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1997-05-08
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OSINDELL
DELL OPTIPLEX SYSTEM LOCKS UP ON AIC7870.ADD DRIVER WHEN HARD DRIVE
CONTROLLER IS AN ADAPTEC 2940
06/17/96
======================================================================
Dell Optiplex System Locks Up on AIC7870.ADD Driver When Hard Drive
Controller is an Adaptec 2940
======================================================================
Please Read Entire Document for Full Explanation of Procedures
--------------------------------------------------------------
DESCRIPTION
When starting up a Dell Optiplex, using an Adaptec 2940 hard drive
controller, the system locks up on the logo screen. Pressing Alt+F2 at
the white box in the upper-left corner of the screen shows that the
system is locking up on the AIC7870.ADD driver.
RESOLUTION
Dell has provided a AIC7870.ADD driver dated 12/05/95, along with an
OS2LDR file dated 06/27/94, and IBMINT13.I13 dated 06/27/94. The README
file from the diskette for OS/2 is included below, for your
convenience. This file is provided AS IS.
Adaptec 7800 Family Manager for OS/2 2.1X/Warp
==============================================
This diskette contains Adaptec's OS/2 solution for the AIC-7800 Family
of Host Adapters. This includes:
AHA-2910 PCI-to-Fast SCSI (non-bootable)
AHA-2940 PCI-to-Fast SCSI
AHA-2940W PCI-to-Fast and Wide Single-Ended SCSI
AHA-2944W PCI-to-Fast and Wide Differential SCSI
AHA-2940Ultra PCI-to-Wide UltraSCSI
AHA-3940 MultiChannel PCI-to-Fast SCSI
AHA-3940W MultiChannel PCI-to-Fast and Wide SCSI
AIC-7850 Single-Chip PCI-to-Fast SCSI
AIC-7870 Single-Chip PCI-to-Fast and Wide SCSI
AIC-7880 Single-Chip PCI-to-UltraSCSI
The following files on this diskette are required for the installation
of the 7800 Family OS/2 driver:
\os2\aic7870.add
\os2\7870pres.exe
\aic7870.ddp
==================================================================
INSTALLATION INSTRUCTIONS FOR THE OS/2 DRIVER:
==================================================================
1) Installing a New Driver or Updating an Existing Driver for OS/2
2.1X/Warp
---------------------------------------------------------------
a) Open the OS/2 System Folder, then open the System Setup
folder.
b) Double-click on Device Driver Install.
c) Insert the Manager Set floppy in the appropriate drive.
d) Change to the directory where the driver is located,
usually \OS2_3x.
e) When you find the driver (AIC7870.ADD), select INSTALL.
f) After the install finishes, a message will appear to report the
status. An error will be displayed if no host adapters are
found.
You may also install the driver manually. Copy AIC7870.ADD
to C:\OS2. Add a line to your CONFIG.SYS that says
BASEDEV=AIC7870.ADD.
2) First-Time Installation of OS/2 2.1X/Warp From Floppy Diskette
-----------------------------------------------------------------
a) Make backup copies of the Installation Diskette and Disk #1.
b) Using the backup copies of the Installation Diskette and
Disk #1 do the following:
1) Copy OS2LDR from the 7800 Manager Set onto the
Installation Diskette.
2) Copy IBMINT13.I13 from the 7800 Manager Set onto Disk #1.
c) Install OS/2 using the backup diskettes and the remainder
of the standard OS/2 diskettes.
d) When installation has completed, reboot the system.
e) After the system has rebooted, follow the instructions for
installing the driver on a system containing OS/2.
3) First-Time Installation of OS/2 2.1X From CD-ROM
---------------------------------------------------
a) Use diskcopy to make backup copies of all IBM OS/2 and
Adaptec supplied diskettes. Use the backup copies as your
working diskettes.
b) Create an OS/2 bootable diskette with the text editor E.EXE.
