Acer Veriton 2800 Service Manual

Also see for Aspire L300: User guide User manual

Contents

Chapter 4 63Undetermined ProblemsIf an error message is present, go to “POST Error Messages List”. If you did not receive anymessages, if the symptom is listed in “or “Error Symptoms List”. If you still cannot solve theproblem, continue with this check:1. Check the power supply voltages. If the voltages 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 atime:10. Non-Acer devicesT External devicesT Any adapter card (modem card, LAN card or video card, if installed)T CD/DVD-ROM driveT Diskette driveT Hard disk driveT DIMMT ProcessorT Main board11. Power on the system unit.12. Repeat steps 2 through 5 until you find the failing device or adapter.