Electrical Short or Overload

Remove non-essential items such as extra controller cards or IDE/ATAPI devices to check for shorts and over-loads. If the system boots correctly, there may be a short or overload associated with one of the components. Replace each of the non-essential items one at a time to isolate which one is causing the problem.

If the problem occurs even after removing the non-essential components, the problem has to be with the system board, power supply, memory, or processor.

Defective Components

Defective components, especially processor and memory, can cause system boot issues.

Swap the memory modules with known good memory. Verify correct operation of the suspected memory in a known working system.

Swap the processor with a known good processor. Verify correct operation of the suspected processor in a known working system.

System Does Not Boot After Configuration Changes

Hardware Changes

If the system does not boot after making changes to hardware or adding new components, verify that the component installed is compatible with the system.

Software Changes

If you recently installed new software or new device drivers, try booting into Safe Mode and uninstall the new software or driver.

If you can now boot normally, there may be a compatibility issue between the new software or driver and some component in your system. Contact the software manufacturer for assistance.

BIOS Changes

Changes to some advanced BIOS settings (such as those found in the "Advanced Menu" on page 24) can cause boot issues. Changes to Advanced BIOS settings should only be made by experienced users.

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Troubleshooting

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