AMD Motherboards - Only one of two front USB ports working

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Only one of two front USB ports 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=12548
Printed Date: 01 Aug 2025 at 10:49am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: Only one of two front USB ports working

Posted By: DonSchlock
Subject: Only one of two front USB ports working
Date Posted: 29 Sep 2019 at 3:19pm

One of the front USB ports of my Asrock B450M Pro4 mainboard is not working at all. The other one is working fine. BIOS is 3.60 which is running fine under Windows 10 Pro. There is no issue shown in Windows device manager. I also tried to remove the Windows driver manually and reboot the system. It ends in the same result. Everything is working except that one front USB. I also checked the mainboard connector. The strange thing is that I installed Windows from USB stick using that no longer working port. After that I upgraded BIOS from 3.30 to 3.60.
Are there any ideas what to do?