IBM RS/6000 44P 270 Service Manual page 152

Table 3. Firmware Error Codes. (continued)
134
Service Guide
Error Code Description
4B2xxx01 Checkstop - Slot 1 (J6) Fail
4B2xxx02 Checkstop - Slot 2 (J8) Fail
4B2xxx10 Machine Check - 0
Action / Possible Failing FRU
1. Attempt to reboot the system in
service mode to preserve the AIX
error log. If the reboot fails, attempt
to reboot from CD-ROM. If the
reboot is successful, run diagnostics
in problem determination mode to
determine the cause of the failure.
Otherwise, continue.
2. Processor card in slot 1 (J6)
3. System board
4. 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.
Otherwise, continue.
2. Processor card in slot 2 (J8)
3. System board
4. 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.
Otherwise, continue.
2. Remove processor card in slot 2
(J8) (if installed) and see if the
problem is resolved. If problem is
resolved, replace processor card. If
not, continue.
3. Exchange processor card in slot 1
(J6) with processor card removed
from slot 2 (J8) in step 1 (replace
processor card if only one processor
card exists) and see if the problem
is resolved. If problem is resolved,
replace processor card. If not,
continue.
4. Go to "MAP 1540: Minimum
Configuration" on page 50.