Wait for a few seconds and put out a piece of paper in front of the vents.

Turn on your computer and run a demanding program (as explained in Method #1).

You can also test your laptop’s fans by feeling the air coming out of its vents with a piece of paper or your bare hands. Method #2: Feel the Air with a Piece of Paper or Hands And in that case, you should have the fans checked and tuned up (as explained above). Any irregularities such as cracking, lopsided noise, or weird sound could indicate issues. The sound of the laptop’s fans is usually smooth and uniform.

If you can hear the fans, then know that it is working for sure.

A demanding app could be a high-resolution game or anything that requires high GPU usage.

Run a demanding app and wait a few more seconds if you don’t hear the fans a few moments after starting the computer.

The fans will only be helpful to the machine when it starts to heat up.

Don’t worry if that happens to be the case with your laptop. Sometimes the fans may not start immediately. Turn on the laptop, and after a few seconds, put your ear on the side with the fans.The noise shouldn’t be too high, but you should still hear it at a close distance. Your computer fans will produce some whirring noise as they spin. Method #1: Listen to the Noise of a Whirring Fan Here are the three methods you can use to test your laptop fans. However, you should test your fans whenever you notice any of the above issues. There could be other mechanical problems causing some of the above glitches and inconveniences.

The fans aren’t running even when you run demanding programs.

You may realize that your fans are constantly running and making undue sounds.

Overheating is the first sign that your laptop’s fan may not be working.

You should pay attention to identify the following signs quickly and take your laptop for a check-up and fine-tuning of the fans: There are many indications of faulty or malfunctioning laptop fans.

Method #2: Feel the Air with a Piece of Paper or Hands.

Method #1: Listen to the Noise of a Whirring Fan.

Fan controller software laptop