A computer fan plays a crucial role in maintaining the optimal temperature of your computer’s internal components. Without proper cooling, your CPU, GPU, and other parts can overheat, leading to reduced performance, system instability, or even permanent hardware damage. Testing your computer fan regularly ensures it is functioning correctly and prolongs the lifespan of your machine. This article will guide you through various methods to test your computer fan, including software diagnostics, manual inspection, and hardware testing. By the end, you will know how to identify common fan issues and take appropriate action.