Memory Problem Determination Bits
The following table expands the firmware error code
25Cyyxxx
on page 102, 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 50 unless otherwise indicated in the tables.
Table 4. Memory Module PD bits
PD value
Size
Clock Cycle (nsecs)
Parity/ ECC
28
512 MB
10
ECC
2A
512 MB
8
ECC
38
128 MB
10
ECC
3A
128 MB
8
ECC
48
64 MB
10
ECC
4A
64 MB
8
ECC
58
32 MB
10
ECC
5A
32 MB
8
ECC
68
256 MB
10
ECC
6A
256 MB
8
ECC
Note:
Memory modules must be installed in pairs.
142
Service Guide
Summary of Contents for RS/6000 44P Series 270
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