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  1. #1
    3 Star Lounger
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    A friend has a desktop PC with Windows XP. For the past couple days he's been turning if off as usual at night but finding it on when he comes back to the office in the morning.

    He said that last night he waited around a few minutes to make sure it was indeed off. He said he is definitely hitting SHUT DOWN and not RESTART.

    I vaguely remember messing with something like this a few years ago but don't remember if it was to try and set up automatic turn on or deal with this type of problem.

    For tonight I told him to unplug the network cable from the PC to isolate it from the internet. He has a modem, wireless router and 2 computers total on the network.

    Perhaps we should look into the Bios settings for something there? Or is there something in Windows that will turn on a PC automatically? Or is it foul play? Seems like it would have to be one of the three.

    Thanks,
    BH

  2. #2
    Plutonium Lounger
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    See for example Computer turns on by itself.

    Note: the key to enter BIOS setup during startup varies - the article mentions Delete, but on my Dell it is F2. See How to access/enter Motherboard BIOS.

  3. #3
    Uranium Lounger
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    I've never known a system that could power itself on after it has been "Shut Down". Without electricity going to the OS, not the battery, power supply or the MOBO, the system can't possibly boot.

    Tell your friend to take the power cord for the system home with him at night for a couple nights and see if it happens again. If it's an office setting, then someone from the maintenance crew is probably using it at night.
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  4. #4
    3 Star Lounger
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    Hans,

    I knew I remembered looking at something along these lines. It was "wake on LAN" in the bios. I will check that out for him next.

    Doc Watson,

    Unfortunately there is no one in the building at night. It's a small family owned local lumber yard. My friend owns and runs it and he has 2 or 3 employees. Nobody is there after 6pm.

    Before reading your post I told him to take the power cord out for the night !!! He doesn't need to go so far as to take it home with him........but a great idea !!!

    Thanks,
    BH


    [quote name='DocWatson' post='782790' date='02-Jul-2009 20:21']I've never known a system that could power itself on after it has been "Shut Down". Without electricity going to the OS, not the battery, power supply or the MOBO, the system can't possibly boot.

    Tell your friend to take the power cord for the system home with him at night for a couple nights and see if it happens again. If it's an office setting, then someone from the maintenance crew is probably using it at night.[/quote]

  5. #5
    4 Star Lounger
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    [quote name='bhdavis' post='782793' date='02-Jul-2009 21:34']Hans,

    I knew I remembered looking at something along these lines. It was "wake on LAN" in the bios. I will check that out for him next.


    Before reading your post I told him to take the power cord out for the night !!! He doesn't need to go so far as to take it home with him........but a great idea !!![/quote]

    My Dell at work has a BIOS setting to switch itself on (which I use Monday-Friday -- get all that pesky active directory script running stuff out of the way before I get there).

    I agree with Doc. Switch it off at the wall. Take the cable home if phantom surfing is suspected. A tiny batch file in startup can write date/time to a file when windows boots if further troubleshooting is required.
    John (Unreconstructed Jacobite)

  6. #6
    3 Star Lounger
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    Thanks again everyone.

    A little more off/on testing was done this afternoon. He turned the computer off and hung around. About 15 to 20 minutes later it turned on by itself.

    Next step is to see if it does that with the LAN cable removed. If that clears the problem I'm guessing the Bios settings.

    Thanks again,
    BH

  7. #7
    Uranium Lounger
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    [quote name='bhdavis' post='782793' date='02-Jul-2009 16:34']Doc Watson,

    Before reading your post I told him to take the power cord out for the night !!! He doesn't need to go so far as to take it home with him........but a great idea !!!

    Thanks,
    BH[/quote]
    Great minds think alike.
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  8. #8
    Super Moderator BATcher's Avatar
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    I set our Dell Optiplexes to power themselves on at 04:30 each weekday morning so that they can receive backups from our servers.
    This is done via a couple of power settings in their BIOSes. They will (almost all) be in shutdown mode (not hibernate or standby) overnight, because users are programmed to do this!
    I also wake them up occasionally during the day from standby or hibernate using WakeOnLAN, when they are not being actively used.
    BATcher

    Time prevents everything happening all at once...

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