Acer Aspire M5802 Technical Information PDF herunterladen (Seite 67)

Chapter 4 59

Undetermined Problems

If an error message is present, go to "POST Error Messages List" on page 85. If you did not receive any

messages, if the symptom is listed in "or "Error Symptoms List" on page 87. If you still cannot solve the

problem, continue with this check:

1. Check the power supply voltage. If the voltage are correct 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.

4. Load default settings in setup.

5. Check all main board jumper positions and switch settings.

6. Check all adapter card jumper positions.

7. Check all device jumper positions.

8. Check all cables and connectors for proper installation.

9. If the jumpers, switches and voltage settings are correct, remove or disconnect the following, one at a

time:

10. Non-Acer devices

• External devices

• Any adapter card (modem card, LAN card or video card, if installed)

• CD/DVD-ROM drive

• Diskette drive

• Hard disk drive

• DIMM

• Processor

• Main board

11. Power on the system unit.

12. Repeat steps 2 through 5 until you find the failing device or adapter.

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Acer Aspire M5802 Technical Information Seite 67