3.6.5USB Configuration

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

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The Mass Storage Devices item shows the auto-detected values. If no USB device is 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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Chapter 3: BIOS setup