ASUS SABERTOOTH Z97 MARK 2 Manual Do Utilizador
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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 Mass Storage Devices item shows the auto-detected values. If no USB device is
detected, the item shows None.
detected, the item shows None.
Legacy USB Support [Enabled]
[Enabled]
Your system supports the USB devices in legacy operating systems.
[Disabled]
Your USB devices can be used for BIOS setup only and cannot be
recognized in the boot devices list.
[Auto]
Your system automatically detects the presence of USB devices at startup.
If any USB devices are detected, the legacy USB support is enabled.
Intel xHCI Mode [Smart Auto]
[Auto]
The xHCI is automatically enabled and runs at USB 3.0 mode when the
xHCI driver is installed in the operating system.
[Smart Auto]
Upon detection, the xHCI driver supports the USB 3.0 mode during both
POST and operating system.
[Enabled]
Enables the xHCI controller.
[Disabled]
Disables the xHCI controller.
EHCI Hand-off [Disabled]
[Enabled]
Enables the support for operating systems without an EHCI hand-off
feature.
[Disabled]
Disables the EHCI Hand-off support.
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