PC starts, shuts off 10 sec later

Discussion in 'General Hardware' started by DF-1, Sep 10, 2014.

  1. DF-1

    DF-1 Maha Guru

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    GPU:
    EVGA gtx 580
    I'm having a problem with my PC. it starts for 10 seconds and then shuts off and tries to power back on.

    I get nothing on the screen (no bios, motherboard logo)

    I don't hear any beeps.

    I tried powering it on without the hard drive/ssd, mouse,keyboard,camera,ethernet, case fans,dvd drive, but it behaved the same way.

    I tried the power supply paper clip test https://www.youtube.com/watch?v=5FWX...=youtube_gdata

    and it seems to be powering on just fine.

    I tried taking out the cmos battery and putting it back in

    I'm not sure what to do.

    i have a 2600k, gtx 780, 8gb 1600mhz, samsung 840 250gb ssd,3tb seagate hdd, corsair 950TX 950w psu, gigabyte z68 mobo
     
  2. Extraordinary

    Extraordinary Ancient Guru

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    GPU:
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    Sounds a possible motherboard problem

    Possibly PSU, but sounds more like the board to me

    Check nothing is shorting out / pins touching / bent

    Did you try without the GPU too ?
     
  3. DF-1

    DF-1 Maha Guru

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    i took a look a few times, nothing seems out of the ordinary.

    since im on z68 i don't think i can try w/o the GPU since it doesn't have any onboard video out. I did try powering it on without the 6/8 power pins to the GPU just for the heck of trying anything i could think of. same result.
     
  4. robtorbay

    robtorbay Master Guru

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    GPU:
    EVGA GTX 980ti SLI
    After trying everything that you have and not getting any magical bios beep I have a feeling that might be a mobo related item.

    Best thing to do is check out the manufactures website for the board and see if there are any special resets that you can do or any ways to force flash the board.

    If there is nothing like that available, try a replacement board and hope for the best. Based on the age of the system I think you should locate a board used for a decent price.

    Cheers!
     

  5. Extraordinary

    Extraordinary Ancient Guru

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    Id try it without the GPU in at all to see if it keeps powering off and on, doesn't matter if you have no onboard, you need to test it barebones to rule everything else out
     
  6. clawhamer

    clawhamer Ancient Guru

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    ^ agree with Extraordinary, at least give it a try... at this point you have nothing to lose.

    Sounds like it could be either psu or mb related, but my guess would be mb. Is there an on board pezo or do you have one connected ?

    Have you also tried with out any ram installed at all, that should cause an audible diagnostic if the board is still functioning.

    And just for the hell of it, try removing and\or replace the cmos battery.
     
  7. ---TK---

    ---TK--- Ancient Guru

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    I thought z68 had the igp enabled. I know p67 doesnt
     
  8. clawhamer

    clawhamer Ancient Guru

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    Yeah, I thought only the 2550K had igpu disabled, unless his board doesn't support it (no video connection).
     
  9. DF-1

    DF-1 Maha Guru

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    hey guys, so i tried a few different things with no connectors (USB/DVI/HDMI/etc/etc)

    no case fans,hdd,ssd nothing but the essentials.

    What I found out was, it stays on when I don't have the GTX 780 plugged in.

    stays on meaning the PSU and its fan is on, and the "Phase LEDS" on the motherboard stay on. (i think they turn off after it exits bios)

    of course I can't see whats happening in the BIOS because my motherboard doesn't have any video out.

    What do I do from here? Do I need a new video card?
     
  10. Agent-A01

    Agent-A01 Ancient Guru

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    Looking at a bad PSU/GPU. Got a friend to try out your 780 in their pc?
     

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