Maintaining optimal computer performance and longevity often hinges on the effectiveness of its cooling system. Among the most critical components of this system are the fans that regulate temperature by dissipating heat generated by the processor, graphics card, and other hardware. Understanding how to check computer fan​ speed is essential for ensuring your device runs efficiently and avoids overheating. This comprehensive guide delves into the importance of monitoring fan speed, methods to check it across different operating systems, and troubleshooting tips for common fan-related issues. Whether you are a casual user or a tech enthusiast, mastering this knowledge can help extend your computer’s lifespan and enhance its performance.