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Solved: Computer turns on for 3 seconds

Discussion in 'Hardware' started by Flowdrip, Jul 29, 2007.

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  1. Flowdrip

    Flowdrip Thread Starter

    Joined:
    Dec 15, 2005
    Messages:
    186
    I have a Koolance PC2 601 watercooled case that just started this bit of weirdness: When I push the power on button on the case front, the computer starts up and runs for 3 seconds then turns off. If I continually push the power button at 2 second intervals, it stays on. Any clue as to what may be causing this to happen? Nothing has been added to this computer for at least 6 months. I'm perplexed:confused:
     
  2. Triple6

    Triple6 Moderator

    Joined:
    Dec 26, 2002
    Messages:
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    First Name:
    Rob
    When you say it stays on, does it just stay on or does it actually work properly and boot up?

    Could be that the front case power or reset buttons are sticking, what happens if you disconnect both of them and just short the two power pins on the motherboard with a screw driver?

    It could also be a loose CPU heatsink, if its come loose or broken off then the CPU could be overheating and causing a shutdown. If its not booting but just staying on it could also be a faulty power supply.
     
  3. Flowdrip

    Flowdrip Thread Starter

    Joined:
    Dec 15, 2005
    Messages:
    186
    Bad wording on my part. It does not boot up or show the POST screen. Fans spin, lights on mobo work and HD's spin. I found the fault. I replaced the 24 pin ATX power cable and all is well. The #4 or # 6 wire must be at fault. If you short out those two, the Koolance pump starts to recirculate the water, which mine wasn't doing. Thanks for the reply.
     
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