Filter
Top Products
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 60.
Damaged data in CMOS memory or damaged server rmware can cause undetermined problems. To reset
the CMOS data, use the CMOS jumper to clear the CMOS memory and override the power-on password;
see “System-board switches and jumpers” on page 111
. If you suspect that the server rmware is damaged,
see “Recovering the server rmware” on page 100.
If the power supplies are working correctly, complete the following steps:
Step 1. Turn off the server.
Step 2. Make sure that the server is cabled correctly.
Step 3. Remove or disconnect the following devices, one at a time, until you nd the failure. Turn on the
server and recongure it each time.
• Any external devices.
• Surge-suppressor device (on the server).
• Printer, mouse, and non-Lenovo devices.
• Each adapter.
• Hard disk drives.
• Memory modules. The minimum conguration requirement is 1 GB DIMM in slots 3.
Step 4. Turn on the server. If the problem remains, suspect the following components in the following order:
• Memory module
• Microprocessor
• 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 riser 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.
Problem determination tips
Because of the variety of hardware and software combinations that can encounter, use the following
information to assist you in problem determination. If possible, have this information available when
requesting assistance from Lenovo.
The model number and serial number of the server are located on an ID label 1 on the bezel.
104 Hardware Maintenance Manual