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3.3.7 USB Configuration
USB 2.0 Controller
Use this to enable or disable the USB 2.0 controller.
Legacy USB Support
Use this 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 the descrip-
tions below for 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 be used under legacy
OS and UEFI setup when [Disabled] is selected. If you have USB
compatibility issues, it is recommended to select [Disabled] to enter
the OS.
[UEFI Setup Only] - USB devices are allowed to be used only under
UEFI setup and Windows / Linux OS.
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