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PC won't boot... power issue or mobo fault

Discussion in 'Windows BSOD, Freezing, Restarting Help' started by Dave Rook, Jul 9, 2012.

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  1. Dave Rook Newcomer, in training

    my PC did not power up when I pressed power button. The motherboard has lights (leds). turning power on at psu lights up leds. pressing power on pc button fires up the fans for < 1 second and then nothing.fans stop, boot process doesnt proceed but lights remain on board.

    So I buy a new psu (another 800 watt). I unplug all but bare essentials on board. same issue. I then take out the 8 pin adapter (so only the 24 pin is connected) and leds remains on and boot up starts (yipee). I then put the 8 pin in again and it fails in the same manner as before.

    Gigabyte GA EP45 DQ6 mobo
    4 hard drives
    2 dvd
    intel q550 ( I think)
    4 x 2 gb RAM
    800 watt psu

    any idea where fault lies? I assume board.
    Dave Rook, Jul 9, 2012
    #1

  2. Tmagic650 TS Ambassador Posts: 18,759   +62

    ...then go after the motherboard
    Tmagic650, Jul 9, 2012
    #2

  3. c3h899 Newcomer, in training Posts: 39

    Ensure fans are spinning and parts (CPU and Graphics) are not overheating.
    c3h899, Jul 9, 2012
    #3

  4. Tmagic650 TS Ambassador Posts: 18,759   +62

    Any updates on this?
    Tmagic650, Jul 14, 2012
    #4

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