Table 3. Firmware Error Codes. (continued)
Error Code Description Action / Possible Failing FRU
401120B2 A low +12 voltage was detected
1. If a location code is displayed with
this error code, replace the part at
that location.
2. Replace the power supplies
one-at-a-time.
Location: P3-V1
Location: P3-V2
Location: P3-V3
3. Replace the system board.
Location: P1
(See note 3 on page 115.)
401120C2 A low -12 voltage was detected
1. If a location code is displayed with
this error code, replace the part at
that location.
2. Replace the power supplies
one-at-a-time.
Location: P3-V1
Location: P3-V2
Location: P3-V3
3. Replace the system board.
Location: P1
(See note 3 on page 115.)
40200001 An unknown cooling problem detected.
1. Check system unit fans.
Locations: F1, F2, F3, F4
2. Replace the processor cards.
Location: P1-C1
Location: P1-C2
40200021 A processor card temperature warning
detected.
1. Check system unit fans.
Locations: F1, F2, F3, F4
2. Replace the processor cards.
Location: P1-C1
Location: P1-C2
40200023 A critical processor card temperature
condition detected.
1. Check system unit fans.
Locations: F1, F2, F3, F4
2. Replace the processor cards.
Location: P1-C1
Location: P1-C2
40200031 A system board temperature warning
detected.
1. Check system unit fans.
Locations: F1, F2, F3, F4
2. Replace the system board.
Location: P1
(See note 3 on page 115.)
156 Service Guide
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