ok i had a z87-d3hp with a geforce gtx 660 2 gig i went and bought a z87-pro with gtx 660ti and when i hooked it all up before it boots i get a warning thing bout my cpu fan and cpu over heating then i ignore the problem and it boots normally eveything works fine, now before i made this change in SL a game i play i was getting 90 fps, now im getting 20 fps why is that? i downloaded and installed all the stuff from the cd that came with the motherboard and then updated it, then went to nvidia site and downloaded the newest version driver for the 660 ti and still have this issue can it be my cpu? and why is that giving me problems now its no older then 3 months i never over clocked it its a i5 4570s