Check Procedures 65
Undetermined Problems
If an error code, error message or error beeps is present, go to “Index of
Symptoms, Messages, Error Codes, or Beeps” on page 33. If you did not
receive any messages, error codes, or beeps, see if the symptom is listed in
“Table 2-3 Error Symptoms List” on page 41. 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 138). 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 130 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.
8. If the symptom changes, go to “Index of Symptoms, Messages, Error
Codes, or Beeps” on page 33 or to the check procedure for the last item
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