
  # of Adapters Supported/System                   4
  Controller Data Transfer/sec
   Controller to Micro Channel                     16.6 MBytes
   Controller to SCSI devices                      5.0 MBytes
 Internal Rewritable Optical Disk Drive            Optional
  Maximum Internal Drives Supported                1 (5k)
 Internal Optical CD-ROM Drive                     Standard
  (Double-click here for specs)
  Maximum Internal Drives Supported                1 (5k)
  Software CDs Included                            Yes
  Diagnostic CD Included                           Yes

 EXTERNAL EXPANSION UNIT SUPPORT
 IBM 3510 (1-Bay)                                  Yes
 IBM 3511 (7-Bay)                                  Yes
 IBM 3514 (8-Bays, RAID-5, SCSI-2)                 Yes
 IBM 3515 (4-Bays, Streaming Data,
  RAID-0/RAID-1)                                   No

 TAPE STORAGE
 Internal Tape Drive Support
  3.5" Internal Tape Backup Unit                   Yes (9b)
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        No
 External Tape Drive Support
  5.25" QIC SCSI Tape Drive                        Yes
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        Yes


ΓòÉΓòÉΓòÉ 12.23.1.4. PS/2 Model M77-1UA: Expansion/Operating System ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model M77-1UA header.

 DESCRIPTION                                       9577-1UA
 EXPANSION
 Total Adapter Slots                               5
  # of Long/Short Slots                            5/0
  # of 8/16/32-bit Slots                           0/0/5 (3a)
  # of Slots with Video Extension                  1
 Available Slots                                   4

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        5.00.1 or later
 IBM OS/2                                          2.00.1 (ServicePak Level
                                                   6050) or later
 IBM AIX PS/2                                      1.3.0 or later


ΓòÉΓòÉΓòÉ 12.23.1.5. PS/2 Model M77-1UA: Keyboard/Security ΓòÉΓòÉΓòÉ

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 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model M77-1UA header.

 DESCRIPTION                                       9577-1UA
 KEYBOARD
 122-Key Host-Connected Keyboard (6w)              Yes (8p)
 101-Key Enhanced Keyboard                         Yes (8p)
 84-Key Keyboard                                   Yes (8p)
 Japanese Keyboard                                 No
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         10 (3 meters)

 SECURITY
 Vital Product Data (VPD) Enabled                  Yes (5m)
 C2 Security Enabled                               Yes (7j)
 LogicLock Security                                Yes (7j)
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Cable-Down Capability                             No
 Lockable Cable Cover                              No


ΓòÉΓòÉΓòÉ 12.23.1.6. PS/2 Model M77-1UA: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

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 Sections
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 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model M77-1UA header.

 DESCRIPTION                                       9577-1UA
 PHYSICAL FACTORS
 Footprint Type                                    Desktop or floor standing
  Orientation                                      Horizontal/Vertical (6y)
  Vertical-Mount Floor Stand                       Standard
 Dimensions: Height                                6.6"
        Width                                      17.3"
        Depth                                      15.5"
 Weight (lbs):                                     26.0

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              197
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Manual
 Amperage at:  90-137 VAC                          4.6
        180-265 VAC                                2.0
 Operating Range: Temperature                      50-95┬░ F
           Rel. Humidity                           8-85%
 Maximum Current Leakage (uA)                      <500
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  158
 Noise (Avg dB, Operating, 1m)                     50
    Classification                                 3D

 MISCELLANEOUS
 Software Included                                 Pre-installed (7u)
 FCC Classification                                B
 UL Approval                                       UL 1950, 1st Edition
 CSA Approval                                      CSA22.2 No. 220-M1986
 Warranty Period                                   3 Years
  On-site/Carry-in                                 On-site
  Int'l Traveler's Warranty Service                No
  Countries Warranty Valid In                      U.S./Canada
 BIOS Model/Submodel/Revision                      F8/41/03
 BIOS Date                                         ???
 Date Announced                                    21Sep92
 Date Withdrawn                                    04/14/95


ΓòÉΓòÉΓòÉ 12.23.1.7. PS/2 Model M77-1UA: Limitations ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model M77-1UA header.

 The following limitations apply to this system.

     Only 2MB, 4MB, and 8MB 70-nanosecond single in-line memory modules
      (SIMMs) are supported.
     Display adapter cards that use the Auxiliary Video Extension, when
      installed in a system, require installation in slot 2 and attachment of a
      display to the system video connector during configuration of the system.
     The total length of all SCSI cables for external devices that operate
      from the external SCSI connector may not exceed a maximum of five meters
      (approx. 16.5 feet) including the cables inside each SCSI device.


ΓòÉΓòÉΓòÉ 12.24. PS/2 Model M77 486DX2 Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
486DX2-based Ultimedia Model M77 systems. These models are distinguished from
the regular Model 77s by the addition of multimedia options.

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 66/33MHz Systems
 PS/2 Model 77-1NA

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 12.24.1. PS/2 Model M77-1NA Tech Specs ΓòÉΓòÉΓòÉ

Note:  These models have been withdrawn from marketing.

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Jump directly to the PS/2 Model M77 486DX2 Systems header.


ΓòÉΓòÉΓòÉ 12.24.1.1. PS/2 Model M77-1NA: Architecture/Memory ΓòÉΓòÉΓòÉ

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 Limitations

 Return to the PS/2 Model M77-1NA header.

 DESCRIPTION                                       9577-1NA
 ARCHITECTURE
 Bus Type                                          Micro Channel
 Microprocessor                                    Intel 486DX2
 Uses 3.3 Volt Technology                          No
 Clock Multiplying                                 Yes (2X)
 Clock Speed (MHz)
  Internal                                         66
  External                                         33
 Internal/External Cache                           Internal (4u)
  Cache Size                                       8K
 Instruction Set                                   32 bit
 Addressing                                        32 bit
 I/O Channel Width                                 32 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          40 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
  DMA Burst Mode Supported                         ???
  24/32-bit DMA Controller                         24
 Upgradeable Processor                             No
  Processor Complex/OverDrive Socket               N/A
  Processor Upgrades Available                     N/A
 Bus Masters Supported                             15
 Interleaved Memory                                Yes
 Matched Memory Cycle                              No (5i)
 Page Memory Logic                                 Yes

 MEMORY
 Standard (Motherboard)                            8MB (2h)
 Maximum (Motherboard)                             32MB
 Maximum (System)                                  32MB (2r)
 Total # of Motherboard SIMM Sockets               4
 # of Motherboard SIMM Sockets Available           3
 Standard Memory Speed (ns)                        70
 Memory Type                                       DRAM
  Memory Interleaving                              Yes
 Wait States: Motherboard                          0
        Adapter                                    N/A (8q)
 Memory Used: Motherboard                          1/2/4/8/16MB SIMMs (70ns)


ΓòÉΓòÉΓòÉ 12.24.1.2. PS/2 Model M77-1NA: Standard Features ΓòÉΓòÉΓòÉ

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 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model M77-1NA header.

 DESCRIPTION                                       9577-1NA
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 BIOS Extensions Stored on Disk                    Yes (5v)
 Setup & Diags Stored on Disk                      Yes (5v)
 Optional Math Coprocessor                         Built-in
  Coprocessor Speed                                66 MHz
 Standard Graphics                                 XGA-2
  8/16/32-bit Controller                           32
  On Motherboard/Adapter                           Motherboard
  132-Column Text Mode                             Yes
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
  Resolutions Supported                            640x480 64K Colors
                                                   800x600 64K Colors
                                                   1024x768 256 Colors
                                                   1280x1024 16 Colors
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 Maximum Graphics                                  XGA-2
 Enhanced Audio Features                           Standard
  Audio Card Used (standard)                       M-Audio Capture and Playback
                                                   Adapter/A (2a)
  Audio Compression Supported                      Yes
  Audio Sampling Supported                         16K
  FM Quality Stereo Sound                          Yes
  Connected to Multimedia Panel                    Yes
 Multimedia Panel Features
  Volume Control                                   Yes
  Stereo Headphone Jack                            Yes
  Mono Microphone Jack                             Yes
  Enhanced Loudspeaker                             Yes
 RS232C Serial Ports                               2
  9/25-Pin                                         9-pin
  UART Chip Used                                   NS16550 Type 4
  Maximum Speed (bits/second)                      345,600
  FIFO Mode Enabled                                Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
  IBM Mouse Included                               Yes
   Mouse Resolution                                Up to 200 DPI, programmable
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 Diskette Drive Support                            Yes
 External SCSI port                                Yes (5c)
  On Motherboard/Adapter                           Motherboard


ΓòÉΓòÉΓòÉ 12.24.1.3. PS/2 Model M77-1NA: Disk/Tape Storage ΓòÉΓòÉΓòÉ

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 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model M77-1NA header.

