Hey guys,
I'm new to mining and I just built a mining/gaming rig.
I have 4 MSI RX 580 TWIN FROZER gaming x 8gb in the rig.
I have just started mining Ethereum with the latest Ethminer, so far I'm only getting 17mh/s from each card and a total of around 68mh/s

I am running win 10 64bit with standard AMD Radeon adrenaline drivers.
Any help you guys can give me to increase my hash and best mining tools to help this Noob would be great?
Thanks people's.