Programmatically access CPU fan on a laptop? (Windows)

Question

Is there a Windows standard way to do things such as \"start fan\", \"decrease speed\" or the like, from C/C++?

I have a suspicion it might be ACPI, but I am a frail

Answer 1

ACPI may or may not allow you to adjust the fan settings. Some BIOS implementations may not allow that control though -- they may force control depending on the BIOS/CMOS settings. One might be hard-pressed for a good use case where the BIOS control (even customized) is insufficient. I have come across situations where the BIOS control indeed was insufficient, but not for all possible motherboard platforms.