Hi Everyone !
 
I would ask a litlle question fom October 2019 since I ve built my Rig with EVGA Z370 FTW Motherboard.
Just to explain quickly, my Rear Exhaust Fan is a 4 pins Corsair 120 mm Magnetic Levitation and is plugged on the SYS_Fan Header, one of those that aren t Smart Fan Control Header Feature.
My issue is that I can t Control this one with SpeedFan Software whereas I can Control The 2 Other Ones that are respectivily plugged in the CPU2_Fan and the CHA_Fan and which they are Smart Fan Features (These 2 Last are Corsair 140 mm Magnetic Levitation Fans).
Just another information my AIO CPU Watercooling H100i Pro is Plugged in CPU1_Fan Header (which is allso a Smart Fan Control Header).
 
So, Can someone just explain me if it s a normal thing or if I ve missed something ?
Because I can easly control the 2 Other One with SpeedFan but Not the SYS_Fan (tuned to 100% in the BIOS and test with 0%).
 
Also I ve noticed than it s impossible to completly stop the fans rotation also wheen I set them to 0% in BIOS ? It could be a way ?
All the Fan Headers Are Plugged in the right orientation and all pins are correctly connected in the females Fans Headers.
 
Shot of The Z370 FTW in ATTM.
 
Thank for the reading !
Waiting for your answers !

Thank you for your answer Bob !
 
I would set the SYS_Fan as 'Smart' or 'PWM' or 'DC' mode but I can t because this option is only available for the CPU1_Fan | CPU2_Fan | CHA_Fan.
For the SYS_Fan and the others there is only a percent option and I can t select the fan mode like PWM Or DC even if they aren t Smart.
I agree with you that if it would be really cool and could solve the issue but it s a pity this option is nt available on the Z370 FTW.
I let you chheck on the screenshot in ATTM from the User Manual if have another idea maybe ?
 
Also you say you don t use SpeedFan from a long time OR you still use it again but since a long time ?
So which software are you using for now if you don't use SpeedFan ?
Maybe you only use the BIOS settings or another software like SpeedFan ?
I m use SpeedFan to Link the Fans Speed to the GPU Temperature and not to the CPU that is the only option in BIOS.
 
Thank for your patience !

ACI99-0001
OK Thank for your Tips Buddy !
 
Thank for The Splitter idea and Advice and your orientation for the link and the Header Set Up !
Thank you also for your experience Feedback and your Time !
I take it all !
 
Good Day to You !

You're welcome..Thanks, you too.

Thanks for the useful information.