Question about Asrock 775VM800 Motherboard

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Unknown Shutdown My computer froze up on me, and I rebooted. After the reboot, it still remained sluggish. It then shut down completely and will not power up. When I open the case, and look at the motherboard, the fans for the cpu and the case start up briefly ( about 3-5 seconds) then shut off. What could it be? I think it's the motherboad, but how can I tell without swapping it out with a known good one?

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  • BiggPatt14 Sep 05, 2008

    I tested the power supply also. I forgot to mention that in my previous post. I thought it was the power supply at first, but because I was getting power to the cpu and to the fan on the case, even though it was brief, I ruled out the power supply. I even tested it with a multimeter. I haven't tried to swap drives because my main drive (the one with the OS on it) is a SATA drive. I don't have a back up SATA drive to test. My other drive is an IDE and is simply a storage drive. I didn't think of the RAM as a possible problem. Could it be anything else besides the power supply or the RAM?

  • BiggPatt14 Sep 05, 2008

    I'll try the RAM. If that doesn't work, I'll try the CMOS battery. I never overclocked the system.

  • BiggPatt14 Sep 05, 2008

    I'll give it a try. Thanks.

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I think this may be your power supply failing. That would be the best place to start. What you could do for debugging purposes is remove all unneccesary components (extra CD drives, extra PCI cards) and test the system then. Also test the RAM to make sure there is not an issue with one of the sticks (although, the computer would most likely beep at you if there was upon power). Also, if you have a backup harddrive, try swapping it with the current one.

I would mostly guess it is the power supply though. If you have a backup or spare computer, try connecting the power supply to that one and see if it boots ok.

Posted on Sep 05, 2008

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  • Dave MacPhee
    Dave MacPhee Sep 05, 2008

    The RAM could actually be a problem. Try taking it out, clean it off (air can or something, and the contacts on the mobo) and put it back in.. You could also try swapping the CMOS battery with a new one, as it can sometimes cause these types of problems.

  • Dave MacPhee
    Dave MacPhee Sep 05, 2008

    Another thought, have you overclocked the system at all?

  • Dave MacPhee
    Dave MacPhee Sep 05, 2008

    If none of those things work. Perhaps you had a power surge and in that case, what you could do is leave your system off (and unplugged) for a couple of days to let the power supply discharge fully, and then plug it back in and turn it on. Sounds strange, but might just do the trick...

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