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Bios setup usb configuration – DFI ES121-LR User Manual

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BIOS Setup

USB Configuration

This section is used to configure USB devices.

BIOS SETUP UTILITY

v02.61 (C)Copyright 1985-2006, American Megatrends, Inc.

← →

Select Screen

↑↓

Select Item

+-

Change Option

F1

General Help

F10 Save and Exit

ESC Exit

USB Configuration

Module Version - 2.24.5-14.4

USB Devices Enabled :

None

Legacy USB Support

USB 2.0 Controller Mode

BIOS EHCI Hand-Off

Advanced

[Enabled]

[HiSpeed]

[Enabled]

Legacy USB Support

Enabled
Enables Legacy USB.
Auto
Disables support for Legacy when no USB devices are connected.
Disabled
Keeps USB devices available only for EFI applications.

USB 2.0 Controller Mode

Configures the USB 2.0 controller in HiSpeed (480Mbps) or FullSpeed
(12Mbps).

BIOS EHCI Hand-Off

This is a workaround for OSes that does not support EHCI hand-off. The EHCI
ownership change should be claimed by the EHCI driver.

Enables support for

legacy USB. AUTO

option disables

legacy support if

no USB devices are

connected.