Asus F1A75 - Manual (Page 59)

Chapter 2: BIOS information 2-19
Legacy USB3.0 Support [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 hand-off
feature.
[Disabled] Disables the function.
2.5.4 NB Configuration
Primary Video Device [PCIE / PCI Video]
Selects the primary display device. Configuration options: [PCIE / PCI Video]
2.5.5 Onboard Devices Configuration
HD Audio Device [Enabled]
[Enabled] Enables the High Definition Audio Controller.
[Disabled] Disables the controller.
The following two items appear only when you set the HD Audio Device item to [Enabled].
Front Panel Type [HD]
Allows you to set the front panel audio connector (AAFP) mode to legacy AC’97 or high-
definition audio depending on the audio standard that the front panel audio module supports.
[HD] Sets the front panel audio connector (AAFP) mode to high definition audio.
[AC97] Sets the front panel audio connector (AAFP) mode to legacy AC’97.
SPDIF Out Type [SPDIF]
[SPDIF] Sets to [SPDIF] for SPDIF audio output.
[HDMI] Sets to [HDMI] for HDMI audio output.
Realtek LAN Controller [Enabled]
[Enabled] Enables the Realtek LAN controller.
[Disabled] Disables the controller.
Realtek PXE OPROM [Disabled]
This item appears only when you set the Realtek LAN Controller item to [Enabled] and
allows you to enable or disable the Rom Help of the Realtek LAN controller.
Configuration options: [Enabled] [Disabled]
Serial Port Configuration
The sub-items in this menu allow you to set the serial port configuration.
Serial Port [Enabled]
Allows you to enable or disable the serial port (COM).
Configuration options: [Enabled] [Disabled]