i am facing this problem . i have been trying to solve the problem since 2 weeks but unfortunately i am unable to do .After installing Redon rx 580 5 cards on b250 with 2x 750 watt corsair power supply .my system hangs when starting mining .but works fine with 3 cards  my system start well but when ever i start mining .or i start amd drivers my system hangs. then i need to restart my system . I am using crimson beta relive version of amd drivers .but it cause the same problem with othere drivers. i have updated the bios of b250 .but still having problem .

please any suggestion ? which thing is causing problem ? any idea.