IBM x3655 - System - 7985 Service Manual page 186

v Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v See Chapter 4, "Parts listing, System x3655, Type 7985," on page 97 to determine which components are
customer replaceable units (CRU) and which components are field replaceable units (FRU).
v If an action step is preceded by "(Trained service technician only)," that step must be performed only by a
trained service technician.
BMC log message
VRD 1.4V
Assertion 01 (Power unit
failure)
VRD 1.2V
Assertion 00 (Presence
detected)
VRD 1.2V
Assertion 01 (Power unit
failure)
Ambient temperature
Exhaust temperature
Power supply 1 fault
Power supply 2 fault
Fan 1 tach
Fan 2 tach
Fan 3 tach
Fan 4 tach
Fan 5 tach
168
IBM System x3655 Type 7985: Problem Determination and Service Guide
Sensor Sensor
number type Action
2E 08
1. Inspect the SAS power cable.
2. Replace the SAS backplane assembly.
3. (Trained service technician only) Replace the system board.
2F 08 Information only
2F 08
1. (Trained service technician only) Replace the system board.
2. (Trained service technician only) Isolate the failing
3. (Trained service technician only) Replace the microprocessor.
32 01 Make sure that the fans have good airflow and are not obstructed.
33 01 Make sure that the fans have good airflow and are not obstructed.
38 08
1. Reseat power supply 1.
2. Replace power supply 1.
3. (Trained service technician only) Replace the system board.
39 08
1. Reseat power supply 2.
2. Replace power supply 2.
3. (Trained service technician only) Replace the system board.
40 04
1. Reseat fan 1.
2. Replace fan 1.
3. (Trained service technician only) Replace the system board.
41 04
1. Reseat fan 2.
2. Replace fan 2.
3. Replace the front fan board.
4. (Trained service technician only) Replace the system board.
42 04
1. Reseat fan 3.
2. Replace fan 3.
3. Replace the front fan board.
4. (Trained service technician only) Replace the system board.
43 04
1. Reseat fan 4.
2. Replace fan 4.
3. (Trained service technician only) Replace the system board.
44 04
1. Reseat fan 5.
2. Replace fan 5.
3. (Trained service technician only) Replace the system board.
microprocessor.