IBM RS/6000 7043 43P Series, Service Manual

Page: 132 / 273

Memory PD Bits
The following table expands the firmware error code 25Cyyrrr on page 4-9, 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 MAP 0030 in the
Diagnostics Information for Multiple Bus Systems unless otherwise indicated in the
tables.
Firmware Checkpoints
The following is a list of checkpoints issued by the firmware during initialization.
PD Value Size Speed (nsecs) Parity/ECC
38 128MB 10 ECC
3A 128MB 8 ECC
48 64MB 10 ECC
4A 64MB 8 ECC
68 256MB 10 ECC
6A 256MB 8 ECC
Table 4-3 (Page 1 of 13). Firmware Checkpoints
Checkpoint
(hex)
Description Repair Action
E100 Reserved/Unused See “Unresolved problems” on page 4-27
E101 Video enabled,
extended memory
test (Quick restart
path) See “Unresolved problems” on page 4-27
E102 Firmware restart
with cfg'd parms
(Quick restart path) See “Unresolved problems” on page 4-27
E103 Set memory refresh
(composite img) See “Unresolved problems” on page 4-27
E104 Set memory refresh
(recovery block) See “Unresolved problems” on page 4-27
E105 Transfer control to
O.S. (normal boot) See “Boot Problems/Concerns” on page 4-28
E108 Run recovery block
base memory (test
2k), set stack See “Unresolved problems” on page 4-27
4-14
7043 43P Series Service Guide