Table 3. Firmware Error Codes. (continued)
Error Code Description Action / Possible Failing FRU
4B2xxxC8 A generic processor-detected checkstop
has occurred.
1. Try to reboot the system into
online diagnostic to preserve the
AIX error log. Run diagnostics in
problem determination mode to
determine the cause of the failure.
If a new SRN or error code is
generated, follow the actions for
that code.
2. Try to boot AIX diagnostics from
CD-ROM.
a. If the boot is successful, run
advanced diagnostics and
follow the actions for any SRN
or error code that is generated.
If the same error code is
generated, go to “MAP 1540:
Minimum Configuration” on
page 63.
b. If AIX standalone diagnostics
do not boot, follow the actions
for any new SRN or error code
that is generated. If the same
error code is generated, go to
“MAP 1540: Minimum
Configuration” on page 63.
4BA00000 The system support controller detects the
service processor, but cannot establish
communication. The system halts.
1. Power off the system unit:
a. Unplug the power cord.
b. Plug in the power cord and
power on the system unit.
2. Replace the system board.
Location: P1
(See note 3 on page 115.)
4BA00001 The system support controller cannot
detect the service processor.
Replace the system board.
Location: P1
(See note 3 on page 115.)
4BA0000A Processor card deconfigured
1. Possible BIST failure:
a. Power off the system unit.
b. Unplug the power cord.
c. Plug in the power cord and
power on the system unit.
2. Replace the processor card.
Location: P1-C1
Location: P1-C2
172 Service Guide
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