Things You'll Need:
- A broken PC
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Step 1
First if just recently added a new option card or device try removing that to see if it stops rebooting.
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Step 2
Next clean out all your fans in the power supply and the fans inside your case. Use a can of compressed air. A vacuum works but it doesn't do a good job. Check that all your cables and cards are secure while you have the case open. Push down on all connections, they shouldn't move.
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Step 3
Scan your computer for a virus. You can use a free scan tool at http://housecall.trendmicro.com











