Game keeps crashing often with SP barb

Even after this patch 2.3 when I go to travincal with my frenzy/ww barb to fight the bosses the fps suddenly drops greatly and the screen freezes and crashes to the launcher.
I wonder if its the hydras in travi and my armor fortitudes chilling armor which keeps creating too much stress for the game to handle?
Soon I am thinking of trying to kill ubers but what if my game crashes and I lose all my 9 uber keys?
My pc is new so it should handle everything in the game easy with no fps drops.