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3.997 bytes |
Service Hints & Tips |
Document ID: MCGN-3HKM39 |
IBM PC330/PC350 - System hang during POST with 256KB L2 cache installed
Applicable to: World-Wide
SYMPTOM:
IBM PC 300 Series 6577 & 6587 systems may exhibit intermittent system hangs during Power On Self Test (POST) with 256kb L2 Cache made for IBM by ISSI installed.
PROBLEM ISOLATION AIDS:
Affected cache modules may be identified by the ISSI brand logo on the cache modules. The IBM FRU part number is 07H1150. The IBM Assembly part numbers and barcode headers for the affected cache modules are:
IBM P/N40H8145 - Barcode header J12TU
J11H4
J121M
IBM P/N40H8582 - Barcode header J12XK
Advanced Diagnostics run without errors.
Remove the 256Kb L2 cache module from the system and attempt to recreate the failure. If the error can be recreated with the cache module removed, this tip does not apply. Utilize normal problem determination procedures to isolate the failing FRU or application.
If the failure cannot be recreated with the 256Kb cache module removed, this tip does apply. Proceed to the "FIX" section of this tip.
FIX:
The cause of the failure is a buildup of debris between the cache module tabs and the contacts on the system board cache socket. Remove the cache from the socket and reseat the module several times to remove the debris and provide a solid connection between the tabs and the contacts. Retest the system.
If the system continues to exhibit the failure after reseating the cache module, replace the cache module FRU P/N07H1150.
All affected ISSI brand cache modules stocked under FRU P/N07H1150 have been purged from FRU inventory, reworked and restocked with a new barcode number. The FRU part number was not changed.
ISSI is a trademark of Integrated Silicon Solution, Inc.
SAS KEYWORDS:
PSVP PSY2 PSVPBRD PSY2BRD
PSVPPART PSY2PART IBMPC LOCKUP
D/T6587 PSY2MEM PSVPMEM PSVPADPT
PSY2ADPT UNCLASSIFIED PSVPERR PSY2ERR
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Search Keywords |
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Hint Category |
Lock-up/Hang, Memory, Retain | |
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Date Created |
30-05-97 | |
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Last Updated |
21-05-98 | |
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Revision Date |
19-05-99 | |
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Brand |
IBM PC | |
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Product Family |
PC 330, PC 350 | |
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Machine Type |
6577, 6587 | |
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Model |
ALL | |
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TypeModel |
6577-ALL | |
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Retain Tip (if applicable) |
H137714 | |
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Reverse Doclinks |