Microprocessor Problems; Monitor Problems - Lenovo ThinkServer TD200x Hardware Maintenance Manual

Microprocessor problems

• Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
• See Parts Listing, TD200x Machine Types 3719, 3821, 3822, and 3823 to determine which components are
customer replaceable units (CRU) and which components are field replaceable units (FRU).
• If an action step is preceded by "(Trained service technician only)," that step must be performed only by
a trained service technician.
Symptom
The server emits a continuous
beep during POST, indicating
that the startup (boot)
microprocessor is not working
correctly.

Monitor problems

Some Lenovo 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.
• Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
• See Parts Listing, TD200x Machine Types 3719, 3821, 3822, and 3823 to determine which components are
customer replaceable units (CRU) and which components are field replaceable units (FRU).
• If an action step is preceded by "(Trained service technician only)," that step must be performed only by
a trained service technician.
Symptom
Testing the monitor
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ThinkServer TD200x Hardware Maintenance Manual
Action
1. Correct any errors that are indicated by the EasyLED diagnostics LEDs (see
EasyLED diagnostics).
2. Make sure that the server supports all the microprocessors and that the
microprocessors match in speed and cache size.
3. (Trained service technician only) Reseat microprocessor 1
4. (Trained service technician only) If there is no indication of which microprocessor
has failed, isolate the error by testing with one microprocessor at a time.
5. Replace the following components one at a time, in the order shown, restarting
the server each time:
a. (Trained service technician only) Microprocessor 2
b. VRM 2
c. (Trained service technician only) System board
6. (Trained service technician only) If multiple error codes or EasyLED
diagnostics LEDs indicate a microprocessor error, reverse the locations of
two microprocessors to determine whether the error is associated with a
microprocessor or with a microprocessor socket.
• If the error is associated with a microprocessor, replace the microprocessor.
• If the error is associated with a VRM, replace the VRM.
• If the error is associated with a microprocessor socket, replace the system
board.
Action
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. (Trained service technician only) Replace the system board.