Originally Posted by Ketxxx
Somethings deffinately not right.. could be your PSU is on its way out, a capacitor on one of your cards\mobo is starting to die, or could simply be the driver is slightly corrupt. In the latter case use something like drivercleaner to remove ALL traces of the drivers, restart in safe mode, run driver cleaner again, restart normally then reinstall driver.
I have used the crossfire optimization steps to install drivers pretty much since it was posted on TPU forums. I installed the 8.7 drivers yesterday and samething. One card will work fine but crossfire play sucks. Since I have just the 2nd connectors connected with the bridge GRID does run alot smoother but that clicking/reel sound starts and it will just freeze for a few seconds....then I hit the wall!