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    craiglouis's Avatar
    craiglouis Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Jul 23, 2009, 08:40 PM
    PC keeps turning off
    My brothers PC keeps turning itself off after a few seconds, he cleaned out the dust and changed the psu.. whats the deal?
    seahwk83's Avatar
    seahwk83 Posts: 3,276, Reputation: 212
    Ultra Member
    		  
    #2

    Jul 24, 2009, 07:30 AM

    Are all the fans working?

    This usually would indicate that the processor is over heating
    craiglouis's Avatar
    craiglouis Posts: 2, Reputation: 1
    New Member
    		  
    #3

    Jul 24, 2009, 08:08 AM

    Yea the fans are working,the unit is completely dust free, new more powerful psu...
    seahwk83's Avatar
    seahwk83 Posts: 3,276, Reputation: 212
    Ultra Member
    		  
    #4

    Jul 24, 2009, 08:28 AM

    Did the problem only happen after installing psu?
    whatwhere's Avatar
    whatwhere Posts: 9, Reputation: 1
    New Member
    		  
    #5

    Sep 12, 2009, 02:07 PM

    I would go for a more better cooling fan for the CPU... it's always better to go above the CPU'S GHZ when adding a cooling fan/system.
    For example if the CPU is 3.3 GHZ I would get a cpu cooler that will go up to 4.0 GHZ, though it's easy to install a liquid coolant system as they are more better.
    Scleros's Avatar
    Scleros Posts: 2,165, Reputation: 262
    Hardware Expert
    		  
    #6

    Sep 14, 2009, 06:23 AM
    A bad power switch or motherboard can also lead to this behavior. Processor overheating normally results in a lockup, reboot, or instant processor failure. Recent processors will also throttle their clock rate to avoid overheating in the event of reduced fan/heatsink performance or failure.

    When the computer is booted cold after sitting overnight, how far does the boot process get before the machine shuts off?
    iamarcin's Avatar
    iamarcin Posts: 72, Reputation: 4
    Junior Member
    		  
    #7

    Sep 14, 2009, 07:58 AM

    There might be a temperature readout somewhere in BIOS.
    If you can get that far.
    Hit delete on boot then look around.

    The temperatures should be <60 with no load like in BIOS.

    How knowledgeable are you.
    Does it get to loading windows/OS?
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