IBM H Series Installation And Service Manual page 146

Table 3-1 (Page 37 of 40). Firmware Error Codes.
Error Code Description
4B200054 The CPU cards are not compatible
with each other (i.e. one is a
166MHz and the other is a 332MHz)
4B200055 No processor found
4B200056 No CPU card in first slot
4B200057 The CPU cards are not compatible
with each other (i.e. one is a
166MHz and the other is a 332MHz)
4B200058 Compatibility test on processor card
0 failed
4B200059 Compatibility test on processor card
1 failed
4B20000A No configured CPU found
3-38
RS/6000 Enterprise Server Model H Series Installation and Service Guide
Action / Possible Failing FRU
1. Remove cards
2. Verify part numbers
3. Install valid cards
1. If only one processor card is used, it
must be in processor card connector
1.
2. If two processor cards are used:
a. Replace the card in processor
card connector 1 with the card in
processor card connector 2 and
see if the problem is resolved. If
not, proceed to the next step.
b. Replace the system board.
c. Replace the I/O board (See notes
on 3-1.)
1. If only one processor card is used, it
must be in slot #1.
2. If two processor cards are used:
a. Replace the card in slot #1.
b. Replace the system board.
c. Replace the I/O board (See notes
on 3-1.)
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. Verify compatibility of CPU cards.
2. Verify that cards are properly con-
nected.
3. Manually configure a CPU using the
Service Processor menu.