Just to let you guys know, I'm testing AMD Adrenalin Drivers version 18.4.1 on my 5x rx580 rig and it's randomly doing 0mh/s and recovering to 31mh/s, even with increased voltage. Also I haven't noticed any performance improvement so, I recommend that everyone use the latest WHQL drivers with version 18.2.1. Those still provide the best performance and stability. Avoid upgrading to windows 1803 for now