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 67.
Damaged data in CMOS memory or damaged server firmware can cause
undetermined problems. To reset the CMOS data, use the clear CMOS jumber to
clear the CMOS memory; see “System-board jumpers and switches” on page 20. If
you suspect that the server firmware is damaged, see “Recovering the server
firmware” on page 124.
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-IBM devices.
v Each adapter.
v Hard disk drives.
v Memory modules. The minimum configuration requirement is one 1 GB DIMM
on the system board.
The following minimum configuration is required for the server to start:
v One microprocessor
v One 1 GB DIMM on the system board
v One power supply
v Power cord
v ServeRAID SAS/SATA 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. 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.
130 System x3200 M3 Types 7327 and 7328: Problem Determination and Service Guide
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