Why is the Mac fan so loud? How to fix an overheated Mac

Letting the fans go all out does not mean that your Mac must have a problem, because the reason for installing them in the first place is to cool the inside of the computer by increasing the airflow around the components. If you are running a computationally intensive application, such as a high-definition video editor or high-end games, your Mac will work very hard to generate heat. The fan sensor will notice that the temperature is rising and immediately rotate the fan to help prevent the system from cooking on its own. Of course, if you have not done any of these things, there are other factors that need to be considered before calling Apple support. Next, the editor will give you a detailed introduction on how to repair an overheated Mac, and I hope it will help you!

The specific method is as follows

Step 1: Check the CPU usage
As a precautionary measure, the fan on Mac usually starts when the CPU is under heavy load. However, if you are not sure what triggered the fan, it is best to open the "Activity Monitor" and look at the applications that take up all the CPU resources.
To do this, hold down the CMD key and press the space bar to open Spotlight. Now search for "Activity Monitor" and select it from the list that appears.
Make sure the "CPU" tab is selected, and look at the application at the top of the %CPU column.
If it is not necessary, you can try to turn it off and see if it can stop the fan. Click the process, and then click the X above to stop it.

Step 2: Check your room temperature When
diagnosing fan problems, be sure to consider environmental factors. If the weather is hot, there is no air conditioning in the house, or the heating in the room is severely insufficient, then the ambient temperature may adversely affect the performance of the Mac.
Ideally, the room temperature should be between 10 and 35 degrees Celsius. If the temperature in your area is higher than 35 degrees, please move to another room or stop using your Mac.
This can be even more challenging when using intensive software, because if the room temperature itself is high, it is more difficult for the fan to cool the computer.
If you can open windows, turn down the thermostat, or use indoor fans to move the air, then an iMac, Mac mini, or other Mac should be able to cope better.
To alleviate this problem, you can try to use a vented tray on your MacBook.
Step 3: Ensure air circulation.
Your MacBook may be placed directly on the surface, which means that air cannot be emitted around it. We recommend using a special MacBook stand, which at least allows air to circulate under it. Using a stand will lift the Mac off the desk or lap surface and increase the airflow around the case.
Step 4: Check
if the vent is blocked. Another reason your fan may be like Billy-o is if the vent itself is blocked, because it will make it difficult for hot air to leave the inside of the device. On the MacBook Pro, you will find the vents along the rear edge (where you find the display hinge) and the side edges just above the USB-C port, while the MacBook Air vents are located near the top edge of the case. Hinge.
Mac mini owners should check the underside of the device because this is where cooler air is drawn into the case. In addition, you also need to make sure that the vents on the back are unobstructed so that hot air can be discharged safely.
On the iMac and iMac Pro, the ventilation holes are located on the back and bottom edges, while the Mac Pro has ventilation holes on the front and back.
If you work on a sofa, make sure that these areas are not blocked by table objects or cushions. You can try to use a Hoover tube to remove any accumulated lint or dust, but please make sure to keep the nozzle and the equipment housing a certain distance to avoid damage.
Step 5: Make sure you are using an official adapter.
You should also use an Apple adapter. Apple recommends that you plug the adapter into your MacBook first, and then plug it into the power source.
Step 6: Reset the SMC
If you have completed all these operations, but are still experiencing problems with your Mac overheating, please consider resetting the SMC (System Management Controller). It is generally considered that this is the last resort to solve most Mac problems before heading to the Apple Store.

The above is what the editor shared for you today. I hope it will be helpful to you. If you want to learn more about Mac-related knowledge, please follow macz.com!

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Origin blog.csdn.net/macz_yo/article/details/112755159