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Microprocessor problems
v Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v If an action step is preceded by "(Trained technician only)," that step must be performed only by a Trained
service technician.
v Go to the IBM support website at http://www.ibm.com/supportportal/ to check for technical information,
hints, tips, and new device drivers or to submit a request for information.
Symptom
The server goes directly to the
POST Event Viewer when it is
turned on.
Action
1. Correct any errors that are indicated by the light path diagnostics LEDs (see
"Light path diagnostics" on page 187).
2. Make sure that the server supports all the microprocessors and that the
microprocessors match in speed and cache size. To view the microprocessor
information, run the Setup utility and select System Information → System
Summary → Processor Details.
3. (Trained service technician only) Make sure that microprocessor 1 is seated
correctly.
4. (Trained service technician only) Remove microprocessor 2 and restart the
server.
5. Replace the following components one at a time, in the order shown, restarting
the server each time:
a. (Trained service technician only) Microprocessor
b. (Trained service technician only) System board
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Chapter 3. Diagnostics
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