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Thread: M2-ATX Problem

  1. #1
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    M2-ATX Problem

    I have had a problem with my M2-ATX power supply and I thought it was caused by the ignition wire being wired to the acc key position. I rewired it to the on position and it still does not work right.
    My problems are:
    • When I turn the key to off the computer just goes off no shutdown
    • If I shutdown the computer and turn the key to off the computer comes back on
    • The amps thump when comp is turning on and shutting down.
    • The front right speakers hums/buzzes during start up(could be amp problem)


    Any help is greatly appreciated.

  2. #2
    Fusion Brain Creator 2k1Toaster's Avatar
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    Quote Originally Posted by packruler View Post
    I have had a problem with my M2-ATX power supply and I thought it was caused by the ignition wire being wired to the acc key position. I rewired it to the on position and it still does not work right.
    My problems are:
    • When I turn the key to off the computer just goes off no shutdown
    • If I shutdown the computer and turn the key to off the computer comes back on
    • The amps thump when comp is turning on and shutting down.
    • The front right speakers hums/buzzes during start up(could be amp problem)


    Any help is greatly appreciated.
    1) Sounds like you have constant and ign switched on the M2

    2) Normal M2 behaviour

    3) The amp thump is timing based, so if it takes your system longer to initialize audio drivers than the M2 is set for, then it will thump. Shutting down there is no such feature, so it will happen if only using the M2. <shameless plug>Using something like the FB you can have it control your amp and it wont do anything until after windows loads.</shameless plug>

    4) Again because your amps are on and the audio drivers are not yet initialized. So tiny noises are being amplified. Only fix is to not turn on the amp until the drivers are loaded.
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  3. #3
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    Thank you I'll check those out this weekend.

  4. #4
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    I checked the wiring and its correct. any other ideas?

  5. #5
    And then I was mod. Tidder's Avatar
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    How are your jumpers set on the M2?

    It really does still sound like a wiring problem, or a defective M2.
    Tidder

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  6. #6
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    I tried both B (5 sec) and C (10 sec) no joy

  7. #7
    And then I was mod. Tidder's Avatar
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    Have you tried manually testing it? And by that I mean hooking it up to a known constant 12v (if it were me, I'd run a new wire directly from the battery to test with), and triggering the switched yourself to see if the same behavior exists?
    Tidder

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  8. #8
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    I'll try that this weekend.

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