ok now I know. There are two points: 
 
	 
 
	1)Disable all pwm in armbian-config (just dont turn them on )
 
	2) Wiring  polarity . Becouse case that I bought from ali ( geekworm ) has fan adapter from 2,5mm to 1,25 mm , but to work you have to change wiring red to black
 
	on this adapter . To make it  rather then pull I pushed them with tiny screw from the other side of connector   ,then placed in , with changed polarity and at the end 
 
	taped for security ( cause now they  are loose and can jump out  - that is dangerous )     
 
	 
 
	and works fine, only   iam concern for  attaching wiring to case.
 
	thx I am testing Your overlay , it  switchs on above 50 C