I have this rig in my lab that i use for Virtualisation and Gaming.Something strange happened yesterday while i was using it.The Dual monitors i am running suddenly blacked out i had to press the reset button.Monitors went off but the computer was running and am puzzled.I have reset the Motherboard to its defaults and disabled overclocking.But i need to know what could have caused this.I have recently installed an AMD Radeon HD 6950 and a cooler master 500w smps.