Adding GOP support to XFX 7970

[MintyZen]

I have an XFX 7970 Core Edition (product link) to which I'd like to add GOP support for Windows 8 fast boot and secure boot.

Googling around, I found a forum discussing doing just such a thing, by taking the video bios of a card with GOP support and copying the UEFI partition to the corresponding location of the one of a card without.
The procedure is explained in more detail here.

The issue I am facing is that I do not know which GOP enabled video bios to use as a source: as my card has stock voltages (925Mhz core frequency and 1375Mhz memory frequency), can I assume it is going to be compatible with a reference board video bios? There are warnings about XFX having come up with a different revision of the board to cut costs, and my card fits the description - the single DVI connector is purple.

So I guess the question becomes, how specific is the video bios to a given card? Would I be risking bricking my 7970 if I were to use the UEFI part of a reference card's video bios to mod mine?

I have posted in the original thread with a few more details about the card but received no answer so far; does anyone here have any experience attempting something similar?

 

[3DVagabond]

That's what the bios switch is for. If yo flash the bios and it won't boot you move the switch to the 2nd position.

 

[footballrunner800]

I used an Msi bios that had GOP support on my reference sapphire 7970. I didn't see any difference from before using CSM to enable fast and secure boot. Regarding your question about the cards bios, I've tried flashing custom 7970 bios on my card and depending on the model they've gone from freezing and artifacting while playing video games to not booting. Good thing is I would just flip the bios switch and then flash it back.