Weird issue with 7 470s, they're all detected on windows and msiafterburner, no overclocks yet.
Driver 16.9.2 patched. Psu 1600w, motherboard asrock pro btc 2. Already mined with 7 cards to test before, one of them was a R9 Fury and no issues.
It starts detecting them and says "AMD cards available 7"

But then it says "total cards: 6"

And only six cards are mining.
Anyone knows why and how to fix this?
Solved, the problem was the gpu numbers on claymore..
I didn't update it and I had it set for 6 gpus. When you don't add the gpu number it just doesn't mine, now I'm mining with the 7 cards just fine.