USB Issue.

[childe00]

I recently bought a GIGABYTE GA-Z68MA-D2H-B3 LGA 1155 Intel Z68 HDMI SATA 6Gb/s USB 3.0 Micro ATX Intel Motherboard with a core i5 processor. After hours of troubleshooting, the problem I am facing is my USB ports. I have one device plugged into my USB port (my mouse) and if I plug in another device my computer wont even boot. The BOIS will post and then I get to the windows splash screen with the 4 colors flying in(windows 7 64 bit)... it just hangs here. I plugged in another usb device and it did the same thing. Is there a bois setting I need to change so my computer can use USB devices? I'm stumped. Any help appreciated. 

[Wigpo]

What happens if you connect the USB devices after windows have reached the desktop?

Have you tried different USB ports?

[childe00]

I heard the windows "dinng' noise but the device wont show up. I installed the USB 3.0 drivers and tried all the ports. I am not even sure why my mouse is working. I disabled legacy and other BIOS options but no success.

[Wigpo]

If you look in device manager, are there any devices with yellow triangles?

Does the USB devices appear in the device manager after you hear the sound?