[Demalii]

Ok basically, I uninstalled 178 drivers, restarted, reinstalled 178 drivers, and 1 card runs default 660 core and other is running 399 core.. What is wrong?
I had rivatuner installed when I reinstalled the first time, thought that was the problem so uninstalled rivatuner but.. still messed up =(
I've cleaned the driver files out using driver sweeper, and repeated this process like 3 times other than redownloading the drivers...

but 3dmark06 score reveals both cards running perfectly..

it's like one of the video cards isn't sending it's info to pc, I can't overclock using rivatuner or Evga tool, like nothing it reporting the speeds of the card.

[Mak213]

Are you sure both slots on the mother board run at x16? Some mother boards only 1 slot is x16 while the other slot runs at x8, only half the speed. Which would account for why your 1 card is running at approximately half the speed.

[Demalii]

Well I mean everything was fine until I went about reinstalling the drivers..

It was a driver problem that I solved by uninstalling the video cards from the device manager, then reinstalled and that fixed it. I tried using control panel nvidia display driver removal, then tried using driver sweeper.. eventually I went through the device manager..

thanks for the help mak