http://www.gigabyte.com.tw/Products/Motherboard/Pr oducts_Overview.aspx?ProductID=1958
http://www.gigabyte.com.tw/Support/Motherboard/Man ual_DownloadFile.aspx?FileType=Manual&FileID=16523
On-Chip USB
Disabled Disable this function if you are not using onboard USB function.
V1.1+V2.0 Enable USB 1.1 and USB 2.0 controller. (Default value)
V1.1 Enable only USB 1.1 controller.