If anybody is looking to get a little more oomph out of your Radeon HD 6950. I have tested on 2 MSI Twin Frozr III PE/OC and i got a pretty substantial upgrade. Just follow instructions and it will work. I did it on my two MSI cards.
I use: PSU : Thermaltake 850Watt MB : ASUS Sabertooth 990FX CPU: FX-8150 @ 4.6Ghz RAM: Corsair Vengeance 16GB 1600Mhz (OC @ 2005Mhz) SSD: 2xCorsair Force 3 120GB HDD: 1TB WD Caviar Graphics Card: 2 X MSI R6950 2GB Twin Frozr III ( Modded to 6970)
More about6950 unlock
Only the older 6950s are able to do this, newer versions have had the inactive components removed iirc.
^ Not necessarily "removed", just laser cut.
I guess i got lucky =D. To be honest, i don't see much of a difference unless i put +20% on power, otherwise, at 0% it's VERY similar to the 6950 +5 or 10% spec.