User Manual
Page 33
... Enables support for the details of these four options: [Enabled] - Enables legacy support if USB devices are allowed to use under UEFI setup and Windows / Linux OS. USB devices are connected. [Disabled] - Legacy USB Support Use this option to enter OS. [UEFI Setup Only] - If you have USB compatibility issue, it...
... Enables support for the details of these four options: [Enabled] - Enables legacy support if USB devices are allowed to use under UEFI setup and Windows / Linux OS. USB devices are connected. [Disabled] - Legacy USB Support Use this option to enter OS. [UEFI Setup Only] - If you have USB compatibility issue, it...