I have XFX Pro Duo graphic card
The computer is instable when I play games. The game crashes and sometimes freezes after a while, specially Assassins Creed Unity, Assassins Creed Syndicate and Rise of the Tomb Raider The computers sometimes freeze and is locked when I am looking at a movie file (not a DVD ore blue ray disk).
I have had Crossfire with two AMD 270X and had no problems before with the system.
I have the latest driver from AMD and the latest Crimson software version 16.5.3.