 DESCRIPTION                                       9577-1NA
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     4
  # of 3.5"/5.25" Bays                             1/3 (6r)(6z)
  # of 3.5"/5.25" Bays Available                   0/1 (8l)
 Selectable Boot                                   Yes
  Bootable Physical Drives                         All
 Diskette Drives Standard                          1x2.88MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)(7t)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (j)(7t)
   Media Sensing                                   No
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      Optional (i)
   Media Sensing                                   No
  3.5" 2.88MB                                      Yes (i)
   Media Sensing                                   Yes
  3.5" Enhanced 2.88MB                             Optional (i)(7v)
   Media Sensing                                   Yes
   Electronic Lock/Eject                           Yes
  Internal Drives Supported                        3
  External Drives Supported                        1 (7t)
  Maximum # Diskette Drives                        4
 Hard Disk Drives Standard                         1x212MB
  Drive Type                                       SCSI
  Encoding Method                                  RLL
  Drive Form Factor                                3.5"
  Average Access Rate (ms)                         12
  Sector Buffer Size                               32K
  Data Transfer Rate (/Second)                     20.1 MBits
  Average Latency (ms)                             6.94
  Rotational Speed (RPMs)                          4320
  # of Heads                                       4
  # of Platters                                    2
  Sectors per Track                                44
  Cylinders                                        2009
  Shock Rating (Gs): Operating                     ??
            Non-operating                          ??
  MTBF (Hours)                                     ???,???
  Interleave Factor                                1:1
  Auto Park                                        Yes
  Maximum # of Internal HD Drives                  2
  Optional HD Sizes Avail:                         170MB (12ms)
                                                   340MB (13ms)
                                                   540MB (8.7ms)
                                                   1GB (8.6ms)
                                                   2GB (9.5ms)
  Maximum Internal HD Capacity                     4GB (3z)(4o)(5k)
 Standard Hard Disk Controller Type                SCSI-2 (SCSI Common Command
                                                   Set V4.B)
  Bus Master                                       Yes
   Adapter/Motherboard                             Motherboard
   Local Bus Implementation                        Yes
   Synchronous/Async Data Transfers                Yes
   16-bit Controller                               Optional
   32-bit Controller with Cache                    Standard
  # of Devices Supported/Adapter                   7/15 (3r)
  # of Adapters Supported/System                   4
  Controller Data Transfer/sec
   Controller to Micro Channel                     16.6 MBytes
   Controller to SCSI devices                      5.0 MBytes
 Internal Rewritable Optical Disk Drive            Optional
  Maximum Internal Drives Supported                1 (5k)
 Internal Optical CD-ROM Drive                     Standard
  (Double-click here for specs)
  Maximum Internal Drives Supported                1 (5k)
  Software CDs Included                            Yes
  Diagnostic CD Included                           Yes

 EXTERNAL EXPANSION UNIT SUPPORT
 IBM 3510 (1-Bay)                                  Yes
 IBM 3511 (7-Bay)                                  Yes
 IBM 3514 (8-Bays, RAID-5, SCSI-2)                 Yes
 IBM 3515 (4-Bays, Streaming Data,
  RAID-0/RAID-1)                                   No

 TAPE STORAGE
 Internal Tape Drive Support
  3.5" Internal Tape Backup Unit                   Yes (9b)
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        No
 External Tape Drive Support
  5.25" QIC SCSI Tape Drive                        Yes
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        Yes


ΓòÉΓòÉΓòÉ 12.24.1.4. PS/2 Model M77-1NA: Expansion/Operating System ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
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 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model M77-1NA header.

 DESCRIPTION                                       9577-1NA
 EXPANSION
 Total Adapter Slots                               5
  # of Long/Short Slots                            5/0
  # of 8/16/32-bit Slots                           0/0/5 (3a)
  # of Slots with Video Extension                  1
 Available Slots                                   4

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        5.00.1 or later
 IBM OS/2                                          2.00.1 (ServicePak Level
                                                   6050) or later
 IBM AIX PS/2                                      1.3.0 or later


ΓòÉΓòÉΓòÉ 12.24.1.5. PS/2 Model M77-1NA: Keyboard/Security ΓòÉΓòÉΓòÉ

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 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model M77-1NA header.

 DESCRIPTION                                       9577-1NA
 KEYBOARD
 122-Key Host-Connected Keyboard (6w)              Yes (8p)
 101-Key Enhanced Keyboard                         Yes (8p)
 84-Key Keyboard                                   Yes (8p)
 Japanese Keyboard                                 No
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         10 (3 meters)

 SECURITY
 Vital Product Data (VPD) Enabled                  Yes (5m)
 C2 Security Enabled                               Yes (7j)
 LogicLock Security                                Yes (7j)
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Cable-Down Capability                             No
 Lockable Cable Cover                              No


ΓòÉΓòÉΓòÉ 12.24.1.6. PS/2 Model M77-1NA: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

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 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model M77-1NA header.

 DESCRIPTION                                       9577-1NA
 PHYSICAL FACTORS
 Footprint Type                                    Desktop or floor standing
  Orientation                                      Horizontal/Vertical (6y)
  Vertical-Mount Floor Stand                       Standard
 Dimensions: Height                                6.6"
        Width                                      17.3"
        Depth                                      15.5"
 Weight (lbs):                                     26.0

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              197
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Manual
 Amperage at:  90-137 VAC                          4.6
        180-265 VAC                                2.0
 Operating Range: Temperature                      50-95┬░ F
           Rel. Humidity                           8-85%
 Maximum Current Leakage (uA)                      <500
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  158
 Noise (Avg dB, Operating, 1m)                     50
    Classification                                 3D

 MISCELLANEOUS
 Software Included                                 Pre-installed (7u)
 FCC Classification                                B
 UL Approval                                       UL 1950, 1st Edition
 CSA Approval                                      CSA22.2 No. 220-M1986
 Warranty Period                                   3 Years
  On-site/Carry-in                                 On-site
  Int'l Traveler's Warranty Service                No
  Countries Warranty Valid In                      U.S./Canada
 BIOS Model/Submodel/Revision                      F8/41/05
 BIOS Dates                                        03Aug92
                                                   28Oct92
 Date Announced                                    21Sep92
 Date Withdrawn                                    04/14/95


ΓòÉΓòÉΓòÉ 12.24.1.7. PS/2 Model M77-1NA: Limitations ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model M77-1NA header.

 The following limitations apply to this system.

     Only 2MB, 4MB, and 8MB 70-nanosecond single in-line memory modules
      (SIMMs) are supported.
     Display adapter cards that use the Auxiliary Video Extension, when
      installed in a system, require installation in slot 2 and attachment of a
      display to the system video connector during configuration of the system.
     The total length of all SCSI cables for external devices that operate
      from the external SCSI connector may not exceed a maximum of five meters
      (approx. 16.5 feet) including the cables inside each SCSI device.


ΓòÉΓòÉΓòÉ 12.25. PS/2 Model 90 486DX2 Systems ΓòÉΓòÉΓòÉ

This section contains feature and technical specification information for the
486DX2-based Model 90 systems.

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 50/25MHz Systems
 PS/2 Model 90-0LA/0LF/DLA/DLG/KLA/KLG/QLA (9590)

 Return to the PS/2 Features and Technical Specs header.


ΓòÉΓòÉΓòÉ 12.25.1. PS/2 Model 90-0LA/0LF/DLA/DLG/KLA/KLG/QLA Tech Specs ΓòÉΓòÉΓòÉ

The PS/2 Models 90-0LA/0LF/DLA/DLG/KLA/KLG/QLA are identical except for the
hard disk drive used, and the operating system included.  Therefore all models
will be covered by this one document. Differences will be indicated by model
number in parentheses.

Note:  These models have been withdrawn from marketing.

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and Enter keys, to select the section to which you wish to jump, below:

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 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Jump directly to the PS/2 Model 90 486DX2 Systems header.


ΓòÉΓòÉΓòÉ 12.25.1.1. PS/2 Model 90-0LA/0LF/DLA/DLG/KLA/KLG/QLA: Architecture/Memory ΓòÉΓòÉΓòÉ

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and Enter keys, to select the section to which you wish to jump, below:

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 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 90-0LA/0LF/DLA/DLG/KLA/KLG/QLA header.

 DESCRIPTION
                                                   9590-0LA/0LF/DLA/DLG/KLA/KLG/QLA
 ARCHITECTURE
 Bus Type                                          Micro Channel (5t)
 Microprocessor                                    486DX2 (5t)
 Uses 3.3 Volt Technology                          No
 Clock Multiplying                                 Yes (2X)
 Clock Speed (MHz)
  Internal                                         50
  External                                         25
 Clock Speed                                       50/25 MHz
 Instruction Set                                   32 Bit
 Addressing                                        32 Bit
 I/O Channel Width                                 32 Bit
 Memory Channel Width                              64 bit
 Interrupt Levels                                  16
  Type (MCA)                                       Level-sensitive, shareable
 Maximum Bus Data Transfer Rates
  MCA Burst Transfer Mode                          40 Mbytes/second
 Bus Data/Address Parity Checking
  MCA Bus                                          Yes
 DMA Channels                                      15 (4m)
  DMA Burst Mode Supported                         Yes
 24/32-bit DMA Controller                          24
 Bus Masters Supported                             15
 486 Burst Mode Enabled                            Yes
 Upgradeable Processor Complex                     Yes (5t)
  Processor Upgrades Available                     66/33MHz 486DX2 |
                                                   50MHz 486DX
                                                   60MHz Pentium
 Matched Memory Cycle                              N/A (5i)
 Page Memory Logic                                 Yes
 256K Level 2 Processor Cache                      Not Supported

 MEMORY
 Standard (Motherboard)                            8MB (2r)
 Maximum (Motherboard)                             64MB (5j)
 Maximum (System)                                  64MB (2r)
 Total # of Motherboard SIMM Sockets               8
 # of Motherboard SIMM Sockets Available           ?
 Memory Chip Speed (ns)                            70 (9r)(5o)
 Memory Type                                       DRAM
  Memory Interleaving                              Yes
 Memory Cache Controller                           Yes
  Internal/External Cache                          Internal
  Standard Memory Cache Size                       8K
  Optional External Memory Cache                   No
 Wait States: Motherboard                          0
        Adapter                                    N/A (8q)
 Memory Chips Used: System Bd                      2/4/8MB SIMMs


ΓòÉΓòÉΓòÉ 12.25.1.2. PS/2 Model 90-0LA/0LF/DLA/DLG/KLA/KLG/QLA: Standard Features ΓòÉΓòÉΓòÉ

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and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 90-0LA/0LF/DLA/DLG/KLA/KLG/QLA header.

