I have a Mac Pro 1,1 running OS X 10.6.8 and Windows 7. The firmware is flashed to 2,1. I've had an XFX 6870 card in it since 2011, no bootscreen, but it died this year. Now I am back to using the stock GT 7300.
Fortunately, the 6870 card is under warranty! XFX is unsure whether they have any in stock, so I have offered to research other possibilities.
I am pretty sure that for 10.6.8 that 6870 is the best option, without a bootscreen. I would be willing to upgrade to 10.11.6, but it would be nice if it was possible to run 10.6.8 on the GPU without acceleration anyway. I read one report of that here:
www.tonymacx86.com
So my questions are:
1) which cards will work without flashing under 10.11.6?
2) which cards can be flashed for 10.11.6 (presumably a subset of #1)?
3) which cards can I use for a bootscreen?
If you don't know whether or not XFX made the card, that's OK, I can Google the model. I have read many threads and pages on this topic, including collated data in wikis and tables and sticky posts, but I still can't seem to get a reliable list, beyond basically 7950, 7970, R9 280X from the macvidcards FAQ. And someone who got a GTX 980 Ti to work. I think XFX doesn't make NVidia cards anymore but I'm not 100% sure about that. Regardless, information about NVidia cards could still be useful for other 1,1 owners. Finally, it's also unclear to me where driver support ends in 10.11.6 - cards that only work under 10.12+ are no good here.
Thank you very much for your help.
Fortunately, the 6870 card is under warranty! XFX is unsure whether they have any in stock, so I have offered to research other possibilities.
I am pretty sure that for 10.6.8 that 6870 is the best option, without a bootscreen. I would be willing to upgrade to 10.11.6, but it would be nice if it was possible to run 10.6.8 on the GPU without acceleration anyway. I read one report of that here:
R9-280X 6GB Successful Boot on Mavericks & Snow Leopard
Radeon R9-280X 6GB GA-x58a-ud3r 24 GB Ram i7 940 4K LG 40UB8000 1. I successfully upgraded from Snow Leopard to Mavericks 10.9.5 on new SSD. No problem w/ Mavericks. 2. Am booting successfully into previous Snow Leopard drive on the R9-280X 6GB, but my only resolution choice is 1024...
So my questions are:
1) which cards will work without flashing under 10.11.6?
2) which cards can be flashed for 10.11.6 (presumably a subset of #1)?
3) which cards can I use for a bootscreen?
If you don't know whether or not XFX made the card, that's OK, I can Google the model. I have read many threads and pages on this topic, including collated data in wikis and tables and sticky posts, but I still can't seem to get a reliable list, beyond basically 7950, 7970, R9 280X from the macvidcards FAQ. And someone who got a GTX 980 Ti to work. I think XFX doesn't make NVidia cards anymore but I'm not 100% sure about that. Regardless, information about NVidia cards could still be useful for other 1,1 owners. Finally, it's also unclear to me where driver support ends in 10.11.6 - cards that only work under 10.12+ are no good here.
Thank you very much for your help.
