Asus P6X58-E WS - Manual (Page 62)

9. Digital audio connector (4-1 pin SPDIF_OUT)
This connector is for an additional Sony/Philips Digital Interface (S/PDIF)
port(s). If you are using ASUS HDMI-equipped graphics card, connect the
HDMI card to this connector with a S/PDIF out cable.
The S/PDIF out cable is purchased separately.
10. 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, ensure 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]. See page 3-25 or details.
2-38 Chapter 2: Hardware information