I have an Intel quad-core based system with an Asus P5Q3 mobo and 6 gigs of ram The system has performed flawlessly for 10 months then yesterday it shutdown randomly. I tried twice to restart -- fans and lights would come on for less than a second and shutdown. Cables all seem properly attached. MOBO has green light so I know power is flowing. Since system won't post, am I right to think the mobo is dead? Any help is appreciated!