Print Page | Close Window

ab350 pro4 chasis fan1 speed control not working

Printed From: ASRock.com
Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=4863
Printed Date: 29 Mar 2024 at 6:03pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com


Topic: ab350 pro4 chasis fan1 speed control not working
Posted By: boltless
Subject: ab350 pro4 chasis fan1 speed control not working
Date 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.



Replies:
Posted By: y3llo
Date 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.


Posted By: boltless
Date Posted: 17 Apr 2017 at 12:46am
Confirmed.
I should have seen faq in advance.
Thank you.


Posted By: Nerio_Lab
Date Posted: 17 Apr 2017 at 1:57am
In UEFI choose DC or PWM mode.

-------------
The One


Posted By: boltless
Date 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.


Posted By: ruspartisan
Date 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.



Print Page | Close Window

Forum Software by Web Wiz Forums® version 12.04 - http://www.webwizforums.com
Copyright ©2001-2021 Web Wiz Ltd. - https://www.webwiz.net