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Desk top powers on than goes off

Discussion in 'Hardware' started by jimmyv65, Jan 28, 2011.

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  1. jimmyv65

    jimmyv65 Thread Starter

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    Jan 28, 2011
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    I have a desktop with windows XP. One day it would not start when I hit the power button. I had to turn off the main switch behind the tower and waited a few seconds before turning it on again. When I hit the power button it turned on (fans, lights etc.) and ran for a few seconds and then shut off. I hit the power button again and nothing. I had to shut off the main power switch on the back again. I waited a few seconds and turned it back on and hit the power button and the same thing. I have to keep doing the same thing until it just keeps running. Sometimes it will run for a minute or longer before it shuts off and I have to reset the main power switch. Once it starts up and stays on everything works fine. If I do a restart while it's running that works fine too. Can anyone give me an idea on how to repair this problem?
     
  2. Lozzy-loz

    Lozzy-loz

    Joined:
    Feb 5, 2010
    Messages:
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    Check the power supply and the cpu heat sink for a build up of fluff and clean as necessary.
     
  3. jimmyv65

    jimmyv65 Thread Starter

    Joined:
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    Messages:
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    Thank you for the quick reply. I have already cleaned out all the inner components. I do it regularly as it tends to collect a lot of dust. Anyway I'll take all the advice I can. Thank you again.
     
  4. dustyjay

    dustyjay

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    Messages:
    12,661
    First Name:
    Jay
    It sounds like a flaky power supply problem. Other than OS what are you computer specs? If you can also include the Power Supply Make and Model.
     
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