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PC suddenly died on me, won't power on anymore

Discussion in 'Hardware' started by ZotteStef, May 15, 2012.

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  1. ZotteStef

    ZotteStef Thread Starter

    Dec 26, 2006
    During playing Diablo3 my PC all of a sudden shut down. No bieps, no messages, nothing, just black ... shutdown. Because it was this sudden my first reaction was a power outage in the house. As I was about to check the basement I noticed my screen still was powered on, so it couldn't be an outage.

    I tried to turn the PC back on, but pressing the power button didn't do anything.

    I did notice the top of the case was pretty warm (not auch warm) but still pretty warm. It's always been like this ever since I bought the PC.

    I opened the side of the case and didn't really notice any burning smells or anything, but again, the inside of the case was pretty warm.

    Now after a couple of hours the PC still won't power on, so something is probably broke.

    I'm a complete hardware noob, so how do I go about checking what is broken?
    Is it the PSU? Or the motherboard?

    When the PSU is 'on' I can see a green LED light on the motherboard. Is this possible when there is something wrong with the PSU, that the motherboard still gets power?

    I'm willing to make the bet and buy a new PSU (because the current one is an unnamed PSU that was included with the low budget case).

    Is there anything I can do to check components as a newb?
  2. KevzJD


    Oct 19, 2010
    It sounds like your computer has overheated which is why the computer all of a sudden shut down. Try checking to make sure you've got some grey thermo stuff on the CPU.
  3. crjdriver

    crjdriver Moderator

    Jan 2, 2001
    Quickest way to check a pw supply is to swap in a known good unit. Note you do not even have to fully install the test unit; simply connect the atx power, aux power, and video power [if used] hit the pw ON button and see if the board will post. If it does, then shutdown and either fully install the test unit or purchase a new pw supply.

    If it does not post, you will need to swap parts with known good units ie mb, cpu, ram, etc.
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