Usb Configuration - ASROCK FM2A85X Extreme4-M User Manual

3.4.7 USB Configuration

USB 2.0 Controller
Use this item to enable or disable the use of USB 2.0 controller.
USB 3.0 Controller
Use this item to enable or disable the use of USB 3.0 controller.
Legacy USB Support
Use this option to select legacy support for USB devices. There
are four configuration options: [Enabled], [Auto], [Disabled] and
[UEFI Setup Only]. The default value is [Enabled]. Please refer to
below descriptions for the details of these four options:
[Enabled] - Enables support for legacy USB.
[Auto] - Enables legacy support if USB devices are connected.
[Disabled] - USB devices are not allowed to use under legacy
OS and UEFI setup when [Disabled] is selected. If you have USB
compatibility issue, it is recommended to select [Disabled] to enter
OS.
[UEFI Setup Only] - USB devices are allowed to use only under
UEFI setup and Windows / Linux OS.
Legacy USB 3.0 Support
Use this option to enable or disable legacy support for USB 3.0
devices. The default value is [Enabled].
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