MacPro 2,1 Needs Help with 5770 EFI Flash

Discussion in 'Mac Pro' started by kiresp, Dec 11, 2015.

  1. kiresp macrumors newbie

    Dec 2, 2013
    Hi Guys,

    I have El Capitan working almost perfectly on a MacPro 2,1 except my Video Card.
    I can boot with the 7300 and it's slow as crap, I move the DVI cable to the ASUS 5770 in bottom slot and it works fine from there.

    The card is recognised as ATI 5000 series, I can't get EFI boot selector, and no login screen if I boot with DVI connected to 5770. I need to boot with monitor attached to 7300, then move it to the 5770. I found a netkas forum post on flashing this card with EFI+BIOS using some hacking around to make your own image and flash back to the card.,692.0.html

    I can't find the EFI file referenced to download anywhere;


    Anyone done this before, where can I get the EFI ?
    I've tried several times to register to netkas forums without any luck.

    Ideally I'd get this 5770 flashed, then chuck out the 7300 so I can move onto more interesting things like the CPU upgrade and bluetooth/wifi module.

    Thanks for your help.
  2. VAGDesign macrumors 6502


    Feb 1, 2014
  3. bccalderoni macrumors newbie

    Jun 30, 2010
    Did you ever find that file? I'm having the same issue but with a sapphire card.

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