To control the illumination of the prism fourth-generation fan, the motherboard control software is needed. First of all, make sure that your motherboard supports RGB control function, and install corresponding control software, such as ASUS Aura Sync and MSI Mystic Light Sync. These softwares can communicate with the RGB interface on the motherboard to control the lighting effect of the fan. When connecting the prism fourth-generation fan, you need to follow the instructions in the product manual to ensure the correct connection. Usually the fan will have an RGB interface, which needs to be plugged into the corresponding RGB interface on the motherboard. After the connection is completed, open the motherboard control software, select the corresponding fan channel, and set the required lighting effects, such as color, brightness and flashing mode.