 DESCRIPTION
                                                   9590-0LA/0LF/DLA/DLG/KLA/KLG/QLA
 STANDARD FEATURES
 ROM Size                                          128K
 ROM Shadowing                                     Yes
 BIOS Extensions Stored on Disk                    Yes (5v)
 Setup & Diags Stored on Disk                      Yes (5v)
 Optional Math Coprocessor                         Built-in
  Coprocessor Speed                                50 MHz
 Standard Graphics                                 XGA-2
  8/16/32-bit Controller                           32
  Bus Master                                       Yes
  Video Memory (DRAM) Standard                     1MB
  132-Column Text Mode                             Yes
  Resolutions Supported                            640x480 64K Colors
                                                   800x600 64K Colors
                                                   1024x768 256 Colors
                                                   1280x1024 16 Colors
  ISO 9241 Part 3 Compliant                        Yes (1w)
   Non-Interlaced/Flicker-Free                     Yes
 Maximum Graphics                                  XGA-2
 RS232C Serial Ports                               2
  UART Chip Used                                   ???
  Maximum Speed (bits/second)                      345,600
   FIFO Mode Enabled                               Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 Pointing Device Ports                             1
 Parallel Printer Ports                            1
  Bi-directional                                   Yes
  Supports DMA Data Transfer                       Yes
  Maximum Ports Supported                          8 (6i)
 CMOS Clock                                        Yes
 Battery Life (years)                              5
  Replaceable                                      Yes
 SCSI port                                         Yes (5c)
  Internal/External Connectors                     Yes/Yes
  On Motherboard/Adapter                           Motherboard


ΓòÉΓòÉΓòÉ 12.25.1.3. PS/2 Model 90-0LA/0LF/DLA/DLG/KLA/KLG/QLA: Disk/Tape Storage ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 90-0LA/0LF/DLA/DLG/KLA/KLG/QLA header.

 DESCRIPTION
                                                   9590-0LA/0LF/DLA/DLG/KLA/KLG/QLA
 DISK STORAGE
 Internal Disk/Tape Drive Bays                     4
  # of 3.5"/5.25" Bays                             3/1
  # of 3.5"/5.25" Bays Available                   1/1
 Selectable Boot                                   Yes
  Bootable Physical Drives                         All
 Diskette Drives Standard                          1x2.88MB
 Optional Diskette Drives
  5.25" 360K                                       Optional (g)(7t)
   Media Sensing                                   No
  5.25" 1.2MB                                      Optional (j)(7t)
   Media Sensing                                   No
  3.5" 720K                                        No (y)
  3.5" 1.44MB                                      Optional (i)
   Media Sensing                                   Yes
  3.5" 2.88MB                                      Optional (i)
   Media Sensing                                   Yes
  Internal Drives Supported                        3 (5r)
  External Drives Supported                        1 (4n)
  Maximum # Diskette Drives                        4 (4n)(5r)
 Hard Disk Drives Standard                         1x212MB (0NA/DNA/KNA/QNA)
                                                   (6h)
                                                   1x400MB (0NF)
                                                   1x540MB (DNG/KNG/QNG) (6h)
  Drive Type                                       SCSI
  Encoding Method                                  RLL
  Drive Form Factor                                3.5"
  Average Access Rate (ms)                         12 (212MB)
                                                   11.5 (400MB)
                                                   10 (540MB)
  Sector Buffer Size                               32K (212MB)
                                                   128K (400MB)
                                                   256K (540MB)
  Data Transfer Rate (/Second)                     20.1 Mbits (212MB)
                                                   2.0 MBytes (400MB)
                                                   3.22 MBytes (540MB)
  Average Latency (ms)                             6.94 (212MB)
                                                   6.95 (400MB)
                                                   5.55 (540MB)
  Rotational Speed (RPMs)                          4320 (212MB)
                                                   4316 (400MB)
                                                   6300 (540MB)
  # of Heads                                       4 (212MB)
                                                   14 (400MB)
                                                   7 (540MB)
  # of Platters                                    2 (212MB)
                                                   8 (400MB)
                                                   4 (540MB)
  Sectors per Track                                44 (212MB)
                                                   48 (400MB)
                                                   ?? (540MB)
  Cylinders                                        2009 (212MB)
                                                   1199 (400MB)
                                                   2466 (540MB)
  Shock Rating (Gs): Operating                     ?? (212MB)
                                                   10 (400MB/540MB)
            Non-operating                          ?? (212MB)
                                                   35 (400MB)
                                                   70 (540MB)
  MTBF (Hours)                                     ?? (212MB)
                                                   150,000 (400MB)
                                                   300,000 (540MB)
  Interleave Factor                                1:1
  Auto Park                                        Yes
  Maximum # of Internal HD Drives                  3
  Optional HD Sizes Available:                     170MB (13ms)
                                                   340MB (13ms)
                                                   540MB (8.7ms)
                                                   1GB (8.6ms)
                                                   2GB (9.5ms)
  Maximum Internal HD Capacity                     6GB (3z)(4o)(5k)(6h)
 Standard Hard Disk Controller Type                SCSI
  Bus Master                                       Yes
   16-bit Adapter                                  Optional
   32-bit Adapter with Cache                       Standard
  # of Devices Supported/Adapter                   7/15 (3r)
  # of Adapters Supported/System                   4
  Controller Data Transfer/second
   Controller to Micro Channel                     16.6 MBytes
   Controller to SCSI devices                      5.0 MBytes
 Internal Rewritable Optical Disk Drives           Optional
  Maximum Internal Drives Supported                1 (5k)
 Internal Optical CD-ROM Drives                    Optional
  Maximum Internal Drives Supported                1 (5k)

 TAPE STORAGE
 Internal Tape Drive Support
  3.5" Internal Tape Backup Unit                   Yes (9b)
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        No
 External Tape Drive Support
  5.25" 6157 Streaming Tape                        Models 001/002 (c)
  5.25" QIC SCSI Tape Drive                        Yes
  5.25" 4mm SCSI Tape Drive                        Yes
  5.25" 8mm SCSI Tape Drive                        Yes


ΓòÉΓòÉΓòÉ 12.25.1.4. PS/2 Model 90-0LA/0LF/DLA/DLG/KLA/KLG/QLA: Expansion/Operating System ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 90-0LA/0LF/DLA/DLG/KLA/KLG/QLA header.

 DESCRIPTION
                                                   9590-0LA/0LF/DLA/DLG/KLA/KLG/QLA
 EXPANSION
 Total Adapter Slots                               4
  # of Long/Short Slots                            4/0
  # of 8/16/32-bit Slots                           0/0/4 (3a)
  # of Slots with Video Extension                  1
  Non-RAM use of 32-bit Slots                      Yes
 Available Slots                                   3 (5l)
  Maximum RAM with Available Slots                 64MB (8q)

 OPERATING SYSTEM SUPPORT
 IBM PC-DOS                                        5.0 or later
 IBM OS/2                                          1.30.1 or later
 IBM AIX PS/2                                      1.3 or later


ΓòÉΓòÉΓòÉ 12.25.1.5. PS/2 Model 90-0LA/0LF/DLA/DLG/KLA/KLG/QLA: Keyboard/Security ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 90-0LA/0LF/DLA/DLG/KLA/KLG/QLA header.

 DESCRIPTION
                                                   9590-0LA/0LF/DLA/DLG/KLA/KLG/QLA
 KEYBOARD
 122-Key Host-Connected Keyboard (6w)              Yes (8p)
 101-Key Enhanced Keyboard                         Yes (8p)
 84-Key Space-Saving Keyboard                      Yes (8p)
 Japanese Keyboard                                 No
 Keyboard Slope                                    5┬░
 Fast Keyboard Speed Setting                       Yes
 Keyboard Cord Length (ft)                         6.0

 SECURITY
 Vital Product Data (VPD) Enabled                  Yes (5m)
 C2 Security Enabled                               Yes (7j)
 LogicLock Security                                Yes (7j)
 Keylock: Locks Cover                              Yes
      Locks Keyboard                               No
 Cable-Down Capability                             No
 Lockable Cable Cover                              No


ΓòÉΓòÉΓòÉ 12.25.1.6. PS/2 Model 90-0LA/0LF/DLA/DLG/KLA/KLG/QLA: Physical/Environmental/Misc ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the 90-0LA/0LF/DLA/DLG/KLA/KLG/QLA header.

