Question about ASUS K8N Motherboard

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K8N motherboard I've got an ASUS K8N-EAYVZ mobo and it went dead. No fans working or HD. Only sign of life is the Green power LED which is ON. I've tried resetting bios - but no change. I know power supply works if you short out the ps on pin to com. So it looks like the mobo isn't starting the power supply? power supply is Eagle ATX400w. Any ideas

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  • George Somerville May 30, 2008

    Thanks for your advice. Unforetunately I don't have a sparespower supply, however I was able to start by PSU by shorting the ps-on pin on the 20pin connector and this powered fans ok. So I believe something on the mobo is stopping the PSU from starting.

  • George Somerville Jun 14, 2008

    my problem has progressed a little. I treid a replacement power supply, but this made no difference. I've now replaced the mobo to an almost similar type, however when booting from the HDD the system shuts down. I can get into bios, but any booting from the HDD shuts down the pc.



    any ideas?

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Have you tried a secondary PSU? (though it sounds like your motherboard needs replacing)

Posted on May 25, 2008

  • Steven Burn
    Steven Burn May 30, 2008

    Shorting the pins to get the power through usually indicates a short on the board and/or a faulty PSU.

    I'd still advise getting a new PSU before proceeding (a new PSU will only cost around £10-£15)

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