B450M Steel Legend fans broken with latest bios£
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=21108
Printed Date: 22 Dec 2024 at 2:09pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: B450M Steel Legend fans broken with latest bios£
Posted By: Mistral
Subject: B450M Steel Legend fans broken with latest bios£
Date Posted: 16 Jan 2022 at 1:23am
My B450M SL came with P3.30 and I had set a custom fan PWM profile for the chassis fans that started with 3% at 50 degrees (as with my fans that results in 400 rpm) and so on and everything worked beautifully.
Yesterday, I decided I might as well update to P4.20 - update went well, then I did the load bios defaults and an extra restart, then went back into bios to set everything again the way I liked it.
Thing is, upon restart, my chassis fans run max speed, as if the profile was not saved. If I go back in bios, the setting are there, and the moment I start editing them I can hear they kick in and run the fans at the intended speeds. All is good, until I shut down or restart the PC, when fans run full-blast again.
Any solution to this? Anyone else experienced that problem with the latest bios?
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Replies:
Posted By: Mistral
Date Posted: 18 Jan 2022 at 10:04am
Minor update: installing ASRock's "A-Tuning" enables the correct rpm in Windows. That's an OK workaround, but it would be better if things worked right out of bios like before.
EDIT: I take the above back, partially. Even with A-Tuning installed, the fan profile only works correctly some of the time... Is nobody else experiencing this issue?
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Posted By: hisnbarg
Date Posted: 04 Feb 2022 at 4:55pm
Similar issue with different mainboard (X370 Pro4); updated to the latest version (7.10) and now chassis fans spin at 100%.
I managed to control the fans with SpeedFan, but until Windows is
booted up, it's extremely noisy.
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