https://forum.asrock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Sun, 19 Apr 2026 03:47:49 +0000 Sun, 29 Aug 2021 16:44:24 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://forum.asrock.com/RSS_post_feed.asp?TID=19488 https://forum.asrock.com/forum_images/web_wiz_forums_black.png https://forum.asrock.com/ https://forum.asrock.com/forum_posts.asp?TID=19488&PID=89935&title=x570-steel-legend-cpu-fan1-2-broken#89935 Author: ezakimak
Subject: 19488
Posted: 29 Aug 2021 at 4:44pm

This is with the latest bios 3.80.]]> Sun, 29 Aug 2021 16:44:24 +0000 https://forum.asrock.com/forum_posts.asp?TID=19488&PID=89935&title=x570-steel-legend-cpu-fan1-2-broken#89935 https://forum.asrock.com/forum_posts.asp?TID=19488&PID=89934&title=x570-steel-legend-cpu-fan1-2-broken#89934 Author: ezakimak
Subject: 19488
Posted: 29 Aug 2021 at 4:43pm

There seems to be a bug with how the motherboard handles CPU_FAN1 and CPU_FAN2.

I can plug in a 4-pin fan to either by itself, and it works just fine.
I can plug in a 3-pin fan to either by itself, and it works just fine.

However, if I plug in a 3-pin fan and a 4-pin fan at the same time to CPU_FAN1 and CPU_FAN2, regardless of which one is which, the 3-pin fan spins but the 4-pin fan will not spin at all--no setting in the motherboard will change it.

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