IBM Aptiva Series, Обслуживание оборудования

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Check Procedures 2-45
Undetermined Problem
If an error code is present, go to “Index of Symptoms, Messages, Error Codes,
or Beeps” on page 2-7. If no error code is present, continue with this check.
Check the power supply voltages (see “Power Supply” on page 2-32). 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 settings, and voltages are correct, return here
and continue:
3. Remove or disconnect the following, one at a time:
•
Non-IBM devices
•
External devices
•
Audio-I/O card
•
Any adapters
•
Modem card, if installed
•
Riser card
•
CD-ROM drive
•
Diskette drive
•
Hard disk drive
•
SIMM
•
CPU
•
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 2-7 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.