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3.777 bytes |
Service Hints & Tips |
Document ID: SSCT-3JMC7C |
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This document is provided to IBM and our Business Partners to help sell and/or service IBM products. It is not to be distributed beyond that audience or used for any other purpose. |
IBM PS/2 (Type 9576,9556) - Systems with 212MB hard file errors
Applicable to: World-Wide
Symptom:
Excessive soft errors may be experienced when running harddisk diagnostics. Soft errors are read errors which do not exhibit an error code but may show some or all of the following symptoms :-
1. Failure to format
2. Excessive time elapsed when booting to harddisk.
3. Excessive time elapsed during customer applications.
In some cases the harddisk size cannot be recognised by the system.
Problem Isolation Aids:
When running harddisk diagnostics soft errors may occur if power supply interference is present. If the harddisk errors are occurring frequently, the following procedure can be used to determine if power supply interference is causing the problem :-
1. Boot the reference diskette in Drive 'A'.
2. From the main menu select 'Set configuration'.
3. Select 'Set and View SCSI device configuration'.
4. The 'Device Size' may have ??????? if power supply interference is being experienced.
Note:
There can be other conditions which cause the 'Device Size' to contain ??????. Example, Harddisk not spinning. However, if the harddisk is spinning but the 'size' contains ?????? power supply interference should be suspected.
If solid harddisk errors are occurring, extend the harddisk as far from the power supply as possible. If the errors disappear, power supply interference should be suspected.
Fix:
Isolate the DC power cable so it does not touch the harddisk itself. This cable goes from the power supply to the 'P1' connector on the system board. Manufacturing has taken action to correct this problem. This tip will be updated as new information becomes available.
SAS KEYWORDS:
D/T9556 HARDFILE PSY2ERR ERROR
DIAGS PSY2FDSK PWR POWER
DIAG PSY2 PS2 PS/2
D/T9576 SUPPLY 212MB
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Search Keywords |
IBM HardDrives, SCSI | |
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Hint Category |
Retain, Hard Drives | |
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Date Created |
05-04-94 | |
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Last Updated |
24-11-98 | |
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Revision Date |
19-11-99 | |
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Brand |
IBM PC | |
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Product Family |
PS/2 | |
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Machine Type |
9556, 9576 | |
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Model |
Various | |
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TypeModel |
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Retain Tip (if applicable) |
H12911 | |
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Reverse Doclinks |