Undetermined Problems
If an error code is present, go to “Index of Symptoms, Messages, Error Codes, or Beeps” on page 74. If no error code is present, continue with this check. Check the power supply voltages (see “Power Supply Cable Connector Specifications" on page 129). If the voltages are correct, return here and continue with the following steps:
1.Power off the system unit.
2.Perform the following checks, one by one, until you have isolated the problem FRU (refer to "Parts/Test Point Locations" on page 122 for locations):
qLoad default settings in setup.
qCheck all system board jumper positions and switch settings.
qCheck all adapter card jumper positions.
qCheck all device jumper positions.
qCheck all cables and connectors for proper installation.
If the jumpers, switch, and voltage settings are correct, return here and continue:
3. Remove or disconnect the following, one at a time:
q
qExternal devices
qAny adapters
qModem card, if installed
q
qDiskette drive
qHard disk drive
qDIMM
qProcessor
qSystem board
4.Power on the system unit.
5.Repeat steps 1 through 4 until you find the failed device or adapter.
6.If software related, reload software from service partition.
If the symptom changes, go to “Index of Symptoms, Messages, Error Codes, or Beeps” on page 74 or to the check procedure for the last item tested.
Replace the last item tested if the system operates normally after removing the last item.
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