Intel Motherboards - Z77 Extreme4

Z77 Extreme4 - USB 3.0 not working

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=2375
Printed Date: 30 Aug 2025 at 4:29am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: Z77 Extreme4 - USB 3.0 not working

Posted By: fox85
Subject: Z77 Extreme4 - USB 3.0 not working
Date Posted: 04 Apr 2016 at 4:36pm

Hi,
I have a Z77 Extreme4 motherboard and the USB 3.0 ports work only as 2.0
I've upgraded drivers both Intel and Asmedia for USB 3.0 but no change.

The issue occurs with the front and also with the rear USB 3.0

I'm using Win 7 64bit and the BIOS version is 2.90.

Strangely when I start the computer with the device already inserted it will be recognized but if I unplug the device, this is no longer recognized if I try to reconnect...if I plug this in the 2.0 port works normally.

Can anyone help?
Thanks

Replies:

Posted By: Lex Tertia
Date Posted: 22 May 2016 at 3:08pm

When you say "it will be recognized", do you mean recognized correctly as USB 3.0 Device?

I'm asking because I have the Z77 Pro with a similiar or may be the same problem. If my computer is off and I boot it up USB 3.0 are recognized as USB 2.0 only. Device Manger only lists "Generic USB-Hub".

A workaround for this is everytime I cold boot the PC (For me once a day), as soon as it boots into windows I click restart. This time the Device-Manager shows "Generic High Speed USB-Hub (SuperSpeed)" and windows stops complaining that my devices can't reach full speed. Annoying.

Like I said this only occurs on a cold start.

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Asrock Z77 Pro4
Intel i7 3770
2x8GB RAM
Geforce 770
Windows 10 Pro x64

Posted By: Lex Tertia
Date Posted: 25 Jun 2016 at 4:53pm

Found a fix for this problem in a German forum by user sapkra

http://www.windows-8-forum.net/windows-8-treiber-and-hardware/2379-usb_anschluesse-hinten-erst-neustart-erkannt-2.html" rel="nofollow - http://www.windows-8-forum.net/windows-8-treiber-and-hardware/2379-usb_anschluesse-hinten-erst-neustart-erkannt-2.html

Control Panel --> Power Options --> Choose what power buttons do --> click on "Change settings that are currently unavailable" --> uncheck "Turn on fast startup (recommended)" -- Save changes

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Asrock Z77 Pro4
Intel i7 3770
2x8GB RAM
Geforce 770
Windows 10 Pro x64