Hey i used to have this crash problems too and i tried pretty much everything they wrote down here, wich helped me for few hours or a day and then started to crash again..
the only thing that realy gave me a day plus without any crashes is going with setting back to default and not touching anything there, but then after a whole day of playing without problem its started to happend again, i looked AGAIN trough the forum for solution and i found someone who said that he limit his Watt intake of the GPU to 1000 Mv and that helped him, so i gave it a shot
and since then my game did not crash for like 3 days except once Wich maybe from other reasons but game is smooth and not crashing since then(for now)
i would offer you to try it too...
i got AMD r9 290 GPU and used the AMD readon setting software im pretty sure you got this too on Nividia panel if you got nividia card( the guy i saw it helped him had nvidia so...)
i also got origin ingame overlay off with that, and set my max fps to the HZ of my monitor(75HZ) but i guess it changing from PC to PC. (i have no idea if its contribute to the no crashes fix since it didn't before, so my guess its not and its cus of the limit of the WAT on the GPU)
so give it a try if you want maybe it'll help hopefully