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 See Chapter 4, “Parts listing, Type 7377 server,” on page 125 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.
v Go to the IBM support Web site at http://www.ibm.com/systems/support/ to check for technical
information, hints, tips, and new device drivers or to submit a request for information.
Symptom Action
The server goes directly to the
POST Event Viewer when
turned on.
1. Correct any errors that are indicated by the LEDs on the front panel.
2. Make sure that the server supports all the microprocessors and that the
microprocessors match in speed and cache size. To compare the
microprocessor information, run the Setup utility and select System
Information, then select System Summary , and then Processor Details.
3. (Trained service technician only) Reseat the microprocessors.
4. (Trained service technician only) Remove microprocessor 2 and restart the
server.
5. (Trained service technician only) Replace the following components, in the
order shown, restarting the server each time:
v Microprocessors
v System board
Monitor or video problems
Some IBM monitors have their own self-tests. If you suspect a problem with your
monitor, see the documentation that comes with the monitor for instructions for
testing and adjusting the monitor. If you cannot diagnose the problem, call for
service.
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, Type 7377 server,” on page 125 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.
v Go to the IBM support Web site at http://www.ibm.com/systems/support/ to check for technical
information, hints, tips, and new device drivers or to submit a request for information.
Symptom Action
Testing the monitor.
1. Make sure that the monitor cables are firmly connected.
2. Try using the other video port.
3. Try using a different monitor on the server, or try testing the monitor on a
different server.
4. Run the diagnostic programs (see “IBM Dynamic System Analysis” on page
59). If the monitor passes the diagnostic programs, the problem might be a
video device driver.
5. (Trained service technician only) Replace the system board
Note: Make sure the technician refreshes the VPD.
Chapter 3. Diagnostics 47
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