Why Isn't My Processor the Right Speed?
An often-misunderstood property of the system clock is its effect on processor speed. You see, a thing called a "CPU Multiplier" determines the speed of a processor in MHz. If you take the multiplier of the processor and multiply it by the system clock speed you get the speed of your processor. Your CPU has its multiplier hard wired in to the chip, and this *normally* cannot be changed. Your system clock is another matter. It can be set on your motherboard by using BIOS or a set of switches on the board itself. This is very important. Most motherboards do not automatically set the system clock for you when you install a new processor. We often get reports from new system builders saying that they received the wrong speed processor when in actuality; the new builder forgot to set the system clock to the right speed for their processor. For a list of standard system clock speeds please see part IV of this article.