Unlock your 6950 to a 6970 lol! That is if you can
Also I dont think you need a fake video card in there to make it work. It seems counter intuitive to me, with a fake card it might read its running 2 cards, and would operate both cards at 8x instead of 1 at 16x. I have an ASUS MOBO too love it, I didnt get a fake cad with mine... Although it reads my ram at a slower speed on the bios tool, but it is operating at 1600MHZ I checked on windows. I think your Card is running fine. But wait and see what others say.