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zozomester

macrumors 6502
Original poster
Apr 26, 2017
372
269
Hungary
Who has the experience that the reference GTX 770 can be flashed with the GTX 680 Mac edition Rom?
In principle, the structure of the two GPUs is the same....
Thank!
 

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Not likely to work. I did a resistor mod to a reference GTX 770 to change the device ID to a GTX 680 and flashed it with the GTX 680 Mac edition ROM. I was able to boot into High Sierra, but any sort of stress caused the card to crash hard.

The real solution is to build a custom ROM from the PC VBIOS ROM and the EFI piece from the Mac Edition GTX 680. Been there, done that.
 
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