Use Claymore's miner: https://bitcointalksearch.org/topic/claymores-dual-ethereum-amdnvidia-gpu-miner-v150-windowslinux-1433925
.bat file will be:
setx GPU_FORCE_64BIT_PTR 0
setx GPU_MAX_HEAP_SIZE 100
setx GPU_USE_SYNC_OBJECTS 1
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_SINGLE_ALLOC_PERCENT 100
EthDcrMiner64.exe -epool eu1.ethermine.org:4444 -ewal
all of this is from the ethermine.org page: https://ethermine.org/
ETA: pick the server closest to you
North America (East): us1.ethermine.org:4444 or us1.ethermine.org:14444
North America (West): us2.ethermine.org:4444 or us2.ethermine.org:14444
Europe (France): eu1.ethermine.org:4444 or eu1.ethermine.org:14444
Europe (Germany): eu2.ethermine.org:4444 or eu2.ethermine.org:14444
Asia: asia1.ethermine.org:4444 or asia1.ethermine.org:14444