Delete sgconfig from miner.Create new bat and control cards with afterburner cpu 1200 mem 1500 voltage 1100 for 280x
sgminer3s.exe -o stratum+tcp://one.suprnova.cc:2323 -u xxxxx.2 -p x -I 19 -w 256 --thread-concurrency 8193 -g 2
with gpu 1080, mem 1600, volt default 1.2V R9 280x 7.110Mh/s catalyst 14.6 R2