ASRock B75TM-ITX User Manual - Page 59

USB Configuration

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3.4.9 USB Configuration USB 2.0 Controller Use this to enable or disable the USB 2.0 controller. USB 3.0 Controller Use this to enable or disable the USB 3.0 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 descriptions 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. Legacy USB 3.0 Support Use this to enable or disable legacy support for USB 3.0 devices. The default value is [Enabled]. USB Compatibility Patch Please enable this if your USB devices encounter compatibility problems. 59

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59
3.4.9
USB Configuration
USB 2.0 Controller
Use this to enable or disable the USB 2.0 controller.
USB 3.0 Controller
Use this to enable or disable the USB 3.0 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.
Legacy USB 3.0 Support
Use this to enable or disable legacy support for USB 3.0 devices.
The default value is [Enabled].
USB Compatibility Patch
Please enable this if your USB devices encounter compatibility
problems.