Question about ASUS A8N-E Motherboard

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Motherboard I have an Asus A8N-E MB, worked fine until the other day, when suddenly I had no power to my mouse (connected to usb ), keyboard, and monitor. When I reboot, my mb has power, my heatsink fan runs, and my hard drive is running ( I can feel the hd vibrating ), any ideas ??

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  • mar5lyn2 Mar 29, 2008

    Thanks for the advise, it wasn't yhe button cell battery, so I'm kinda stalled, is there a way to test the mb, and processor, short of taking it to a shop /

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I would start by process of elimination.

  1. Disconnect power cord
  2. open case
  3. remove button cell battery from motherboard
  4. press power on button to dissipate any stray voltage.
  5. re-install button cell battery.
  6. re-connect power cord
  7. power up pc.
If everything powers up ok and you get a CMOS checksum error, then enter bios set date,time etc. and go.

if the power on self test comes on and still no keyboard,mouse,video etc and no beeps. It may be your board or the processor.

Posted on Mar 27, 2008

  • Mark Williams
    Mark Williams Mar 30, 2008

    there is a way but it is a diagnostic card that fits into the computer.
    Link to information.
    I've invested in one of these cards but it doesn't catch everything.
    A emachines lost sound/front header/and 1 IDE channel but the diagnostic didn't catch it. It did catch not enough power coming from the power supply to power the video card.

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