I received a computer from a friend who just bought a laptop. Its an HP, It worked great for about 2 weeks, and now when i turn it on It was just beeping. I removed one stick of ram and now it doesnt beep anymore but I get no video at all. It doesnt beep like its starting up or anything. Ive tried new video cards, new hard drives, new monitor. Ive even tried a bare bones start up to try and access the bios. STILL NOTHING. Can anyone please help????????????????