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1991-05-17
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Western Digital is a registered trademark of Western Digital
Corporation; IBM PC, AT and XT are registered trademarks of the
International Business Machines Corporation; MS DOS, OS2 and PC DOS
are registered trademarks of Microsoft Corporation.
WD1003A-WA2
Software Installation
...WARNING..................WARNING......................WARNING...
THE FOLLOWING LOW-LEVEL FORMAT PROCEDURE
WILL DESTROY ALL DATA ON YOUR HARD DRIVE
BACK-UP THE DATA ON YOUR DRIVE BEFORE
CONTINUING WITH LOW LEVEL FORMAT ROUTINE
The format instructions that you follow are simple procedures to tell
the computer that you have either one or two Winchester disk drives
installed and prepares your operating system to recognize the Western
Digital controller.
You will need to know the parameters of your hard disk drives. As a
convenience to you, we have included a list of the most common hard
disk drives and their parameters. To access this list, return to the
STORAGE CONTROLLERS menu. If your drive is not listed, contact your
drive manufacturer or consult your drive manual to determine drive
type and parameters.
1. Insert your system Diagnostic Diskette (or equivalent).
2. Turn on power.
3. Boot diagnostic and select setup option.
4. Set clock, etc.
CAUTION
Avoid system damage by consulting your
Technical Reference manual to ensure that your
drive type is supported by your host BIOS drive
tables. Not all AT-compatibles share the same
drive tables as IBM.
5. Select proper drive type. (Consult your Technical Reference
Manual.)
NOTE
Step 6 requires execution of low level formatting. Use of the IBM
Advanced Diagnostic (or similar program for IBM-compatibles) is
necessary since these controllers contain no on-board Basic
Input/Output System (BIOS) ROM.
6. Insert your Advanced Diagnostic diskette and execute low level
Format. Follow instructions in your reference manual.
7. Insert System Diagnostic Diskette (or equivalent) after the
system finishes the low level format.
8. Load and execute the FDISK (to partition your drive) and FORMAT
(high level format) programs. Follow instructions in your reference
manual.
Troubleshooting
Problem: 1790 Disk 0 Error.
Cause: No low level format on hard disk. Wrong drive type
selected. Not enough drive power. Bad cables. Improper
drive selection or termination.
Problem: Drive does not partition.
Cause: Check drive types. Note that drive types for the AT
and AT-compatibles differ.
Problem: "Error Reading Fixed Disk" appears when booting from
hard drive.
Cause: DOS partition not active.
Problem: Winchester activity LED continuously lit.
Cause: No problem. Drive LED selected for latched mode.
Problem: For systems with two drives, both Winchester activity
LEDs light at the same time.
Cause: Improper drive selection or termination. Inspect the
drive cables. If the controller cable is straight, then
set drive C's drive select switches for drive select 1 and
drive D's drive select switches for drive select 2. If
the controller cable has a twist, set both drives' select
switches for drive select 2. Consult your drive manuals
or dealer for drive switch settings. Finally, under no
circumstances, use twisted floppy cables for the
Winchester drive. Floppy and Winchyester drive interface
connections differ significantly.
Problem: Slow and inefficient operation.
Cause: The biggest culprit for this problem is an incorrect
interleave factor. Therefore, some experimentation with
the interleave factor may be necessary. (Refer to the
format instructions for setting interleave factor).
Interleave factors are very dependent on the host
operating system and application.
Problem: Not getting full capacity from drive.
Cause: You may have an RLL type drive. Consult your drive
manual. The WD1003-WA2 is designed for use with MFM
type drives only. DO NOT USE WITH RLL DRIVES.