When you’re playing an intense game, it’s important to keep your rig cool. The best way to do this is by installing a custom fan in the case that blows air out of the system. This article will show you how to install one.

The how to install fans on top of case is a question that has been asked many times. There are multiple ways to do this, but the most common way is to use thermal paste.

Installing a custom fan may be difficult for a novice, despite the fact that it is as easy as 1,2,3. However, many individuals are still unaware of how to do so. They are either unsure on where the fan should be placed or how to connect the wire. I’m going to teach you how to accomplish it in less than 10 minutes today. I’ll walk you through the procedure step by step, and after reading this brief tutorial, you’ll be able to install a new fan straight away.

Step 1: Get a screwdriver and a fan.


Remove your fan, as well as any accessories such as screws, from the box. Take a screwdriver that you can use to remove those screws. It’s usually the same size as the other components installed in a computer casing.

Step 2: Remove your case’s side panel by unscrewing it.

Remove the screws

To remove the side panel, disconnect all power connections from your case and place it on a table. If your case’s side panel has thumb screws, removing the panel will be simple. You can also do it with a screwdriver. To get access to the interior of your system, you must first remove the left-hand side panel.

open the side panel

Step 3: Before installing your fan, try to place screws in it.

try screwing

It’s now time to install the fan after removing the side panel. But, to make the procedure easier, consider putting the screws within the screw holes of your fan to create spirals inside it. Because these fans come with plain holes with no spirals and you must create them manually, you may have to use a lot of force to insert screws into the holes. This should be done prior to installing the fan.

Step 4: Install the Fan

align the fan

It’s time to install the fan in the proper position after attempting to screw the fans outside the case. If you need to install a fan for exhaust, you may either attach it with the front side inside or just figure out which side the air will be pushed from by looking at the blades. Some fans include arrow markings on one side that indicate the intake and exhaust sides. However, the situation is different in this instance. I’m using a Corsair AF 120mm fan with no arrow markings on it. However, you can see how I installed the exhaust fan at the back.

Simply switch the fan to the opposite side if you’re using it for intake.

Step 5: Installing the screws

screw diagonally

Put screws in one of the top holes using the screw driver. Then, in the diagonal hole, screw in the second screw. This is necessary for correct alignment, and the screws will keep your fan in place.

Connect the cable in step six.

connect to the port

It’s now time to start wiring. A 3/4 pin power connection or a 2 pin molex connector will be included with your fan. A single 3/4-pin power connection is seen on modern computer case fans. If you wish to utilize the 2 pin molex connection from your fan, you may power it with a 4 pin molex connector from your power source. Alternatively, if your fan does not have a molex 2 pin connection, you must utilize the 3/4 pin power connector that will be attached to the motherboard.

Locate a 4 pin or 3 pin power port on your motherboard, which is usually found in the center left/right, top, or bottom. The 3/4 pin power ports on each motherboard are located differently on the PCB. If your motherboard’s power connector is far away, untangle the fan cable and attach it to the port. You won’t have to worry about placing the connection in the incorrect way since it will only travel in one direction.

Step 7: Finally, test it to see whether it works.

power the fan

Connect all of your power connections to your case now, but don’t install your side panel until your fan is operational.

Check to check whether the fan spins by pressing the Power button. If it spins, you did it correctly; if it does not, you did it incorrectly. After that, double-check your wiring. If your fan does not function even if it is brand new, there is just one possible cause: a defective motherboard power port.

Try using the other ports on the motherboard if the 3/4 pin power port on the motherboard isn’t powering up the fan. If it still does not function, it is possible that your fan was defective from the start. You have the option of returning it to the seller.

I hope you can now simply install your case fan, and if you have any questions, please ask them in the comments area below. Cheers!


The how to connect case fans to power supply is a question that has been asked many times before. There are multiple ways to do this, but the most common way is to use an extension cord.

Frequently Asked Questions

How do I add more fans to my computer case?

To add more fans to your computer case, you will need to purchase a new fan controller.

How do you install a case fan on a motherboard?

The installation of a case fan on a motherboard is an easy task. All you need to do is unscrew the backplate of your case, and then screw in the fan into the empty space that it left behind.

How do you screw a case into a fan?

You would need to use a screwdriver and tighten it in place.

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Holly is the smartest person you will ever know. She's a gamer by heart, and an author by soul. Writing for the website g15tools is a dream come true for her - she loves being able to share her thoughts and insights with others who love gaming as much as she does. When she's not writing or gaming, Holly can be found spending time with her friends and family.