2.5.3USB 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]

[Enabled]

Enables the support for USB devices on legacy operating systems (OS).

[Disabled]

The USB devices can be used only for the BIOS setup program.

[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]

This item appears only when you set the previous item to [Auto] or [Enabled].

[Enabled]

Enables the support for USB 3.0 devices on legacy operating systems

 

(OS).

[Disabled]

Disables the function.

EHCI Hand-off [Disabled]

[Enabled]

Enables the support for operating systems without an EHCI handoff

 

feature.

[Disabled]

Disables the function.

2.5.4NB Configuration

IGFX Multi-Monitor [Disabled]

Enables or disables the Internal Graphics Device Multi-Monitor support for add-on VGA devices. And the memory size of Internal Graphics Device will keep memory reserved. Configuration options: [Disabled] [Enabled]

Primary Video Device [PCIE / PCI Video]

Selects the primary display device. Configuration options: [IGFX Video] [PCIE / PCI Video]

Integrated Graphics [Auto]

Enables the integrated graphics controller. Configuration options: [Auto] [Force]

UMA Frame Buffer Size [Auto]

This item appears only when you set the previous item to [Force] and allows you to set the UMA Frame Buffer Size. Configuration options: [Auto] [32M] [64M] [128M] ~ [2G]

2.5.5Onboard Devices Configuration

HD Audio Device [Enabled]

[Enabled]

Enables the High Definition Audio Controller.

[Disabled]

Disables the controller.

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Chapter 2: Getting started