Well at least once per day my PC crashes while in a game but it can often be as many times as 10. It either freezes or full on shuts down. Sometimes it will shut down first thing in the morning but then continue to play for hours. Other times it will shut down and if the game is re opened it will just keep shutting down until a few hours have passed. Temps are fine and this happens on graphically intensive games and also games that are years old.