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  1. #1
    Join Date
    Nov 2001
    Banned Camp

    What is my -12 volt line for? Also software to monitor it...

    I am getting some strange numbers on that line while everything else is stable. And apart from MBM5, I have not been able to find a prog that will monitor that line.

    So what does it do for my system if it is not important for most progs to monitor it? And if it does anything why would my system work at all with such huge voltage swings?

    If it helps my voltages are:

    +3.3.... 3.18.... 3.23.... 3.23

    ..+5..... 4.81.... 4.92.... 4.89

    .+12... 12.22.. 12.46.. 12.44

    .-12.. -16.20.. -3.37... -7.37

  2. #2
    New Member
    Join Date
    Nov 2002
    New York
    The -12v line is used for the serial ports and the game port. Nothing else.

  3. #3
    Join Date
    Nov 2001
    Banned Camp
    OK. But I have nothing running on that line. So why should I see voltage swings there?

    I am wondering if MBM5 is a good program and I want to find something which would either confirm or deny the readings that I am seing....

  4. #4
    Fold For 32! MoonWolf's Avatar
    Join Date
    Jun 2002
    MBM5 is great. You voltage swings could be caused by the incorrect sensor being used to monitor the rail.
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  5. #5
    Member deadzone's Avatar
    Join Date
    Oct 2002
    How do you determine wich sensor to use?

  6. #6
    Member IceMan3928's Avatar
    Join Date
    Mar 2002
    Little Rock, AR (AR is Arkansas NOT Arizona!!!)
    personaly i have never seen a -12v line at -12v. I always see it vary from like -1v to over-20, i really dont think its that important.
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  7. #7
    Member JimmyG's Avatar
    10 Year Badge
    Join Date
    Apr 2001
    Author Profile
    The reason the -12 volt line has big swings is because it is unloaded.
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