computer turns off after 3 seconds

April 18, 2012 at 14:46:24
Specs: Windows 7
On pressing the power switch the leds light up, fan comes on and i hear a click but after three seconds it switches off again.

It does this once on battery power but tries continuously to turn on when on mains power.

Any info on this or possible problems I have would be gratefully appreciated.

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April 18, 2012 at 15:02:21
Remove the battery and try it with adapter.

You know the real meaning of peace only if you have been through the war.

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April 18, 2012 at 15:07:27
You either have a bad motherboard or your fan/heatsink is blocked with dust.

To be sure, get a can of compressed air and blow out dust from both the air intake (usually bottom) and exhaust vent holes (side or rear). If that doesn't resolve the issue, it's likely a bad component on the motherboard.

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