Arghhhh, no idea how to do this... I've flashed bios before on these even, but never hex edited a bios file
I have according to GPUz and the lookup function.
2 Sapphire HD 7950 Vapor-X OC Boost Elpida
Sapphire HD 7970 OC Boost w Hynix
2 Sapphire HD 7950 FleX OC Boost w Elipida
PowerColor PCS+ HD 7950 w Elipida
Sapphire HD 7950 Dual-X with Boost w Elipida
Then a Sapphire Vapor-X R9 280X OC with hynix
MSI HD 7970 OC w Hynix mem

Is there a tutorial somewhere.