What is the case fan on the computer?

Man fitting case fan

Don’t get confused by the word “case fan.” It is the same fan you see inside your Central Processing Unit (CPU). It is also referred to as a system fan by many of the individuals like us. The name case fan is given to these fans because it is either attached to the front or back of your CPU case generally.

The primary objective of the case fan is to pull inside the fresh air from the surroundings and blow out the hot air of the CPU outside of the case. You can see a large variety of the fans sizes, but the most popular formats are 80 mm, 92 mm and 120 mm for the case fan.

According to the definition of the case fan, it is known as a device which is used to keep a computer or a computer device cooling by blowing out the hot air from the system outside and taking in the cold air inside the system, to protect the system from the excess heat.

The speed of a case fan is always measured in Revolutions per Minute (RPM). If a fan has a higher RPM rating, then the spinning speed of a fan would be higher. But many of the fans with the higher RPM also sound higher. So if you are going to buy a case fan, then you must check its sound, so that it should not be annoying for you.

Let’s check out the different types of fan used in the system.

Case fan– The fan which is installed inside the case, attached to the side of the matter is called a case fan.
CPU fan– It’s the fan which is installed above the top of the processor to keep the processor cooler.
Power supply fan– The power supply fan is located inside the power supply unit. It blows out the hot air outside the power supply unit and keeping it fresh.
Video card fan– This type of fan is used to cool the video card installed in your system.

How to install a case fan?

A case is always installed at the side of an argument either back side of the case or bottom of a computer (CPU) case. These fans are mounted with four screws generally. The screws used are either made of rubber or steel, but rubber screws usually are preferred. If you buy a case fan, you will get the screws with it for installing it and keeping it in place. Some of the case fans come with drivers also to work correctly. So, in that case, you will have to install the drivers too according to the operating system you are using.

Some of the factors must be kept in mind while choosing a case fan are:-

3- pin and 4-pin

A 3-pin fan connector has wires to connect, and you cannot control its RPM and speed by yourself.
But a 4-pin connector generally comes with Pulse width modulation control (PWM) feature. You can control the speed of these fans by using the software which comes with the fan.

Fan speed

The speed of a fan is always measured in RPM, which means how many times a fan completes a full rotation in one minute. Higher RPM means some revolutions per minute.

Fan size

We have already talked about the different types of fan sizes and the fan sizes used generally. The fan sizes determine the amount of air coming in and going out of the system. More the fan size more the air comes in and goes out.

CFM or Cubic feet per minute

It is one of the best specification to look at while buying a case fan. It means how much amount of air a fan can move in or out. It determines a fan’s cooling performance.

Wrapping it Up

Now you can understand the specifications and factors essential to buy a case fan and why it is termed as a case fan? And I hope after going through this article you can decide by Just seeing the specification now.

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