I was working on carpet without a grounding strap, the entire time.... and I wonder if I zapped it? I dunno. When I first flipped the psu on, the motherboard lit up for a second, then went dark. No cpu fan spin, nothing. I've checked to make sure the MB cable and cpu cable are tight, I've tried a different power cable with my psu, and I've reseated the ram and cpu. I needs help!