Feature Request: deactivate PWM for mainboard FAN on X1C

[SnickCH]

Is your feature request related to a problem? Please describe.
Your stock mainboard fan is not powerful enough and is unoptimised placed. Therefore are many mods to replace the stock fan with 40mm or 60mm fan. Unfortunately there are not many of this 5V fans with PWM (4pin) available. They are often expensive (20USD vs. 5 USV with no PWM).

Main situation: Mainboard cooling is not good enough.
Main issue: We can only replace the fan with PWM fans.

I'm aware that PWM may be used for "safety " reasons. In case the fan doesn't spin, the firmware will send an alarm. I don't know if the mainboard has an onboard temperature sensor - if yes, use this sensor for the alarm.

Describe the solution you'd like
An option to deactivate PWM (or an option to ignore it) so we can use other 40mm and 60mm FAN that are available (and much cheaper). Because you don't use the standard PWM layout on your fan we must crimp a new connector for our fans. If we have to do it for 4Pin (PWM) or only for 2 Pin (on a 4 pin JST connector) it doesn't matter at all.

Describe alternatives you've considered
There are no alternatives to 4PWM sensors at the moment.

Additional context
Add any other context or screenshots about the feature request here.