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There are two ways of achieving OC with CPU’s. One way is to increase the front side bus speed (FSB) that the CPU operates at. This is by far where you will see the biggest gain in performance when it comes to clockspeed. To help understand this I will work with even numbers to keep things simple. For example if I take a 600MHz CPU with multiplier settings at 6x and a FSB of 100 I am operating at stock speed. However bumping my FSB by 2 giving me a 6x102 setting would get me a 612MHz operating speed. This opens up the bandwidth that my CPU will operate from. The downfall of FSB over-clocking is that it will also affect the PCI ISA and memory operating range as everything on the motherboard will operate at the higher FSB setting. This can adversely affect the operation of your peripheral cards and memory most notably being incapable of booting your computer. If you reach this point simply back off the FSB settings. The second way of increasing the operating speed of you’re CPU is to increase the multiplier setting. This will increase the operating MHz of the CPU but will not have any affect on the band-width of the CPU which is why you will not see instant gains Using the example from above, 6 x 100 = 600MHz. To increase the multiplier, simply change the settings from 6 to 6.5 or more. The results will look like this, 6.5 x 100 = 650MHz. The best part of this type of OC is that it doesn’t affect the bus speeds of the peripheral cards or memory. This will affect the CPU operating speed only. To perform the changes I have outlined above you will need a little information before you can start. First you will need to know what motherboard and CPU you have in you’re computer. Different motherboards and CPU’s have different characteristics and will have to be changed accordingly. Once you know what type of motherboard you have you will need to find out how to change the multiplier settings and FSB settings. There are three different ways different manufacturers have done this. There are DIP switches, which are small switches that change the voltage path to affect the settings. Jumper settings are simply small conductive blocks that connect 2 or more contacts on the motherboard to affect the settings. The last and easiest is BIOS settings, these are simply command prompts located in the BIOS settings that will affect the settings. Next
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