Mac OS X boot screen blackout

Discussion in 'Mac Pro' started by Cpoor, Jan 19, 2016.

  1. Cpoor macrumors newbie

    Joined:
    Dec 12, 2012
    #1
    I have a 2009 Mac Pro flashed to 5,1 with 2 Xeon 5690, 64gb ram , Ge Force 680 4 gb flashed w/ Mac boot screen. I am running 10.11.2, and the latest nvidia Mac driver. There is one cal digit USB 3.0 esata pic-e cardconnected to the OS X boot drive.y
    When the dvi cable is connected to the DVI-I port, the boot screen stops half way through, and quits.
    The Windows 10 drive boots normally off the same port while holding down the option key.
    The OS X drive boots normally off the DVI-D port.
    Any thoughts?
     
  2. Fl0r!an macrumors 6502a

    Joined:
    Aug 14, 2007
    #2
    Thats normal behavior, your card will lose one DVI port when flashed with this ROM.
     
  3. Cpoor thread starter macrumors newbie

    Joined:
    Dec 12, 2012
    #3
    Thanks for you input.
    Will the displayport function normally, and why is Windows supported on that same DVI-I port?
     

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