All the beaps refers to something. It would be mention in the Bios. The beep sounds are audible indication of problem.
If it beeps one time, then A would be the problem, if two times beeps, then B would be the problem, if three times beep, then C would be the problem and so on.
These beeps are all clear indication of telling the user about it's problem. If you don't have a manual, I hope you could find the manual right from the internet.Check what beeps refer to which problem, then you can pin point the problem.