Have you ever noticed that your MacBook fan is always loud inadvertently? Usually our Mac needs to do some heavy work. For example, when it comes to web development, photo retouching and video editing. We were not surprised to hear our MacBook Pro fan controller bounce up and the MacBook Pro fan’s noise increased, because we knew it was hard work. If you find that it always happens more or less regularly, then you should check the cause to avoid overheating your Mac. Let's take a look at the following, in the end is because of the noise of the MacBook fan. What details did we ignore?
是什么让您的Mac过热
A Mac is a computer with a large number of built-in workflows. One of them is to use some hardware resources, such as CPU, RAM and SSD, to effectively solve the task at hand, and then use MacBook Air fans to cool these hardware resources, because they tend to overheat due to work, just like when you are exercising. It will be like this.
Occasionally a little heat is normal-Mac can handle these heat. However, when you keep hearing the noise of the MacBook Air fan, your computer may overheat. This may be because the task you are about to perform is too difficult for the CPU and RAM to handle, or because the MacBook Air fan control system is not working properly.
Overheating is dangerous because it is essentially a downward spiral-CPU and RAM get hot because they can't handle the workload, which makes them worse at handling the workload. In rare cases, continuous overheating may cause permanent hardware damage, so it is best to stop its operation as soon as possible or take measures to prevent it from overheating.
检查最新的软件更新
Apple is really good at improving the efficiency of its system-level software. Therefore, even if there are some wrong functions that exhaust the functions of the Mac at the moment, it is likely to be fixed in the next system software update.
To check if there is a new macOS version:
1. Open System Preferences➙Software Update
2. Click Update Now
3. Please follow the installation instructions
In some cases, you may hear the MacBook fan handle the update loudly, which is normal. Once the update is installed, it will stop.
Similarly, if you find that starting a specific application causes the fan to make noisy sounds, please check the App Store or check the application menu in the menu bar to see if there is an update available for that specific application.
确保适当的通风
Another important and often overlooked cause of Mac fan noise is the failure to consider how quickly all the hot air escapes from the Mac.
Most MacBooks have main air vents on the back. Putting the laptop on a soft surface such as a sofa, blanket or thigh can easily be blocked, which will affect the heat dissipation.
The best solution in this case is to always ensure that there is enough space around the Mac, or at least place it on a hard surface (such as a table). Ideally, you should find a suitable laptop stand for your MacBook to lift it from the surface for optimal circulation.
Another reason for poor ventilation is that, over time, all the dust accumulated on the MacBook Air fan will accumulate. If you ask yourself: "Why is my MacBook Pro fan so big?" Maybe you need to schedule regular inspections to see if the vents are open on the outside, and then wipe gently with a microfiber cloth.
When you find that the Mac fan is loud but not hot, check if you can unscrew and open the back panel of the MacBook. Then carefully remove all dust from the fan itself and the surrounding area.
使用过多或过大的应用程序
If just dealing with daily tasks makes MacBook fans scream, you should break down the workflow to effectively find the culprit.
Do you use too many applications at once? Do you open email, browser, Excel spreadsheet and PDF reader at the same time? Do you really need 15 valid Google Chrome browser tabs now? Try to concentrate and close all unnecessary content, and only use Mac resources for the most difficult tasks.
However, if the noise of the MacBook fan starts immediately after opening a specific application, it may be that the software is too large for the Mac, and you'd better look for a less demanding alternative. For example, in the field of design, you can replace Adobe Illustrator or Figma with Sketch; for the browser, you can replace Google Chrome with Safari or Firefox; and so on.
监视您的CPU和RAM使用情况
Even if certain applications that produce MacBook Pro fan noise are obvious, your system may be affected by many hidden processes that you may never have heard of, such as various auxiliary applications. To find them, you must pay close attention to the actual location of the Mac's CPU and RAM:
1. Start "Activity Monitor" from the "Applications"➙"Utilities" folder
2. Navigate to the "CPU" tab
3. Click the %CPU column to ensure that all processes are displayed in descending order
4. Record all things that take up a lot of CPU power
5. If you know the process and do not want it to continue, please click the "Stop" button in the upper left corner
6. Switch to the "Memory (RAM)" tab and repeat
Note: When you see an unrecognized power consumption process, please don't stop! This may be necessary for the overall health of the system. Instead, it is best to restart your Mac to bring it under control.
If the noise of the MacBook Air fan often distracts you, turning Activity Monitor on and off for investigation may not be your best time choice. You should choose a solution that is always available, which not only displays your CPU and RAM status, but also displays accurate airflow temperature.
iStat Menus is a professional monitoring system on Mac. It is located in the menu bar and can silently track the progress of all system indicators you may need, such as CPU, RAM, sensors, network, disk usage, battery, time, and even weather forecast. In addition, you can customize its functions to update the things you care about in real time!
运行硬件诊断
In rare cases, when the noise of the Mac fan becomes annoying you, the problem may be the fan itself. To determine if the problem is with the hardware, you should perform an Apple Diagnostic test on your Mac:
1. Disconnect all devices from the Mac
2. Turn off the Mac
3. Restart the Mac and hold down the D key until the language menu pops up
4. Select the language and wait for the test to complete. The diagnostic program should provide you with a reference code for each problem. Make sure to write them down.
5. Restart the Mac
If the Apple Diagnostics test finds any problems related to the loud noise of the switching fan, please make an appointment at your local Apple Store or authorized repair center as soon as possible to solve the problem. You certainly don’t want a fan problem to cause your laptop to crash.
Keep your Mac optimized
The fact is that Mac provides you with a versatile toolkit that can solve many hardware problems. However, in general, this function is not user-friendly, hidden behind the CLI of the terminal, and not easily accessible. So what is a better way to optimize Mac?
CleanMyMac X provides all available tools for macOS under an intuitive interface. Here, you can choose to free up your RAM, flush the DNS cache, delete login entries, uninstall apps, and get rid of useless system junk-just click a button. More importantly, CleanMyMac X can protect you from malicious software and care about your privacy by simply deleting cookies or browser cache options.
As you can see, it is not a good idea to keep the MacBook fan running at maximum speed. There are several ways to solve this problem, from cleaning the ventilation system to monitoring CPU usage through the iStat menu, to running Apple Diagnostics all the way to using CleanMyMac X Keep your Mac in its best condition.
The above is the "MacBook fan is so loud, it turns out that I didn't pay attention to these details!", the key words of this article: MacBook fan, MacBook Pro fan noise, why MacBook fan is so noisy, Mac is overheated, Mac fan Noise, I hope it helps you. For more Mac skills, please pay attention to MacZ more skills articles.