What if the imac fan is loud?

under normal circumstances, the higher the rotating speed of the cooling fan, the greater the noise.

There are several reasons for the noise of the cooling fan to become louder:

1. The weather is overheated, and the inside of the chassis is continuously high temperature, which can not dissipate heat in time, resulting in the continuous high-speed operation of the cooling fan and the increased noise.

*** solution: the machine should be used in a cool room or the indoor air conditioner should be turned on to control the room temperature, so as to prevent the overheating of the room from affecting the computer. If you are using a notebook computer, it is recommended to purchase a cooling base and other auxiliary cooling.

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

*** Solution: The desktop can disassemble the side cover of the chassis, and use professional dust cleaning equipment to clean the fan dust; Notebook can use soft brush and dust blower to clean the cooling fan.

tip: the above operation is complicated, and non-professionals suggest to contact Lenovo service network engineers for operation, so as to avoid damage and affect the warranty.

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

*** 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 CPU, thus reducing noise.

Example: (The method for finding high CPU utilization is as follows, but the procedures are not limited to the following)

Right-click on the blank space of the taskbar to bring up the Task Manager;

in the task manager, click the column heading of "CPU", and the task manager will sort by CPU occupancy;

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

4. The wiring inside the chassis is abnormal, which leads to the friction between the cooling fan and the wiring and increases the noise; (Split desktop only)

Tip: The content of this article is for your study and reference. Lenovo does not recommend you to expand, upgrade or replace hardware devices by yourself. Such operations are risky. If you have the above needs, we suggest that you contact the nearest Lenovo service outlets 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 and arranged with cable ties. Please try to restore it after disassembly and assembly to avoid abnormal sound.

* Learn more about the operating skills of computer use and maintenance, and click to enter the "Lenovo Business Services" homepage for more help.