IBM System x3800 Problem Determination And Service Manual page 99

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 3, "Parts listing, System x3800 Type 8866," on page 107 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.
System-error log message
CPU %d non-critical over temperature warning
CPU %d non-recoverable over temperature fault 1. Make sure that the fans have good airflow and are not
CPU removal detected
CPU X Over Temperature
Ethernet Data Rate modified from <value1> to
<value2> by user <USERID>
Ethernet Duplex setting modified from <value1>
to <value1> by user <USERID>
Ethernet interface <value> by user <USERID>
Ethernet locally administered MAC address
modified from x:x:x:x:x:x
Ethernet MTU setting modified from x to y by
user <USERID>
Fan X Failure (X of 1-8)
Fan X not detected (X of 1-8)
Operator information panel is not plugged in
Action
1. Make sure that the fans have good airflow and are not
obstructed.
2. (Trained service technician only) Reseat the microprocessor
heat sink.
obstructed.
2. (Trained service technician only) Reseat the microprocessor
heat sink.
Informational only; if the message remains:
1. (Trained service technician only) Reseat the microprocessors.
2. Reseat the microprocessor VRMs, if any are present.
1. Check all fans and remove any obstacles from the path of the
airflow.
2. Make sure that the room temperature is within the
recommended range.
3. Make sure that the microprocessor heat sinks are correctly
seated.
Information only
Information only
Information only
Information only
Information only
1. Make sure that nothing is blocking the fan.
2. Check the physical connection and make sure that the fan is
correctly seated.
3. Replace fan X.
1. Make sure that nothing is blocking the fan or power supply.
2. Check the physical connection and make sure that the fan is
correctly seated.
3. Replace fan X.
1. Make sure that the operator information panel cables are
correctly connected (verify LED activity).
2. Replace the operator information panel.
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Chapter 2. Diagnostics