![]() It's not possible to adjust the fan speed through the motherboard (i.e. I think that means fan speed is adjusted by some physical means, such as a knob to turn. I'd appreciate it if anyone can confirm/correct the following.ģ-pin fans - the fan is controlled by voltage. I'm in the process of upgrading to an Ultra-120 Extreme, which requires the purchase of the fan separately. Buy it here.The world of case/CPU fans is new to me, and I want to make sure I understand what I've read about 3-pin and 4-pin fans. If you have the official case, then you can buy the case fan attachment. If you have a Raspberry Pi without a case, you won’t be able to hold the fan in place. ![]() However, there are ground pins and 3.3V power scattered around the GPIO header. If you do not want to use the fan pins suggest above, you can always check for other GPIO pins that might be better positioned for your needs.Īs you can see, there are only two 5V pins and they are clustered together. When you power your Raspberry Pi by inserting the USB-C cable, it will automatically turn on the fan. If it’s a 3.3V fan, then you’ll use the first pin on the left column.Ĭonnect the negative terminal (usually a black lead) to the ground pin, which is the third pin from the top on the right column. Hence, the first two pins on the right column are 5V pins, perfect for powering your 5V fan. In both the regular Pi and the Raspberry Pi Zeros, the SD card is defined as the “top” of the Raspberry Pi. Let’s establish what is the “top” of the Raspberry Pi. ![]() In which case, you’d want to connect the positive (usually red in colour) to a 5V pin. In all likelihood, you will probably have a 5V fan. This is important because you’ll plug the leads into different GPIO pins on the Raspberry Pi depending on voltage. ![]() You can determine that by viewing the sticker on the fan. First, you will need to know if your fan is a 5V fan or a 3.3V fan. ![]()
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