[samuraichikx]

Hello! Thanks for the help in advanced, I'm completely baffled, and I've been working with computers for years.

I come home tonight to turn on my computer like I always do. It has been working flawlessly for the almost three years that I've had this computer. It gets to the desktop screen and completely freezes on the startup screen, halfway through the startup music. I hold the power button down until it completely turns off and try to boot it back up again. Unfortunately I heard a buzzing noise coming from the computer, and the monitor receives absolutely no signal whatsoever. The power button lights up, the orange motherboard light is on, I even hear the fan starting up. I turn it off again, and upon doing this hear what sounds like a fan sliding against metal. I feared the worst, suspecting a hard drive fail and proceeded to call my sister who thinks that it's either a motherboard failure or a power supply failure. I did some research and fear that it's a CPU failure. Anyone have any guesses?

[Hughv]

Remove the cover and take a look inside, especially at the fans. Turn it on and see if you can spot the source of the noise. I've seen more than one loose heatsink.