Intel Motherboards - Z87 Extreme4 USB2.0 Ports Not Enabled At Power Up

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Z87 Extreme4 USB2.0 Ports Not Enabled At Power Up

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=23435
Printed Date: 14 Jan 2025 at 3:15pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: Z87 Extreme4 USB2.0 Ports Not Enabled At Power Up

Posted By: pjasrock
Subject: Z87 Extreme4 USB2.0 Ports Not Enabled At Power Up
Date Posted: 10 Apr 2022 at 8:59am

I have a ASRock Z87 Extreme4 that is working fine except that the USB2.0 ports are not enabled on power up. As a result, I cannot boot from a USB thumb drive nor use a USB keyboard and mouse in the UEFI menus. I'm only able to use the PS/2 keyboard port.

I have cleared the CMOS. Can anyone tell me how to go from there to a working USB2.0 port.

By the way, once the computer has booted in Ubuntu, the USB2.0 ports work.

Replies:

Posted By: threadzipper1957
Date Posted: 09 Aug 2022 at 9:13pm

When you enable Ultra Fast boot in the BIOS, the detection of USB ports, is disabled.
In Windows 10, it is best to disable fast boot, or Ultra Fast Boot

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Kind Regards

Posted By: pjasrock
Date Posted: 10 Aug 2022 at 12:49am

I removed a USB adapter from one of the PCI-E connector and the USB2.0 ports now work at power up. It was a Rosewill RC-509 PCI-E to USB3.1 Expansion Card.