Intel Motherboards - All rear USB ports failing intermittently

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All rear USB ports failing intermittently

Printed From: ASRock.com
Category: Technical Support
Forum Name: Intel Motherboards
Forum Description: Question about ASRock Intel Motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=11320
Printed Date: 17 Oct 2026 at 1:57am
Software Version: Web Wiz Forums 12.08 - https://www.webwizforums.com

Topic: All rear USB ports failing intermittently

Posted By: rogeriodec
Subject: All rear USB ports failing intermittently
Date Posted: 16 Apr 2019 at 8:47pm

Windows 10 x64 / Intel Core i7 4790K / ASRock Z97 Extreme 4.

From time to time, the rear USB ports are failing, that is, they are turning on and off intermittently.
As a result, the devices connected to these ports are being got on and off constantly.
This seems to be an energy problem.
Strangely enough, this does not happen with the 2 front USB ports.
How to solve this?