IBM H Series, Installation And Service Manual

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Table 3-1 (Page 10 of 40). Firmware Error Codes.
Error Code Description Action / Possible Failing FRU
25Cyy001 Memory module is not supported Replace unsupported memory module.
Note:
Memory module must be replaced with a
supported type memory module. If an
unsupported memory module is replaced
the same unsupported type, the error does
not go away.
There may be 2 memory module related
memory errors reported to indicate a
memory module pair. One of the 2 indi-
cated memory modules may be good,
when replacing memory replace 1 memory
module at a time, not both.
See “Memory PD Bits” on page 3-42 for
definition of "yy".
25Cyy002 Memory module fails memory test 1. Replace memory module.
2. Replace memory card.
3. Replace the system board.
See “Memory PD Bits” on page 3-42
for definition of "yy".
25Cyy003 PD bits are mis-matched or missing
one memory module 1. Make sure both memory modules in
the pair are the same type.
2. Replace the system board.
See “Memory PD Bits” on page 3-42
for definition of "yy".
25Cyy004 Memory modules are disabled Remove this unused memory module.
25Cyy005 Memory module failed address test. 1. Replace memory module.
2. Replace memory card.
3. Replace the system board.
4. Remove processor card in processor
card connector #2 (if installed) and
see if the problem is resolved. If
problem is resolved replace processor
card. If not, continue.
5. Exchange processor card in processor
card connector #1 with the processor
card removed in step 1 (or replace
processor card if only one processor
card exists) and see if problem is
resolved. If problem is resolved
replace processor card.
See “Memory PD Bits” on page 3-42
for definition of "yy".
Chapter 3. Error Code to FRU Index
3-11