Thanks for your response.
The BIOS is up to date and working fine. The multiplier on the CPU is currently x14 which is the highest the motherboard shows (is this a problem?). All of the current CPU settings are at their stock settings as I haven't currently done any modifications.
I know that I can modify the FSB, HT voltage and many things like that.
There are 2 fans currently in the system. One is a fan directly above the CPU (which is monitored by the BIOS) and the other is one attached to the case of the system (which always runs full power because it is not monitored by the BIOS - simply plugged into the PSU).
The case is a medium sized one which would be perfected capable of fitting a bigger motherboard (but I don't have the money right now). The PSU is a 450W power supply which seems to cope fine considering I have a decent graphics card fitted (Gigabyte Radeon 4550 512MB). 2GB of 800mhz RAM is fitted to the system, with the possibility of being upgraded to 4GB at some time over the next few months.
Might also benefit you to know that I'm running Windows 7 HP on the system with a 250GB hard drive.
Anything else you'd like to add based on that info?
Many thanks