Enable chipset fan control on Prime x570-Pro


I was wondering if you might be able to help me out. I am trying to control the chipset fan of my Prime x570-Pro Board and I found this thread on overclock.net. I changed my bios file following the steps shown in the video and flashed it with flashrom. Unfortunately I still can’t control the speed of my fan (Can’t see the settings). Could you think of any reason as to why this is the case? Am I missing another setting?