Asus MAXIMUS VI IMPACT - Manual (Page 124)

3-40 Chapter 3: BIOS setup
Chapter 3
3.6.7 Onboard Devices Configuration
Scroll down to view the other BIOS items.
HD Audio Controller [Enabled]
[Enabled] Enables the High Definition Audio Controller.
[Disabled] Disables the controller.
The following items appear only when you set the HD Audio Controller to [Enabled].
Front Panel Type [HD Audio]
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 Audio] 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 an SPDIF audio output.
[HDMI] Sets to an HDMI audio output.