 DESCRIPTION
                                                   9590-0LA/0LF/DLA/DLG/KLA/KLG/QLA
 PHYSICAL FACTORS
 Footprint Type                                    Desktop
 Dimensions: Height                                5.5"
       Width                                       17.3"
       Depth                                       16.9"
 Weight (lbs)                                      25.0
 Max Monitor Weight Supported by Cabinet (lbs)     40 (4z)

 ENVIRONMENTAL FACTORS
 Power Supply (Watts)                              194
  World-wide (110/60,220/50)                       Yes
  Auto-Sensing/Switching                           Yes
 Amperage at:  90-137 VAC                          4.8
        180-264 VAC                                2.4
 Maximum Current Leakage (uA)                      <500
 Operating Range: Temperature                      50-95┬░ F
          Rel. Humidity                            8-80%
 Maximum Current Leakage (uA)                      <500
 Maximum Operating Altitude(ft)                    7000
 Heat (BTUs/Hour)                                  662
 Noise Level Classification                        ???
  Noise (Avg dB, Operating, 1m)                    51

 MISCELLANEOUS
 Software Included                                 OS/2 2.00.1 (0LA/0LF)
                                                   DOS 5.02/Win 3.1 (QLA)
                                                   OS/2 2.1 (KLA/KLG)
                                                   Choice of DOS 5.02/Win 3.1,
                                                   DOS 6.1/Win 3.1, OS/2
                                                   2.00.1, or OS/2 2.1
                                                   (DLA/DLG)
 FCC Classification                                B
 UL Approval                                       UL 478, 5th Edition
 CSA Approval                                      CS220
 Warranty Period                                   3 Years onsite
 BIOS Model/Submodel/Revision                      F8/3F/03
 BIOS Date                                         04/20/93
 Date Announced                                    03/23/93 (0LA/0LF)
                                                   05/04/93 (QLA)
                                                   05/25/93 (KLA/KLG)
                                                   07/13/93 (DLA/DLG)
 Date Withdrawn                                    07/26/93 (0LA/0LF)
                                                   08/16/93 (KLA/KLG/QLA)
                                                   07/12/95 (DLA/DLG)


ΓòÉΓòÉΓòÉ 12.25.1.7. PS/2 Model 90-0LA/0LF/DLA/DLG/KLA/KLG/QLA: Limitations ΓòÉΓòÉΓòÉ

To jump directly to the other sections of this document, use the mouse, or Tab
and Enter keys, to select the section to which you wish to jump, below:

 Sections
 Architecture/Memory                               Standard Features
 Disk/Tape Storage                                 Expansion/Operating Systems
 Keyboard/Security                                 Physical/Environmental/Misc
 Limitations

 Return to the PS/2 Model 90-0LA/0LF/DLA/DLG/KLA/KLG/QLA  header.

 The following options and adapters are Not supported by this system.

     1MB Memory Module Kit--85ns (6450603)
     1.44MB Diskette Drive (6451026/#1026; replaced by 6451072/#1072)
     2MB Memory Module Kit--85ns (6450604)
     256K Level 2 Cache Option (6451095)
     2-6MB Memory Expansion Option (6450367)
     2-14MB Memory Expansion Option (34F3077)
     320MB SCSI Hard Disk Drive (6451055/#1055; replaced by 6451234/#1108)
     4-14MB Memory Expansion Option (34F3011)
     5.25" 360K External Diskette Drive (4869-001)
     5.25" 360K External Diskette Drive Adapter/A (6450245/#8760)
     5.25" 1.2MB External Diskette Drive (4869-002)
     5.25" 1.2MB External Diskette Drive Adapter/A (6451007/#1007)
     5.25" 1.2MB Internal Diskette Drive (6451006; replaced by 6451066)
     8514/A Adapter (1887744)
     8MB Memory Module Kit--85ns (6450605)
     CD-ROM Drive (6450845/#0845; replaced by 6451113/#1113)

 (1)  ARTIC Multiport/2 (09F1897 or 16F1820) cannot be used in slot 4 (OK in
 slots 2 or 3)

 (2)  ARTIC Portmaster/2 (53F2607, 53F2604, or 53F2607) cannot be used in slot
 4 (OK in slots 2 or 3)

 (3)  16-bit bus masters which support 32-bit addressing (such as the PS/2 SCSI
 Adapter), will cause system malfunction or potential loss of data when more
 than 16MB of RAM is installed in the system.


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This - See how easy it is?  Now press the ESC key (or double-click on the icon
in the upper left corner of this window), to close this panel.


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Help - The Action Bar Help option may be selected for information on using the
Help facility.  In addition, you may press the F1 key for more information on a
specific topic.  Help is context-sensitive, so if you highlight a menu option,
and press F1, you will get help for that menu option.  Pressing F1 on an entry
panel will get help on those selection choices.


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Bookmark - When you place a bookmark on a topic, it is added to a list of
bookmarks you have previously set.  You can view the list, and you can remove
one or all bookmarks from the list.  If you have not set any bookmarks, the
list is empty.

To set a bookmark, do the following:

   1. Select a topic from the Contents.
   2. When that topic appears, choose the Bookmark option from the Services
      pull-down.
   3. If you want to change the name used for the bookmark, type the new name
      in the field.
   4. Click on the Place radio button (or press the Up or Down Arrow key to
      select it).
   5. Click on OK (or select it and press Enter). The bookmark is then added to
      the bookmark list.


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Search - You can specify a word or phrase to be searched.  You can also limit
the search to a set of topics by first marking the topics on the Contents list.
Multiple topics may be marked. To mark a topic, simply hold the Ctrl key and
click on a topic with the mouse.  You will notice that the topic highlighting
bar will be enlarged.  This indicates that the topic has been marked.  To
unmark a topic, just repeat this procedure.

To search for a word or phrase in all topics, do the following:

   1. Choose the Search option from the Services pulldown.
   2. Type the word or words to be searched.  (An asterisk (*) can be used
      before and/or after the search string to perform a wildcard search on a
      portion of a word.)
   3. Click on All sections (or press the Up or Down Arrow keys to select it).
   4. Click on Search (or select it and press Enter) to begin the search.
   5. The list of topics where the word or phrase appears is displayed. If you
      do not get a "hit" on a phrase, try just one of the words in the phrase.
      You may have better luck that way.  Double-clicking on a topic heading
      will display the contents of that section, and the search criteria will
      be highlighted in red, to make them easier to find.


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Print - You can print one or more topics.  You can also print a set of topics
by first marking the topics on the Contents list.  Multiple topics may be
marked.  To mark a topic, simply hold the Ctrl key and click on a topic with
the mouse.  You will notice that the topic highlighting will be enlarged.  This
indicates that the topic has been marked.  To unmark a topic, just repeat this
procedure.

To print the document Contents list, do the following:

   1. Choose Print from the Services pull-down.
   2. Click on Contents (or press the Up or Down Arrow key to select it).
   3. Click on Print (or select it and press Enter).
   4. The Contents list is printed on your printer.


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Copy - You can copy a topic you are viewing into a temporary file named
TEXT.TMP.  You can later edit that file by using a text editor, such as the
System Editor or Enhanced Editor supplied with OS/2.

To copy a topic, do the following:

   1. Expand the Contents list and select a topic.
   2. When the topic appears, choose Copy to file from the Services pull-down.
   3. The system puts the text pertaining to that topic in the temporary
      TEXT.TMP file.

 For information on one of the other choices in the Services pull-down,
 highlight the choice and press the F1 key.


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Options - You can control the appearance of the Contents list.

To expand the Contents and show all levels for all topics, choose Expand All
from the Options pulldown. You can also press the Ctrl and * keys together.

For information on one of the other choices in the Options pull-down, highlight
the choice and press the F1 key.


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IBM OS/2 BBS (USA) - Run by IBM, on a subscription basis.  The OS/2 BBS enables
you to access OS/2 technical information, exchange messages with other OS/2
users, and submit program defects to IBM.  Monitored by IBM support personnel.
For subscription and access information, call 800-547-1283.  Only available in
the USA and Puerto Rico.  Similar programs may be available in other countries.


