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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 Chapter 3, “Parts listing, TD100 Types 6398, 6399, 6419, 6429, 4203, and 4206,” on page 25 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

A microprocessor LED is lit

during POST, indicating that the

startup (boot) microprocessor is

not working correctly.

1. Make sure that the server supports all the microprocessors and that the

microprocessors match in speed and cache size.

2. Reseat the following components:

a. (Trained service technician only) Microprocessor

b. VRM

3. (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.

4. 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

5. (Trained service technician only) If there are multiple error codes or LEDs that

indicate a microprocessor error, reverse the locations of the microprocessors or

with a microprocessor socket.

Monitor or video 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. 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 3, “Parts listing, TD100 Types 6398, 6399, 6419, 6429, 4203, and 4206,” on page 25 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) System board

178 ThinkServer TD100 and TD100x: Hardware Maintenance Manual

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Lenovo TD100 Bedienungsanleitung Seite 196

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