Haha Doubt it, tried every fix short of reinstalling windows
Zero crossfire boost (negative in some games) and gpu2 shooting straight to 100% shortly after boot unless gpuz is open... Care to help?
That doesn't sound like a driver issue to me mate. It sounds more like a hardware fault with either one of the cards or one dead pcie slots.
Have you tested both cards one at a time in each slot to try and identify if one card or one slot is faulty?