Asus M4A77TD PRO User Manual - Page 38
M4A77TD PRO Digital audio connector
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7. Digital audio connector (4-1 pin SPDIF_OUT) This connector is for an additional Sony/Philips Digital Interface (S/PDIF) port. +5V SPDIFOUT GND M4A77TD PRO SPDIF_OUT M4A77TD PRO Digital audio connector Ensure that the audio device of Sound playback is VIA High Definition Audio (the name may be different based on the OS). Go to Start > Control Panel > Sounds and Audio Devices > Sound Playback to configure the setting. The S/PDIF module is purchased separately. 8. Front panel audio connector (10-1 pin AAFP) This connector is for a chassis-mounted front panel audio I/O module that supports either High Definition Audio or AC`97 audio standard. Connect one end of the front panel audio I/O module cable to this connector. GND PRESENCE# SENSE1_RETUR SENSE2_RETUR AGND NC NC NC AAFP PIN 1 PIN 1 MIC2 MICPWR Line out_R NC Line out_L PORT1 L PORT1 R PORT2 R SENSE_SEND PORT2 L M4A77TD PRO HD-audio-compliant Legacy AC'97 pin definition compliant definition M4A77TD PRO Front panel audio connector • We recommend that you connect a high-definition front panel audio module to this connector to avail of the motherboard high-definition audio capability. • If you want to connect a high definition front panel audio module to this connector, set the Front Panel Select item in the BIOS to [HD Audio]. See section 2.4.4 Onboard Device Configuration for details. 1-26 Chapter 1: Product introduction