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IBM PC Company BBS - 100+ phone lines.  Run by IBM.  The IBM PCC BBS features
product conferences on PC and PS/2 products, DOS and OS/2, AIX and RS/6000, and
more.  There are also product announcements, downloadable program and text
files, and OS/2 device drivers.  The latest version of the PS Assistant can
always be found on this BBS. Connection information:

     Telephone Number: 919-517-0001
     Internal Tie Line: 255-0001
     Modem Speeds: 300-14,400 bps
     Modems Available: USR Courier HST Dual-Standard V.32bis rack-mounted
     Parity/Data Bits/Stop Bits: N,8,1
     Hours of Operation: 24 hrs a day, 7 days a week
     BBS Software: Multi-Net (OS/2-based), OS/2 LAN Server (Token-Ring
      network), Quadron serial port drivers (for ARTIC Portmaster multiport
      adapters).
     FTP: ftp.pcco.ibm.com
     WWW: http://www.pc.ibm.com
     SysOp: Dav Coleman
     Usage Charge: None


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OS/2 Shareware BBS - Catering to OS/2 users and developers; openly available on
seven phone lines with an additional nine lines and Internet access for
subscribing callers.  More than 10,500 OS/2 specific files available for
download totalling over 2.0 gigabytes of data in 30 file areas.  Special file
areas supporting specific software vendors are also available.  Full access
given on first call with no upload/download ratios enforced. 8,600 active
callers from 33 countries.  Currently taking over 36,000 calls a month (April
1995).  Connected to five computer networks.  Carrying 64 OS/2-related message
conferences.  Connection information:

     Main Telephone Number: 703-385-4325
     Additional Phone Number: 703-385-8450 (Only for callers with subscriber
      level access)
     Modems Available: USR 28.8K bps Sportster; Microcom V.FC 28.8K bps.
     Modem Speeds: 300-28,800
     Parity/Data Bits/Stop Bits: N,8,1
     Hours of Operation: 24 hours/7 days
     BBS Software: Maximus (OS/2-based)
     Fidonet Address: 1:109/347
     FTP Site: bbs.os2bbs.com
     Web site: http://www.os2bbs.com
     Sysop: Pete Norloff
     Usage Charge: (see below)

 The following contributions are requested for access to the Subscriber phone
 number.

                               6 month    12 month
                               access      access
                                $27         $48

                                             Download
                               Minutes   Mbytes    Phone
                               Per Day   Per day   Lines
  Non-contributor access:        30        1.0       7
  Subscriber access:            120       20.0      16 (plus Internet access)

 New callers have immediate full free access on the open node, with the above
 time and download limits.


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D - D-shell connector


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T - Terminator


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* - T-RES chip removed


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1 - Cable included with option


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2 - Card to Option Cable (P/N 6451041; F/C 1041)


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3 - Option to Option Cable (P/N 6451042; F/C 1042)


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(91) - Available as a processor card upgrade only.  The x4x/x5x system
Model/Submodel/Revision ID bytes are unchanged.


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(92) - Adds math coprocessor feature; equivalent to 486DX.  Available as a
processor complex upgrade only.


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(93) - Available as a processor complex upgrade only.


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(a) An optional Expanded Memory Adapter (XMA) permits the addition of 2MB of
Expanded (non-contiguous, non-protected mode) memory, which is addressed in the
<1MB memory range; unlike Extended memory, which is addressed in the >1MB
range, and which requires a 286 or 386 microprocessor to operate.


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(b) The 128K Upgrade Kit consists of four 64K x 4-bit chips and two 64K x 1-bit
chips.


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(c) Requires an optional adapter, which uses 1 adapter slot.


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(d) While the VLSI Technology, Inc. TopCat 386 chipset does not support 486
burst mode, the performance is nearly identical to the VLSI SC486 chipset which
does.  In fact, while only a few percent slower on a 486/33 system, the TopCat
386 chipset actually performs faster than the SC486 chipset on a 486/25 system.


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(e) Requires the optional 20MB Hard Disk Upgrade Kit.


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(f) The one available "slot" is dedicated to the optional 9600/2400 bps
FAX/Modem, or the optional 2400 bps data modem. They are mutually exclusive.


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(g) External attachment only.


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(h) The external 360K diskette drive option and second 720K diskette drive or
fixed disk drive are mutually exclusive.


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(i) Internal installation only.


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(j) Internal or External option.


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(k) Supports an external keypad sold by CNF; not available from IBM.


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(l) Optional 20MB drive with integrated controller=80ms; optional 20MB drive
with separate adapter (no longer sold)=38ms.


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(m) The choice of keyboards includes: Enhanced 101-Key Keyboard and PS/2
Enhanced Mouse (400 dpi), Quiet 101-Key Keyboard and PS/2 Enhanced Mouse,
Enhanced 101-Key Keyboard with built-in TrackPoint II (no mouse), or Quiet
Touch 101-Key Keyboard with built-in TrackPoint II.

Optionally available via Special Bid are the Host-Connected 122-Key Keyboard,
the Japanese Enhanced 106-Key Keyboard, and the Latin American Spanish Enhanced
102-Key Keyboard.


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(n) The optional hard disk drive includes a keylock, which locks both the cover
and the keyboard.


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(o) Includes the built-in display.


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(p) The PS/2 Model N45 and ThinkPad 300 support the following external
keyboards:

     Cherry 102
     Compaq PS/2
     IBM 101
     NDL Honeywell
     Zenith 101
     Zenith 101 Alps
     Zenith 102 Honeywell


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(q) Using the PS/2 Display Adapter and 8507 Monochrome Display.


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(r) If this system is LAN-attached, 1.30.2 is required.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(s) The long slot is taken by the standard Token-Ring adapter; only the short
(8") slot is available.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(t) A 20MB or 30MB hard disk drive may be added in the B: drive bay, but would
require the removal of a second diskette drive, if installed.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(u) The 360K external diskette drive option and a second internal 720K drive
are mutually exclusive (because they both require the same diskette drive
cable).  A second 720K drive, and a  hard disk drive (which both require the B:
drive bay) are also mutually exclusive.  However, the 360K drive, and fixed
disk drive MAY be used concurrently.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(v) Connection can be by 10BaseT or via Attachment Unit Interface (AUI).
10Base2, 10Base5, or fiber optic cable may be accomplished via AUI and a
user-provided external transceiver.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(w) The LCD indicators include:  Power, Hard Disk Drive in Use, Diskette Drive
in Use, NumLock, CapsLock, Scroll Lock, and Keypad Lock.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(x) The hard disk drive controller is integrated with the drive, and therefore
uses No adapter slots.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(y) 1.44MB and 2.88MB drives can reliably Read/Write/Format 720K diskettes to
720K; therefore a 720K diskette drive is not necessary.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(z) The second 1.44MB diskette drive, and hard disk drive are mutually
exclusive; as are the second 1.44MB diskette drive and the external 360K
diskette drive.  The hard disk drive and 360K drive CAN be used together.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(1w) ISO Standard 9241 encompasses hardware and software in the user's
environment.  Part 3 of this standard covers Visual Display Unit (VDU) fonts,
text colors, physical design and front of screen display, which includes
flicker, jitter, glare, and contrast.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(2a) Adapter, included, uses 1 adapter slot.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(2b) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(2c) 512K on the System Board, and 12MB on a 0-12MB Multifunction Adapter.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(2d) Requires the installation of a 30MB or larger hard disk drive.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(2e) Without the optional hard disk; 19.0 lbs with the hard disk.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(2f) Requires the addition of a 20MB (or larger) hard disk drive.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(2g) The IBM 486SLC2 processor runs internally at twice the speed of the system
(50/25MHz), producing performance faster between that of an Intel 33MHz 486DX
and an Intel 486DX2-50, due to the 16K internal cache, clock-doubling, and
optimized instruction set.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(2h) Using one 8MB 70ns SIMM.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(2i) Both drives offer equivalent overall performance.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(2j) The second 1.44MB diskette drive and the 3.5" Internal Tape Backup Unit
are mutually exclusive (both require the B: drive bay/cable).


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(2k) The optional 60MB, self-parking, 27ms drive (and interposer card) REPLACES
the standard 20MB, Non-self-parking, 80ms drive (and adapter).


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(2l) 1MB on the System Board, and 8MB on an Adapter.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(2m) 0 Wait States using the 2-8MB 80286 Memory Expansion Option; 1 WS using
the 0-8MB Expanded Memory Adapter (XMA)/A, or 2MB XMA.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(2n) The optional 60MB, self-parking, 27ms drive (and interposer card) REPLACES
the standard 30MB, Non-self-parking, 39ms drive and interposer card.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(2o) One adapter slot is taken by the standard hard disk drive adapter.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(2p) 2MB on the motherboard (requires replacing the standard 1MB SIMM with a
2MB SIMM), and 8MB on Adapter.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(2q) Using two 1MB SIMMs.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(2r) The top 128K is reserved for High-Performance BIOS (also called ROM
Shadowing, or Shadow ROM), and is therefore Not available to the operating
system.  There is no way to disable High-Performance BIOS to free up this
memory.  So the POST memory count will reflect 128K less than the installed
total.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(2s) The initial 1MB motherboard SIMMs are 100ns; replacement 2MB or 4MB SIMMs
are 85ns.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(2t) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(2u) 8MB on the System Board, and 8MB on an adapter.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(2v) AIX requires a 60MB or larger hard disk drive.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(2w) Using one 2MB SIMM.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(2x) The internal 1.2MB diskette drive, the internal 3363 optical disk drive,
and the second hard disk drive are mutually exclusive (each requires the D:
drive bay).


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(2y) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(2z) The internal 1.2MB diskette drive, the internal 3363 optical disk drive,
and the second hard disk drive are mutually exclusive (each requires the D:
drive bay).


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(3a) All 16-bit slots support 8- or 16-bit adapters; all 32-bit slots support
8-, 16-, or 32-bit adapters.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(3b) 6MB on the System Board, and 10MB on an Adapter (using P/N 34F3011 or
34F3077).


