IBM x3755 Installation Guide - Page 57

Microprocessor problems, Monitor problems

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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 See the parts listing in the Problem Determination and Service Guide 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. Symptom Action The server emits a continuous beep during POST, indicating that the startup (boot) microprocessor is not working correctly. 1. Correct any errors that are indicated by the light path diagnostics LEDs (see "Light path diagnostics" on page 52). 2. Make sure that the server supports all the microprocessors and that the microprocessors match in cache size and speed. 3. Reseat the microprocessor/memory cards. 4. If there is no indication of which microprocessor has failed, isolate the error by testing with one microprocessor/memory card at a time. 5. Replace the microprocessor/memory cards one at a time, restarting the server each time. 6. If there are multiple error codes or light path diagnostics LEDs that indicate a microprocessor error, reverse the location of two microprocessor/memory cards to determine whether the error is associated with a microprocessor or with a microprocessor/memory card connector. v If the error is associated with a microprocessor, replace the microprocessor/memory card. v (Trained service technician only) If the error is associated with a microprocessor/memory card connector, replace the I/O board. Monitor 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 the parts listing in the Problem Determination and Service Guide 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. Symptom Action Testing the monitor. 1. Make sure that the monitor cables are firmly connected. 2. Try using a different monitor on the server, or try using the monitor that is being tested on a different server. 3. Run the diagnostic programs. If the monitor passes the diagnostic programs, the problem might be a video device driver. 4. Reseat the Remote Supervisor Adapter II SlimLine (if one is present). 5. Replace the following components one at a time, in the order shown, restarting the server each time: a. Remote Supervisor Adapter II SlimLine (if one is present) b. (Trained service technician only) I/O board Chapter 6. Solving problems 45

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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
See the parts listing in the
Problem Determination and Service Guide
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.
Symptom
Action
The server emits a continuous
beep during POST, indicating
that the startup (boot)
microprocessor is not working
correctly.
1.
Correct any errors that are indicated by the light path diagnostics LEDs (see
“Light path diagnostics” on page 52).
2.
Make sure that the server supports all the microprocessors and that the
microprocessors match in cache size and speed.
3.
Reseat the microprocessor/memory cards.
4.
If there is no indication of which microprocessor has failed, isolate the error by
testing with one microprocessor/memory card at a time.
5.
Replace the microprocessor/memory cards one at a time, restarting the server
each time.
6.
If there are multiple error codes or light path diagnostics LEDs that indicate a
microprocessor error, reverse the location of two microprocessor/memory cards
to determine whether the error is associated with a microprocessor or with a
microprocessor/memory card connector.
v
If the error is associated with a microprocessor, replace the
microprocessor/memory card.
v
(Trained service technician only) If the error is associated with a
microprocessor/memory card connector, replace the I/O board.
Monitor 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 the parts listing in the
Problem Determination and Service Guide
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.
Symptom
Action
Testing the monitor.
1.
Make sure that the monitor cables are firmly connected.
2.
Try using a different monitor on the server, or try using the monitor that is being
tested on a different server.
3.
Run the diagnostic programs. If the monitor passes the diagnostic programs,
the problem might be a video device driver.
4.
Reseat the Remote Supervisor Adapter II SlimLine (if one is present).
5.
Replace the following components one at a time, in the order shown, restarting
the server each time:
a.
Remote Supervisor Adapter II SlimLine (if one is present)
b.
(Trained service technician only) I/O board
Chapter 6. Solving problems
45