IBM RS/6000 44P 270 Service Manual page 144

Table 3. Firmware Error Codes. (continued)
126
Service Guide
Error Code Description
450000D7 System bus internal
hardware/switch error
(checkstop).
450000DA All processor were found
deconfigured, so the service
processor reconfigured the best
system processor that was
available.
450000DB All DIMM pairs were found
deconfigured, so the service
processor reconfigured the best
DIMM pair that was available.
45800000 Memory controller checkstop.
45C00000 Memory checkstop.
(Uncorrectable memory error.)
Action / Possible Failing FRU
1. If a physical location code is
displayed in the operator panel or
by AIX diagnostics, replace the FRU
as indicated by the location code. If
a physical location code is not
available, continue.
2. In the service processor menus, go
to "Read Progress Indicators from
last System Boot". If an arrow is
pointing to a location code replace
the FRU at that location code. If
there is no arrow pointing to a
location code, continue.
3. Go to "MAP 1540: Minimum
Configuration" on page 50.)
This SRN indicates that the
corresponding FRU has been
reconfigured, but it is not a warning or
an error that this FRU is defective. If
problem persists with the reconfigured
processor even after power-on, replace
the defective FRUs as indicated in
service processor error log.
1. This SRN indicates that the
corresponding FRU has been
reconfigured, but it is not a warning
or an error that this FRU is
defective. If problem persists with
the reconfigured DIMM pair even
after power-on, replace it.
2. Replace the all DIMM pairs.
1. Go to "MAP 1540: Minimum
Configuration" on page 50.
2. Replace system board.
3. Replace I/O board. (See note on
page 93.)
1. Attempt to reboot the system in
service mode to preserve the AIX
error log. If the reboot fails, attempt
to reboot from the CD-ROM. If the
reboot is successful, run diagnostics
in problem determination mode to
determine the cause of the failure.
2. Replace system board.
3. Go to "MAP 1540: Minimum
Configuration" on page 50.