IBM RS6000 - 7026 - H70, Service Manual

Page: 98 / 358

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. 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 &hdref refid=1540.
unless otherwise indicated in the tables.
Table 3-2. Memory Module PD bits
PD
value Size
Clock Cycle
(nsecs)
Parity/
ECC
58 32MB 10 ECC
38 128MB 10 ECC
Note: Memory modules must be installed in pairs.
3-26
Service Guide