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Computer shows power light upon plugging in, but no boot, noise, or any startup

Discussion in 'Hardware' started by enltguy, May 9, 2011.

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  1. enltguy

    enltguy Thread Starter

    Joined:
    May 9, 2011
    Messages:
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    When I plug a power cord in, the power light instantly (almost) lights up, whether or not I've pressed anything to try powering it up. When I DO press the power button, nothing changes. Nothing sounds like it's running at all. Someone suggested moving the RAM around, so I placed it in a different slot, but that didn't change anything. This was a frankensteined computer that was given to me, so I can't even really provide much in the way of specs. It's an IBM ThinkCentre S50 (shell anyway), but appears to be loaded with a 40GB Seagate HDD, Intel P4, 512MB RAM, and an AcBel power supply. In case this matters, and I don't know enough to know or what I would do about it, but there are a few open plugs for power. The motherboard has a couple plugs running into it, but one still open. The HDD has two empty plugs, but one plugged into it. I would have no idea how to play around with the power supply. Not to say that's the problem. Thanks for any help.
     
  2. pip22

    pip22

    Joined:
    Nov 21, 2004
    Messages:
    2,536
    It could be the power supply (officially called a "PSU" or Power Supply Unit) that's faulty and needs repalcing, but you were right not to go messing with it as even a faulty one can give you a nasty shock from the power that's stored up inside it. I've worked on fixing & upgrading computers for many years, yet even I draw the line at changing a PSU. I let my local PC shop do it for safety reasons, plus I believe in supporting little independant PC shops whenever possible.
     
  3. win2kpro

    win2kpro

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    11,670
    You should have either a 20 or 24 pin main connector and a 4 pin (2x2) auxiliary processor connector (2 yellow and 2 black wires) that plugs in near the processor. Are both these lines plugged in to the motherboard?
     
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