This isn’t very practical if all you’re cooling is a small system like a Raspberry Pi,īut if you have air conditioning set up for something else, you may be able to reuse it. Refrigerated AC systems can be used to reduce the environment’s temperature. Lowering the air temperature requires some form of air conditioning. Or is there something that reacts to the CPU’s temperature to decide to turn on the fan? Lower the Air Temperature Fans come in many sizes and shapes,īut they all either blow cooler air onto the CPU or suck the hotter air away from the CPU.Īnother dimension with fans is whether they are reactive or not. The more surface area you have, the better the existing air flow affects the cooling. There are even aluminum cases that act like a very large heat sink. The simplest form are aluminum fins that are attached to the overheated chip using thermally conductive adhesives. Change the Surface AreaĬhanging the surface area is usually achieved through using various forms of heatsinks. On the flip side, putting your Raspberry Pi into an enclosed case may make it look nicer, but will usually make it harder to keep it cool. Using something other than air to conduct the heat.Changing the surface area of the radiating device.

Improving on the airflow passive cooling requires adding some sort of device that improves some aspect, such as: If you do absolutely nothing, out of the box your CPU is passively cooled by the airflow. The name of the game for cooling is conducting the heat away from the parts that get hot.Ĭooling can be divided into two categories: passive cooling and active cooling.

If you want your Raspberry Pi to continue running at its maximum speed for longer periods of time, you need to cool the CPU down. This happens progressively on the Raspberry Pi 4, the first drop goes from 1.5 GHz to 1.0 GHzĪfter the temperature reaches about 80☌ (175☏). Throttling itself to reduce the load on the CPU. When the CPU gets above a certain temperature, the Raspberry Pi will automatically start slowing itself down,

It would start having problems running properly. If the CPU were to run too hot for an extended period of time, its lifetime would be reduced and The Raspberry Pi 3 ran hotter than the models before, and the Raspberry Pi 4 runs even hotter. If you are doing anything that is CPU intensive, your Raspberry Pi heats up. How do you cool your Raspberry Pi 4? How can add your own reactive fan to the Raspberry Pi using a transistor? Intro

Fritzing raspberry pi 4