IBM System x3650 M3 4255 Service Manual page 143

Table 10. Integrated management module error messages (continued)
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, Types 4255, 7945, and 7949 server," on page 157 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.
Sensor VT Fault has transitioned
to non-recoverable.
Sensor Pwr Rail A Fault has
transitioned to non-recoverable.
Sensor Pwr Rail B Fault has
transitioned to non-recoverable.
Error A sensor has changed to
Nonrecoverable state.
Error A sensor has changed to
Nonrecoverable state.
Error A sensor has changed to
Nonrecoverable state.
1. Check the power-supply
LEDs.
2. Follow the actions in
"Power-supply LEDs" on page
69 and "Power problems" on
page 55.
3. Replace the failing power
supply.
4. (Trained service technician
only) Replace the system
board.
1. Turn off the server and
disconnect it from power.
2. Remove the optical drive,
fans, hard disk drives, and
hard disk drive backplane.
3. Reinstall each device, one at
a time, starting the server
each time to isolate the failing
device.
4. Replace the failing device.
5. (Trained service technician
only) Replace the system
board.
1. Turn off the server and
disconnect it from power.
2. Remove the optical drive,
fans, hard disk drives, and
hard disk drive backplane.
3. Reinstall each device, one at
a time, starting the server
each time to isolate the failing
device.
4. Replace the failing device.
5. (Trained service technician
only) Replace the system
board.
Chapter 3. Diagnostics
125