Which component is critical for the cooling system of Lenovo laptops?

The cooling fan is essential for the cooling system of Lenovo laptops because it actively circulates air to dissipate heat generated by the internal components. As laptops perform various tasks, particularly resource-intensive ones such as gaming or video editing, the CPU and GPU generate significant heat. The cooling fan helps maintain optimal operating temperatures by expelling hot air and drawing in cooler air, preventing overheating and ensuring the laptop operates efficiently.

While other components, such as RAM, power supply, and hard disk drive, are crucial for the laptop's general operation and performance, they do not directly contribute to the cooling mechanism. For instance, RAM is primarily involved in temporary data storage for quick access, while the power supply provides electrical power. The hard disk drive is used for long-term data storage. None of these components have a direct function related to heat management like the cooling fan does. Hence, the cooling fan's role is pivotal in maintaining system stability and longevity.