Z77 Extreme4 - USB 3.0 not working

Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic

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

Author	Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic
fox85 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 04 Apr 2016 Status: Offline Points: 3	Post Options Post Reply Quote fox85 Report Post Thanks(0) Quote Reply Topic: Z77 Extreme4 - USB 3.0 not working 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

Lex Tertia Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 22 May 2016 Location: Germany Status: Offline Points: 6	Post Options Post Reply Quote Lex Tertia Report Post Thanks(0) Quote Reply 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.
	Asrock Z77 Pro4 Intel i7 3770 2x8GB RAM Geforce 770 Windows 10 Pro x64

Lex Tertia Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 22 May 2016 Location: Germany Status: Offline Points: 6	Post Options Post Reply Quote Lex Tertia Report Post Thanks(0) Quote Reply 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 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
	Asrock Z77 Pro4 Intel i7 3770 2x8GB RAM Geforce 770 Windows 10 Pro x64