Greetings! Firstly, my apologies for computer ignorance and my most sincere gratitude for your attention and patience. My computer has been stable for around 2 years until last night it started freezing and restarting by itself, usually when there's a lot of applications running, or I'm running a game that requires a lot of memory and heats up my pc. For the record however, it has froze on BIOS setup too, which confuses me. I figured that showing the system summary plus speedfan and additional info would help understanding so here: i138.photobucket.com/albums/q279/TheDigitalKitty/spec.jpg i138.photobucket.com/albums/q279/TheDigitalKitty/fan.jpg Temp1 stays at 45-50ºC without any major application running and goes up to 60-65ºC when running World of Warcraft, I assume that's Mainboard temperature. Because I'm afraid of overheat (Had past problems with a different computer because it was dusty - And yes, I'm keeping this one clean), I have an external mini-fan running and turned towards the tower to cool it a bit. My computer is apparently virus and spyware free (Ran Avira and Spybot) and I have most my drivers updated according to DriverMax. Let me know what additional information I can and should provide, I'd like to know if my PC is shutting down due to overheat and if not, what would you advice me to check?