Undetermined Problems - IBM 867372X Maintenance And Troubleshooting Manual

Note: See "Server" on page 80 to determine which components should be replaced by a field service technician.
Error code/symptom
FFFF or other code not listed

Undetermined problems

You are here because the diagnostic tests did not identify the failure, the Devices
List is incorrect, or the system is inoperative.
Note: A corrupt CMOS can cause undetermined problems.
If power problems are suspected:
1. Turn off the computer.
2. Be sure the system is cabled correctly.
3. Remove or disconnect the following (one at a time) until you find the failure
Note: Minimum operating requirements are:
4. Power-on the computer. If the problem remains, suspect the following FRUs in
Notes:
1. If the problem goes away when you remove an adapter from the system, and
2. If you suspect a networking problem and all the system tests pass, suspect a
(power-on the computer and reconfigure each time).
v Any external devices
v Modem, printer, mouse, or non-IBM devices
v Each adapter
v Drives
v Memory modules (minimum requirement = one 128 MB DIMM)
a. 1 Power Supply
b. System board
c. 1 Microprocessor
d. 1 Terminator card in Slot 2
e. 1 Memory module (minimum of 1 DIMM in slot labeled DIMM 1)
the order listed:
v Power supply
v System board
replacing that adapter does not correct the problem, suspect the system board,
then the power supply.
network cabling problem external to the system.
FRU/action
1. Follow indications at "POST (ISPR) error procedures"
on page 73.
2. Hard disk drive cable.
3. Hard disk drive backplane.
4. Hard disk drive.
5. ServeRAID controller.
Chapter 6. Symptom-to-FRU index
77