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Computer Starts for 1 Second then dies

Discussion in 'Hardware' started by canucks, Nov 12, 2010.

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  1. canucks

    canucks Thread Starter

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    Hello Noob here,

    I have a built my own computer, however one day when I got home the computer was shut down and it would not restart again. I finally got it to restart but it goes on for 1 second the phase LED turn on the mobo but then dies immediately. I did some research and the first answer that came up was that it may be the power supply. I got a new one however still the same problem. Then I heard it may be the mobo, so I did an RMA with Gigabyte but they said there was nothing wrong with the mobo and they just updated the bios. I looked at the cpu and from what I can tell there is no physical damage to that ie. burnt. Any idea on what may be the problem? It has been causing a lot of stress lol

    My Specs:
    OCZ ModXStream Pro 700W
    Intel i7 860
    G.SKILL F3-12800CL9D-4GBRL Ripjaws
    Gigabyte UD4P
    Nvidia Geforce 7600
    Creative Soundblaster Audigy 2
    WD Raptors 2x74GB
     
  2. etaf

    etaf Wayne Moderator

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    could it be a temperature issue - is the fan on the CPU working OK - is the heatsink correctly seated on the CPU - is there thermal compound between heatsink and CPU
     
  3. canucks

    canucks Thread Starter

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    yep to all, the thermal paste is the one which was provided by intel. could it be the thermal paste is very bad? Also the heatsink is provided by Intel. Would it be worthwhile to upgrade it?
     
  4. etaf

    etaf Wayne Moderator

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    how long has it been working correctly
     
  5. canucks

    canucks Thread Starter

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    it worked for about a month before it failed
     
  6. etaf

    etaf Wayne Moderator

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    i would remove all devices except for - System harddrive , mobo, psu, memory, graphics
    see if that works in a minimum configuration
    If the mobo has integrated graphics and sound (could not find the mobo online - whats the exact model) - I would use those and remove any cards you have installed
     
  7. crjdriver

    crjdriver Moderator

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    Before you do anything, open the case and check the mounting of the hsf. Take you hand and place it on each of the four push-pins and attempt to move them. If you can move any of the pins or if they are loose, you have found your problem. With the intel type coolers, they must contact the cpu heat spreader with a min of 15lb clamping force. Less than this and you have problems.
     
  8. win2kpro

    win2kpro

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    On all Intel LGA "push pin" coolers the notch on the pins must be pependicular to the heatsink or they will not lock down to the motherboard.

    Look at all the "push pins" and make sure the notch is aligned correctly, then go back around and push down firmly on each pin. Some people find that it is easier to push down on 2 pins at a time diagonal from each other to engage the locks properly.

    If it is necessary at any time to remove the cooler, after the pins are unlocked by turning the notch counterclockwise 90° it is also necessary after the pins are turned to lift UP on the pins to fully unlock them.
     
  9. canucks

    canucks Thread Starter

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    http://techgage.com/article/gigabyte_p55a-ud4p/ here is the exact mobo I have, I don't believe it has integrated graphics.

    Anyways, I am just waiting to get my mobo back from gigabyte and give ur suggestions a try, and report back.
     
  10. win2kpro

    win2kpro

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    When your board is returned it will be necessary to thoroughly clean the bottom of the heatsink and the top of the processor heatspreader before reinstalling the cooler. I use denatured alcohol to clean the surfaces, but any good isopropyl alcohol will be just fine.

    In my opinion the two best thermal compounds you can use for cooler reinstallation are #1-Innovation Cooling (IC Diamond) or #2-Arctic Silver 5.

    IC Diamond has two different sizes one called IC Diamond 7 carat and one called IC Diamond 24 carat. The only difference in the two is the amount of compound in the syringe.

    The specs on Innovation Cooling are located here;

    http://www.innovationcooling.com/index.html

    Application instructions are located here;

    http://www.innovationcooling.com/applicationinstructions.htm

    Arctic Silver specs are here;

    http://www.arcticsilver.com/#

    Arctic Silver application instructions are here;

    http://www.arcticsilver.com/instructions.htm

    Personally no matter which compound I use I only apply the thermal compound to the center of the processor heatspreader (like the Innovation Cooling Instructions) and let the clamping action do the spreading. Arctic Silver's instructions are a little different, but use the instructions that you feel most comfortable with.
     
  11. Rich-M

    Rich-M

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    I have to agree with everyone else, it sounds like one of the pins was not all the way through the board or not clamped tight and that can be so tough to see. It may have been good enough for a while and then just loosened up enough to cause this.
     
  12. canucks

    canucks Thread Starter

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    Okay so I got my mobo back and I bought a heatsink. Still the same problem. Now what I did was I removed 1 piece of hardware and tried to start it up. I removed the video card the computer now starts for longer but then dies and tries to start up continuously but keeps dying. This is because the mobo doesnt have integrated graphics. But now does that mean I found my problem and the problem piece was the video card?
     
  13. osterac

    osterac

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    Is the card a 7600gs? If so, is it hooked up to the power supply? If not, do you have access to another machine to try the video card in?
     
  14. win2kpro

    win2kpro

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    Unless you have spare components, i.e. graphics card, memory, power supply, etc. the machine needs to be on a workbench where components can be switched to find out what is failing.
     
  15. canucks

    canucks Thread Starter

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    tried with another video card....same problem. starts for about 2 seconds and dies and keeps trying. Really confused now. I have absolutely no idea what the problem is
     
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