So while playing certain games my computer screen will shut down and the fans will slow down, but all the decorative LED's inside the computer stay on. After about 20-30 seconds the computer boots itself back up. It has crashed while playing Black Ops 3, SMITE, and GTA V, but has not crashed while playing League of Legends or Dark Souls 2 (these are the games I've tried to play since this problem started.) Thanks in advance for any assistance.