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I tried the 7950 bios on 3 of my Gigabyte cards, one saw a nice improvement, up to 90+ h/s but it fails after a few minutes. The other two only hash for about a minute before crashing. Even adjusting the clocks up/down made no real difference.

Nice find though, good information!! Cool

You sure you had the Hynix memory? The most I can get with my Gigabyte 7950 is 130 Sols because it crashes with any memory clock higher than 1500. I think I run it at 1000/1400.

Pretty sure. I run ethos (linux) so GPUz doesnt do me any good. Ethos reports it as Hynix. Its not the exact model you list, its a Gigabyte Twin Frozr II but I thought Id give it a try anyway. I also planned to try the same bios on my reference Sapphire 7950's but have not made it that far yet.

I think I even went as far as to drop the clocks to 1000/1250 and it still crashed.

Twin Frozr II is usually MSI, not Gigabyte. Maybe try the MSI 280X instead.

I posted a reference 7950 BIOS a few pages back, search for it and try it. Its for a 8950 technically but I think it worked for some other individual's 7950.

Youre right. I dont know why I thought that. *idiot*

I'll try the MSI 280X as well as the reference 8950 and see how they perform. I'll report back later on.
thanks!

The MSI 280X bios seems to be working fine at 1000/1575 clocks pulling 82 h/s on silentarmy v5. Im sure Ill get more once its updated. I did notice that the voltage is 1.2v which is lower than stock (1.25v) but higher than I had it before. Back in the Scrypt mining days I had flashed a bios to thee cards which lowered the voltage to 0.9 or so, this dropped my over all wattage by about 50watts per card and didnt affect the hashrate at all.

I have not tried the 8950 bios yet, that I'll do this evening.

And the 8950 bios works as well, thanks!