Have you tried lowering the voltage bit by bit till its unstable, I have ASUS cards that come with 1.2VDDC lowering that to the 1.087VDDC to 1.1VDDC range doesn't affect my stability and lowers my temps by a decent amount, 6c for my hottest 15c for my coolest.
Well atm my whole system is unstable as soon as i put the intensity above 11 so i think undervolting would make it too unstable?
And when it's at 11 the cards are only getting 260kh/'s each. It should be alot higher shouldn't it?
thnx alot for all the answers moneymorpheus but i really wouldn't know if they're on seperate lines since my local computer store put all the pieces together for me..