my PCI express is running at x8 instead of x16. I am sure it is a cause of some FPS loss on my 6950. I read the manual and apparently when i got the MB a blank card came with it that was supposed to go in the nonused express slot, i dont have it. its been a year and just now figured this out lol. Is there anything i can do for this issue? cant seem to find a replacement blank card for the slot.
( i am running a single card)
Please post motherboard model, kind of hard to help you without it. Anyway, first thing that comes to mind for me is that I've never heard of a blank card that goes into an unused PCIe slot. I've heard of PCIe risers and manual lane switches but never a blank card. In the event you actually need this blank card and it's the cause of your issue then you'll have to contact the maker of your motherboard to get a replacement blank card.
Also, as long as you're running PCIe 2.0 even at 8x you really aren't losing any significant amount of frames.
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.
I agree with s3anister and amirp, they pulled the old "VGA switch card" on ya, lol! However, the good news is that 8x PCIe 2.0 lanes aren't going to hold back that 6950. I honestly wouldn't bother trying to get a silly replacement switcharoo card. I'm not sure but maybe your Phenom is holding you back in certain situations.