IBM pSeries 670 Service Manual page 694

Error Code Description
4B2A 25E9 Processor subsystem detected fault in 8-way
processor MCM
4B2A 28B0 Processor subsystem and self test detected
fault in I/O subsystem PCI backplane
4B2A 28B1 Processor subsystem and self test detected
fault in I/O subsystem DASD backplane
4B2A 526B Fault detected in 4-way or 8-way CUoD MCM
4B2A 526C Fault detected in 4-way or 8-way CUoD MCM
4B2A 526D Fault detected in 4-way or 8-way CUoD MCM
4B2A 526E Fault detected in 4-way or 8-way CUoD MCM
4B2B 248B Processor subsystem and wire test detected
fault in operator panel
4B2B 258A Processor subsystem detected fault in 4-way
processor MCM
4B2B 25C0 Processor subsystem and wire test detected
fault in system backplane
4B2B 25C1 Processor subsystem and wire test detected
fault in 1.0 GHz clock card
4B2B 25C7 Processor subsystem and wire test detected
fault in 4-way processor MCM
4B2B 25C8 Processor subsystem and wire test detected
fault in 4-way processor MCM
4B2B 25CF Processor subsystem detected fault in 8-way
processor MCM
4B2B 25D3 Processor subsystem and wire test detected
fault in 8-way processor MCM with VPD card
4B2B 25D5 Processor subsystem and wire test detected
fault in 8-way processor MCM with VPD card
(8-, 16-, or 24-way)
4B2B 25D7 Fault in 4-way processor MCM detected
4B2B 25D8 Fault in 4-way processor MCM detected
674 Eserver pSeries 670 Service Guide
Action/
Possible Failing FRU
Go to "MAP 1540: Problem Isolation
Procedures" on page 253 to isolate the failing
component.
I/O subsystem PCI backplane at location
specified in error code
I/O subsystem DASD backplane at location
specified in error code
Go to "MAP 1540: Problem Isolation
Procedures" on page 253 to isolate the failing
component.
Go to "MAP 1540: Problem Isolation
Procedures" on page 253 to isolate the failing
component.
Go to "MAP 1540: Problem Isolation
Procedures" on page 253 to isolate the failing
component.
Go to "MAP 1540: Problem Isolation
Procedures" on page 253 to isolate the failing
component.
Operator panel
Location: U1.17-L1
Go to "MAP 1540: Problem Isolation
Procedures" on page 253 to isolate the failing
component.
System backplane
Location: U1.18-P1
Clock card
Location: U1.18-P1-X5
Go to "MAP 1540: Problem Isolation
Procedures" on page 253 to isolate the failing
component.
Go to "MAP 1540: Problem Isolation
Procedures" on page 253 to isolate the failing
component.
Go to "MAP 1540: Problem Isolation
Procedures" on page 253 to isolate the failing
component.
Go to "MAP 1540: Problem Isolation
Procedures" on page 253 to isolate the failing
component.
Go to "MAP 1540: Problem Isolation
Procedures" on page 253 to isolate the failing
component.
Go to "MAP 1540: Problem Isolation
Procedures" on page 253 to isolate the failing
component.
Go to "MAP 1540: Problem Isolation
Procedures" on page 253 to isolate the failing
component.