home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Collection of Tools & Utilities
/
Collection of Tools and Utilities.iso
/
dskut
/
seg_drvs.zip
/
ST11RINS.TXT
< prev
next >
Wrap
Text File
|
1989-03-02
|
9KB
|
261 lines
Installing The ST11R Controller
With A Seagate Disc Drive
I. Introduction
Seagate reserves the right to change, without notice, the specifications
or other information contained in this file.
The ST11R provides an interface between the IBM PC XT* (or compatible
system) and up to two of the listed Seagate ST412 Run Length Limited (RLL
2,7) drives.
*IBM PC XT is a registered trademark of International Business Machines
Corporation.
The ST11R uses RLL encoding at 7.5 megabits/sec. and is intended for
use with drives certified for RLL. Seagate RLL drive models have an
"R" suffix.
Do not use the ST11R with Seagate drives designed for MFM recording at
5.0 megabits/sec.(no "R" suffix). Running this combination will void the
warranty on the drive.
Drives supported by the ST11R controller.
Drive Formatted MB Cylinders R/W Heads
ST138R 32.7 615 4
ST157R 49.1 615 6
ST225R 21.0 667 2
ST238R* 32.7 615 4
ST250R 40.0 667 4
ST277R 65.5 820 6
ST4144R 122.7 1,024 9
*earlier versions of the ST238R did not have the "R" suffix but are RLL
compatible.
Before attempting any installation, read through these instructions and
verify that the system is powered-down.
Once installed, the controller's onboard software will assist you with
the help screens during the required formatting operation.
-If your drive has more than 32 formatted megabytes, or if you want to
create multiple logical drives, you must install device driver software.
See Part III.
Note: This device driver utility is only shipped with drives having greater
than 32 formatted megabytes to Seagate's direct customers requesting it. If
you did not receive the device driver software with your greater than 32
megabyte drive, contact your dealer or distributor.
II. Controller/Drive Installation
1. Remove the top cover from the system. Retain the screws.
2. Configuring the ST11R:
-Remove the controller from the protective covering and pull all the
conductive rubber strips from between the connector pins.
-The BIOS PROM address jumper (four pins located in the middle of the
ST11R), is used to select the desired address. Adding jumpers changes the
address. (Locations A and B are the two pins toward the front of the system
and D and C are the two pins toward the back of the system).
When installing the ST11R in a system that does not contain any other
hard disc controllers, all jumpers should be removed from the BIOS PROM
address jumper. The ST11R is shipped with the correct configuration for
one hard disc controller.
When installing the ST11R in a system containing a Seagate ST01 Host
Adapter, the ST11R must be jumpered at a lower BIOS address than the
STO1.
When installing the ST11R in a system already containing a hard disc
controller, the ST11R must be jumpered at a higher BIOS address than the
other controller. If you are not sure of the other controller's address,
try one of the two higher addresses for the ST11R (i.e. D8000h or
E0000h).
Configuration BIOS address Port Address
No pins shorted C8000h 320h - 323h
(factory setting)
Pins A-B Shorted: D0000h 324h - 327h
Pins C-D Shorted: D8000h 328h - 32Bh
Pins A-B & C-D E0000h 32Ch - 32Fh
Shorted:
III. Configure the Drive:
Examine the cable which connects the controller to the J1 connector on
the drive. In many cases the cable will have connectors at both ends and
a third connector approximately 6 inches from one end. The end with two
connectors is connected to the drive. Check to see if the ribbon cable
is split with a group of 5 wires twisted between the two connectors at the
drive end.
"C" Drive Configuration:
- If you have a twisted cable (as defined above), configure the drive as
drive select 2.
- If you have an untwisted cable, configure the drive as drive select 1.
Note: Drive select 1 is selected by shorting the 2 pins closest to
where the 20 pin connector plugs into the drive. Drive select 2 is one
set of pins over from the Drive select 1 position.
"D" Drive Configuration:
- if you are connecting a second hard disc to the ST11R, configure the
drive as drive select 2.
- If you are installing a single drive, the resistor pack must remain
installed. If you are installing two hard disc drives, remove the
resistor termination pack from the drive that is attached to the middle
connector on the J1 cable. When reinstalling a resistor pack, note that
pin-1 on the pack is denoted by a dot or numeral one. A square pad on
the disc drive board indicates pin-1 at the socket.
- Verify that there is a jumper installed at J8 position 7 on the drive.
There should be only 2 jumpers installed at J8.
4. Attach the Cables:
Note that at all connections, pin-1 on the controller corresponds to pin-1
on the drive. Some cables have a contrasting-color stripe on one edge to
indicate pin-1.
-Connect the J1 connector on the "C" drive to the connector at the end
of the cable. Connect the J1 connector on the "D" drive (if present) to
the middle connector on your cable. (Be sure to remove all the conductive
rubber strips from between the connector pins even if that connector is not
being used.
-Connect the 20-pin connector on Drive "C" to the J2 connector on the
ST11R. Connect the 20-pin connector on drive "D" (if present) to J3 on the
ST11R.
5. Install the controller into a vacant slot on the system motherboard.
6. Mount the Drive:
-Install the drive in the left bay, if possible, as the power supply may
interfere with the routing of the cables. For ease of installation, attach
J1, J2 and the power cable before you slide the drive completely back and
into position.
-Minimum requirements for mounting: 4. 6-32 UNC-2B x 0.31 (5/16) inch
screws. Tighten the screws down evenly to 8 +/-.8 inch-lbs. Overtightening
may cause drive damage.
7. Verify that all connections are correct and replace the system cover.
Go to Part IV for the required formatting operation.
IV. Formatting A Drive With The ST11R
To format a new hard disc, or reformat a drive that was previously
formatted, follow this procedure.
You will need:
-The DOS* diskettes and documentation (use the same version of DOS
throughout the formatting operation).
*DOS is a registered trademark of Microsoft Corporation.
-The defect list that was shipped with the drive. Some drives are
shipped with the defect list fixed to the drive top cover.
1. Load a DOS bootable diskette in Drive A and power-on the system.
2. Once the boot procedure is completed, load the DOS diskette that
contains the DEBUG.COM program (usually found on the "DOS Supplemental
Programs" diskette) and type DEBUG followed by return at the A> prompt.
3. When DEBUG responds with the "-" prompt, type g=c800:5 followed by
return.
Further instructions will appear on your screen.
Note: If you change the BIOS address from the default
setting (see Controller/Drive Installation) you will need
to type a different value in place of C800 (i.e g=D000:5)
4. After initialization is complete you must partition and format your
drive. See your DOS manual for instructions on the FDISK and FORMAT
commands which will perform these functions.
V. Installing Device Driver Software
1. Load the DOS diskette in Drive A and power-on the system.
2. At the "A>" prompt, load the Disk Manager* diskette in