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(3c) Advanced memory caching allows memory to operate at 0 Wait States 95% of
the time.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(3d) 8MB on the System Board, and 8MB on an Adapter (using P/Ns 6450609,
34F3011, or 34F3077).


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(3e) A 25MHz 486DX out-performs a 25MHz 386DX (with 25-MHz 387 Math
Coprocessor) by a factor of 2-3.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(3f) Internal caching is much faster than external caching, so the cache does
not need to be as large.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(3g) The 486DX microprocessor includes a built-in Math Coprocessor  function.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(3h) Also includes a port for an external analog display.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(3i) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(3j) Includes the weight of the built-in gas plasma display.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(3k) Using one 1MB daughtercard.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(3l) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(3m) 2MB on System Board, 14MB on Adapter (using P/N 34F3011 or 34F3077).


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(3n) Using two 1MB daughtercards.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(3o) Requires that both standard 1MB daughterboards be replaced by 2MB cards).
While not officially supported (the 2MB cards did not come out until after the
80-041/071 systems were announced), experience has shown the 2MB cards to be
fully compatible with these systems.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(3p) Using one 2MB daughtercard.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(3q) 4MB on the System Board, and 12MB on an Adapter (using P/N 34F3011 or
34F3077).


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(3r) The SCSI controller supports 7 physical devices or up to 15 logical
devices.  Physical Devices include diskette drives, hard disk drives, optical
disk drives, tape drives, SCSI scanners, and SCSI PostScript printers.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(3s) The SCSI controller, included, uses one adapter slot.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(3t) The internal 1.2MB diskette drive, the internal 3363 Optical Disk Drive, a
5.25" hard disk drive, and the 3rd and 4th 3.5" SCSI drives are mutually
exclusive (each requires the 5.25" ("E") drive bay).


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(3u) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(3v) The 5.25" drive bay can hold either one 5.25" drive, or two 3.5" drives
(with special installation kit).


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(3w) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(3x) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(3y) The optional 32-bit SCSI Adapter with Cache may be used in a 16-bit slot;
however the controller then operates in 16-bit mode, reducing disk throughput.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(3z) Internal hard disk drives only.  Externally-attached SCSI drives are in
addition to this amount.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(4a) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(4b) Using one 4MB daughtercard.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(4c) This system is certified to be FCC Class B when not connected to a
network, but is configured with an FCC Class A Token-Ring Adapter, and is
therefore not intended for use in a residential environment.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(4d) Systems with serial numbers above 9000000 come with 1MB installed; those
with S/Ns below 9000000 include 512K standard.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(4e) Systems with serial numbers from 7159000-7163999, and 9000000 or above,
come with 2MB installed; those with S/Ns below 7159000, and from
7164000-7199999, include 1MB standard.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(4f) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(4g) The TMC-850IBM Internal adapter requires available drive bays for SCSI
devices.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(4h) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(4i) An RPQ (#P91038) is available to run the PS/2 Internal Tape backup Unit in
AIX native mode.  This RPQ is available from any IBM marketing representative.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(4j) Plus an optional PCMCIA Type II Flash Memory drive, or Type III hard disk
drive, if desired.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(4k) Requires the removal of the standard SIMM(s), and replacement with 4MB
SIMMs (55-031/061 and 65-061/121/321 only).


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(4l) Requires optional SCSI Adapter.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(4m) Up to 15 DMA devices may be installed in the system, of which up to 8 may
be transferring data at one time.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(4n) Using the built-in diskette drive controller.  Additional (SCSI) diskette
drives may be attached to the standard SCSI controller.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(4o) Requires replacing the standard drive with an optional drive.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(4p) Using the standard hard disk drive adapter.  Adding a SCSI adapter will
allow up to 7 additional drives of varying capacities to be added.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(4q) In a system with both ESDI and SCSI controllers, the ESDI controller is
primary.  The SCSI drive letters begin where the ESDI drive letters leave off.
Therefore, the bootable C: drive will always be on the ESDI controller.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(4r) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(4s) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(4t) The second diskette drive drive and the hard disk drive are mutually
exclusive.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(4u) A small internal cache is faster than a larger external cache, due to the
delay in accessing an external cache.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(4v) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(4w) The attachment of an optional 3550 Expansion Unit (Model 1 or 2, as
appropriate), provides these systems with two full-length 16-bit Micro Channel
slots, one half-height 5.25/3.5" drive bay, and one SCSI port.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(4x) The third and fourth internal hard disk drives can be installed using the
IDE Hard Disk Cable Option P/N 06H3610.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(4y) 80ns and 85ns SIMMS may be used in this system, and the system will
automatically adjust to the slower speed memory. However wait states will be
inserted, reducing overall system performance.  For optimal performance in this
system, use only 70ns memory.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(4z) 60 lbs, if weight is distributed to all 4 sides of cabinet.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(5a) Although an XGA controller is integrated into the system board, the gas
plasma display is only capable of producing VGA images.  For full XGA support
an external hi-res monitor (such as the IBM 8514 and 8515 color displays, or
the 8507 mono display) is required.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(5b) A 360K diskette drive controller with external port is integrated into the
system board.  An optional external drive cable (P/N 23F2716) is required to
use the IBM 360K external diskette drive (4869001).


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(5c) The controller is integrated into the motherboard and therefore does Not
require an adapter slot.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(5d) An optional keyboard extension cord (P/N 79F3210) is available.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(5e) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(5f) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(5g) Using four 4MB SIMMs on the system board.  If 2MB SIMMs are used on the
system board the limit is 8MB.  In this case the 2-8MB adapter (P/N 6450609)
can be used to install the remaining 8MB; however this will use up an adapter
slot.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(5h) Using four 256K SIMMs.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(5i) Matched Memory Cycles are only enabled when adapter memory is used.
Motherboard memory does not require Matched Memory Cycles.  This system does
not use adapter memory.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(5j) Using eight 8MB SIMMs.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(5k) Optional External SCSI Storage Enclosures (3511-0V0, 7 bays; or 3510-0V0,
1 bay) may be used to add additional disk drives per externally to the system.
Up to four SCSI adapters (available adapter slots permitting) can be used.
Each adapter supports up to 7 internal or external SCSI devices (in any
combination of 7), regardless of which enclosures are used; multiple 35100V0
enclosures may be attached to one adapter.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(5l) The standard 32-bit SCSI Adapter with Cache takes up one of the adapter
slots.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(5m) Vital Product Data information allows a network server to poll a
workstation for its serial number, model/submodel ID, motherboard serial
number, manufacturing ID, motherboard FRU number, and motherboard part number.
This allows the server to check for unauthorized systems connected to the
network.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(5n) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(5o) The use of 70ns memory allows the 33MHz or 50MHz processor upgrade option
to be installed without requiring the replacement of existing (>70ns) memory
with faster (70ns) SIMMs, or inserting memory wait states.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(5p) Using pairs of 2MB SIMMs - Interleaved memory requires that SIMMs be
installed in pairs of equal capacity and speed.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(5q) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(5r) The built-in diskette drive controller supports up to 3 devices.  The A:
bay contains a 1.44MB drive.  The other devices may be composed of two of the
following: another 1.44MB drive, an internal 1.2MB diskette drive, or an
Internal Tape Backup Unit (or the newer DualStor Internal Tape Backup Unit).
For a 4th device, the 1.2MB diskette drive adapter (P/N 6451007) may be used to
attach an external 360K or 1.2MB diskette drive (P/N 4869001/4869002) in
addition to the previously mentioned diskette and tape drives.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(5s) Requires the optional 1.2MB diskette drive adapter (P/N 6451007).  The
built-in diskette drive connector is only for the 360K external diskette drive.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(5t) The processor and Micro Channel Architecture circuitry are contained on a
special Processor Complex card that doesn't take up an adapter slot (not on the
motherboard itself).  The use of this card allows not only the processor to be
upgraded easily, but also the speed and function of the Micro Channel
Architecture itself.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(5u) The optional 256K external cache is contained on a special adapter that
does not take an adapter slot.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(5v) This system reserves a 3MB disk partition for the storage of BIOS
extensions, and the Reference Diskette and Option Diskette files.  This area of
disk is not visible to the operating system, making the disk size appear 3MB
smaller than the stated capacity.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(5w) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(5x) The one available "slot" is dedicated to the optional 9600/2400 bps
FAX/Modem, or the optional Serial adapter (providing a second serial port).
They are mutually exclusive.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(5y) The optional external PS/2 Communications Cartridge I, P/N 06G0850, offers
one additional  half-length adapter slot for 3270 and 5250 emulation cards,
network adapters, and others.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(5z) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(6a) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(6b) The keyboard has 84 keys permanently attached, but includes a 17-key
external keypad that connects to the mouse port, bringing the total number of
keys to 101.  This keypad may be left behind in order to save space and weight.
If a mouse or Trackpoint is to be used with the L40, it plugs into the back of
the keypad, if the keypad is attached; or directly into the mouse port if the
keypad is not used.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(6c) 2MB reserved for EMS memory; only 16MB directly addressable by the
processor.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(6d) The Model L40 requires the use of special lower-power SIMMS, including
79F3987 (2MB), 79F3988 (4MB), and 79F3989 (8MB).


