If the radiator fans of your liquid cooler does not spin, it can't maintain CPU temperature. Check this easy-to-follow guide and fix your radiator fans.
fans
Laptop fan makes noise due to high system temperature. Limit workload, maintain proper airflow and clean fans to lower the temperature.
I just finished cleaning up the fans on my old PC. See the before and after. Likewise will guide you to clean your fans step by step,
