Heat dissipation method and device for computer system, equipment and medium

The invention discloses a heat dissipation method for a computer system. The method is applied to a BMC (Baseboard Management Controller) in a target computer system and comprises the following stepsof detecting a temperature value of the target computer system by utilizing a bus bar, wherein the bus bar is a wire cable which is inserted into a PCBA in the target computer system in advance, and obtaining a temperature value, and adjusting the rotating speed of a fan in the target computer system according to the temperature value so as to cool the target computer system. Obviously, compared with the prior art, according to the method, the current flowing through the PCBA is used for detecting the temperature value of the target computer system, the influence of the temperature of the PCBAboard on the temperature measurement value of the target computer system can be avoided, so the temperature value of the computer system can be detected more accurately through the setting mode, andthe computer system can be