So I ran into this problem a few days ago. My two graphic cards were running fine, when all of a sudden, the game crashes. It is not a heat problem, i've checked that, but some research on the internet suggested it was a driver problem. But they were speaking of the CCC 12.4 driver, but now, we already are at CCC 13.11. So I could guess that AMD should have solved this problem. The Game is patched to v3.3.
My system is:
Mobo:ASRock 970 Extreme
CPU:AMD FX 6100
GPU: 2X Radeon HD 7770 (Sapphire Ghz edition and XFX Dual Fan Edition)
Mem: CORSAIR DDR3/1600 2x4GB DIMM Vengeance CL9 DDR3
PSU:Corsair CX Builder series 500W 80+ Bronze ATX12V 2.3
Any help would be appreciated