IBM pSeries 670 Service Manual page 423

Error Code Description
1023 xx21 Fourth I/O subsystem moves to second rack
(with IBF), DCA-2
1023 xx23 Seeprom fault on DCA-2 in fourth I/O subsystem
(with IBF) in secondary rack
1023 xx25 Fourth I/O subsystem moves to second rack
(with IBF), DCA-2, cable fault
1023 xx27 Problem with fan 2 and fan 4 in fourth I/O
subsystem (with IBF, moves to second rack)
1023 xx31 Fourth I/O subsystem (with IBF) in secondary
rack I/O subsystem backplane 1 fault
1023 xx33 Seeprom fault on I/O subsystem backplane 1 in
fourth I/O subsystem (with IBF) in secondary
rack
1023 xx41 Fourth I/O subsystem (with IBF) in secondary
rack I/O subsystem backplane 2 fault
1023 xx43 Seeprom fault on I/O subsystem backplane 2 in
fourth I/O subsystem (with IBF) in secondary
rack
1023 xx51 Fourth I/O subsystem (with IBF) in secondary
rack DASD backplane 1 fault
1023 xx53 Seeprom fault on DASD backplane 1 in fourth
I/O subsystem (with IBF) in secondary rack
1023 xx61 Fourth I/O subsystem (with IBF) in secondary
rack DASD backplane 2 fault
1023 xx63 Seeprom fault on DASD backplane 2 in fourth
I/O subsystem (with IBF) in secondary rack
1023 xx71 Fourth I/O subsystem (with IBF) in secondary
rack DASD backplane 3 fault
1023 xx73 Seeprom fault on DASD backplane 3 in fourth
I/O subsystem (with IBF) in secondary rack
1023 xx81 Fourth I/O subsystem (with IBF) in secondary
rack DASD backplane 4 fault
1023 xx83 Seeprom fault on DASD backplane 4 in fourth
I/O subsystem (with IBF) in secondary rack
1024 1B17 Problem with fan 1 in third I/O subsystem in
second rack (I/O subsystem 7)
1024 1B27 Problem with fan 2 in third I/O subsystem in
second rack (I/O subsystem 7)
Action/
Possible Failing FRU
U2.9-V2
U2.9-V2
Go to "MAP 1520: Power" on page 144 with
these pairs of location codes:
1. U2.9-V2/Q1 and U1.35-P2-X2/Q6
2. U2.9-V2/Q2 and U1.35-P1-X2/Q6
1. DCA-2
Location U2.9–V2
2. Fan 2,
Location U2.9–F2
3. Fan 4,
Location U2.9–F4
U2.9-P1
U2.9-P1
U2.9-P2
U2.9-P2
U2.9-P3
U2.9-P3
U2.9-P4
U2.9-P4
U2.9-P5
U2.9-P5
U2.9-P6
U2.9-P6
1. DCA-1
Location: U2.13-V1
2. Fan 1
Location: U2.13-F1
1. DCA-2
Location: U2.13-V2
2. Fan 2
Location: U2.13-F2
Chapter 5. Error Code to FRU Index
403