# Introduction By default, Apple runs your Mac’s fans automatically,with no way to configure them.The biggest problem is that they ramp up only when your Mac gets very hot;it throttles your CPU, slowing it down significantly until the temperature gets under control. This problem has been adressed on macOS with the release of many utilities like Crystal Idea's [MacsFanControl](https://www.google.com/url?sa=t\&rct=j\&q=\&esrc=s\&source=web\&cd=\&cad=rja\&uact=8\&ved=2ahUKEwiXqYys_ursAhXSCRAIHUR0ARAQFjAAegQICRAD\&url=https://crystalidea.com/macs-fan-control\&usg=AOvVaw3ECSC5l55qUo40DdH11UYi),eidac's [smcFanControl](https://www.eidac.de/) and others,that let users adjust their fan's speed to their liking. Such utilities were ported to Windows,but not for Linux,leaving Mac users running Linux,or Mac users moving to Linux in the shadow. Fortunately,many devoted developers have written tools like those for Linux.They may not be as feature-rich as their macOS alternatives,but they are doing a great job at handling fan control and the best part : **They are free and open-source!** --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://datcu-andrei-2.gitbook.io/maclinuxfancontrol/master.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.