How to flash GPU bios?

[lixe]

Hey there,

 

I just found an UEFI-bios for my old Sapphire 7950 GPU. The problem is, how do I get it flashed since I don’t have another pc near me. As it seems I need windows for flashing. Is it possible/safe to flash a gpu using passthrough in a windows vm? Or do I have to start an bare metal windows installation on my computer for flashing?

Edited February 2, 2019 by lixe

[TyantA]

Sorry I don't have the answer you're after but... I'm curious where you found the bios? I have an XFX Double D 7950 that doesn't have a UEFI compatible bios nor have I found one elsewhere. 

[Frank1940]

You might see if there is a Linux version of the Flashing Software.   You might then be able to use a DVD (or CD) bootable Linux Distribution to boot your server.  

[lixe]

I gave my item model number at techpowerup a try and found this https://www.techpowerup.com/vgabios/164761/164761 .

 

It seems as flashing in a vm should work, but the atiflash win software crashed my vm after I started it. So I created an dos usb stick with atiflash. Worked flawlessly, but UEFI doesn’t work nevertheless. Without defining a rom my windows vm (seabios) showed UEFI enabled in GPU-Z, but my mac vm and also windows UEFI won’t show a picture even with a rom file. Unraid was booted in UEFI mode of course... I also tried the GPU as secondary and used an old gpu as primary.

 

So I guess sadly I won’t get UEFI on my old 7950

 

EDIT: HA! Found one  this one is working for me so far https://www.techpowerup.com/vgabios/137271/powercolor-hd7950-3072-121105

 

Tried it in a vm first and flashed it some minutes ago using atiflash in dos

Edited February 3, 2019 by lixe

[TyantA]

Nice. I'm frustrated that XFX doesn't have a bois available. I went through all of them for my card. That said, I got my VM to passthrough using seabios & setting to Q35.