Well thanks vvirtho, i know that my CPU is a 450Mhz, and when you underclock it, it reads at 300Mhz.
And when i take the casing of and move the jumpers i can get anything from 500Mhz to 650Mhz
But when i OverClock it to 650Mhz the Computer just crashes after booting into Windows.
So now that it's running at 300Mhz with 300Mb Ram it's running perfectly although i found when i play Cpu intense games it tends to jump a little bit, but all i gotta do is get around to it and install another Fan..

Thanks anyhow for the offer.
cheers
front2back:.