So i recently did a fresh install of windows 7 pro 64bit... I have an HD6950 with shaders unlocked and i just installed a little HD5450 in my second PCIE slot for my second two monitors.. I have ran an old nvidia 6800gt before like this and not had any problems other than the nvidia card running out of vram from aero effects... anyways since i have done this when i open sapphire trixx and go the overclock tab i have no numbers and no moveable sliders... Is it not possible to overclock one AMD card while another is installed?? im really confused by this?