hd 7970 flash questions

[Spasi]

Hello, so i own a sapphire dual-x hd7970. I was so desperate to undervolt it without afterburner because i run multiple operating systems.

Stock bios never worked properly with vbe7 editor. So i downloaded a newest sapphire hd 7970 vapor-x bios i modified that and flashed it.

Vuala the card is undervolted and runs cooler now and the bios added a memory voltage control support. It seems stable.

Btw i checked vrm and memory support beforehand and it matched. I even searched for pcb photos and they looked same. 

Do you guys think that the only ddifference between these cards is just a different cooler?

And is it safe to run it like this in a long term ?

[TheRandomness]

It should be fine.

[Spasi]

Thank you, i am rolling with it if something goes wrong i will post in this thread in case that somebody else will do something similar in the future.