Your Pentium 4 sucks and my Athlon 1.6 beats the **** out of it, and I bet I paid less money too.

Anyways, yeah, sure, try overclocking it a little. Just make sure your temperatures are good (under 55 C) and that you're using sufficient cooling.

2400 is just a theoretical number..you'd never get that high unless you were using Freon cooling and even then (BTW that costs hundreds of dollars if not thousands). My board says it can run at 2800mhz, but my 1.4 Athlon won't even come close to that speed.