Under normal circumstances, the higher the cooling fan speed, the louder the noise will be.

The reasons for the louder sound of the cooling fan are as follows:

1. The weather is too hot, and the internal temperature of the chassis continues to be high, which cannot dissipate heat in time, causing the cooling fan to continue to run at high speed, causing noise. get bigger.

***Solution: The machine should be used in a cooler room or the indoor air conditioner should be turned on to control the room temperature to prevent overheating of the indoor temperature from affecting the computer. If you are using a laptop, it is recommended to purchase a cooling base or other auxiliary heat dissipation.

2. The computer has been used for a long time without cleaning and maintenance. A large amount of dust has accumulated on the cooling fan. The friction between the dust and the shaft or the shaft and the bearing causes the operating noise to become louder.

***Solution: For desktop computers, you can disassemble the side cover of the chassis and use professional dust cleaning equipment to clean the fan dust; for laptops, you can use a soft brush and dust blower to clean the cooling fan.

Tips: The above operations are relatively complicated. Non-professionals are advised to contact Lenovo service outlet engineers to avoid causing damage and affecting the warranty.

3. When running large-scale software or games, the CPU works at full load and heat dissipation increases. Therefore, the cooling fan will run at full speed, causing the noise to become louder.

***Solution: It is recommended to enter the task manager and end the process with high CPU usage; when running large programs, try not to run other programs to reduce the workload of the CPU, thereby reducing noise.

Example: (The method to find high CPU usage is as follows, but the program is not limited to the following programs)

Right-click on a blank space on the taskbar to bring up "Task Manager";< /p>

In the "Task Manager", click the "CPU" column title, and the Task Manager will sort according to the CPU usage;

Select the higher program or process, right-click, and select " End Process" or click "End Process" in the lower right corner;

4. The internal wiring of the chassis is abnormal, causing friction between the cooling fan and the wiring, and the noise increases; (split desktop only)

Tips: The content of this article is for your study and reference. Lenovo does not recommend that you expand, upgrade, or replace hardware devices by yourself. Such operations are risky. If you have the above requirements, we recommend that you contact the nearest Lenovo service outlet for professional support.

This situation is mostly caused by disassembly and assembly by non-professionals. When the Lenovo split desktop leaves the factory, the wiring harness has been bundled with cable management tapes. After disassembly and assembly, please restore it as much as possible to avoid abnormal noise. .

*To learn more about computer usage and maintenance techniques, click to enter the "Lenovo Business Services" homepage to get more help.