i am running windows 8.1 with current rc2 beta drivers and cannot get more than 4 to be stable, though i have not tried since it have been running for the last 24hrs
Try BAMT, no issues with the 14.6 drivers and stable with 5 cards.
What version of BAMT with the 14.6 drivers? I currently have 1.3 running super stable, and have upgraded my miner to the sgminer 5 beta (so I can mine all the algos). The missing thing for me is the latest at driver, and I was struggling trying to install it myself.
Did you download a version of BAMT with the 14.6 driver or did you install it yourself?
Installed it myself on top of BAMT 1.6.2.