There is submenu in advanced menu called smart monitoring, with 3 settings: auto, enhaced and disable. All 3 settings don't react for manual Thermal settings, DISABLE is always to Full FAN speed,ENHANCE = about 1420rpm, AUTO = 9xxrpm. Perhaps missing MANUAL set under SMART MONITORING. In any way thank you very much.

Show me image of this, I don't see any Smart Monitoring in the settings of the Advanced menu, also show me this submenu visible at root level of Advanced, so I can see where it's situated in the submenu list

* Edit, I do see this, in System Monitoring
One Of: Fan Control, VarStoreInfo (VarOffset/VarName): 0x24F
One Of Option: Enhanced, Value (8 bit): 0x0 {09 0E 1B 08 00 00 00 00 00 00 00 00 00 00}
One Of Option: Auto, Value (8 bit): 0x1 (default) {09 0E 1C 08 30 00 01 00 00 00 00 00 00 00}
One Of Option: Disabled, Value (8 bit): 0x3 {09 0E 1E 08 00 00 03 00 00 00 00 00 00 00}

Is this what you mean? If yes, I'll see if I can make a manual, but I doubt

* Edit @Bata - Disabled should always be full speed, enhance = Higher fan speeds, and auto = moderate - all as you have described?
[Enhanced]= Increase air flow and maximize CPU performance
[Auto] = Optimum temperature control and optimum CPU performance
[Disabled] = All fans set to full speed

So how is it not working, you mentioned three speeds, sounds normal and working to me.
I don't know your issue or goal there, so don't know how to advise you. I can change one of those to Silent, but no manual possible
[Silent] = Minimum fan noise, may reduce CPU performance

I wrote badly. Anything to change to the admin with the trip point and temperatures, has no effect on the fan speed under any setting of these three (enhanced, auto, disabled), in any case it is useless to set value to disabled, so if you can change in place of it (disabled) like enhanced parameters with a lower reaction temperature, so it starts earlier to accelerate rather than at 60+ degrees, where it is around 1600rpm, and I would like about 2000rpm for example.
I will post the image later from win if you want, but there is no in the bios real time hardware monitoring that gives the current state of temperature and speed, only in the windows app hardware monitoring