H003263 - ECA004, REPLACEMENT 8MB MEMORY IN 8640
 
 PURPOSE:
 This ECA provides replacement of affected 8MB memory SIMMs in
 PC SERVER 300 and 320 systems (machine type 8640).
 
 This ECA will expire 5-31-97.
 
 FEATURES:
 Type,                  Machines Affected
 Model,   With          and/or Feature/Device     B/M to be    Service  System
 Stage    B/M           Description               Installed    Hours    Hours
 
 8640     B/M0000000    PC SERVER 300 & 320       B/M0000000   00.4     00.3
                        MFG. BEFORE MARCH 96
                        (MFG DATE: 603)
 
 
 PHYSICAL CHECK:
 
 Systems manufactured after March 01, 1996 (MFG DATE: 603 and
 later on the rear serial number label) were not shipped with
 any of the affected memory.  Unless additional 8MB memory
 options were added to the system, these systems are not at risk.
 The date-of-manufacture is printed on the original IBM system
 carton and on the rear system serial number label.
 
 If the system was manufactured prior to March 01, 1996, the
 8MB memory SIMMs must be physically inspected to determine
 eligibility for replacement under this ECA.  Affected SIMMs are
 8MB parity FRU p/n73G3234 (Option p/n92G7203) with PRODUCT CODE
 V6DU, V6DN, V6EF, AND V6EL.  SIMMs with any other Product Code
 are not affected.
 
 The Product Code is located on the SIMM barcode label, or
 on the top left corner of the SIMM card.
 
           SAMPLE BARCODE LABEL:
       _______________________________
      | B126C6E1PAP  74G1188  TOR 601 |
      | 8mb 2MX36  P  70NS 5.0V  V6DU <------PRODUCT CODE
      | IBM FRU:73G3234  OPT:92G7203  |
      |     ASSEMBLED IN CANADA       |
       -------------------------------
 
        SAMPLE MEMORY SIMM CARD:
    ----------------------------------------------------------
   | V  ___   ___   ___   ___   ___   ___   ___   ___   ___   |
   | 6 |   | |   | |   | |   | |   | |   | |   | |   | |   |  |
   | D |   | |   | |   | |   | |   | |   | |   | |   | |   |  |
   | U |   | |   | |   | |   | |   | |   | |   | |   | |   |  |
   --   ---   ---   ---   ---   ---   ---   ---   ---   ---   |
     |  ||||||||||||||||||||||||| ||||||||||||||||||||||||||  |
      --------------------------- ----------------------------
 
 PREREQUISITES: NONE
 
 COMPANION: NONE
 
 CONCURRENT: NONE
 
 DETAIL:
 PC SERVER 300 and 320 systems with the affected 8MB memory may
 exhibit memory related problems, such as system hang, trap, or
 failure to boot the operating system completely.  Failures will
 probably be intermittent, and vary depending on how much
 memory is installed.
 
 These memory failures are limited to the 8MB memory SIMMs with
 Product Codes identified above, and only when they are installed
 in a PC SERVER 300 OR 320 system (MicroChannel/PCI or EISA/PCI).
 8MB SIMMs with the above Product Codes are not eligible for ECA
 replacement when installed in other systems.
 
 REPLACE ELIGIBLE MEMORY WITH FRU p/n73G3234.  Although the FRU
 number has not changed, current Option, FRU, and Manufacturing
 stock do not contain affected SIMMs.  DUE TO EXISTING FIELD
 STOCK LEVELS, YOU SHOULD EXAMINE SIMMs BEFORE INSTALLATION
 TO ENSURE THEY ARE NOT AFFECTED.
 
 NOTES:
 IBM/TSS CEs should record all time and parts to Service
 Code 33, D/T8640, ECA004, Other Office 990.
 
 Return all replaced memory via normal UPR procedures.
 
 November 19, 1996