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Odd PC Power Problem?

Discussion in 'Hardware' started by Triple Jumper, Dec 12, 2006.

  1. Any suggestions as to the likely cause of these symptoms?

    - switch on UPS (or wall socket)
    - press power-on switch on front of PC case
    - nothing happens - total silence
    - open case: there is a light on a diode on the motherboard, so some
    juice must be getting that far
    - switch off PC by holding down front power switch - motherboard light
    goes off
    - switch back on - motherboard light comes on
    - no clues from the power supply, since it is fanless
    - leave it in disgust while I go for a job interview
    - come back, have a cup of tea, then several hours after last touching
    it, and with no-one near it, the PC springs to life, boots normally and
    has now been up for 5 hours
    - this has happened 2 days running

    I haven't tested the CMOS battery (haven't tested anything, actually) -
    could that be a possibility? Or maybe gremlins really exist?

    Triple Jumper, Dec 12, 2006
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  2. Triple Jumper

    John Guest

    I would check the BIOS setup and make sure things are setup in the power
    management section correctly. Then, if in doubt, replace the battery
    and clear the BIOS (usually a jumper on the motherboard) and reset your
    BIOS settings for proper operation and performance.

    John Van Winkle
    John, Dec 28, 2006
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  3. I swapped the PSU - no problems since then.
    Triple Jumper, Dec 29, 2006
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