IBM Aptiva 2174, Техническое обслуживание оборудования

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66
Undetermined Problems
If an error message or error beep is present, go to “Index of Symptoms,
Messages, or Beeps” on page 35. If you did not receive any messages or
beeps, see if the symptom is listed in “Table 2-3 Error Symptoms List” on page
40. If you still cannot solve the problem, continue with this check:
1. Check the power supply voltages (See “Power Supply Connectors and
Voltages” on page 109). If the voltages are correct, return here and continue
with the following steps:
2. Power off the system unit.
3. Perform the following checks, one by one, until you have isolated the
problem FRU (refer to “Parts/Test Point Locations” on page 105 for
locations):
- Load default settings in setup.
- 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.
4. If the jumpers, switch, and voltage settings are correct, continue with the
following steps:
•
Remove or disconnect the following, one at a time:
- Non-IBM devices
- External devices
- Any adapter card (modem card or video card, if installed)
- CD-ROM drive
- Diskette drive
- Hard disk drive
- DIMM
- Processor
- System board
5. Power on the system unit.
6. Repeat steps 2 through 5 until you find the failing device or adapter.
7. If software related, reload software from Recovery CD.