Computer starts up for a couple seconds but then shuts down and the monitor screen is black.I tried the video card on a computer that works and the screen was black and tried a new video card that worked in both system. I also have a new power supply 520 watt and on 110 volt. I tried it With only the essantials hardwares in it and it keeps shuting down(if it helps i can hear the bips when ram is not installed. I thinking the video card overheated and might have also broke either the cpu or the motherboard. Any clues on how to be sure of that i dont want to garge any good hardware

Has it always done this? What hardware changes were recently done? "The great mass of people ... will more easily fall victim to a big lie than to a small one" A.H

thanx for replying. After a long nite i realized a pin was broken on my cpu fan and was not sitting well. Bought a new one and it s running like new :)