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Is your MacBook Pro making a loud, whirring noise that you can’t seem to get rid of?
If that’s the case with you, here are simple hacks to help you identify the problem’s source and then fix it yourself.
There are two possible causes of MacBook pro making loud whirring noise- here’s how to know the possible cause:
If you own an old machine, the old models that came with a hard drive rather than a solid-state drive (SSD), then a possible cause of the whirring noise could be the drive.
In this case, I would recommend you consult a technician or simply replace the drive with a quiet one.
Here is an article I wrote on some of the quietest hard drives on the market- read the guide and see the potential fit for your machine.
On the other hand, if you have a newer model, then the most probable cause of the noise is the fan.
I have previously discussed some of the best ways to help fix a noisy laptop fan without involving a technician.
Quick Fixes for MacBook Pro Making Loud Whirring Noise
Unlike your regular laptop, MacBook’s are renowned for their superior computing power.
They also boast different architecture.
For this reason, there could be one extra detail that could also be a major contributor to the noise problem.
1. Apple T2 Security Chip
Most MacBook users often complain of the whirring noise problem as soon as they turn on their Mac machines.
I can attest the same as I’ve owned both MacBook Pro and a Dell Laptop and I haven’t experienced such a problem with my Dell computer.
The whirring noise, in this case, serves as a safety alert to warn you that there’s a problem with the computer.
Most modern Apple laptops are equipped with Apple T2 Security Chip.
If you press the power button immediately after plugging your mac into the power source, the computer will throttle full speed, making the fans also spin to the highest speed.
The chip is put in place to help keep you aware of and encourage your computer’s safe use.
2. Fan Problem
If the whirring noise kicks in immediately after switching on the laptop, even when not plugged in, then the biggest culprit, in this case, are the fans.
Several things could be causing the fans to start immediately you switch on the computer, and they include:
Dust and Dirt Accumulation
Dirt and dust accumulations could be why the fans start spinning immediately after switching on the computer.
Not only does dust affect computer fans, but it’s also the culprit for ceiling fan making a clicking noise.
If the motherboard’s hot air cannot escape your computer, it causes rise in temperatures, making the fans spin immediately after boot.
Inspect the ventilation holes and see if they’re clogged with dust or debris.
You can use a hairdryer to blow out the dust or simply use a quiet vacuum cleaner to suck out the dust.
Perform this maintenance procedure regularly to avoid this sort of problem again in the future.
At other times, even when your machine fans and ventilation system are clean, the fans will start to spin after several hours of heavy usage.
At this point, the fans will spin at the highest speed possible because you have no control over them.
But what if I told you there’s a way to have control over the fan spin speed?
Having control will allow you to decide when the fans turn on and the speed as well.
You can simply download fan control software for MacBook’s.
Some great recommendations, in this case, include Fan Control by Lobotomo Software, SMSF control and MacBook Fan Control by Derman Enterprises.
These softwares are designed to alter the temperatures at which the fan starts spinning.
However, it’s important to note that they won’t go below the manufacturers recommended settings.
Stop an Errant Process
Some programs will run in the background without your knowledge hence straining your computers computing process.
A good example is Skype and some other programs that start after booting your machine.
Too many background processes are likely to overwork your computer hence prompting the fans to kick in.
You will need to stop these programs that are consuming excess CPU.
Luckily, use the Finder tool in your MacBook- and type in the Finder’s search bar “Activity Monitor” and then press the “Enter” button.
Click on the Activity Monitor icon to check the percentage of CPU all the background programs are using.
Perform a force quit to stop a background process you’re not using and only leave the programs you’re using running.
Apple Diagnostic Test
All MacBook’s are equipped with software that allows you to test whether the problem results from hardware failure.
The program is known as Apple Diagnostic Test, can be a live saver, especially when you can get the machine fan to work correctly.
After you see the grey screen, press the D button to allow you to select hardware tests to perform.
Other Causes of MacBook Fan Noise
Some other possibilities could be causing the machine fan to start spinning immediately after switching on.
Probably your room is too warm/hot. You can solve this problem by installing a quiet wall air conditioner.
If you’re on a budget, I would recommend a quiet pedestal fan as a quick fix.
It’s also possible that your computer is getting older, and the hardware produces more heat than it did when the computer was new.
You may have the latest operating system, capable of running on your computer and using more resources than the previous one.
On MacBook Pro Making Loud Whirring Noise
Nothing is annoying, like having a MacBook Pro making loud whirring noise while trying to beat a deadline.
The noise reduces productivity and creates lots of distraction throughout. (Source)
The above hacks can help you figure out the problem and fix it by yourself without much trouble.
You can watch the video on this link to give you a better visual understanding.