Opossum

Hi, I have a problem with naval action. Sometimes when I play, my pc crash without any reasons, not bsod or other things, just a sudden shutdown. In first, I've started to think it's because an hardware overheating, so I blow my unit with air compressor and some shitty stuff get out of my tower. when I had finished, I've played some other game with high graphical requierement like Dying light and some other crap but not crash occurs while playing, I dont understand this situation, thanks for help and sorry for my english, it's not my native language.