Second R9 280X lowering both cards hashrates
I have Asus r9 280x dc2t.It gives 750 hash (stable).
Today bought a new Asus r9 280x dc2t.
But when start mining both cards get 500-550 khash.
I use smos linux in addition.
What is the problem?
What do you recommend for me?
Does anybody has the same issue?
Sorry for my bad English Thank you...