30" Apple Display going black with Mac flashed 7970

Discussion in 'Mac Pro' started by Neutronnn, May 24, 2017.

  1. Neutronnn macrumors newbie

    Joined:
    Feb 11, 2017
    #1
    Hey guys,

    I just flashed a Gigabyte HD7970 reference edition and when I plug in my 30" Apple Cinema Display with the dual-link DVI it boots up with the apple logo and after the progress bar finishes the screen goes black. I tried a lower res. monitor on the DVI and it works fine.

    I can't see why this would happen. The DVI supports dual link (DL) I already scanned the forums but couldn't find any other instances. I'm using a 2009 Mac Pro dual 2.26, 32GB RAM. Thanks in advance:)
     
  2. h9826790 macrumors 604

    h9826790

    Joined:
    Apr 3, 2014
    Location:
    Hong Kong
  3. Neutronnn thread starter macrumors newbie

    Joined:
    Feb 11, 2017
    #3
    Good question. I haven't tried it before the flash. I suppose there are no other reasons why it would do that. Maybe a bad connection or monitor?
     
  4. CapnDavey macrumors 6502

    CapnDavey

    Joined:
    Apr 11, 2015
    #4
    One thing I've learned over the years before you modify anything video cards, out of band radios for ham use etc make sure it works first FYI
     

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