Cooling FAN not started with extruder heating · Issue #5940 · MarlinFirmware/Marlin · GitHub
Ivor's 3D Printing Blog: Cooling Fan speed control via Azteeg PWM Fan Pin Output
Marlin 2.0 Fan PWM frequency too low
Configuring and Using Reprap Ramps1.4 RRD Fan Extender : 3 Steps - Instructables
How to permanently move PART COOLING FAN to pin 6 (MKS GE 1.4 second servo header)
RAMPS 1.4 - Dual Fan Setup - YouTube
SKR 1.4 - Fan Control - YouTube
How to permanently move PART COOLING FAN to pin 6 (MKS GE 1.4 second servo header)
Part cooling fan not working? : r/BIGTREETECH
BUG]Part Cooling Fan not Running - after clicking on Menu it starts with 100%, not adjustable - SKR Mini E3 V2 · Issue #20670 · MarlinFirmware/Marlin · GitHub
BUG] Part cooling fan not functioning in Marlin 2.0.9.3 on SKR 1.4 Turbo · Issue #23633 · MarlinFirmware/Marlin · GitHub
Adding Parts Cooling Fan to Your 3D Printer : 3 Steps (with Pictures) - Instructables