Question How do I connect case fans and pwm cable?

[Leereichel1]

I have a Z390 motherboard with an i9900k cpu. The case has a cable labeled PWM - where does it go on my mobo? Also, do I connect the case fans with their 3 pin connectors to the 3 pin side of the fan hub or the 4 pin side? I have seen it connected to 4 pin side.

 

[Violett]

What case is it ?

 

[Leereichel1]

Fractal Design R6

 

[Violett]

Look on your case manual at the page no.7:

1. Your PWM case cable is from the case fan preinstalled on the back of the case. Will be installed to the PWM fan hub in the 3 Pin side connectors.
2. The same with the other case fans.

3. The 4 Pin side of the PWM fan hub will be used for CPU fan ( CPU aircooler ) or radiator fans ( CPU watecooler).
4. Connect the PWM fan hub cable to the CPU_FAN connector on your motherboard.
5. Connect the PWM fan hub to a SATA power connector too.
https://www.fractal-design.com/media/ce46a531-d80e-4c10-82c9-ae19d42d53e7
Good luck !