How to Connect Fans to Motherboard: A Step-by-Step Guide

In short, the place you connect any standard consumer fan to is one of the many 3 or 4-pin fan header(s) on your motherboard . Your motherboard will most likely have at the very least two or three headers like this. Any one of those can and will power a fan just fine.
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Installing a case fan might seem like a daunting task, but with the right guidance, it’s a breeze. In this post, we’ll show you how to install a case fan and keep your wires as clean as possible.

The first thing you need to do is figure out where you want your wires to run. Always keep in mind that the front part of the fan sucks air in, while the back part blows it out. So if you want the fan to be an exhaust fan, the front should be facing down if you mount it at the top, or facing up if you mount it at the rear.

Once you’ve figured out where you want your cables to go, find your fan headers on your motherboard. Every motherboard is different, so it’s important to check your motherboard owner’s manual. If you have many fans, you’ll need a fan hub. This case comes with a fan hub for four total hubs that you can use on the motherboard.

After you’ve figured out your wiring and where you want your cables to run, mount your fan using screws. Don’t worry if it feels like they’re cross-threading; that’s just how these screws are designed.

Next, deal with the cables. This fan has RGB, so it has two cables. The first is the RGB cable, which is a three-pin addressable RGB or digital RGB. The second is for the actual fan power and speed. If your fan only has three pins, that’s perfectly fine. Usually, the pins on the motherboard will have four.

On these connectors, there is a little rail-looking thing that slides directly on. Follow the rail, and you can’t plug them in the wrong way, even if they’re only three pins. Plug the rail on the hub into the pin on the motherboard.

Finally, get rid of the wires. Fold them in half and stick them through the hole in the rear. Tie them down in the rear to the side of the chassis. Plug in the LED one at the bottom of the digital RGB three-pin.

Done! Now you know how to install a case fan. Whether it has RGB or not, the process is pretty much the same.

FAQ

What ports do fans use on motherboard?
A motherboard fan connector is a small three or four-pin connector located on the motherboard. The fan will have one set of cables (bundled together) that will connect into the connector on the motherboard. The motherboard fan connector is a Molex KK connector.
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Can 3 pin fan connect to 4 pin?
A 3-pin case fan can easily be connected to a 4-pin connector on the motherboard. The fourth pin is simply left blank in this configuration. In most cases, it will then run unregulated at a fixed speed. Some newer boards offer the possibility to adjust the fan speed by voltage.
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