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AST RESEARCH, INC. TECHNICAL BULLETIN #0758 05-27-92
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AST PREMIUM EXEC AND THE WESTERN DIGITAL 60MB DRIVE
PROBLEM: The following symptoms occur in Premium Exec systems which
have a Western Digital WDAH-260-00 model drive installed:
- An "ERROR INITIALIZING HARD DRIVE" occurs upon booting the
system.
- The hard drive will spin down on its own.
- The drive cannot be accessed for 25-30 seconds after
returning from SUSPEND operation.
AFFECTED
SYSTEMS: All Premium Exec systems.
CAUSE: This is a firmware problem with the Western Digital drives.
The version of the firmware can be identified by the "CCC"
(Customer Configuration Code) which is part of the
manufacturer's configuration information displayed on the
label. Drives with a CCC of "D6" will exhibit the above
symptoms. To view the label, the keyboard must be removed.
CAUTION:
This operation should be performed by a qualified service
technician. It is strongly recommended that it be completed
by an AST Authorized Service Center. In no case will AST
Research, Inc. be liable for damage to the system and its
components or loss of data caused by improper modification.
SOLUTION: The hard drive should be replaced with a drive having a CCC
code designated "B2". The model number for this drive is
WDAH260-02.