Record number:       H163546
   Device:              D/T6282         Service code:      33
   ECA number:          ECA018          Parts source:      MECH
   EC number:           EC000000        Publish flag:      R
   Mandatory:           N               Hit count:         UHC00000
   Automatic shipment:  N               Success count:     USC0000
   Availability date:   98/04           Publication code:  PC50
   Plant of control:    23              Date created:      O98/04/21
   Tip key:                             Date last altered: A98/05/01
                                        Owning B.U.:       USA

 Abstract:  ECA018, SYSTEM HANGS & TRAP ERRORS WITH 256KB L2 CACHE


 PURPOSE:
 The purpose of this ECA is to correct possible intermit-
 tent system hangs or other error indications in IBM PC300GL
 Series 6272/6282 systems equipped with a 256Kb L2 cache
 memory module.

 FEATURES:
 Type,                  Machines Affected
 Model,   With          and/or Feature/Device     B/M to be    Service  System
 Stage    B/M           Description               Installed    Hours    Hours

 6272     B/M0000000    6272 PC300GL              B/M0000000   00.2     00.2
                        ALL MODELS
 6282     B/M0000000    6282 PC300GL              B/M0000000   00.2     00.2
                        ALL MODELS

 PHYSICAL CHECK:
 System failures that have been reported to IBM as of this
 date have contained the following brand of 256Kb level 2
 cache installed. Note that only a small percentage of
 systems containing this module type have exhibited any
 of the failing conditions:

 1. ISSI brand logo printed on the chips.
 2. Label attached to the rear of the module contains
    "ISSI000210x" (x=any alpha character, typically A or B).
 3. IBM FRU P/N01K1554.

 Note that there are other brands of cache modules used in
 the manufacture of the PC 300GL systems which also contain
 a label indicating IBM FRU P/N01K1554.

 PREREQUISITES:
 None

 COMPANION:
 None

 CONCURRENT:
 None

 DETAIL:
 IBM PC300GL Series 6272/6282 systems with a 256Kb level 2
 cache module installed may intermittently exhibit the
 following error indications:

 1. OS/2 Warp 3.x or 4.x - Trap 000D and 000E errors.
 2. Microsoft WindowsNT 3.xx or 4.x Blue Screen system hang
    condition.
 3. Microsoft Windows95 General Protection Faults (GPF) and
    system hang conditions.
 4. System hangs when running Scandisk or Check Disk (CHKDSK)
    fixed disk utilities.

 Remove the 256Kb L2 cache module from the system and attempt
 to recreate the failing condition. If the problem can be
 recreated with the cache module removed, THIS ECA DOES NOT
 APPLY. Continue with normal problem determination to isolate
 the failing FRU or application.

 If the error cannot be recreated with the cache module
 removed, the 256Kb level 2 cache may be the cause of
 the failing condition.

 NOTES:
 If the system is exhibiting failures consistent with the
 details stated above, replace the L2 cache memory module
 with IBM FRU P/N01K4400.

 As a temporary fix, the system may be operated with the
 256Kb level 2 cache module removed from the system.

 This ECA will expire on December 31, 2001.

 Windows95 and WindowsNT are trademarks of Microsoft Corporation.

 SAS KEYWORDS:
    PSY2               PSY2ERR            PSY2MEM            PSY2PART
    PSVP               PSVPERR            PSVPMEM            PSVPPART
    D/T6272            D/T6282            6272               6282
    01K1554            01K4400            PSY2OEM            PSVPOEM
    INTERNAL ONLY














                              IBM Internal Use Only