H136817 - HANGS & TRAP 000E ERRORS WITH 256KB L2 CACHE
 
 
 SYMPTOM:
 IBM PC 300 Series 6577 and 6587 systems may exhibit intermittent
 system hangs, Trap 000E errors in OS/2 WARP, and other memory
 related errors posted by various operating system platforms on
 systems containing a Level 2 cache module made by UMC for IBM.
 
 PROBLEM ISOLATION AIDS:
 UMC cache modules can be identified by the UMC brand logo
 printed on the modules chips.  The barcode label attached to
 the affected cache modules contains a header code of J1111.
 
 The FRU part number is P/N07H1150.  No other brand of level 2
 cache stocked under FRU P/N07H1150 is affected.
 
 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 contaminants 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 contaminants 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 UMC 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.
 
 UMC is a trademark of United Microelectronics Corp.