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Computer suddenly stopped working- motherboard LEDs and fans on, no startup

Discussion in 'Hardware' started by crabsmack, Apr 21, 2012.

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  1. crabsmack

    crabsmack Thread Starter

    Joined:
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    Messages:
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    So, to give some background, this is my first build, and it has been assembled and working for 4 months now with no problems. I was able to identify the original motherboard as defective the first time I was building it, and the new one has never given me any problems.

    My parts are an i5 2500k, a Gigabyte 768 mobo, a Seasonic 750x PSU, a Gigabyte 6850, and 8GB of GSKILL RAM. And I have an aftermarket heatsink as well. CPU is not overclocked.

    Essentially, I was running it overnight to patch a game, and this morning when I came to wake it up the monitor wasn't showing anything. Turned it on and off again, "no signal", etc. I tried turning on my sound and restarting the computer, and I didn't get the bootup sound, so I'm guessing my CPU is not booting at all.

    I have run it overnight before with no problems, and as stated, I have an aftermarket heatsink and it's not overclocked. I would be very surprised if it overheated.

    Also, normally when I boot up, the motherboard LEDs start up for a second and then turn off. Now they're just staying on- not blinking, just staying on. I don't think it's the PSU either, as it has more than enough wattage, but a failure is always possible I suppose.

    I have not taken it apart yet- I'd like to avoid that if possible- but if you have any advice I'm willing to take it. Hopefully, if I can't resolve it, I can at least find out which part is the issue.

    Thank you very much for your help!
     
  2. etaf

    etaf Wayne Moderator

    Joined:
    Oct 2, 2003
    Messages:
    55,877
    No beeps at all

    I would check every thing is seated correctly
    and
    then reduce to minimum configuration - Motherboard , PSU, Memory , Graphics and harddrive
     
  3. crabsmack

    crabsmack Thread Starter

    Joined:
    Dec 17, 2011
    Messages:
    7
    No beeps at all.

    I've gone through, and everything seems to be fine- also, seeing home it was just running last night, I don't see how anything could have been unseated. But yeah, everything is where it's supposed to be.

    I've unplugged everything except what you said- still in the same situation. Seeing as this just failed in the middle of normal use, and wasn't defective from the start- is this a common thing to happen? Is it any more common for one part than the other?

    Notably, with my original defective motherboard, the PSU would turn on, run for a bit, then turn off, and repeat this loop forever. So maybe it isn't the same thing. Of course, maybe there are just multiple ways for a motherboard to fail.
     
  4. etaf

    etaf Wayne Moderator

    Joined:
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    Messages:
    55,877
    yes its common for parts to just fail

    not sure which part would be more common - PSU, motherboard

    no beeps at all - did it beep once when it was working in the past
     
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