Won't boot. Won't even power up. The fans won't turn on and the PSU's own fans won't turn on. I thought it was the PSU that died, but I've replaced it twice. The video card maybe, but I tried two cards that I know work and that didn't help. The harddrive is fairly new, but wouldn't cause this problem anyway. Watch after I replaced the motherboard and CPU, I'll find out the power button on the case doesn't work anymore, LOL.