Excessive fan noise tends to be a rather common problem for many MacBook Pro owners. While the loud noise coming from the fans of your MacBook Pro very rarely cause significant damage, it can be quite a distracting problem, especially if you are working on something that requires intense concentration.
You might be tempted to call a technician to have a look at it, or even think that it’s time to replace it with a new one. Don’t worry, though — there are a few easy steps you can take to resolve this issue in the fastest way possible.
To fix the problem, just follow these tips.
1. Check the vents of your MacBook Pro.
To regulate internal temperature, Apple products are fitted with vents that enable their fans to absorb cool air and expel hot air. Here are some Apple devices and their corresponding vent locations.
- MacBook Pro - The vents are located along the side and at the back of the laptop.
- MacBook Pro (2013 edition) - The vents are located at the bottom which is where the cool air is absorbed, after which the hot air is expelled from the top vent.
- MacBook Air - The vents are located at the back along the clutch.
- Mac mini - The vents are located at the bottom of the device.
- iMac Desktop Computer - The vents are located on the bottom edge as well as at the back of the machine.
- Apple 4K TV - Both the fan and the vent are located at the bottom.
- Airport Extreme - Like the Apple 4K TV, the fan and vent are located at the bottom of the device.
To optimise the performance of both your MacBook Pro and its fans, do not allow anything to block the vents when you are using the device. This allows the fan to quiet down and operate more efficiently.
2. Limit the apps that you are running.
When your MacBook Pro is executing complicated tasks (like editing HD videos or running a graphics-heavy game, for example), the laptop’s fans will rotate faster, causing them to emit a loud noise. These tasks utilize a significant chunk of your CPU’s resources — and the more the CPU is overloaded with different programs, the noisier the fan will become.
Know the exact CPU percentage being used by your apps by checking your MacBook Pro’s Activity Monitor. What you need to do is:
- Open Activity Monitor.
- Choose View, then All Processes.
- Click on the “% CPU” column to arrange your active apps by the percentage of CPU resources they are using.
Don’t overwork your CPU and don’t use more than 70 per cent of its capacity, because it might break down from the strain. It’s also ideal to avoid keeping too many tabs open, especially if the tabs are all from Google Chrome. Google Chrome uses up a lot of your MacBook Pro’s CPU, so closing some or all of the tabs running it will greatly reduce the noise you MacBook’s fan generates.
3. Clean your MacBook Pro.
Over time, dust develops inside your MacBook, and the dust buildup around the fans causes them to make loud noises as they spin. Solve this problem by cleaning the internal parts of your MacBook Pro. Just follow these instructions:
- Turn off your MacBook Pro.
- Get a small Phillips-head screwdriver and a can of compressed air.
- Remove the bottom cover of your MacBook Pro with your screwdriver.
- Gently clean any dirt and dust that you see. Avoid exerting too much force as you might damage delicate electronic components.
- Use your can of compressed air to blow any remaining dust away from the MacBook Pro, making sure that the fans and the vents are clean and free from any blockages.
Don’t worry about damaging your beloved MacBook Pro. Everything will be fine as long as you are careful.
Other than the internal parts, your should also clean your MacBook Screen carefully. We've compiled several tips on how to clean your MacBook screen.
4. Test your MacBook Pro’s fans
If you think there are other problems with your MacBook Pro’s fans, you can always run diagnostics by using the Apple Hardware Test. Here’s how:
- Disconnect all external devices. The Hardware Test displays an error message if any external devices are still connected.
- Remove any connections to AC power.
- Turn off your MacBook Pro.
- Put it on a stable, hard, and flat surface like a work desk.
- Turn your MacBook Pro back on and quickly press and hold “D” on your keyboard. Do not release until you see the Apple Hardware Test icon.
- Use the “up” and “down” arrow keys to select your language, then press the Return key.
- Click on the Test button, then press “T” or hit the Return Key. If desired, you can also select “Perform extended testing” prior to starting the test.
- Once complete, review the Hardware Test results in the lower-right portion of the window.
The next time you hear a loud noise coming from the fans of your MacBook Pro, give the tips above a try. You’ll not only make your machine more quiet, you’ll also improve its overall performance and health.
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