IBM 7026-H80 - RS/6000 - 256 MB RAM Service Manual page 225

Service guide
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Table 5. Firmware Error Codes. (continued)
Error Code Description
25Cy y001 DIMM is not supported
Action/
Possible Failing FRU
Replace unsupported DIMM(s). Note
that DIMMs are in groups (2, 4, 8, 16
or 32 DIMMs) but you may only
receive an error for a single DIMM.
Verify that all DIMMs in the group
containing the specified DIMM are of
the same type and size.
yy describes the DIMM as follows:
00
Unrecognized/unsupported
DIMM
28
512MB DIMM
38
128MB DIMM
58
32MB DIMM
68
256MB DIMM
78
1GB memory DIMM
Note: Refer to "System Memory" on
page 26 for DIMM configuration rules.
A DIMM must be replaced with a
supported type of DIMM, and all
DIMMs in a group must be of the
same size.
Check the system error logs to
determine the location code
associated with the error code.
Consult the "AIX and Physical
Location Code Reference Tables" on
page 36 to locate the DIMM and the
rest of its group.
Chapter 5. Error Code to FRU Index
207

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