This indicates a hardware problem, and to analyse what exactly is causing it requires (1) knowing how many beeps, (2) the stage that the beeps occur and (3) the tyoe if beeps (long, short etc).

Unfortunately, it also requires some knowledge of the particular motherboard because each manufacturer may use different beep sequences. As an example of a motherboard that has been used by HP (not the only one), here's a link describing what beep codes might indicate:

http://www.neoseeker.com/Hardware/faqs/kb/12,13.html

If we get past that, there's then the matter of repairing/changing hardware.

If the computer is getting old, might be time to consider replacing it.

That's a relief for you then - the easiest hardware to fix.