I have a spare comp and it stopped working suddely. When you hit the power button, it powers up like it's trying to boot, but nothing happens. The lights blink on the cd roms, the hd light stays solid, and bizzare part is the cpu fan just goes right away into super-high speed mode. It starts blowing air like a mofo. There's no output to the monitor. What died? I just bought a new chip for it about a month ago and it was working fine til recently.