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How to Reduce Fan Noise on Mac

Macs make little noise in general. But sometimes a Mac fan can get noisy pretty quickly, which could be extremely annoying.

So why does the MacBook fan suddenly become so loud? Usually, it means something goes wrong. When overheating, the fan can sound as though your Mac wants to take off. Luckily, there are a bunch of practical solutions for the loud fan.

Let's see how to get your MacBook to stop running so loud.

The quickest solution is to improve air circulation.

There is a lot of processing power inside your Mac. The more you use it, the harder it works. And the harder it works, the more air is needed to cool it down. The fan keeps the internal processes and system cool so that your Mac keeps running flawlessly. But like any fan, it requires air and good circulation to make it work.

An overheated computer could switch off. To save your hardware and data, always make sure your Mac has enough space around it. Or it’s at least put on a hard surface, such as a desk. Ideally, you should get a proper laptop stand that elevates your Mac from the surface to get the best circulation possible.

How to Reduce Fan Noise on Mac

One more reason for poor air circulation is all the dirt and dust that get accumulated on your computer’s fans over time. Schedule regular inspections to see if the exteriors are clear and gently clean them with a microfiber cloth.

Schedule regular inspections, to see if the vents are clear on the outside & gently clean them with a microfiber cloth. To protect your Mac from overheating, keep it optimized.

Keep your Mac optimized

macOS provides you with a toolkit to fix lots of hardware issues. But, more often than not, these tools are not user-friendly and easily accessible.

What is the better way to optimize your Mac?

CleanMyMac X is a powerful Mac cleaner and system optimizer notarized by Apple.

To give your Mac a speed boost and avoid overheating,

  • Open CleanMyMac X and go to the Optimization tab.
  • From there, remove heavy memory consumers and other agents that heavily drain your CPU and thus overburden the fan.

How to Reduce Fan Noise on Mac

  • Make sure to check login items, launch agents, and hung apps as well.
CleanMyMac X is free to download, so you risk nothing. Now that you know how to optimize your Mac.

How to monitor your RAM and CPU usage

Some power-hogging apps that cause Mac's fan noise are quite obvious. Still, your system might also be sensitive to dozens of hidden processes that you might not have heard about. To find them, you'll need to keep an eye on where your Mac CPU & RAM actually go.

Here’s how:

  • Launch Activity Monitor from the Utilities folder in Applications.

How to Reduce Fan Noise on Mac

  • Navigate to the CPU tab. Click the % CPU column to make sure all the processes are displayed in descending order.
  • Close anything that is clearly drawing too much battery power.

How to Reduce Fan Noise on Mac

  • Just select the process and click the Force Quit button in the top-left corner.
  • Now, switch to the Memory (RAM) tab and repeat.

Well done! In rare cases, when your Mac fan noise becomes a non-stop annoyance, the problem could be with the fans themselves. To find out if the problem is actually with the hardware, you need to conduct an Apple diagnostic test on your Mac.

Run hardware diagnostics

To do this:

1. Disconnect all external devices except for your display, keyboard, mouse, and connections to the main power.

2. Make sure that your Mac is on a hard, flat, and stable surface with good ventilation. Shut it down.

3. Turn on your Mac and immediately press and hold the D key on your keyboard. Keep holding it down until you see a screen asking you to choose your language. Wait until the test is complete. Usually, it takes two or three minutes. If a problem is found, Apple diagnostic suggests solution & provides a reference code.

Make sure to write them down before continuing. Are there any issues related to the fan loud noise? If yes, book an appointment at your local Apple Store or a licensed repair center to fix it as soon as possible. You certainly don't want your fan issue to cause a laptop meltdown, right?

Reset SMC settings

One more solution to loud fan noise is to reset SMC settings. SMC stands for System Management Controller. This driver is responsible for your Mac's hardware, including fans, power, battery, and charging.

So, here’s how to reset SMC settings for Mac’s with non-removable batteries:

1. Shut down your computer and plug in the power cord.

2. Hold the Shift-Control-Option keyboard shortcut.

How to Reduce Fan Noise on Mac

While holding the three keys, press & hold the power button as well. then keep holding all four- keys for 10 seconds. Release all keys, then press the power button to turn on your Mac. That's all! Finally, it is time to free up some space on your Mac.

Free up space on Mac

Free hard drive space is like fuel for your processor. When your drive is cluttered down, the processor reaches its peak capacity & starts asking for some fresh air. So, the least-invasive method to fix a roaring fan is to delete junk on your startup drive. You'll be surprised how much space you can free up without deleting any important files. As a dedicated Mac cleaner, CleanMyMac can do the job easily.

It removes old baggage like log files, outdated caches, and other system junk.

1. Just launch CleanMyMac X and go to the System Junk tab.
2. Hit the Scan button to let the app analyze your system.

How to Reduce Fan Noise on Mac

3. Once done, click Review Details to see a full list of items found on your Mac. How many gigabytes of junk files do you have? Share in the comments below!

4. Switch between categories and uncheck any items you don’t want to delete.

How to Reduce Fan Noise on Mac

When you're ready, click Clean to remove the rest of the files. Great!

Now, your machine is in great shape, and the fan should be running smoothly. As you can see, having your Mac fan running at maximum speed all the time is not a good idea. There are a few ways to address this problem — from cleaning the ventilation system to keeping your Mac in its best shape with CleanMyMac X.

If any of these solutions still haven't solved the problem, take your computer to a certified Apple repair center. I’m really hoping you found this article helpful. If you do, make sure to give it a are and comment below.

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