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v Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v See the ″Parts Listing″ section in the Hardware Maintenance Manual 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 CPU n OverTemp has
transitioned to non-recoverable.
(n = microprocessor number)
Error A sensor has changed to
Nonrecoverable state.
1. Make sure that the fans are
operating, that there are no
obstructions to the airflow,
that the air baffle is 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)
A diagnostic interrupt has occurred
on system %1.
(%1 = CIM_ComputerSystem.
ElementName)
Error An operator information
panel NMI/diagnostic
interrupt has occurred.
If the NMI button on the system
board has not been pressed, do
the following:
1. Make sure that the NMI
button is not pressed.
2. Replace the operator
information panel cable.
3. Replace the operator
information panel.
A bus timeout has occurred on
system %1.
(%1 = CIM_ComputerSystem.
ElementName)
Error A bus timeout has occurred.
1. Remove the adapter from the
PCI slot that is indicated by a
lit LED.
2. Replace the extender card.
3. Remove all PCI adapters.
4. (Trained service technicians
only) Replace the system
board.
A software NMI has occurred on
system %1.
(%1 = CIM_ComputerSystem.
ElementName)
Error A software NMI has
occurred.
1. Check the device driver.
2. Reinstall the device driver.
Chapter 8. Troubleshooting 157