US Patent 7325085 Motherboard and control method thereof

A motherboard includes a south-bridge chipset, a north-bridge chipset and a central processor unit (CPU). The south-bridge chipset generates at least control-setting data. The north-bridge chipset has a reset register for controlling the north-bridge chipset to generate a reset signal and a control-set resister for storing the control-setting data generated by the south-bridge chipset. The CPU has a plurality of configuration parameters. The configuration parameters of the CPU are reset in accordance with the reset signal, and the control-setting data is written into the CPU by the north-bridge chipset to set one of the configuration parameters of the CPU.