#1 These commands work on a Dell r420 (different than the r710) I bet they work on most 12 gen Dell servers, not tested.
#2 I run this commands on a local machine, as opposed to it being remote. Remote is more secure, but I have not exposed it to the internet at this time.
#3 my process is scalable, different temps yield different fan speeds as opposed to ON/OFF
#4 if you adjust one number, it trickles down the scale
I would first find the codes that can set your fan speeds and modify this to suit your needs.
I used this to get Hex codes
https://www.hexadecimaldictionary.com/hexadecimal/0xf/
This is the redit with info https://www.reddit.com/r/homelab/comments/7xqb11/dell_fan_noise_control_silence_your_poweredge/
This one had some good advice https://www.spxlabs.com/blog/2019/3/16/silence-your-dell-poweredge-server
Personal script. Feel free to modify and improve.
They are provided "as is", and I take no responsibility if they break something on your end.