IBM B50 - Manual (Page 77)

Memory PD Bits
The following table expands the firmware error code 25Cyyrrr on page 3-9, where
yy is the PD value listed in the following table. 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 0030 in the
Diagnostics Information for Multiple Bus Systems unless otherwise indicated in the
tables.
SRN Bus ID Possible Failing Device and
AIX Location Code Associated FRU
Tablet port/device (01-Q1). system board (see note 3 on
page 2-1, and at the end of
this table).
Note: If a network adapter or the system board is replaced, the network administrator must be
notified so that the client IP addresses used by the server can be changed. In addition, the operating
system configuration of the network controller may need to be changed in order to enable system
startup. Also check to ensure that any client or server that addresses this system is updated.
PD Value Size Speed (nsecs) Parity/ECC
58 34MB 10 ECC
38 128MB 10 ECC
Chapter 3. Error Code to FRU Index 3-13