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Is Your Mac Fan Loud? Causes and Ways to Get it to Quiet Down



Macs don’t typically make a lot of noise. Then, the fan may become extremely noisy out of nowhere, and the noise can quickly get annoying, especially if there isn’t any obvious reason. It might be a sign that your Mac is overheating or there’s some other problem. So, has your Mac started making loud noises all of a sudden? Read along to know the causes and some troubleshooting tips.

Why is your Mac fan making loud noises?

When you are running resource-heavy applications or intensive tasks that make your computer overheat, it may kickstart the Mac fan. The fan noise might sound as though your system wants to take off. Furthermore, your Mac will slow down due to overheating.

Solutions to quiet down Mac fan noise 

  1. Close apps and tabs when you don’t need them 

The more browser tabs and applications you have got running, the more odds your Mac employing its fan to keep things cool. Close the apps and tabs when you don’t need them anymore, especially if you use iMovie, Photoshop, or other graphics-intensive applications.

Open the Activity Monitor > click on the CPU tab to see which applications use the most CPU resources. It is a good idea to close those applications to prevent your Mac from working too hard to cool things down.

  1. Control Man fan speed 

Most Mac users don’t think about the internal components unless there’s a problem. The same thing happens with Mac fans.

Mac fans play a crucial role in maintaining the overall health of the system. It controls the internal temperature and prevents overheating of the elements. When you are using too many resource-intensive apps on Mac, the system starts to heat up. That’s when Mac fans try to cool down the hardware resources and ensure a balanced temperature. However, they go out of control at times, and you may have to try manual MacBook fan control using programs like iStat Menus. The program is ideal for monitoring the functioning of the Mac fan and ensuring they work. You can increase or decrease the fan speed and have total fan control. So, whenever you feel that your Mac’s fan is too slow, you can accelerate it and vice-versa.

  1. Improve air circulation

Haven’t you ever been tempted to use your Mac in bed? If you’ve given in to the temptation, the soft surface of the pillows or duvets has probably covered the air vents on your system and making the fan run louder and faster.

What’s the solution? Ensure to always work on a flat surface to have more air to work with your Mac’s fan.

If you wish to work in bed, invest in a good laptop stand and Mac holder to elevate your system off the surface, and the vents aren’t covered.

  1. Diagnose and test the cooling fans 

When Macs are exposed to heat frequently, their cooling devices become unstable. Overheating doesn’t just damage the fan but the entire machine. Your system may unexpectedly shut down when the thermals are unable to cool the laptop.

If you’re worried the fan is damaged, you can run Apple Diagnostics.

  1. Reset SMC settings 

SMS or System Management Controller is a driver responsible for Mac’s hardware, including processor, fans, and motherboard. So, resetting SMC settings is one potential solution to annoyingly loud fan noises.

Resetting SMC settings in Macs with non-removable batteries:

  • The power cord should be unplugged.
  • Go to the Apple Menu > choose Shut Down > once the system has shut down, press Shift + Control + Option, along with the power button for ten seconds.
  • Release all the keys > press the power button and let your system switch on.

For Macs with an Apple T2 Security Chip, here’s how to reset the SMC settings:

  • Shut down your Mac > press and hold Control + Option + Shift for seven seconds. During the process, you may turn it on and off.
  • Release the keys and wait for a few seconds before switching on your Mac
  1. Delete unnecessary items and free up space on your Mac

Do you know what fuel is for your processor? It has free hard drive space. When your drive is filled and cluttered, the processor reaches its peak capacity. That’s when it starts seeking fresh air. Deleting junk on your startup drive is one of the most least-invasive methods of fixing a loud fan.

If the solutions mentioned above have not solved your problem, the loud fan noise might indicate a hardware malfunction. It might be worth taking your Mac to a certified repair shop.


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