Laptop Fan Making Grinding Noise

Why Laptop Fan Making Grinding Noise

Laptops and PCs are our daily life essentials. In today’s digital era we use them almost everywhere. They can be found in almost all work or school environments. Even though they are our daily life essentials, they suffer various types of malfunctions. One of which is a laptop fan making grinding noise you notice coming out of a laptop.

When you work on your laptop or PC more than often, you become comfortable enough with your device to know when something’s off about it. Today we will discuss the phenomenon of grinding sound coming from beneath the laptop.

When you read “grinding sound’ you ultimately think of a laptop”s fan. And yes, there are multiple ways any sorts of problem can occur with the fan of your laptop, which makes it create grinding or buzzing noises. Here we will discuss some of the most common and easily handled ones.

Reasons why laptop fan makes noise

Unlike other electronic devices, laptops tend to have a single-functioning fan. So it’s very easy to locate where the sound is coming from. The fan is located at the bottom left of the laptop’s base. There can be multiple reasons why your laptop’s fan is creating an irregular sound. Here is a list of reasons why your laptop may be creating noise.

  • Overheating
  • Dust
  • Blocked ventilation
  • Improper surface
  • Malware


Overheating of a laptop is one of the most common ways a laptop’s fan tends to make noise. If your device is running too hot during usage, it can make the fan of the laptop run faster, hence, create a greater, irregular sound.


Dust is another huge factor that makes your laptop’s fan create noise. The dust blocks the area around the fan and makes it begin to rattle. Dust can harm the functionality of your device’s fan if blocked for a longer time.

Blocked air vents: 

The Air ventilation system located in a laptop can be blocked by the presence of excessive dust gathered in the vents. The dust ceases the fan’s movement and makes it resist functioning. The resistance, in turn, is fought by the laptop’s fan through excessive force- in this situation, the rattling or grinding sound is created.

Improper Surface: 

The place you put your best laptops for physics majors during usage can also affect the functioning of its fan. Uneven surface creates higher chances of a laptop’s fan dysfunctioning.


Malware can one of the many reasons a laptop’s fan is creating grinding noises. Laptop fans and other functions can be disrupted by the presence of malware. Malware is quite harmful to your device.

Solutions for laptop fan’s grinding noise: 

There are multiple solutions to fix this malfunction:

  • Use cooling pads
  • Clean out dust
  • Clean the air vents
  • Use proper surface
  • Eradicate Malware or Replace Fan

Use Cooling pads: 

Cooling pads can stop your laptop from overheating and when overheating stops, your laptop will start functioning normally as it did before. Place a cooling pad beneath the surface of your laptop when you begin to use it, on regular basis.

Clean out the dust: 

Cleaning out dust by opening the whole system from the back is easy and can be done at home. Make sure you clear out all the dust particles that block the fan’s functioning area.

Clean the air vents: 

You can also work by cleaning your air vents. That process is also easy and does not require any professional help. And if the air vents are the problem, then they will be fixed after a thorough cleaning.

Use proper surface: 

Put your laptops on a proper surface. Uneven surfaces make the laptop’s fan create irregular noises.

Eradicate malware: 

Destroy all harmful data and viruses that may have been causing this malfunction.


Laptop fans can malfunction for the smallest of reasons, like using an improper surface. But, if all methods tend to fail you, you can always take it to a repair center or seek professional help from some technician near you.


Q#1: What other method removes dust? 

Ans: You may use a compressor for removing dust.

Q#2: What else can I do? 

Ans: You may replace the old laptop fan with a new one.