So you are using Vega, right? How about your PSU wattage and efficiency? Yeah, devices driver would be our problems with Windows. Don't forget to patch pixel clock limit using atikmdag-patcher, it will take care of driver signature for Windows.
hmm thats could be worth a try with the patcher...thanks i´ll try later.
i have 2 1200watts platin rated psus/rig...i know overkill
i have rx 580´s and vegas mixed and want to keep rigs as big as possible because of efficiency(power for system only), vegas(56 with 64bios) draws around 140watts from the wall and doing 1430hs (980coreclock/1150memclock)