nothing happens when i push the power button

  1. #1
    pablo_m123 is offline Newbie

    nothing happens when i push the power button

    its a desktop computer, a few years old but with constantly updated parts, save the motherboard, processor, and graphics card (after my newer one mysteriously conked out). i think the monitor may be dying as well as it has been flickering fairly frequently and occasionally dying for a few minutes at a time; the only reason i'm including this information is in case it has some relevance to the main problem of my dead computer.

    recently it has been hanging at the "you're computer is now shutting down" screen in WinXP, resulting in my manually shutting it down by holding down the power button on the front. when i start up the computer afterwards, it has twice (at least) gone to a black screen rather than going to the colorful "WindowsXP" screen at startup, with no further response to key presses. restarting the computer again worked the other time i remember it happening, but this last time i held down the power button for the second time to turn it off, and when i pushed it again to turn it back on nothing happened.

    i tried pushing the power button and the restart button, holding each or both, and was finally able to get a second or two response (as if it were starting up) before it died again by turning off the power at the power splitter thing and then turning it on again before trying to push the power buttton again.

    there are a crapload of things drawing power from that splitter (including another splitter) but its been like that for years without incident so i dont think that is the cause of the problem. a year ago or less the power supply on the thing died, so we had to replace it, and we've had multiple harddrive and cd burner deaths over the years, but nothing on this magnitude.

    so, my question is, how do i bring this thing back to life?


  2. #2
    jephree is offline ¨*·.¸ «.·°·..·°·.» ¸.·*¨
    Are there status LED's on the case? (green; amber; red) Do they do anything? Do the fans start? Any beeps?

  3. #3
    pablo_m123 is offline Newbie
    there is a single green LED that usually turns on as soon as i push the power button, as well as a noisy fan or two. none of these things make any noise whatsoever. the computer is completely silent and unresponsive.

  4. #4
    jephree is offline ¨*·.¸ «.·°·..·°·.» ¸.·*¨
    I would remove all the conections to the PC.

    USB; Monitor; audio; everything.

    Unplug from the wall or mains.

    While unplugged hold the power button in for a full minute.

    That can be a long time for the finger but you can do it!

    Also check on the back of the tower that the Power Supply switch is on (- rather than o)

    Next plug the computer directly into a wall outlet and try again.

  5. #5
    pablo_m123 is offline Newbie
    Quote Originally Posted by jephree
    I would remove all the conections to the PC.

    USB; Monitor; audio; everything.

    Unplug from the wall or mains.

    While unplugged hold the power button in for a full minute.

    That can be a long time for the finger but you can do it!

    Also check on the back of the tower that the Power Supply switch is on (- rather than o)

    Next plug the computer directly into a wall outlet and try again.
    ok just tried it, and it seemed to be turning on for 1-2 seconds before dying again. this is the same thing that happened when i tried turning the power splitter off and then on again.

  6. #6
    jephree is offline ¨*·.¸ «.·°·..·°·.» ¸.·*¨
    Are you sure that the Power Supply Unit is OK? You can get an inexpensive tester at almost any electronics outlet.

    Otherwise I would go inside and remove everything but CPU; RAM; Power Supply; Graphics card (if none on-board).

    Is there an LED on the motherboard indicating power?

    Another test would be to remove all the RAM and see what happens.

    This should produce beeps if the power stays on..

  7. #7
    pablo_m123 is offline Newbie
    it was the power supply; replaced it and everything works fine now.

  8. #8
    jephree is offline ¨*·.¸ «.·°·..·°·.» ¸.·*¨
    Thanks for the update.

    Let us know if we can help further in the future.

    If you want this thread reopened just PM me.

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