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How To Diagnose PC Hardware Problems

Use the general diagnosis table below as a guide to finding the problem component. We have separate diagnostic pages for each component of the PC.

Symptom

Check
Click on underlined items for further information

When I turn it on...

It makes no sound and there are no lights

When I turn it on...

It just beeps

When I turn it on...

It sounds normal but the screen is blank

  • Make sure the monitor has power
  • Check the connection to the video card
  • Check the Video Card

When I turn it on...

It starts up but never loads the operating system

When I turn it on...

It freezes BEFORE the operating system starts loading

When I turn it on...

It freezes WHILE the operating system is loading

This is probably a software problem not covered in this hardware guide. If you are using Windows, try booting into safe mode by holding down the "F8" key or in some cases the "CONTROL" key.

While it is on...

It makes a screeching or other loud noise

While it is on...

It shuts itself off

  • Check the power features in the BIOS
  • Check the power features in the Windows Control Panel
  • Check the Power Supply
  • Check that all fans are working
  • Check for the accumulation of dust

If the problem occurs in association with a specific hardware component, visit the diagnostic page for that particular part.

Software Issues are not covered in this hardware guide.




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