Question about Biostar M7VIG-400 (M7VIG 400-COMBO4) Motherboard

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Computer turns on but no Video and doesn't go through POST.

I am working on a computer for a friend. Someone built this computer for them about 3 years ago. It started giving errors about a fan failure. In an attempt to see what was wrong they opened up the computer, took off the heat sink and processor and put it back on. Now when you turn the computer on, all the fans run but it doesn't give any video and it doesn't even sound like it goes through the POST process. Is the processor fried or what is going on?

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  • craigw371 Nov 11, 2008

    I tried taking the CPU fan off of the processor, removed the processor, reinserted the processor and CPU fan. I hooked everything back up and turned it on but got the same results as before. What next?

  • craigw371 Nov 11, 2008

    I unplugged everything from the motherboard. The only thing that was left was the power supply, RAM and CPU with fan. It turned on but didn't have any video. So not any different than before.

  • craigw371 Nov 11, 2008

    Yes, I had a different stick of RAM to try. It failed in the same way. I will pursue getting another CPU and keep you posted.

  • randypor Nov 30, 2008

    my mother board is simply acting up i tr to install xp everything moving very very slow i have 256mb ddr1 + cpu ahlon 1250mhz + Western Digi 40gigz H. I try so man things im am cluesless right about now.HEELLLPPPP!
    randypor@walla.com


  • meloprocker Jan 13, 2009

    I am having the same problem! But I don't just wanna go out and but a processor before I know which one would be compatible! Would any processor be compatible with the motherboard or how does this work? I don't know cuz this is my first time dealing with something like this! I tried ALL of those things and the exact same thing is happening to me! Exactly the same thing! Only one of the two buttons stay ON in the front too! the red one! Both fans turn on and I think the Hard Drive is working fine too! I already tried it in another computer! I checked the RAM and it's not the problem! If ANYONE knows for sure what the problem here is... please tell me! :O Contact me at meloprockre@yahoo.com! Please! 

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Before you "fry it" try taking the CPU fan off of the processor, remove the processor, reinsert the processor and CPU fan and see what happens.

Posted on Nov 11, 2008

  • Lou Labetti
    Lou Labetti Nov 11, 2008

    Unplug everything from the motherboard, Any pci cards, no Hard drive or cd rom. The only thing to be connected is the power supply, RAM, CPU with fan and video card (if not on board). Ket us narrow this dow befor we say we have a bad processor.

  • Lou Labetti
    Lou Labetti Nov 11, 2008

    Do you have a different stick of ram to try. If that fails (if you still have the same condition) then you ether have a bad mother board or CPU. Since the fans work that would take the Mother board out of the equation.

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