Hello all, I was the owner of a GTX 780 3Gb that was flashed for use in Mac Pro's. These are floating around on eBay with people marking them up for ridiculous prices. I was lucky and found one for a reasonable price. I was able to dump the EFI off the card after doing some digging around (the creator has some kind of flash dump protection on it, it crashed my mac pro completely when I tried to dump the ROM at first). I had to do a lot of trial and error to get this rom off the card, I hope it's worth it. I'd like to donate this ROM to the community to people that are hurting for a better graphics card with EFI support. The ROM is not made by MVC as far as I am aware. The ROM revision says "phx3.systems". After inspecting the card itself, I see nothing that suggests that the card had the flash ROM removed and replaced with a larger one. Therefore, it should work with normal 780's. The ROM is for an EVGA ACX SC 3GB card but it was working fine on an MSI "N780 TF 3GD5/OC" card. You should be able to flash it using the latest version of nvflash using the command "nvflash64 romname.rom". I really hope this helps at least some of you. Let me know your results. Thanks, Jeffrey Update: David from MVC emailed me and requested I remove the ROM. I will comply with his request as I respect him and his company. Update again: Turns out it is a pirated MVC ROM which has been modified to seem like it was made by someone else. It's a good thing that David emailed me very quickly reguarding this so I would have an opportunity to take this down. --- Post Merged, Jul 16, 2018 --- Also quick note for David P. and the team at MacVidCards. This release isn't intended to take revenue from you all. I greatly respect your team's work and I am a customer of you guys as a result. This ROM wasn't even made by you all. My goal is to discourage people from using sketchy eBay sellers who mark up "Mac Video Cards" that they stole the ROM off of themselves. I'm sure you guys don't really sell many 780's anymore anyway.