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Thread: M3-ATX not turn on in P1 mode.... Help!

  1. #1
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    Exclamation M3-ATX not turn on in P1 mode.... Help!

    Hello Guys!!
    Look at my problem ....
    For testing I use a common source of PC ATX power supply...

    When I turn on the M3-ATX in p0 mode works normally ...
    When I turn on the M3-ATX in p1 mode and turn the ignition on the white cable 12v positive, the M3-ATX turns on, then turns off and flashes the LED (blinks slowly).
    I searched the net and they say that the source is waiting motherboard start (when the led blinks slowly).

    For running in P1, look what I have to do:
    Turn gabinet power button on the power of mobo and when I press the button, works normally...

    But when I turn the m3-atx on the power of mobo, it does not turn on the mobo and the LED blinks slowly ...
    Anyone know what can be?
    Can anyone help me? Thanks!

  2. #2
    MySQL Error soundman98's Avatar
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    do you have the small power button jumper cable attached?

  3. #3
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    No.. only the normal connection even ... what I did was turn the power button on the motherboard's office and started the same way being in p1. That is the m3 is not giving the pulse to turn on the mobo

  4. #4
    MySQL Error soundman98's Avatar
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    if you recenly bought it, contact the seller for a replacement.

  5. #5
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    Jun 2011
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    Yesterday I did some tests and did something very interesting ....

    1. When I turn on the motherboard, even with a common source atx, when I turn on the source, the motherboard turn on itself for 5s and then OFF, only then, can I push the power button of the case to the motherboard start.
    2. I discovered that for this reason that the source does not turn the motherboard ... because she sends a pulse to link these 5s when the motherboard turns on and off alone ...
    3. When I turn on the ignition first. Since nothing happens (the board on and off by itself)
    5. So I turn off the ignition and turn around again operate normally the source initiates the motherboard!

    This is happening only the first time when a turn on the ignition, the motherboard turns on and off alone ... I've searched and found no solution. Is it a configuration of power motherboard?
    What you guys think I can do?
    My motherboard is Intel D252mw

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