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(6e) The optional 387SX math coprocessor is available from Intel Corp; IBM no
longer markets math coprocessors.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(6f) The ten LCD indicators include:  Battery Status, Hard Disk/Diskette in
Use, Speaker in Use, Data/FAX Modem Connection, Suspend/Resume Mode,
Temperature/ Problem Indicator, Humidity Problem Indicator, Number Lock, Caps
Lock, and Scroll Lock.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(6g) A switch allows the choice of Automatic/Manual speed mode.  Software lets
the user designate which speed to assign to each mode.  The slower the setting,
the longer the battery will last.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(6h) Due to supply constraints of the IBM 212MB drive, Conners 208MB drives
were used interchangeably with the IBM drive in this model.  All other
specifications are identical to the 212MB IBM drive.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(6i) This is the hardware limit.  The choice of operating system used may limit
the number of usable serial and parallel ports to a lesser number.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(6j) PS/2 Model 80 systems with serial numbers below those shown below come
with 2MB of RAM standard.  Those with higher serial numbers come with 4MB of
RAM standard.

8580-081:  23B0000 and above
8580-161:  23WK000 and above
8580-321:  9250000 and above


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(6k) PS/2 Model 90/95 systems with serial numbers below the ranges shown below
come with 4MB of RAM standard.  Those with serial numbers within the ranges
below come with 8MB of RAM already installed.

 PS/2 Model 90                                PS/2 Model 95
 8590-0J5:  23TXD00-23XPV99                   8595-0J9:  23FPMAZ-23GMBWY
 8590-0J9:  23PAAA0-23RLTG9                   8595-0JD:  23GMBWZ-23KVWXK
 8590-0KD:  23RLTH0-23TYKP9                   8595-0KD:  23KVMXL-23NBNXX


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(6l) Installing the "487SX math coprocessor" involves replacing the 486SX
processor without coprocessor with a 486DX processor with coprocessor.  The
"487SX" is not actually a separate chip, and there is no special socket for it.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(6m) The L40 uses special low-power CMOS SIMMs.  These SIMMs cannot be used in
other systems; nor can "normal" DRAM SIMMs be used in the L40.  The SIMMs are
"keyed" differently to prevent inadvertent use of the wrong SIMMs in the wrong
system.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(6n) The network adapter, included, uses one of the adapter slots.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(6o) 40 lbs, if weight is distributed to all 4 sides of cabinet.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(6p) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(6q) One half-height drive and one slimline.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(6r) 5.25" drive bays can hold either 3.5" or 5.25" drives.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(6s) Two half-height 5.25" bays.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(6t) Two half-height (or one full-height) bays.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(6u) When operating in 16-bit VGA mode, the XGA controller does not act as a
bus master.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(6v) DOS 5.0 or higher is required if using the optional 2.88MB diskette drive.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(6w) The 122-key keyboard contains all the keys of a 101-key keyboard, plus
additional keys to make it equivalent to a 3270 terminal keyboard.  The system
BIOS contains support for the additional keys.  This keyboard cannot be used
with older systems, those without built-in BIOS support.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(6x) Optional vertical-mounting stand available; see PS Marketing Assistant for
part number.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(6y) Vertical-mounting stand included.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(6z) One slimline and two half-height (or one full-height) 5.25" bays.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(7a) Page Memory Logic is not utilized by the Intel 386SX/386SL, or IBM
386SLC/486SLC/486SLC2 processors.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(7b) Using one 4MB SIMM.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(7c) The first 2MB of RAM is soldered to the system board.  Other memory is
added via the appropriate memory upgrade kits.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(7d) The Token-Ring or Ethernet network adapter takes up one adapter slot.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(7e) Using two 2MB SIMMs.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(7f) PS/2 Model 55 LS systems with serial numbers below those shown below come
with 2MB of RAM standard.  Those with serial numbers within the ranges below
come with 4MB of RAM already installed.

8555--LE0:  23YNWC0-23ZGRF9
8555--LT0:  23XNKT0-23YGFW9


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(7g) The IBM 486SLC3 processor is up to 40% faster than the 486SLC2 running at
the same clock speed.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(7h) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(7i) Requires an optional installation kit.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(7j) LogicLock security exceeds the stringent U.S. government C2-level security
requirement.  LogicLock suspends system operations if physical tampering is
attempted.  In addition, tamper-evident covers and cable protectors, and an
optional electronically controlled eject-lockable 2.88MB diskette drive prevent
physical tampering.  LogicLock also provides multiple levels of password
security, including privileged access, power-on password, and keyboard password
(via the operating system).


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(7k) SIMMs slower than 70ns cannot be used on the system board; they require
the 2-8MB 80386 Memory Expansion Option (P/N 6450605).


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(7l) Advanced Power Management (APM) drivers for DOS/Windows, and OS/2, provide
power management capabilities for monitors that conform to the VESA Display
Power Management Signaling (DPMS) Specification, including the IBM 632x and
952x series.  These drivers may be downloaded from the IBM PC Company BBS
(919-517-0001), the IBM OS/2 BBS, CompuServe, and other sources.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(7m) The medialess Model 53 and 56 LS systems do not include a Reference
Diskette (which contains configuration and diagnostic software, as well as
SurePath BIOS updates).  To obtain this diskette, order the 53 or 56 LS LAN
Administrator's Package, or download the diskette from the IBM PC Company BBS
(919-517-0001).  Part numbers for the Administrator's Package are as follows:

  82G3752 - 53 LS 486SLC2 models
  10G3315 - 56 LS 386SX/SLC Ethernet models
  10G3314 - 56 LS 386SX/SLC Token-RIng models
  42G0357 - 56 LS 486SLC3 models


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(7n) Requires the optional Audiovation MIDI Pac, which includes a MIDI breakout
cable, and PowerTracks--a MIDI sequencer application that provides the ability
to compose and record songs with multiple tracks and instrument sounds.  The
breakout cable provides a second joystick port for the Audiovation adapter as
well.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(7o) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(7p) IBM SurePath BIOS is upgradeable via "flash" EPROM.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(7q) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(7r) Using two 4MB daughtercards.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(7s) Using two 2MB daughtercards.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(7t) The controller is integrated into the motherboard and therefore does not
require an adapter slot for an internal 5.25" diskette drive.  However an
external 5.25" drive requires adapter P/N 6451007, F/C 1007.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(7u) Three operating environments are pre-installed on the fixed disk drive
(DOS 5.0, Windows 3.1 and OS/2 2.00.1 with MMPM/2 1.0) pre-configured with
device drivers. The PS/2 Ultimedia installation program provides the ability to
install, remove, and re-install operating environments. A system guide is
provided for easy navigation of the multiple CDROMs.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(7v) This new 3.5", 1" high drive features security and enhanced usability when
used with the 9576 and 9577 systems and OS/2 2.00.1 Operating System. These
features include: software controlled eject of the diskette and the ability to
lock a diskette into or out of the drive.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(7w) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(7x) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(7y) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(7z) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(8a) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(8b) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(8c) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(8d) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(8e) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(8f) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(8g) The IBM PS/2 Cached Processor Option, P/N 6451231, is a card containing an
IBM 386SLC chip that plugs into the 387SX math coprocessor socket on the system
board.  IBM's 20MHz 386SLC is approximately 88% faster than Intel's 20MHz
386SX; 7% faster than a 25MHz Intel 386DX, due largely to the 8K internal
cache, and optimized instruction set.  The 386SLC-based Cached Processor Option
may be replaced with an IBM 486SLC2 Option.  The PS/2 Cached Processor Option
includes a socket for the installation of a 387SX, if needed.  The original
386SX processor is not removable.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(8h) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(8i) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(8j) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(8k) Built into the IBM 386SLC processor.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(8l) One half-height bay.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(8m) There is no IBM 387SLC chip.  The optional Intel 387SX math coprocessor is
used.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(8n) In addition to the VGA+ chip on the system board, a 16-bit XGA board in
installed in one of the adapter slots.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(8o) One slot is taken by the XGA adapter, and the other by the M-Audio Capture
and Playback Adapter.  Both adapters are removable if additional slots are
needed.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(8p) Select-A-Keyboard offers a choice of one of these keyboards.  The
TrackPoint II keyboards (available on some systems) cost extra; if ordered, no
mouse is provided.  The 102/106/122-key keyboards (available on some systems)
are available under a Special Bid arrangement.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(8q) No memory adapters are required, or allowed.  All RAM must be installed on
the system board.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(8r) The CD-ROM supplied with this system includes OS/2 2.00.1, plus various
multimedia sample programs and demos, and Windows Multimedia Extensions.  In
addition, DOS 5.00.1 and Windows 3.0 are supplied in shrink-wrapped packages.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(8s) This option is no longer sold by IBM; but some dealers may still have it
in stock.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(8t) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(8u) The built-in diskette drive controller supports up to 3 devices.  The A:
bay contains a 1.44MB drive.  The other devices may be composed of two of the
following: another 1.44MB drive, a 2.88MB drive, an internal 1.2MB diskette
drive, or an Internal Tape Backup Unit.  For a 4th device, the 360K diskette
drive adapter (P/N 6450244) may be used to attach an external 360K diskette
drive (P/N 4869001) in addition to the previously mentioned diskette and tape
drives.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(8v) Installation of the external 360K diskette drive (4869001) requires both
of the following:  the 360K diskette drive adapter (P/N 6450244) and the 5.25"
External Diskette Drive Adapter Cable, P/N 6451124 (F/C 1124).


