Gigabyte GA-P31-S3G User Manual page 27

11) CD_IN (CD In Connector)
You may connect the audio cable that came with your optical drive to the header.
12) SPDIF_O (S/PDIF Out Header)
This header supports digital S/PDIF out. Via an optional S/PDIF out cable, this header can connect
to an audio device that supports digital audio in. For purchasing the optional S/PDIF out cable,
please contact the local dealer.
Pin 1 (the red wire) of the S/PDIF out cable must align with pin 1 of the SPDIF_O header.
Incorrect connection may render the device unusable or even result in damage to the
device.
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Pin No. Definition
1 CD-L
2 GND
3 GND
4 CD-R
Pin No. