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Thread: M2 turns on too soon????

  1. #1
    Constant Bitrate lanman1's Avatar
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    M2 turns on too soon????

    When I turn on my ignition, my 5v rail turns on immediately but my motherboard doesn't turn on. If I turn the Ign off and back on before my powerdown interval, it powers on fine. I believe that my motherboard needs a second or 2 after getting power before it's ready to post. Does anyone know exactly how long after Ign goes high that it initiates PwrOn? Anyone seen this before? I also have some weirdness with EMI on my monitor that is power supply related. Maybe I just have a bad M2.


    My board it a WinFast NForce 4 Ultra with an Athlon 64.

  2. #2
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    Did u read the M2 manual and the jumper settings?

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    Constant Bitrate lanman1's Avatar
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    Quote Originally Posted by ARCTiC View Post
    Did u read the M2 manual and the jumper settings?
    Yes but there isn't anthing in there about the delay before turning the motherboard on, just delays before turning it off. Or am I missing something obvious?

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    When that happens, do you see a black screen with just a blinking cursor? I think I'm having the same problem as well. It doesn't happen all the time, jus occasionally so I don't know what to do?!

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    Constant Bitrate lanman1's Avatar
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    Quote Originally Posted by SentraVIP View Post
    When that happens, do you see a black screen with just a blinking cursor? I think I'm having the same problem as well. It doesn't happen all the time, jus occasionally so I don't know what to do?!

    No, it sinply doesn't power on. I can go short the pins to initiate poweron just fine and if the 5v rail is already energized, it will power on. The only time I see this is when I tru to start after the 'hardoff' time interval has expired. As a test, I put this on a 110v poer supply and tried to time how long it takes for the motherboard to accept a poweron after power is applied to the ATX connector. It is somewhere around 1 second.

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    Quote Originally Posted by lanman1 View Post
    Yes but there isn't anthing in there about the delay before turning the motherboard on, just delays before turning it off. Or am I missing something obvious?
    No, it's me.. i was sure it were mentioned somewhere on the jumper settings, but it isn't, the mobo turns on after 3 or 4 seconds. sry.

  7. #7
    Constant Bitrate lanman1's Avatar
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    Anyone out there have a nForce4 board working ok with an M2 ATX?

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