If you can hear the noise that is coming from the fan of your PC then it is time that you diagnose your PC because it could be a major problem that may be causing the sound to emanate from or just a minor issue that will be causing this problem. Whatever the problem may be, you should probably check your PC and see what is causing the noise to emanate.
There could be any reason why your fan may be producing noise but here are some ways to diagnose and fix your noisy computer fan!
Checking the Software Overload
The first thing that you should do is check what software(s) is running on your PC. You can do this by opening the Task Manager and then checking the Activity Monitor Tab. From there you can see the usage of your CPU. If you aren’t doing anything or running any software but still the CPU usage is high then it may be that there is some program running in the background that is using the CPU resources and causing the noisy fan sounds or it may be that your PC is infected by malware or virus that is using your PC’s resources without you knowing about it.
If the noise kicks in when you are doing a heavy task such as heavy gaming or video editing then the problem is not with your software but it is with the hardware of your PC.
Allow air circulation for your PC.
Your PCs also need ventilation and you should keep your PC at such a place where air circulation is easily possible. If there isn’t space for air circulation then your PC will get hotter easily causing the fans to run at full speed to cool down the PC.
If you are using a laptop then avoid putting your laptop on a pillow or a blanket because you will be blocking the vents for air circulation and hence the fans will run at much higher speed, producing noise. Whenever you are using a PC or a laptop, always allow the space for air circulation and there shouldn’t be anything blocking the vents.
Cleaning the Dust
Dust is a thing which can cause harm to any electronics device, whether it’s your TV, mobile or PC, dust is always dangerous for electronic components. When these is extra dust then your fans will have to spin much faster and hence the noise will emanate. You should keep your CPU at a place where it is safe from dust and also take a screwdriver, open up the CPU casing and using a blow dryer or air duster, clean out all the dust from the CPU. For future, consider putting in some filters that will block the dust from coming inside your PC.
Replacing the Fan
If the aforementioned fixes aren’t working then you should consider buying a new CPU fan. Sometimes, the fan is either too old and not working properly or is producing too much noise. So, you should consider buying a new fan if the old one bothers you.