This may be required to modify the OS/2 CONFIG.SYS file
during installation.
c) Copy the OS2LDR file from the 7800 Family Manager set
diskette (i.e., \OS2_3x\OS2LDR) onto the OS/2 installation
diskette. This overwrites the existing OS/2 loader on the
diskette.
d) Copy the IBMINT13.I13 driver from the 7800 Family Manager
set diskette (i.e.,\OS2_3x\IBMINT13.I13) onto the OS/2
installation diskette #1. This overwrites any existing
version of the driver included on diskette #1.
e) Copy the AIC7870.ADD driver from the 7800 Family Manager
set diskette (i.e., \OS2_3x\AIC7870.ADD) onto the OS/2
installation diskette #1. This overwrites any existing
version of the driver included on diskette #1.
f) Modify the CONFIG.SYS file on diskette #1 to include the
following line:
BASEDEV=AIC7870.ADD /PCIHW
g) Run the OS/2 installation program; follow the instructions
in your OS/2 documentation.
h) At the end of the installation process, follow the onscreen
instructions to remove the last OS/2 distribution diskette
and reboot the computer. If the computer fails to boot up,
and locks up while displaying the OS/2 logo screen, insert
the bootable diskette created in step b. Boot the computer
from this diskette, and use the text editor to again modify
the OS/2 CONFIG.SYS file on the hard drive to add the
/PCIHW switch to the BASEDEV=AIC7870.ADD line as shown in
step f. OS/2 should then boot normally from the hard disk.
i) After the computer has restarted, OS/2 displays a screen.
You have the option to view online information while the
OS/2 desktop is building. Allow OS/2 to finish building,
and follow the onscreen instructions to restart the
computer. Again, if the computer fails to boot up, and
locks up while displaying the OS/2 logo screen, repeat the
process specified in step h to correct the problem.
4) First-Time Installation of OS/2 Warp From CD-ROM
---------------------------------------------------
Follow the steps a-d above. After reboot, update the
AIC7870.ADD on the boot drive from DISK #1 (this file will be
overwritten from the CD-ROM).
NOTE: The update files OS2LDR and IBMINT13.I13 are no longer
needed when installing OS/2 Warp.
Additional Notes:
-----------------
OS/2 2.1X currently does not identify PCI systems and handles
them in the same way it would an ISA system. This can cause
several different problems: trouble installing OS/2 2.1X and an
inability to share a single interrupt between multiple PCI
adapters.
IBM is aware of these problems and has open APARs (PJ14230 and
PJ14710) tracking them. They will be fixed in a future release
of OS/2; please check the list of closed APARs accompanying each
future release.
Currently, we have files which can be used as interim fixes for
both these problems:
OS2LDR - A new PCI aware version of the loader. This file can
be used during installation or installed after the
installation of OS/2 has completed.
IBMINT13.I13 - A new PCI aware version of the generic INT 13H
driver that is used during installation from floppy disk.
If you update Disk #1 of the CD-ROM installation to include
OS2LDR, please be aware that this file will be overwritten from
the CD-ROM. It may have to be updated again on the boot drive
when the installation has completed.
The above problems with OS2LDR and IBMINT13.I13 have been fixed
in OS/2 Warp. Therefore, the updates are no longer required.
This driver added a new switch named /PCIHW which enables the
driver to ignore the PCI BIOS and access the PCI hardware
registers directly. This switch could be useful for the users
having problems loading the AIC7870.ADD included with OS/2 Warp,
if their system has a non-compliant system BIOS.
BASEDEV=AIC7870.ADD /PCIHW
Intel Errata #8511 lists known data integrity issues with the
processor cache on the Saturn-1 chipset (82424TX). For this
reason Adaptec recommends that processor cache be disabled via
the CMOS setup to avoid data corruption. For more information,
see Intel Errata #8511. You may get this from Intel's FaxBack
system at 800.628.2283 or 916.356.3105. For more detailed
information see Errata #8512 and 8513.
There is currently no support for installing OS/2 2.0 on a hard
drive attached to an AIC-7870, due to limitations in the
installation procedure. Upgrading to OS/2 2.1 or higher is
recommended.
______________________________________________________________________
IBM disclaims all warranties, whether express or implied, including
without limitation, warranties of fitness and merchantability with
respect to the information in this document. By furnishing this
document, IBM grants no licenses to any related patents or copyrights.
Copyright (c) 1994, 1995 IBM Corporation. Any trademarks and product
or brand names referenced in this document are the property of their
respective owners. Consult your product manuals for complete trademark
information.