IBM System x3650 M3 4255 Service Manual page 144

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 Pwr Rail C Fault has
transitioned to non-recoverable.
Sensor Pwr Rail D Fault has
transitioned to non-recoverable.
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IBM System x3650 M3 Types 4255, 7945, and 7949: Problem Determination and Service Guide
Error A sensor has changed to
Nonrecoverable state.
Error A sensor has changed to
Nonrecoverable state.
1. Turn off the server and
disconnect it from power.
2. (Trained service technician
only) Remove the SAS/SATA
RAID riser card, the DIMMs in
connectors 1 through 8, and
the microprocessor in socket
1.
Note: The server will not
start when no microprocessor
is installed in socket 1.
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. (Trained service technician
only) Remove the
microprocessor from socket 1.
Note: The server will not
start when no microprocessor
is installed in socket 1.
3. Reinstall the microprocessor
in socket 1 and restart the
server.
4. (Trained service technician
only) Replace the failing
microprocessor.
5. (Trained service technician
only) Replace the system
board.