Can I plug a 3 pin case fan 4 pin motherboard header? It is one of the common askings about setting up a case fan into the motherboard.
In fact, it is your core asking right now.
Don’t worry. You have come to the right place indeed. I am writing detailed facts about the issue in the entire article.

3 Pin Case Fan
You can connect a Case fan through a 3 pin connector. There are 3 square holes on the front of the connector. And on the back, it has 3 wire entrances.
The disadvantage of a 3 pin case fan is you can not control the fan speed whereas a 4 pin case fan has PWM (Pulse Width Modulation) system that can control the fan speed.
4 Pin Motherboard Header
A 4 pin motherboard header connects the 3 pin or 4 pin connectors. It has PWM system availability. But the system can only perform if you connect a 4 pin case fan.
Can I Plug in 3 Pin Case Fan to 4 Pin Header?
Yes, you can connect your 3 pin case fan to 4 pin header on the motherboard. Here only the RPM will vary. For your kind info, RPM is the speed control option.
Here, the only issue will be you can not control the fan speed. Otherwise, the fan will function normally.
How to Connect 3 Pin Case Fan to 4 Pin Motherboard Header
Connecting a 3 pin case fan to 4 pin motherboard header is a simple task. You can easily do it by yourself without taking your CPU to the technician.
Firstly, you have to align the fan connector with the motherboard header. Then tap the connector to the motherboard header until you inject it properly.
After that, the 3 pin fan will be ready to use. There won’t remain anything that can be a hazard for using the combination.
Final Words
Therefore, it will be great if you have null confusion about the combination between 3 pin case fan 4 pin motherboard header. I would like to remind you that you can connect the fan by maintaining the combination, and it is easy to install.
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