IBM System x3650 M3 4255 Service Manual page 136

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.
An SM BIOS Uncorrectable CPU
complex error for Processor CPU
nStatus has asserted.
(n = microprocessor number)
Sensor CPU nOverTemp has
transitioned to critical from a less
severe state.
(n = microprocessor number)
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IBM System x3650 M3 Types 4255, 7945, and 7949: Problem Determination and Service Guide
Error An SMBIOS uncorrectable CPU
complex error has asserted.
Error A sensor has changed to Critical
state from a less severe state.
1. Check for a UEFI firmware
update.
Important: Some cluster
solutions require specific code
levels or coordinated code
updates. If the device is part
of a cluster solution, verify
that the latest level of code is
supported for the cluster
solution before you update
the code.
2. Make sure that the installed
microprocessors are
compatible with each other
(see "Installing a
microprocessor and heat sink"
on page 240 for information
about microprocessor
requirements).
3. (Trained service technician
only) Reseat microprocessor
n.
4. (Trained service technician
only) Replace microprocessor
n.
(n = microprocessor number)
1. Make sure that the fans are
operating, that there are no
obstructions to the airflow,
that the air baffles are in
place and correctly installed,
and that the server cover is
installed and completely
closed.
2. Make sure that the heat sink
for microprocessor n is
installed correctly.
3. (Trained service technician
only) Replace microprocessor
n.
(n = microprocessor number)