I am running 3x Sapphire RX 480 8GB, all very stable at 27.3 MH/s each ETH & 546 MH/s DCR ~153w @ each card and temperature is 77C each card.
http://image.prntscr.com/image/4df4bc0a4a1b4c558abdca96f0ffa336.jpgI will try get a bit more out of them, but this setting have been running without any problem for 4 days straight now. (Switched pool about 3 hours ago)
I am running them at 1100 Core clock and 2200 Memory clock, Windows 10, Crimson 16.7.1.
Does anyone know how many H/s you get from each card on Cryptonight mining with this RX 480 Cards? And what software and settings do you have?