https://forum.asrock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Mon, 20 Apr 2026 10:46:23 +0000 Tue, 11 Jul 2017 23:50:59 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://forum.asrock.com/RSS_post_feed.asp?TID=5556 https://forum.asrock.com/forum_images/web_wiz_forums_black.png https://forum.asrock.com/ https://forum.asrock.com/forum_posts.asp?TID=5556&PID=32545&title=ab350m-3pin-fan-control#32545 Author: parsec
Subject: 5556
Posted: 11 Jul 2017 at 11:50pm

manuelcro wrote: Hello guys. I need help. I can not find a way to control the speed of my 2 corsair sp 120 led fans. They are both 3pin fans, one is connected to the cha fan1(4pin connector) the other to the cha fan2(3pin connector). Is there a way to turn on dc fan control in the bios? They both work at full speed and it is annoying as hell. Please if anyone knows how to slow them down... Help.

Is that the AB350M Pro4, or the AB350M?

Regardless, check this page and click on the "Which fan type can I use on AM4 motherboard..." entry, which will show a table about the fan speed control options for all the ASRock AM4 boards.

http://www.asrock.com/microsite/AM4TSD/

The AB350M Pro4 should be able to control a three pin fan on the CHA_FAN1 header. Did you check the UEFI/BIOS to see which fan speed profile is active, it may be set to Full On.
]]> Tue, 11 Jul 2017 23:50:59 +0000 https://forum.asrock.com/forum_posts.asp?TID=5556&PID=32545&title=ab350m-3pin-fan-control#32545 https://forum.asrock.com/forum_posts.asp?TID=5556&PID=32544&title=ab350m-3pin-fan-control#32544 Author: manuelcro
Subject: 5556
Posted: 11 Jul 2017 at 11:28pm

I was affraid it will turn out that way. Well, I guess i will return the fans and get one 3 pin 600rpm and one pwm fan. Thank you]]> Tue, 11 Jul 2017 23:28:16 +0000 https://forum.asrock.com/forum_posts.asp?TID=5556&PID=32544&title=ab350m-3pin-fan-control#32544 https://forum.asrock.com/forum_posts.asp?TID=5556&PID=32543&title=ab350m-3pin-fan-control#32543 Author: pedre
Subject: 5556
Posted: 11 Jul 2017 at 11:13pm

I think that your mobo does not support fan speed control for 3-pin fans. You could try buying an external fan controller.
]]> Tue, 11 Jul 2017 23:13:15 +0000 https://forum.asrock.com/forum_posts.asp?TID=5556&PID=32543&title=ab350m-3pin-fan-control#32543 https://forum.asrock.com/forum_posts.asp?TID=5556&PID=32540&title=ab350m-3pin-fan-control#32540 Author: manuelcro
Subject: 5556
Posted: 11 Jul 2017 at 10:35pm

Hello guys. I need help. I can not find a way to control the speed of my 2 corsair sp 120 led fans. They are both 3pin fans, one is connected to the cha fan1(4pin connector) the other to the cha fan2(3pin connector). Is there a way to turn on dc fan control in the bios? They both work at full speed and it is annoying as hell. Please if anyone knows how to slow them down... Help.]]> Tue, 11 Jul 2017 22:35:03 +0000 https://forum.asrock.com/forum_posts.asp?TID=5556&PID=32540&title=ab350m-3pin-fan-control#32540