I am having issues with under volting and the gpu index changing every restart. I am using 7 rx 580's 3 are xfx and 4 are rog strix(does this have anything to due with my problem?). I am trying to under volt in the start.bat command line, and every restart of my pc it seems as though the index is changing. Is there a way to permanently set the gpu index? Is it possible to program under volts in the bios? The rog strix cards seem to want to eat around 200w when dual mining. I was able to set up the 3 xfx cards dual mining at 130w. Please Help, Thank you.