first question is all ur drivers up to date, as well as ur bios. did u defrag ur hard-drive and scandisk it for errors after ur fresh install.
also after doing all the above if u havent, uninstall your drivers, than use driversweeper to remove all traces of all drivers. than install latest drivers.
after u do all the above. come back and tell us the results.
All drivers for gpu are up to date, as for bios, not sure. I'd assume you go to your mobo's website to update that, yes? Ill defrag, and scandisk right now and get back to you. thanks for the help!