IBM x3950 Problem Determination And Service Manual page 100

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, Type 8878 and 8879," on page 109 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 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)
Front Panel is not plugged in
Hard Drive X Fault
Hard drive X removal detected
Hostname set to <value> by user <USERID>
Hot plug card is not plugged in
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IBM System x3950 Type 8878 and System x3950 E Type 8879: Problem Determination and Service Guide
Action
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.
1. Run diagnostics.
2. Reseat the following components:
a. Hard disk drive
b. SAS backplane
3. Replace the components listed in step 2 one at a time, in the
order shown, restarting the server each time.
Reseat hard disk drive X and restart the server.
Information only
1. Make sure that the PCI or PCI-X cables are correctly
connected.
2. Reseat the failing hot-plug cable or adapter.
3. Replace the failing hot-plug cable or adapter.