Hi guys, I saw a rig on a site called omg it works and it claimed "Adapter 5 – MSI Lightning 7970 @ 1200 / 1500: 28,9 MH/s Sensor 0: Temperature – 76.00 C"
So I went and bought a MSI Radeon 7970 Lightning BE and it arrived this morning, I've set up ethminer and ethproxy but I'm only getting about 17 sometimes 18mh/s on ETH

"
setx GPU_FORCE_64BIT_PTR 0
setx GPU_MAX_HEAP_SIZE 100
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
ethminer.exe -G --opencl -F http://127.0.0.1:4052/miner/17/Lightning --opencl-platform 0 --opencl-device 0 --farm-recheck 500 --cl-global-work 16384 --cl-global-work 8192
pause
"
This was slow before I added those arguments, too, if I'm missing any arguments that would increase my speed let me know
I've tried moving all the clocks around in msi afterburner and also moved the voltages around but nothing seems to make a difference apart from sometimes the miner will flash 20mh/s at me for one line and go back to 18 for a while
I'm thinking maybe I have the wrong drivers or something...
http://puu.sh/nKCal/803e372f51.png
If you can help me fix it I will send you 5$ in btc or mine @ around 32mh/s to a pool of your choice for 12 hours (I'll use my old 770 too)

Thanks in advance