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� usb configuration, Legacy usb support [enabled, Legacy usb3.0 support [enabled – Asus P8B WS User Manual

Page 95: Ehci hand-off [disabled

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ASUS P8B WS

3-19

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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.

[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.

Legacy USB3.0 Support [Enabled]

[Disabled]

Disables the function.

[Enabled]

Enables the support for USB 3.0 devices on legacy operating

systems (OS).

EHCI Hand-off [Disabled]

[Disabled]

Disables the function.

[Enabled]

Enables the support for operating systems without an EHCI

hand-off feature.

Main

Ai Tweaker

Advanced

Monitor

Boot

Tool

Exit

Enables Legacy USB support. AUTO

option disables legacy support if no

USB devices are connected. DISABLE

option will keep USB devices

available only for EFI applications.

Back

Advanced\

USB Configuration >

EFI BIOS Utility - Advanced Mode

USB Configuration

USB Devices:

1 Drive, 2 Hubs

Legacy USB Support

Enabled

Legacy USB3.0 Support

Enabled

EHCI Hand-off

Disabled