Question about Asrock K7VT2 Motherboard

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Does not power up

My Asrock K7VT2 motherboard had been running perfectly for almost 4 years. Suddenly the PC died and the power supply had got hot. I first suspected the power supply, because after letting it cool when I pressed the power on button nothing happened, except for the power on LED which lit. None of the fans not even the power supply one ran. I tried a new power supply but this was no different. I tried removing the loads on the motherboard one by one to see if there was a short-circuit  (including removing the processor) but none of this made any difference. There was no power to the board. There is clearly some power getting to the motherboard because the LED lights but that is all that occurs.

Posted by Anonymous on

  • Anonymous Oct 22, 2007

    Actually the board is not dead. The only problem is with the ATX electronic power switching on the motherboard and a failed switched-mode power supply. Often when the switched-mode power supply goes down it can damage the motherboard circuits, usually the transistor which switches pin 14 of the power socket.

    If you know how to find it and have a suitable substitute this can be replaced and corrected. Otherwise you can just short Pin 14 to ground and it will run again.



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I think you've done a good trouble shooting job, and proved that the board is dead.

Posted on Oct 21, 2007

  • Anonymous Oct 22, 2007

    A failed transistor is equal to a dead board for most mortals.
    danng may have made a lucky guess, but there's no guarantee he's right, and no assurance that other damage hasn't occurred.
    This is quite an old board and not worth fixing.Look for something to replace it with.



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hard drive

Test all leads that attach to your hard drive including electrical extensions,IDE,SATA

the leads from your "((motherboard to your hard drive))" make sure they have a secure connection and are not faulty or just replace them they could be faulty
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1 Answer

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Consider updating your motherboard bios.

Also make sure that your memory is correct for this system:

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1 Answer

Trouble shooting of motherboard

Hi thayal, systems shut down because of over heating. This is normal so nothing burns up. Try opening the case & clean the CPU fan. Remove any & all dust from the fan blades. Use a clean non used paint brush to help loosen any dust build up. Than blow the entire system out with canned air. Blow out the power supply as well. When finished put the case back together & see if the system shuts down.



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