Undetermined Problems

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:

If you suspect a software mismatch is causing failures (solid or intermittent), be sure to see 'Resolving Resource Conflicts'.
A corrupt CMOS can cause undetermined problems.

Check the LEDs on all the power supplies. If the LEDs indicate the power supplies are working correctly, return here and do the following:

Power-off the computer.
Be sure the system is cabled correctly.
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-Module Kits (Minimum requirement = 1 bank of 64 MB DIMMs)
- Secondary microprocessor VRM, if installed
Note:
Minimum operating requirements are:
Power Supply
Power AC Inlet Box
System Board (Use switch 7 on the switch
block on the system board to bypass the power switch button. Also, verify that the J10 connector is installed correctly.)
Memory-Module Kits (Minimum requirement = 1 bank of 64 MB DIMMs)
Power-on the computer. If the problem remains, suspect the following FRUs in the order listed:
- Power Supply
- Processor
- System Board

NOTE: 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 then the processor.

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