MP 1,1-5,1 Question about installing PC video card in 3,1

[serpico007]

Hey everyone, been reading here for the past several weeks about video cards for the cMP. I recently picked up a 3,1 and read that the GTX 680 or GTX 770 are the best for this model.

My problem is I only find PC versions of these cards on the local used market. I'm not comfortable with the flashing process so what would happen if I just installed these cards without flashing? Would I just not get the boot screen or would it not work at all until flashed? Thanks.

 

[tsialex]

Hey everyone, been reading here for the past several weeks about video cards for the cMP. I recently picked up a 3,1 and read that the GTX 680 or GTX 770 are the best for this model.

My problem is I only find PC versions of these cards on the local used market. I'm not comfortable with the flashing process so what would happen if I just installed these cards without flashing? Would I just not get the boot screen or would it not work at all until flashed? Thanks.

No pre-boot configuration support only, GPU works after macOS loads the drivers.

 

[serpico007]

Thanks @tsialex you've been a great support in these forums. Now time for me to go buy a video card!

 

[tsialex]

Thanks @tsialex you've been a great support in these forums. Now time for me to go buy a video card!

Buy a GTX 680, it's a 5' job with Windows to flash with eVGA GTX 680 Mac Edition EFI. Use the list and instructions below to know what make/model to buy.

Confirmed and Possible Flashable GTX680 Models

Step-by-Step Instructions for Flashing GTX680