Lenovo TD100 Bedienungsanleitung PDF herunterladen (Seite 233)

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 184.

Damaged data in CMOS memory or damaged BIOS code can cause undetermined

problems. To reset the CMOS data, use the clear CMOS switch to clear the CMOS

memory; see “System-board switches” on page 14. If you suspect that the BIOS

code is damaged, see “Recovering from a BIOS update failure” on page 203.

Check the LEDs on all the power supplies. If the LEDs indicate that the power

supplies are working correctly, complete the following steps:

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 two 512 MB

DIMM on the system board.

v Service processor.

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

v One microprocessor

v Two 512 MB DIMM on the system board

v One power supply

v Power cord

v Power backplane

v ServeRAID SAS adapter

v System board

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

the following order:

a. Memory module

b. Microprocessor

c. Power backplane

d. 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.

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.

Chapter 5. Diagnostics 215

1 2 ... 228 229 230 231 232 233 234 235 236 237 238 ... 253 254

Kommentare zu diesen Handbüchern

Keine Kommentare

Lenovo TD100 Bedienungsanleitung Seite 233

Kommentare zu diesen Handbüchern