Originally posted by Oliver
the light turns green then it turns yellow for about one sec. then it turns red and beeps 3 times and the light remains blinking
Yeah that sounds like a ylod. Try buying some thermal paste and put it on your CPU on the motherboard. It might need some more. If that doesn't fix it, you can do a ghetto fix, that I wouldn't recommend. A lot can go wrong. Might just be time to get a new one.