i believe giga has already put a bios out dont know if its beta but they said on reddit that it has 3 modes and 2 of them spin up when it needs to cool the chipset down, if i can link ill try find it for you.GB are already developing a solution to the constant chipset fan issue. Should be out in a few days. Check the Auros thread for source.
https://www.reddit.com/r/Amd/comments/cby8og/aorus_x570_fan_stop_profiles/
hope im fine adding the link as its not related to competition etc but sorry in advance if im not allowed to.