IBM RS/6000 7043 260, Service Manual

Page: 122 / 322

Memory PD Bits
The following table expands the firmware error code 25Cyyxxx on page 3-9, where
yy is the PD values in the table below and xxx are the last three digits of the error
code. Use these values to identify the type of memory that generated the error.
If you replace FRUs and the problem is still not corrected, go to “MAP 1540:
Minimum Configuration” on page 2-31 unless otherwise indicated in the tables.
Table 3-2. Memory Module PD bits
PD
value Size
Clock Cycle
(nsecs)
Parity/
ECC
28 512MB 10 ECC
2A 512MB 8 ECC
38 128MB 10 ECC
3A 128MB 8 ECC
48 64MB 10 ECC
4A 64MB 8 ECC
58 32MB 10 ECC
5A 32MB 8 ECC
68 256MB 10 ECC
6A 256MB 8 ECC
Note: Memory modules must be installed in pairs.
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Service Guide