(This is a sort of hobby / side project for me. Regarding logging, I haven't fully built that out in Dell Fan Management but if you run it from the command line, you will get some text log entries dumped out there. Starting in 2021 (Tiger Lake systems) they removed the old interface that HWiNFO and other tools that can deal with Dell fans were using, so WMI is the only way to go now that I am aware of. I think any Dell system from 2018+ (maybe older), desktops included, supports the same WMI interface for reading the fan speeds. I did a lot of slinking around Dell's libsmbios C code (for Linux SMBIOS support), a lot of BIOS token/variable dumps, and some reverse-engineered Dell Power Manager code to figure this out.

I am author of Dell Fan Management and I would be happy to pass along any information to help with this implementation. Sleep doesn’t work and function keys brightness takes about 30 seconds to apply unless you renable fan control and then set the fan speed to 0.Īll work that has gone into making fan control work was entirely reverse engineered with no help from dell.Hi I just noticed this thread.

Without that the fan will ramp up and then go back to the bios speed. On linux you must find a tool that lets you disable bios fan control for it work. The bios is able to smoothly ramp up the fan speed. Speedfan works well enough on windows, and there is a driver for i8k on linux so fan control is possible, but there is only three speeds.

It just has five options for poorly described curves (they don’t have any info about what temperature they are targeting and when they will ramp up.) It appears that dell does make something for their newer ones called Dell Power Manager, but this still doesn’t let you set fan curves or just manually control fan curves. There is no support from dell for fan control on their laptops.

Laptop fan control dell