Asus P5QC - Manual (Page 60)

2-34 Chapter 2: Hardware information
11. Front panel audio connector (10-1 pin AAFP)
This connector is for a chassis-mounted front panel audio I/O module that
supports either HD Audio or legacy AC`97 audio standard. Connect one end
of the front panel audio I/O module cable to this connector.
• We recommend that you connect a high-definition front panel audio
module to this connector to avail of the motherboard’s high-definition audio
capability.
• If you want to connect a high-definition front panel audio module to this
connector, make sure that the Front Panel Type item in the BIOS is set
to [HD Audio]. If you want to connect an AC' 97 front panel audio module
to this connector, set the item to [AC97]. Refer to 3.5.3 Onboard Device
Configuration for details.