GA-Z77X-UD3H USB 3.0 ports not working for 2.0 devices #Hackintosh

Hi



This is my first build of Hackintosh and it goes better than I have expected.



I am able to setup almost everything except the only trouble left - USB 3.0 ports.



It seems only the 2.0 ones at the front panel works.



All 3.0 ones, either on back-panel or front-panel, are not working for 2.0 devices.

Since I only have 2.0 devices, I cannot tell if they work for 3.0 devices or not.

But they do show up in system report as "USB 3.0 SuperSpeed Bus" or "USB 3.0 highspeed bus"



Here's my setup



CPU: i7 3770

MB: GA-Z77X-UD3H

Memory: Corsair 8Gx2

SSD: Plextor 120G

HD: WD 3T

Display: Intel built-in , NO external



Multibeast choices:

* UserDSDT or DSDT-Free Installation

* Audio: VoodooHDA VT2021 0.2.7.2

* Misc: PS/2 Keyboard/Mice and Trackpads

* Network: Atheros - Shaillua's ALEXethernet v1.0.2



Is there anyway to make it work ?



Any successful story to share ?



Thanks a lot in advance