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2-44

Undetermined Problems

If an error code is present, go to “Index of Symptoms, Messages, Error Codes,

or Beeps” on page 2-8. If no error code is present, continue with this check.

Check the power supply voltages (see "Power Supply Cable Connector

Specifications" on page 5-18). 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 5-1 for

locations):

• Check all system board jumper positions and switch settings.

• Check all adapter card jumper positions.

• Check all device jumper positions.

• Check 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:

• Non-IBM devices

• External devices

• Any adapters

• Modem card, if installed

• CD-ROM drive

• Diskette drive

• Hard disk drive

• DIMM

• Processor

• System board

4. Power on the system unit.

5. Repeat steps 1 through 4 until you find the failing device or adapter.

If the symptom changes, go to “Index of Symptoms, Messages, Error Codes,

or Beeps” on page 2-8 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.

IBM Aptiva Hardware Maintenance Guide

Other manuals for IBM Aptiva