On latest systems, the buses default frequency will be 100 MHz for a 400MHz FSB and 133MHz for a 533MHz FSB. Some motherboards allow increase the bus speeds, forcing the processor to work at a higher frequency.

If having an overclocking-friendly motherboard, work in the BIOS setup. Few produces such as SOYO, ABIT, and ASUS, have a specific page in the BIOS setup menu for overclocking and performance tweaking of system.

For an example of bus overclocking, a Pentium 4 2.4GHz system runs on a 133MHz bus with a 533MHz FSB. To get to 2.4GHz, the 133MHz is set with a multiplier of 18x. The multiplier is blocked. Increasing the bus speed, while custody the multiplier similar, forces the CPU to job at higher incidence.

While overclocking the FSB, make sure that the PCI bus or the AGP bus is not pressed gently. Whether overclocking the FSB individually depends on the ability of the motherboard.

It’s useful to use a benchmarking program like Bapco’s SYSmark or FutureMark.com’s PCMark, to check the output of the work. Do run the benchmark before starting overclocking test to get a baseline, and then benchmark every increment in the overclock.

It’s also handy to run a utility that checks the heat of the processor. Intel offers 1 for free. It’s very crucial to understand that, by overclocking, one can increase the heat that produced form the processor and can easily harm the processor by pushing it harder.