How to jump start a Mac Pro backboard?

Discussion in 'Mac Pro' started by highdefw, Jun 29, 2011.

  1. macrumors 6502

    Joined:
    Apr 19, 2009
    #1
    How exactly do I jump the backboard plane? Must all 4 pads be connected for whatever functioning I'm trying to activate?
     

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  2. macrumors 68000

    Joined:
    Sep 10, 2008
    Location:
    Asheville, NC
    #2
    Huh? Your question makes absolutely no sense. What are you trying to do?
     
  3. macrumors 65816

    DanielCoffey

    Joined:
    Nov 15, 2010
    Location:
    Edinburgh, UK
    #3
  4. macrumors 65816

    AppleNewton

    Joined:
    Apr 3, 2007
    Location:
    1 Finite Place
    #4
    what generation Mac Pro is it? 2008, 2009, 2010?
     
  5. macrumors newbie

    Joined:
    Jun 7, 2011
    Location:
    Sweden
    #5
    The easiest way to find out is just to get a multimeter, stick one of the conductors on the soldering at the ON/OFF button and the other conductor you move around on the different soldering until you get an conductive signal trough the two conductors.

    When you found the circuit, fallow it all the way until were it starts...probably somewhere on the motherboard.
    You could just find the cable also going of the card at the front of the mac.
    But just to be on the sure side, I would fallow the circuit to the motherboard it self.
    Short the two soldering and a signal is given to the PSU and it will give power to start the motherboard.
    Manual start up..the "hard" way!
     
  6. macrumors 65816

    AppleNewton

    Joined:
    Apr 3, 2007
    Location:
    1 Finite Place
    #6
    Try this reference:

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