The MacOS X system on Apple computers is unlike that of PC computers, where you can enter the CMOS to modify the settings of the motherboard and CPU, and therefore cannot complete the CPU overclocking settings. You could install XP via Boot Camp and then enter the CMOS for overclocking. But can you overclock an Apple computer under the MacOS X system? Yes, you can! Below, we introduce a powerful CPU overclocking tool for Apple computers under MacOS X – cpu speed accelerator.