CHeck in the motherboard manual (if you havent got it, download a PDF version from the manufacturers website) and look at what the beep codes mean.

The beep codes vary depending on the fault, think sorta morse code e.g. long beep may mean memory fault, 3 short beep means processor fault etc etc, varies depending on the board

Give it a go, at least you may be able to figure out what is fried. Hopefully it wont be the processor, as thats usually the single most expensive thing to replace