Return to MAIN-Index  Return to SUB-Index    IBM-AUSTRIA - PC-HW-Support    30 Aug 1999

ECA 029 - 8570 - A61/A21 Busmaster



ECA 029 - 8570 - A61/A21 Busmaster

8570 A61 or A21 fails to operate w/ new Busmaster adapter

PURPOSE:
Replace the system board, P/N 15F7657, to correct a compatibility problem with certain Busmaster adapters.

PHYSICAL check:
An 8570 25 MHz 386 system having a system board with a BAR code label of B1HCHxxx or lower printed on it that contains a SCSI hardfile adapter or other Busmaster adapter that has experienced out of box failures.
To check the BAR code label look at the 5th letter from the
left. example B1HC( H )xxxx
|
|
the key letter is located here. "A" through "H" qualifies the system board.
******** NOTE *******
Busmaster adapters usually contain a microprocessor and have the capability of controlling data transfer on the microchannel bus, independently of the system microprocessor. Due to variations in design, visual identification of a Busmaster may be difficult. In these cases referring to the adapter documentation should help determine if the failing adapter is a Busmaster adapter.

DETAIL:
Some 8570 model A61 or A21 systems require a later level system board when operating with some Busmaster adapters. Busmaster adapters that fail to operate properly after being installed correctly require this ECA if they pass diagnostics and meet the requirements of the ECA:'s physical check.

NOTEs:
Current FRU part stock is at the proper level. Order parts through normal parts channels.


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