5H40W36671 - Lenovo Laptop CPU Fan & Heatsink - Genuine

This Lenovo Laptop CPU Fan & Heatsink (5H40W36671) is a genuine part designed specifically for a variety of Lenovo laptops. It serves a dual purpose: firstly, to cool down the CPU (Central Processing Unit) by dissipating the heat it generates during operation, and secondly, to maintain an optimal operating temperature by actively cooling the system through airflow provided by the fan. Compatible with Lenovo brand laptops, this part is also known as "Heatsink CPU Heatsink, w/fan, delta."

In terms of operation, the CPU fan works by drawing cooler air from outside the laptop and directing it over the heatsink. The heatsink, in turn, absorbs the heat from the CPU and disperses it into the air that the fan moves out of the laptop, thus preventing the CPU from overheating. Symptoms indicating this part may need replacement include the laptop overheating, the fan making unusual noises, or the laptop shutting down unexpectedly due to high internal temperatures.

Before deciding to replace this part, ensure your Lenovo laptop's model number matches this part's specifications (5H40W36671).

iFixit is an official Lenovo partner. Our Genuine Lenovo parts are supplied by the official Lenovo supply chain.