I have been having nothing but issues the last couple days with my new 590. It all started after a recent windows update. at first it was the cards fans were not coming on in games even while at 81c. had to resort to afterburner to engage fans. now i have ran Fur multiple times and am unable to see any clock speeds even close to what i should be. I recently came back from nividia but an extremely tempted to go back. card worked great first 2 days now on the 4th it is running very poorly. P.S. i did go through and delete all nividia drivers manually.
