Mac 7950 on the ground, EFI works in 1,1 Mac Pro but drivers don't

So has any one got this to work with 10.7.5 on a Mac Pro 1,1 ? I have the Sapphire 7950 Mac edition. I installed the drivers but had to boot into safe mode and remove the ATIX4000 kexts to get into OSX seeing as how with the faulty drivers break everything. After reading this thread I am not sure if there is a solution or not.

Best solution is to run 10.8 or 10.9 using brilliant tiamo's boot.efi.

666sheep said:

Best solution is to run 10.8 or 10.9 using brilliant tiamo's boot.efi.

Click to expand...

Alright great! installed 10.9.0 no problem. Driver works no problems, so happy ! had a weird resolution when I booted into 10.9.0 for the first time but adjusted.

GP-SE said:

http://www.mediafire.com/?vw8caf21k3ykqcu

Click to expand...

Very strange, I DL and tried this, got 30 FPS which sounds bizar,...so I tried 'Open GL extensions Viewer' and ran their test.. 285 FPS....what is causing this behavior?

BTW MP 5.1 quad,2.66, 10.10.5- XFX R7900 [AMD 7970]

Hello i would like to use this card in Snow Leopard; do i need to run another GraphicCard inside my MacPro 4.1 (upgraded to 5.1 Hexa) to get this accomplished? Atm i only have a Gt 120 installed. Really would like to upgrade but also continue using SnowLeopard . thanks

I doubt if this card can work in 10.6 at all. Where do you plan to get the driver?

Best snow leopard GPU's are HD5870 and HD6870. Even HD6xxx won't work before 10.6.3 or 10.6.4 update (don't remember which one, but you can easily google it).

I'd like to buy a R9 280 for my MacPro 1.1 running Lion 10.7.5 . Is this still a good idea?
Looking forward flashing the card to get Bootscreens and minimum 3 port. Would these drivers work also for a Gigabyte Windforce r9 280 or are they exclusive for the 7950 HD.

Thank you very much


EDIT: i understand that the Lion 10.7.5 is 32bit on my MP1.1 so it would have problems with the driver package from MacVidCards? To get 7950 HD or R9 280 running properly i would need to boot Lion 10.7.5 in 64Bit mode with a modified kernel as with the TiAmo for 10.8, 10.9 one?
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666sheep said:

Best solution is to run 10.8 or 10.9 using brilliant tiamo's boot.efi.

Click to expand...

Hello , can i run also 10.7.5 with the TiAmo Bootloader to get Lion 10.7.5 in 64Bit for compatibility with 7950 / R9 280?