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ATA66 Utility
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Western Digital ATA-66 Disable Utility
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WDATA66.TXT
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1999-04-06
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README - WDATA66
PROGRAM SUMMARY:
This program searches for and verifies the Ultra ATA/66 capability of
specific Western Digital hard drives. If the drive is Ultra ATA/66 capable
you can enable or disable this feature with this utility.
TO RUN THE PROGRAM:
BACK UP DATA:
Before running the program, it is recommended that users back up all data
for all hard drives. The WDATA66 test does not overwrite any data on the
drives and if used properly should not result in data loss, but the regular
backing up of data is always recommended.
STORE THE PROGRAM ON FLOPPY DRIVE:
The program must be run from a floppy drive, so copy the file WDDIAG.EXE
to a formatted bootable floppy diskette in A:.
ENABLING ULTRA ATA/66 CAPABILITY:
All of the following conditions must be met before your system will be
able to utilize Ultra ATA/66:
1. Your host system must support Ultra ATA/66 (Motherboard chipset,
BIOS or add in Controller Card).
2. A 40 Pin, 80 conductor cable must be attached between the host
system and the hard drive.
3. Your operating must be enabled for DMA transfers
4. Your hard drive must support Ultra ATA/66 and this capability must
be enabled.
START THE PROGRAM:
To start the program, type WDATA66 at the DOS prompt, A:\WDATA66.
SELECT A DRIVE:
You can 'Select a Drive' by using the up/down arrow keys to highlight
a specific drive. The utility will tell you if the drives detected are
'capable' of Ultra ATA/66 and if that feature is 'enabled'. Hit enter to
select a drive and then type <y> to enable or disable the feature on
supported drives.
The WDATA66 utility will support and recognize up to 8 hard drives.
Enabling or disabling this feature on a selected drive can take up to
30 seconds. When the changes have been performed, the 'enabled' status
message will change from "yes" to "no" or vice versa. You can select another
drive or hit <F10> to exit the utility.
COMMAND LINE SWITCHES:
The following switches are available for use in an automated type setting. It
is recommended that these switches only be used in an automated manner, as
manually executing the program will help to verify that the proper drive is
being selected for the enable or disable.
wdata66 /? About WDATA66 command line options
wdata66 /dX /e To enable Ultra ATA66 on a selected drive
Where X is the drive number starting at zero (0-7)
wdata66 /dX /o To disable Ultra ATA66 on a selected drive
Where X is the drive number starting at zero (0-7)
NOTE:
In order for the changes to take effect you must cycle power on your computer.
A <ctrl - alt - del> or warm boot/reset WILL NOT make the changes effective.
To cycle power, turn off your computer, wait 30 seconds and then power up.
TO CONTACT WD:
In some cases the user may be requested to contact Western
Digital Technical Support. You may contact Western Digital
Technical Support at www.westerndigital.com or at (949) 932-4900 or
(800) 275-4932 in the U.S., or (31) 20.446.7651 in Europe, or
consult your drive manual for further information. Alternately,
you may contact the OEM or its warranty service provider who can
support your needs.