IBM 8669 - Eserver xSeries 342 Hardware Maintenance Manual page 113

3. Remove or disconnect the following (one at a time) until you find the failure
(power-on the computer and reconfigure each time).
Any external devices
Surge suppressor device (on the computer)
Modem, printer, mouse, or non-IBM devices
Each adapter
Drives
Memory-Modules (Minimum requirement = 256 MB (2 banks of 128 MB
DIMMs))
Note: Minimum operating requirements are:
a. 1 Power Supply
b. Power Backplane
c. System Board
d. 1 Microprocessor and VRM
e. 1 Terminator Card
f. Memory Module (with a minimum of two 128 MB DIMMs)
4. Power-on the computer. If the problem remains, suspect the following FRUs in
the order listed:
Power Supply
Power Backplane
System Board
Notes:
1. If the problem goes away when you remove an adapter from the system, and
replacing that adapter does not correct the problem, suspect the System Board.
2. If you suspect a networking problem and all the system tests pass, suspect a
network cabling problem external to the system.
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Symptom-to-FRU index