AB350 Gaming-ITX/ac - fan 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=10130
Printed Date: 23 Jul 2025 at 6:27pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: AB350 Gaming-ITX/ac - fan control not working
Posted By: MattG
Subject: AB350 Gaming-ITX/ac - fan control not working
Date Posted: 12 Nov 2018 at 12:49am
Motherboard is AB350 Gaming-ITX/ac with Ryzen 2400G CPU, BIOS version 4.90. Fan control is not working. That is, the fan speed stays constant, and does not rise when temperature increases. I have three total fans, all 4-pin PWM: front chassis, CPU, rear chassis. None of them change speeds with increase in MB or CPU temperature.
I've seen several posts on a similar topic, http://forum.asrock.com/forum_posts.asp%3cTID=9701&title=fatal1ty-b450-gaming-k4-fan-control-doesnt-work" rel="nofollow - such as this one . But my motherboard has no "tctl" option.
I recently upgraded the BIOS to v4.50. I feel like the automatic fan control used to work, but I haven't checked/tested in quite a while.
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Replies:
Posted By: MattG
Date Posted: 25 Nov 2018 at 8:11am
Posted By: kschendel
Date Posted: 27 Nov 2018 at 2:26pm
Not sure about that motherboard, but on my Taichi, I recall that Tctrl wasn't available in the point-and-click FANtastic screen. however if you scroll down below the fantastic option, I think you have the ability to enter individual fan temperature settings manually and that's where you can select Tctrl. My machine is doing critical stuff at the moment or I'd reboot it and get the details for you.
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Posted By: WinWiz
Date Posted: 08 Dec 2018 at 9:46am
I'm using manual fan control on my fatality
ab350itx with bios 4.9 But the temperatures doesn't match, so I have to set the low temperature to something like 45° -And ramp up from there.
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