EFI Boot Win81 with non-EFI vid card

Discussion in 'Windows, Linux & Others on the Mac' started by Surrat, Jan 31, 2015.

  1. Surrat macrumors 6502

    Surrat

    Joined:
    Jun 20, 2014
    Location:
    United States
    #1
    As an experiment, I installed windows 8.1 on my mac pro 5,1 in EFI mode, its working perfectly and I have had no problems at all. I used the old ATI 5770 mac card to run this install since its an EFI card.

    When I tried putting my unflashed PC GTX 770 card in, win81 just goes to a black screen. I'm assuming it cant detect the video card.

    Anybody know a work around to get my PC GTX 770 working with win81pro in EFI boot mode?
     
  2. yjchua95 macrumors 604

    Joined:
    Apr 23, 2011
    Location:
    GVA, KUL, MEL (current), ZQN
    #2
    Flash the GTX 770 I guess.
     

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