Smart overclocking method conducted in basic input/output system (BIOS) of computer device

The present invention provides a smart overclocking method for a computer device with a multi-core CPU and abasic input/output system (BIOS) where an overclocking database is stored therein, which comprises: booting the computer device, logging in the BIOS and performing an overclocking function; acquiring overclocking parameters from the overclocking database; conducting adjustment/settlement of the clock rate and the voltage of the multi-core CPU based on the overclocking parameters; conducting a Heavy Load Testing (HLT) on the multi-core CPU; reading out working results data of the multi-core CPU and determining whether any of them have exceeded limits. Hence, overclocking can be completed within 10 min. or less, without causing shut down of the computer device, and without causing working temperature or working voltage of multi-core CPU to be higher than 90° C. or 1500 mV during Heavy Load Testing (HLT).