IBM RS/6000 44P 270 Service Manual page 157

Table 3. Firmware Error Codes. (continued)
Error Code Description
4B200043 Service processor reports JTAG
fail
4B200055 No processor found.
4B200056 No processor found
4B200057 The processor cards are not
compatible with each other.
4B200058 Compatibility test on processor
card 1 (J6) failed.
4B200059 Compatibility test on processor
card 2 (J8) failed.
4BA00000 The system support controller
detects the service processor, but
cannot establish communication.
The system halts.
4BA00001 The system support controller
cannot detect the service
processor.
Action / Possible Failing FRU
1. Remove processor card in slot 2
(J8) (if installed) and see if the
problem is resolved. If not, proceed
to step 2.
2. 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 not, proceed to step
3.
3. Replace system board.
4. Replace I/O board. (See note on
page 93.)
1. If only one processor card is used, it
must be in slot 1 (J6).
2. If two processor cards are being
used, replace the card in slot 1 (J6).
1. If only one processor card is used, it
must be in slot 1 (J6).
2. If two processor cards are being
used, replace the card in slot 1 (J6).
1. Remove cards
2. Verify part numbers
3. Install valid cards.
1. Remove cards
2. Verify part numbers
3. Install valid cards.
1. Remove cards
2. Verify part numbers
3. Install valid cards.
1. Power down the system unit:
a. Unplug the power cord.
b. Plug in the power cord and
power up the system unit.
2. Replace I/O board. (See note 3 on
page 93.)
Replace the I/O board. (See note on
page 93.)
Chapter 5. Error Code to FRU Index
139