ab350 pro4 chasis fan1 speed control not working

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   If you plan to adjust fan speeds according to CPU temperatures and your cooler's fan is PWM-controlled, you can connect cooler's fan to the problematic header (Chassis fan 1), and connect the case fan to CPU header, and change control method from PWM to DC. It's a dirty hack, but may work.

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ruspartisan Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 24 Apr 2017 Status: Offline Points: 7	Post Options Post Reply Quote ruspartisan Report Post Thanks(0) Quote Reply Topic: ab350 pro4 chasis fan1 speed control not working Posted: 25 Apr 2017 at 12:21am
	If you plan to adjust fan speeds according to CPU temperatures and your cooler's fan is PWM-controlled, you can connect cooler's fan to the problematic header (Chassis fan 1), and connect the case fan to CPU header, and change control method from PWM to DC. It's a dirty hack, but may work.

boltless Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 02 Apr 2017 Location: south korea Status: Offline Points: 11	Post Options Post Reply Quote boltless Report Post Thanks(0) Quote Reply Posted: 17 Apr 2017 at 10:04am
	there is no option for choose dc or pwm in bios. according to faq.. just auto detect fan type in chasis fan 2, 3.

Nerio_Lab Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 19 Nov 2015 Location: Novorossia Status: Offline Points: 28	Post Options Post Reply Quote Nerio_Lab Report Post Thanks(0) Quote Reply Posted: 17 Apr 2017 at 1:57am
	In UEFI choose DC or PWM mode.
	The One

boltless Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 02 Apr 2017 Location: south korea Status: Offline Points: 11	Post Options Post Reply Quote boltless Report Post Thanks(0) Quote Reply Posted: 17 Apr 2017 at 12:46am
	Confirmed. I should have seen faq in advance. Thank you.

y3llo Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 07 Apr 2017 Status: Offline Points: 22	Post Options Post Reply Quote y3llo Report Post Thanks(1) Quote Reply Posted: 16 Apr 2017 at 11:23pm
	Can confirm. I found in a FAQ somewhere that chassis 1 does not work with 3 pin. Other fan connectors work fine with 3 pin.

boltless Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 02 Apr 2017 Location: south korea Status: Offline Points: 11	Post Options Post Reply Quote boltless Report Post Thanks(0) Quote Reply Posted: 16 Apr 2017 at 12:25pm
	ab350 pro4, the 3-pin (DC mode) fan speed of chasis fan 1 jumper is not adjusted. chasis fans jumper 2 and jumper 3 have good speed control with 3-pin fan. Edited by boltless - 16 Apr 2017 at 12:31pm