Asus P8Q77-M2 Specifications download pdf (Page 65)

Chapter 2: BIOS information 2-21

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]

[Enabled] Enables the support for USB 3.0 devices on legacy operating systems

(OS).

[Disabled] Disables the function.

Intel xHCI Mode [Enabled]

Allows you to select an operation mode for the Intel xHCI controller. Conguration options:

[Smart Auto] [Auto] [Enabled] [Disabled]

EHCI Hand-off [Disabled]

[Enabled] Enables the support for operating systems without an EHCI hand-off

feature.

[Disabled] Disables the function.

2.5.9 Onboard Devices Conguration

HD Audio Controller [Enabled]

[Enabled] Enables the High Denition Audio Controller.

[Disabled] Disables the controller.

The following item appears only when you set the HD Audio Controller item to [Enabled].

Front Panel Type [HD]

Allows you to set the front panel audio connector (AAFP) mode to legacy AC’97 or high-

denition audio depending on the audio standard that the front panel audio module supports.

[HD] Sets the front panel audio connector (AAFP) mode to high denition audio.

[AC97] Sets the front panel audio connector (AAFP) mode to legacy AC’97

Intel LAN Controller [Enabled]

[Enabled] Enables the Intel LAN controller.

[Disabled] Disables the controller.

Disable ME subsystem before you disable the LAN controller.

Intel PXE OPROM [Disabled]

This item appears only when you set the previous item to [Enabled] and allows you to enable

or disable the PXE OptionRom of the Intel LAN controller. Conguration options: [Enabled]

[Disabled]

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Asus P8Q77-M2 Specifications Page 65