Solve : Computer beeps 3 times at startup and won't boot?

1.	Solve : Computer beeps 3 times at startup and won't boot?
Answer» Hello, When I turn on my computer it beeps 3 times and then doesn't boot up. It is powered up because I can HEAR it RUNNING. Every once in a while it will turn on beep once and then boot normally. I,ve been told it was the power pack but i've swapped it for a bigger ONE and it does the same thing. The power pack WORKS fine in my other computers. Can anyone please HELP? Thankswhat type of motherboard r u usingThanks I've solved the problem. It was a bad memory stick.

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