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. https://www.asus.com/Graphics-Cards/EAH57702DIS1GD5V2/ 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. http://forum.netkas.org/index.php/topic,692.0.html I can't find the EFI file referenced to download anywhere; 5770_vervet_netkas.efi 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.