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(8w) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(8x) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(8y) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(8z) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(9a) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(9b) The built-in diskette drive controller supports up to 3 devices.  The A:
bay contains a 2.88MB drive.  The other devices may be composed of two of the
following: another 2.88MB or 1.44MB drive, an internal 1.2MB diskette drive, or
an Internal Tape Backup Unit (or the newer DualStor Internal Tape Backup Unit).
For a 4th device, the 1.2MB diskette drive adapter (P/N 6451007) may be used to
attach an external 360K or 1.2MB diskette drive (P/N 4869001/4869002) in
addition to the previously mentioned diskette and tape drives.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(9c) Due to BIOS enhancements for performance in the Models 35/40 that the
IBMCACHE.SYS driver does not support, it is not included on the Starter
diskette.  Use the cache driver provided with DOS/Windows or OS/2 instead.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(9d) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(9e) This model requires the use of special Integrated Circuit (IC) DRAM cards,
including 07G1419 (2MB), 07G1420 (4MB), and 07G1421 (8MB).


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(9f) The optional external PS/2 Communications Cartridge II, P/N 07G3970,
offers one additional  half-length adapter slot for 3270 and 5250 emulation
cards, network adapters, and others.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(9g) The keyboard has 84 keys permanently attached, but an optional 17-key
external keypad connects to the mouse port, bringing the total number of keys
to 101.  This keypad may be left behind in order to save space and weight.  If
a mouse is to be used with the PS/2 Models N51, CL57, or ThinkPad 700/720/750
series, it plugs into the back of the keypad, if the keypad is attached; or
directly into the mouse port if the keypad is not used.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(9h) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(9i) This number is an average for all users.  The actual length of time a
battery charge will last is dependent on a number of factors, and will differ
from user to user.  These factors include the amount of memory installed; the
amount of hard disk activity; how the timeout settings for the LCD, hard disk
drive and sleep mode are set; the ambient temperature; and others.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(9j) The Model N51 requires the use of special lower-power SIMMS, including
07G1826 (2MB), 07G18276 (4MB), and 07G1828 (8MB).


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(9k) The optional external PS/2 Communications Cartridge, P/N 07G2580, offers
one additional  half-length adapter slot for 3270 and 5250 emulation cards,
network adapters, and others.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(9l) IBM's 16MHz 386SLC processor is up to 80% faster than a 16MHz Intel 386SX
chip, due largely to the 8K internal cache.  This makes it equivalent in
performance to Intel's 25MHz 386SL processor.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(9m) Systems are ISO 9241-3 capable when used with an ISO-capable monitor and
an ISO-capable operating system, such as IBM DOS 5.0 or higher, or OS/2 2.1 or
higher.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(9n) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(9o) The LCD indicators include:  Battery Status 1, Battery ID 1, Battery
Status 2, Battery ID 2, Hard Disk Drive in Use, Diskette Drive in Use, NumLock,
CapsLock, Scroll Lock, Suspend Mode, and Carrier Detect.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(9p) The LCD indicators include:  Battery Status, Battery Charging, Hard Disk
Drive in Use, Diskette Drive in Use, NumLock, CapsLock, Scroll Lock, and
Suspend Mode.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(9q) This system reserves a 1MB disk partition for the storage of BIOS
extensions, and the Reference Diskette and Option Diskette files.  This area of
disk is not visible to the operating system, making the disk size appear 1MB
smaller than the stated capacity.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(9r) 80ns SIMMS may be used in this system, and the system will automatically
adjust to the slower speed memory. However wait states will be inserted,
reducing overall system performance.  For optimal performance in this system,
use only 70ns memory.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(9s) A second internal diskette drive and an internal hard disk drive are
mutually exclusive.  There are only two internal drive bays.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(9t) ??????????????


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(9u) Using two 4MB SIMMs.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(9v) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(9w) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(9x) AVAILABLE


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(9y) The IBM 486SLC2 Processor Upgrade, P/N 32G3606, is a card that plugs into
the 387SX math coprocessor socket on the system board.  The IBM 486SLC2
processor runs internally at twice the speed of the system (for example,
40/20MHz), producing performance faster than a 25MHz 486DX, due to the 16K
internal cache, and optimized instruction set.  The performance of IBM's
40/20MHz 486SLC2 is up to 271% better than a 20MHz Intel 386SX, up to 99%
faster than IBM's 20MHz 386SLC, up to 53% faster than a 20MHz Intel 486SX, and
up to 20% faster than Intel's 25MHz 486SX processor.


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________
(9z) The following PS/2 Model 56/57/M57 SLC system models with serial numbers
below the ranges shown come with 4MB of RAM standard.  Those with serial
numbers within the ranges shown come with 8MB of RAM already installed.  Other
models still ship with 4MB standard.

8556-059: 23MGZ51-23MTD99
8557-059: 23CCTBH-23DLBMD
8557-05F: (All ship with 8MB)
8557-259: 23LDYNC-23LMPRB


ΓòÉΓòÉΓòÉ <hidden>  ΓòÉΓòÉΓòÉ

______________________________

 16-Bit Fast SCSI Adapter
  SCSI-1/SCSI-2                            SCSI-2
   SCSI-2 Features Supported               Fast
  Internal/External Devices Supported      Both
  Number of SCSI devices supported         7
  Device Types Supported
   SCSI Disk Drives                        Yes
   SCSI Tape Drives                        Yes
   SCSI CD-ROM Drives                      Yes
   SCSI Rewritable Optical Drives          Yes


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 Audiovation Adapter/A Specifications
  Digital Signal Processor (DSP)                   Yes (IBM Mwave)
  Bus Master                                       Yes
   Processor MIPS                                  17
   Superscalar MIPS (at 3 IPC)                     51
  SoundBlaster Compatible                          Yes
  IBM M-ACPA Compatible                            Yes
  Joystick Port                                    Yes
   Second Joystick Port                            Optional (7n)
  Speech Recognition                               Yes (Software included)
  Speech Synthesis                                 Yes (Software included)
  Audio Compression Supported                      4:1
  CD Quality Stereo Playback                       Yes
  CD Audio Input from CD-ROM Drive                 Yes
  Wavetable Recording/Playback                     Yes (Software included)
  Sampling Rates                                   Up to 44.1KHz
  MIDI Playback                                    Yes (Software included)
  MIDI In/Out/Pass-thru Support                    Optional (7n)
  3-D Sound Effects                                Optional (7o)
  Microphone Included                              Yes


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 Internal CD-ROM I Drive Specifications
  Controller Type                                  SCSI
  CD-ROM/XA-Compatible                             Yes
  Disc Types Supported
   CD-DA (Digital Audio)                           Yes
   CD-I (Interactive)                              No
   CD-ROM                                          Yes
   Photo-CD                                        No
  Storage Capacity/Disk                            600MB
  Single/Double-Speed                              Single
  Sustained Transfer Rate/Second                   150K
  Maximum (Burst) Transfer Rate/Second             1.5MB
  Seek Time                                        330ms
  Buffer Size                                      64K
  Analog Stereo Headphone Jack                     Yes
  Analog Audio Out Connector                       Yes
  Volume Control                                   Yes
  Electronic Eject                                 No
  MPC-Compliant                                    MPC-1


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 Enhanced Internal CD-ROM II Drive Specifications
  Controller Type                                  SCSI
  CD-ROM/XA-Compatible                             Yes
  Disc Types Supported
   CD-DA (Digital Audio)                           Yes
   CD-I (Interactive)                              No
   CD-ROM                                          Yes
   Photo-CD                                        Yes
    Single/Multisession                            Multisession
  Storage Capacity/Disk                            600MB
  Single/Double-Speed                              Double
  Sustained Transfer Rate/Second                   327K
  Maximum (Burst) Transfer Rate/Second             4.0MB
  Seek Time                                        205ms
  Buffer Size                                      256K
  Analog Stereo Headphone Jack                     Yes
  Analog Audio Out Connector                       Yes
  Volume Control                                   Yes
  Electronic Eject                                 Yes
  MPC-Compliant                                    MPC-2


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 TMC-850IBM External SCSI Adapter
  SCSI-1/SCSI-2                            SCSI-1
  8/16-Bit Adapter                         8-bit
  Internal/External Devices Supported      External only
  Number of SCSI devices supported         5
  Device Types Supported
   SCSI Disk Drives                        Yes
   SCSI CD-ROM Drives                      Yes
   SCSI Rewritable Optical Drives          Yes


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 TMC-850IBM Internal SCSI Adapter
  SCSI-1/SCSI-2                            SCSI-1
  8/16-Bit Adapter                         8-bit
  Internal/External Devices Supported      Internal only
  Number of SCSI devices supported         5
  Device Types Supported
   SCSI Disk Drives                        Yes
   SCSI CD-ROM Drives                      Yes
   SCSI Rewritable Optical Drives          Yes