MIKX is correct, I have the Dual-X with two fans, but thanks for the offer! I think its good when anyone can help another out, and offers to do so. But, alas I do not have the Tri-fan Sapphire, although the display ports are the same, with the two DVI and one HDMI and Display port. Mine is laid out the same, as for the ports on the back of that card.
I did find that I can boot Mojave with my ATI RADEON HD5770 stock video card after installing with the Metal capable card. This made it relatively easy to swap cards and boot into Recovery mode with the CMD R keys on boot, then disable SIP. I did the ROM dump again after this, and then used the Ntekas script to write the BIOS for the ROM. It is 128kb, and now I have to find a way to falsh it into my card, as I do not have WIndows installed, and the Zeus program doesn't play well in Mojave. I even tried to install Lion 10.7.5 onto a spare drive, but the Mojave said it was too new to run the Lion install. So, I have to create a boot drive with Windows 7, and then run the AtiFlash program.
Charlie
P.S. - I had the computer freeze every time I tried to download and install WinOnX 64 from the app store. I don't know what's up with that app, but even when I type it into the app store search, when it comes up the Mac freezes and I have to hold the power key in for 6 seconds to shut down. The download never finished from the cloud, and under Launchpad the line is still there, even though i drug the app to the trash can. If I do not search the app, I can browse the App Store freely. Very strange...
Charlie