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.
Notes:
- If you suspect a software mismatch is causing
failures (solid or intermittent), be sure to see
Resolving Configuration Conflicts
- A corrupt CMOS can cause undetermined problems.
Check the LEDs on all the power supplies, see
Power Supply LED Errors.
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 128 MB DIMMs)
Note:
Minimum operating requirements are:
- Power Supply
- Power Backplane
- Power AC Inlet Box
- System Board (With pins 2 and 3 of J32 connected together to bypass the power
switch (button). The default is pins 1 and 2.)
- Processor Board (Verify that the J32, J33, and J35 connectors are are installed correctly.)
- Memory-Module Kits (Minimum requirement = 1 bank of 128 MB DIMMs)
- 1 Microprocessor and VRMs
- 3 Terminator Cards
- Power-on the computer. If the problem remains,
suspect the following FRUs in the order listed:
- Power Supply
- Power Backplane
- System Board
- Processor Board
Notes:
- 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 board(s).
- 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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