Question about Intel Desktop Board D845WN Motherboard

2 Answers

Cannot power on PSU

I have checking my mother board, there is supply power in, but when i press the on/off button, mother board not working, it is standby battery (CR2032 3V) low will cause unable trigger the PSU power.

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  • john2008 Jan 01, 2008

    Already changing new PSU, but still unabled switching on the PSU. i have checked the wires connection (HDD led, reset sw, power sw, power led) to motherboard, even i press the button but still cannot see power led light on.

  • john2008 Jan 03, 2008

    The PSU had a main incoming power supply and out going voltages supply to motherboard, and beside the power connected at motherboard LED (green) is ligh ON, but when i trying press front panel power switch on/off, there is no LED light ON or power trigger the PSU and motherboard.

  • peculiarguy May 16, 2009

    I too have the same problem with my mother board. i.e., the power supply is ok. standby LED (Green LED on the mother board) is glowing when power on. but when i press the power button in the front panel, the computer doesn't start. (my mother board is ASUS K8S-MX, Processor is AMD Athlon 3000 64 bit). Someone help me please



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Does you cpu fan runs

Posted on Jan 02, 2008

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  • M Karthikeyan
    M Karthikeyan Jan 02, 2008

    What do u mean by PSU is it the SMPS of the CPU

  • M Karthikeyan
    M Karthikeyan Jan 03, 2008

    If the problem has not been solved yet Kindly give me your current status. I will be glad to help you.

  • M Karthikeyan
    M Karthikeyan Jan 03, 2008

    SMPS means Switch Mode Power Supply. Its the Power supply Unit for the CPU. Kindly Post me your Current Status, I will do my Best in Helping You.

  • M Karthikeyan
    M Karthikeyan Jan 04, 2008

    The processor might not be seated correctly, Remove the processor from the slot, and refix it properly and carefully. Press the power button and check it.

    Another way is to deassembly the cpu. Take the MB, power supply unit, ram, keyboard, and monitor.

    spread a non conductive protection on a flat surface, place the motherboard, SMPS unit, ram, keyboard, monitor, Now connect the barbones to the mb. Now switch on the power and check if it powers up.

  • M Karthikeyan
    M Karthikeyan Jan 05, 2008

    Kindly POST me your status.

  • M Karthikeyan
    M Karthikeyan Jan 05, 2008

    Check your system with a good working processor just like yours. if the system works, the problem is with your processor, otherwise the problem is with your motherboard.

    Kindly POST back with your results


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If you know for certain that the Power Supply is good. (tried another in there) then you have a bad motherboard. No, the CMOS battery will not keep it from coming on.

Posted on Dec 31, 2007

  • 2 more comments 
  • Thomas Christopher
    Thomas Christopher Jan 01, 2008

    does this really deserve a inappropriate?

    This does answer your question,

  • Thomas Christopher
    Thomas Christopher Jan 01, 2008

    Did you try changing the battery? Did it help?

    Try disconnecting some of the extras and or unnecessary devices that are or would pull power (fans)
    Also anything not needed to power the system.

    Bare bones boot boot configuration
    If these do not work then it is safe to say that the board is bad.

  • Thomas Christopher
    Thomas Christopher Jan 03, 2008

    It is safe to say that the board is bad.

  • Thomas Christopher
    Thomas Christopher Jan 04, 2008

    I helped you figure out your problem. Please rerate this to at least "thanks for trying"



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