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plentyoftimeto69

macrumors member
Original poster
Jul 15, 2016
86
19
Tampa
Is it possible to flash an Apple bios onto a non-Apple Nvidia card? I've got an old 660 in my Mac Pro 2,1 and I'd like some boot screen action if possible.
 
I made a ROM for the GTX 660 based on the 680 EFI some time ago, but it kept crashing as soon as the OS X drivers took over (boot screens worked perfectly fine), not sure why.
Didn't investigate it any further since I moved the GPU to my old hackintosh.
 
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Damn, I'll probably just leave it alone then. Are there any cheap, Apple-flashed cards that are recommended? I'm not gaming on this box or anything. Usually doing audio recording or stuff for work, so I really only need a smooth GUI experience.
 
You have to be careful because some cards like the GT120 and 8800GT have two versions - either 32-bit EFI or 64-bit EFI. And the 64-bit EFI ones won't work in your old Mac.

The GT120 seems to be the go-to card that people recommend for cheap price and having boot screens. So if you can find a 32-bit EFI GT120 card, that would do.

I have a GT120 in one of my Mac Pros and it does 3440x1440 just fine for non-graphics related tasks.
 
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I used my old geforce gtx680 after buying the correct label from amazon. ill flash it down the road when it stops working as is.
 
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