Asus rog rampage v extreme [124/230] Usb configuration

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Chapter 3: BIOS setup

Chapter 3

3.6.5 USB Configuration

The items in this menu allow you to change the USB-related features.

The USB Devices item shows the auto-detected values. If no USB device is detected, the

item shows None.

Intel xHCI Mode [Smart Auto]

[Smart Auto] Once the xHCI driver has been detected, the USB 3.0 mode will be

supported during both POST and operating system.

[Auto] xHCI controller will be enabled and run at USB 3.0 mode when the xHCI

driver is installed in the operating system.

[Enabled] Enables the xHCI controller.

[Disabled] Disables the xHCI controller.

xHCI Legacy Support [Enabled]

[Disabled] The USB 3.0 devices can be used for the BIOS setup only and cannot be

recognized in the boot devices list.

[Enabled] Support USB 3.0 devices in legacy operating systems (OS).

[Auto] The system will automatically detect the presence of USB 3.0 devices at

startup. If any USB 3.0 device is detected, the xHCI legacy support will be

enabled.

EHCI Legacy Support [Enabled]

[Disabled] The USB 2.0 devices can be used only for the BIOS setup only and cannot

be recognized in the boot devices list.

[Enabled] Support USB 2.0 devices in legacy operating systems (OS).

[Auto] The system will automatically detect the presence of USB 2.0 devices at

startup. If any USB 2.0 device is detected, the xHCI legacy support will be

enabled.

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