So I pondered a fan speed controller, designed to work alongside Raspberry Pi OS’ in-built fan on-off controller (circuit below, more detail here). It needs only to be inserted into the negative lead ...

A mini fan controller for Raspberry Pi Raspberry Pi 4 runs pretty warm – not only the main processor, but a couple of the other chips too.

Adding a fan to the Raspberry Pi 4 official case-YouTube When Geerling measured the temperature of Raspberry Pi 4 in operation, it was a high temperature of about 84 degrees at the maximum.

Raspberry Pi enthusiasts may be interested in a new cooling hat designed specifically for the Raspberry Pi 4 mini PC and aptly named the Smart Fan.

In conclusion, Carter Multz’s Raspberry Pi 4 case with a Noctua fan mount is a well-thought-out solution for anyone looking to enhance their Raspberry Pi 4’s performance and longevity.

Then again, you can't easily access those pins inside the case anyway. The Raspberry Pi 4 Case Fan goes for a measly $5, bringing the total combination to $10 if you don't have the official case yet.

More Raspberry Pi goodies arrive, this time it's a $5 fan to stop a Raspberry Pi 4 from throttling back CPU performance.