Patent ID: 7152013

Claim:
A heat dissipating method applicable to a computer system having a timing signaling mechanism, so as to allow the timing signaling mechanism to cooperate with a basic input output system (BIOS) of the computer system to actuate a heat dissipating unit for reducing a temperature of each of hardware devices of the computer system according to the temperature of each of the hardware devices and improve heat dissipating and operation efficiencies of the computer system, the heat dissipating method comprising the steps of: (1) providing the computer system with a temperature sensing unit for sensing the temperature of each of the hardware devices; (2) performing a process of setting a dissipating temperature operating mode in the basic input output system, wherein the dissipating temperature operating mode represents different heat dissipating efficiencies generated by the heat dissipating units of the hardware devices within different temperature ranges; and (3) regularly transmitting a periodic signal to the basic input output system via the timing signaling mechanism of the computer system; and (4) regularly sensing the temperature of each of the hardware devices via the temperature sensing unit, obtaining a pulse width modulation (PWM) control interval value range corresponding to the sensed temperature and an actual PWM control value of the heat dissipating unit, and determining whether the actual PWM control value is within the PWM control interval value range corresponding to the sensed temperature; if yes, repeating step (3); if no, modifying the actual PWM control value according to the dissipating temperature operating mode of the basic input output system, so as to allow the heat dissipating unit of each of the hardware devices to perform a heat dissipation process by the actual PWM control value according to the temperature sensed by the temperature sensing unit and the dissipating temperature operating mode set in the basic input output system, wherein the heat dissipation process allows the heat dissipating units of the hardware devices of the computer system to achieve specific operating intensity within a specific temperature range.