Windows 8 and 8.1 Forums


computer wont turn on, no lights, no life

  1. #1


    Southern California
    Posts : 788
    Windows 8.1 Pro with Media Center x64

    computer wont turn on, no lights, no life


    Was troubleshooting a computer that won't start

    Scenario:
    Computer worked perfectly fine, underwent an update, and inexplicably crashed. Trying to turn it on won't so much as hint at a flicker of any light whatsoever on a motherboard, or screen, or even make a sound from a fan, or turn a fan on, etc. Absolutely dead.

    Troubleshooting:
    Tried a brand new PSU to no avail. Disconnected previous one, and connected new one exactly as the previous one had been connected. Flipped the switch in the back of the new PSU to 'On', and tried the 'On' button on the case. No peripherals were attached whatsoever at any time. No joy.

    Under these circumstances, would the problem most likely lie in a tossed-out motherboard, or CPU, and why? I imagine these could be the only two culprits, unless a bad CPU fan could be a candidate? A fun note: this is a refurbished computer (I wonder why those are a bad idea?)

    *Added* It was the windows 8.1 update that the crash happened under (but not necessarily caused by), and the computer is a Gateway DX4870 that had 8 installed already. This should be it: Newegg.com - Refurbished: Gateway DX Series DX4870-UB2B (DT.GEEAA.002) Desktop PC Intel Core i3 3240 (3.40GHz) 6GB DDR3 1TB HDD Capacity Windows 8 64-Bit

    Thanks for any help!
    Last edited by DustSailor; 07 Apr 2014 at 20:31. Reason: Additional Info

      My System SpecsSystem Spec

  2. #2


    Posts : 2,627
    win8.1.1 enterprise


    what kind of update software or hardware ,and some info on the computers specs
      My System SpecsSystem Spec

  3. #3


    Southern California
    Posts : 788
    Windows 8.1 Pro with Media Center x64


    Sure. It was the windows 8.1 update, and the computer is a Gateway DX4870 that had 8 installed already. Intel core i3. This should be it: Newegg.com - Refurbished: Gateway DX Series DX4870-UB2B (DT.GEEAA.002) Desktop PC Intel Core i3 3240 (3.40GHz) 6GB DDR3 1TB HDD Capacity Windows 8 64-Bit. Thanks for the reply

    *Added to first post*
      My System SpecsSystem Spec

  4. #4


    May sound dumb, but have you verified there is power where you have the computer and monitor plugged in? I know several times I accidentally turned off the surge protector while plugging a computer or monitor in and it took me awhile to figure out what I'd done.
      My System SpecsSystem Spec

  5. #5


    Southern California
    Posts : 788
    Windows 8.1 Pro with Media Center x64


    Thanks for the reply Rich. Yes, all situations of attempting to turn on computer had a tested power outlet. Updated specs of computer in posts above.
      My System SpecsSystem Spec

  6. #6


    St. Augustine
    Posts : 388
    windows 8.1 64, LT -Windows 10 Home 64


    This may also sound dumb BUT, could the power switch have failed? These are push-button mechanical switches and can fail. Is it feasible to check to confirm power is getting to the power supply? With the machine totally dead that way it makes me wonder if there could be a fusible link or internal breaker somewhere.
      My System SpecsSystem Spec

  7. #7


    Southern California
    Posts : 788
    Windows 8.1 Pro with Media Center x64


    ^Yes, but I'm not sure where or how to begin. Could be the wires in the case I suppose, but the entire computer cost about 300$, might just go ahead and recommend a new computer.
      My System SpecsSystem Spec

  8. #8


    Posts : 2,627
    win8.1.1 enterprise


    has to a power issue one would think anyway ,I was going to say what gator2013 said ,if you take the side of the case off ,you should be able to follow wires from the case power button to the motherboard ,on the motherboard it would plug into a series of pins that are marked but with very small lettering ,you would have to determine what 2 are for the power[usually marked with PSW]and take a small screwdriver and jump the 2 pins ,the screwdriver becomes the switch
      My System SpecsSystem Spec

  9. #9


    Posts : 902
    Win8.1 Pro, Desktop Mode


    ^That^.
    If it fails after that, it is most likely your power supply. You can buy for cheap power supply testers, that allow you to plug your power supply into it and easily see if there are any issues. I have used mine several times since I bought it to quickly and correctly identify the power supply as the problem.
      My System SpecsSystem Spec

  10. #10


    Posts : 1,720
    Windows 8.1 Pro


    Just a stab in the dark, but what about resetting the CMOS?
      My System SpecsSystem Spec

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computer wont turn on, no lights, no life
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