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The Sapphire board has a 12V fan. So, adding it to the DTS. There is no power supply directly connected, it needs the baseboard to work. If the board is used standalone then a hardware modification is needed. On the Sapphire board there is an unpopulated resistor to connect it to VBUS_TYPEC, which is usually 5V (too low) and can range up to 20V (too high). I tested it for a week connected to VCC_SYS which is 8.4V and proved to be more than enough for the required cooling needs. This is the connection described in the comment. Signed-off-by: Vicente Bergas <vicencb@gmail.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.