Understanding CPU_FAN, SYS_FAN, CHA_FAN, and CPU_OPT Interfaces on Motherboards
During the process of assembling a computer, although the installation is simple, problems often arise with the connections. Many users mistakenly plug the CPU cooler power cable into the SYS_FAN port. Although the fan may spin, you might encounter an F1 error message "CPU Fan Error" when starting the computer, and it also prevents the CPU cooler from intelligently adjusting its speed. Below, we share knowledge about the CPU_FAN, SYS_FAN, CHA_FAN, and CPU_OPT interfaces on computer motherboards.
2025-01-14