Thanks for the guide! I'm trying to get this card up and running on my legacy Z68 board. It boots about 3/4 of the way and then reboots. I've tried all the ATI steps you've recommended and still a no-go. Tried 14,2 (from 12,2), still a no go. The closest I got was a safe mode boot, which got to the user login screen and then it rebooted. I'm trying to come from an nVidia setup. I'm currently using a GTX 960, but have also had a 1070 up and running with the system without an issue. I also did a native boot into Windows, which loaded up w/o a problem, just to make sure the card wasn't a dud. Any suggestions on where to start with further troubleshooting would be greatly appreciated! My OOB RX 580 experience is off to a less than stellar start!