Bluescreen

Hey all
I seem to be getting this error 0x00000124 (0x0000000000000000, 0xffffe0000be13028, 0x00000000be200000, 0x00000000000c110a) while either gaming or when crossfire has enabled. i've renstalled the pc as well. so its not a driver issue. it only happens if i either turn off crossfire off or turn it back on. does this mean 2nd gpu = dead? as i can run games perfectly fine on single. no issues what ever. or is this a motherboard issue?. or even power supply but i have a new evga 1200w psu.

thank in advance.