Mac Pro 1.1 boots up but blank screen

Discussion in 'Mac Pro' started by dvfd9, Apr 16, 2012.

  1. dvfd9 macrumors newbie

    Joined:
    Apr 16, 2012
    #1
    Have a Mac Pro 1.1 with the 2.66 dual core cpu, and 4GB memory running OSX Lion.

    If I use an unsupported video card - 8800GT 2nd gen on my 1st gen mac pro. Would I get a black screen??

    tested the video card on a PC and it displays fine.

    On the Mac Pro I can hear it boot into OSX and everything just no video output.

    Not familiar with how the EFI works and why I get no video. Hopefully its just the wrong card ordered and not the logic board. Diag_LED Displays POWER ON, GPU DETECTED and Trickle Light is on, nothing else. which is also normal.
     
  2. MacVidCards Suspended

    Joined:
    Nov 17, 2008
    Location:
    Hollywood, CA
    #2
    use the 10.7.3 drivers or ATY_Init and then you can flash card with correct EFI
     

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