Asus MAXIMUS VII FORMULA WATCH DOGS User Guide - Page 125

USB Configuration, Legacy USB Support [Enabled], Intel xHCI Mode [Smart Auto]

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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. Legacy USB Support [Enabled] [Disabled] The USB devices can be used only for the BIOS setup program. It cannot be recognized in boot devices list. [Enabled] Enables the support for USB devices on legacy operating systems (OS). [Auto] Allows the system to detect the presence of USB devices at startup. If detected, the USB controller legacy mode is enabled. If no USB device is detected, the legacy USB support is disabled. 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. EHCI Hand-off [Disabled] This item is set to [Disabled] by default for the EHCI (enhanced host controller interface) support by EHCI drivers in operating systems. [Disabled] [Enabled] Support EHCI by EHCI drivers for operating systems with EHCI support. Support EHCI by BIOS for operating systems without EHCI support. USB Single Port Control Allows you to enable or disable the individual USB ports. Refer to the Motherboard layout section for the location of the USB ports. ASUS MAXIMUS VII FORMULA 3-37 Chapter 3

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ASUS MAXIMUS VII FORMULA
3-37
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
.
Legacy USB Support [Enabled]
[Disabled]
The USB devices can be used only for the BIOS setup program. It cannot
be recognized in boot devices list.
[Enabled]
Enables the support for USB devices on legacy operating systems (OS).
[Auto]
Allows the system to detect the presence of USB devices at startup. If
detected, the USB controller legacy mode is enabled. If no USB device is
detected, the legacy USB support is disabled.
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.
EHCI Hand-off [Disabled]
This item is set to [Disabled] by default for the EHCI (enhanced host controller interface)
support by EHCI drivers in operating systems.
[Disabled]
Support EHCI by EHCI drivers for operating systems with EHCI support.
[Enabled]
Support EHCI by BIOS for operating systems without EHCI support.
USB Single Port Control
Allows you to enable or disable the individual USB ports.
Refer to the
Motherboard layout
section for the location of the USB ports.