Lenovo ThinkServer TD200x Bedienungsanleitung PDF herunterladen (Seite 156)

Solving undetermined problems

If the diagnostic tests did not diagnose the failure or if the server is inoperative, use

the information in this section.

If you suspect that a software problem is causing failures (continuous or

intermittent), see “Software problems” on page 138.

Damaged data in CMOS memory or damaged firmware can cause undetermined

problems. To reset the CMOS data, use the password switch 2 (SW4) to override

the power-on password and clear the CMOS memory; see “System-board switches

and jumpers” on page 27.

Check the LEDs on all the power supplies (see “Power-supply LEDs” on page 33).

If the LEDs indicate that the power supplies are working correctly, do the following:

1. Turn off the server.

2. Make sure that the server is cabled correctly.

3. Remove or disconnect the following devices, one at a time, until you find the

failure. Turn on the server and reconfigure it each time.

v Any external devices.

v Surge-suppressor device (on the server).

v Modem, printer, mouse, and non-Lenovo devices.

v Each adapter.

v Hard disk drives.

v Memory modules. The minimum configuration requirement is 1 GB DIMM per

microprocessor (2 GB in a two-microprocessor configuration).

The following minimum configuration is required for the server to start:

v One microprocessor

v One 1 GB DIMM

v One power supply

v Power cord

v ServeRAID SAS adapter

v System board assembly

4. Turn on the server. If the problem remains, suspect the following components in

the following order:

a. Power supply

b. Power-supply cage

c. Memory

d. Microprocessor

e. System board

If the problem is solved when you remove an adapter from the server but the

problem recurs when you reinstall the same adapter, suspect the adapter; if the

problem recurs when you replace the adapter with a different one, suspect the

system board or extender card.

If you suspect a networking problem and the server passes all the system tests,

suspect a network cabling problem that is external to the server.

Event logs

Error codes and messages are displayed in the following types of event logs:

v POST event log: This log contains the three most recent error codes and

messages that were generated during POST. You can view the POST event log

through the Setup Utility.

140 ThinkServer TD200x Types 3719, 3821, 3822, and 3823: Installation and User Guide

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