MANDATORY REPLACEMENT OF SCSI ADAPTER FRU P/N15F6561

PURPOSE:
TO MAKE AVAILABLE TO THE FIELD A MANDATORY REPLACEMENT SCSI (SMALL COMPUTER SYSTEMS INTERFACE) ADAPTER WITHOUT CACHE MEMORY, OPTION 6451109, FRU P/N85F0002, IN REPLACEMENT FOR OPTION 6451005, FRU P/N15F6561, AS A PRECAUTIONARY MEASURE DUE TO THE POSSIBILITY OF UNDETECTED DATA MODIFICATION IN CERTAIN DATA TRANFER OPERATIONS.

THE PART NUMBERS HAVE CHANGED AS FOLLOWS:

**SCSI ADAPTER WITHOUT CACHE**
OLD P/N	NEW P/N
FRU P/N15F6561 OPTION 6451005	FRU P/N85F0002 OPTION 6451109

PHYSICAL CHECK:
THE SCSI ADAPTER WITHOUT CACHE MEMORY IS IDENTIFIED BY THE IBM FRU PART NUMBER 15F6561 ON THE BOTTOM EDGE OF THE COMPONENT SIDE OF THE ADAPTER.

                                    ____________
   _________________________________|          |___________
   | __________                                           |
   | |________| X5                                        |_
   | __________                                             |
   | |________| X26                                         |
   | __________                                             |
   | |________| X27                                        _|
   | IBM FRU 15F6561 ______________                  _____|
                                  |__________________|

DETAIL:
SCSI ADAPTERS MEETING THE DESCRIPTION IN THE PHYSICAL CHECK MUST BE REPLACED WITH THE CURRENT LEVEL FRU P/N85F0002 AT THE EARLIEST POSSIBLE OPPORTUNITY.

NOTES: ONLY SCSI ADAPTERS MEETING THE PHYSICAL DESCRIPTION ARE ELIGIBLE FOR THIS ECA.

ANY SYSTEMS AFTER THE SERIAL NUMBERS LISTED BELOW WILL HAVE THE NEW LEVEL OF CARD INSTALLED BY MANUFACTURING AND THEREFORE DO NOT REQUIRE THE UPDATE.

8565-061	EU5500C5000
8565-121	EU5500BC000 (CORRECTION,SHOULD BE EV5500BC000)
8580-X21	EX5500MRA00
8580-M21	GT5500LDAA0
8580-A21	EY5500ADAA0
8580-A31	EZ5500FCAA0

SOME SYSTEMS MAY HAVE MULTIPLE SCSI ADAPTERS INSTALLED.ALL SCSI ADAPTERS INSTALLED MUST BE REPLACED WITH THE CURRENT LEVEL FRU ACCORDING TO THESE INSTRUCTIONS.