X
-I 18 --gpu-engine 1150 --gpu-memclock 1500 -g 2 -w 256 --lookup-gap 2 --thread-concurrency 8192
That gives me 3.345 Mh/s running in closed case at 70 to 72F
I think I read somewhere that if you put i=18 to 280x you will fry them.
( same as if you put more then i=20 to 290 cards )
everybody can correct me if I'm wrong.