Patent ID: 8245075

Claim:
A method for overclocking a central processing unit of a computer motherboard, wherein the computer motherboard comprises the central processing unit (CPU), a BIOS, and a chipset, the method comprising steps of: (A) setting a second frequency of front side bus (FSB) by an operating interface of the BIOS; (B) determining FSB frequency Fn at each of a plurality of stages according to a difference between a first frequency and the second frequency, the stages totaling N, and N denoting positive integers, wherein n=1, 2, . . . , N, wherein N is a positive integer; (C) loading the CPU with an operating system by booting the CPU at the first frequency of FSB, sending an interruption signal to the CPU from the chipset at predetermined intervals upon completion of the loading of the operating system so as to allow the BIOS to gain control over the CPU, and executing step (D) by the CPU on each of a plurality of occasions of interruption until the FSB frequency of the CPU is changed to the second frequency or the BIOS can not gain control over the CPU, the occasions of interruption totaling N; and (D) executing the BIOS by the CPU on the nth occasion of interruption such that the CPU operates at the FSB frequency Fn, and allowing the operating system to resume control over the CPU upon completion of the executing the BIOS.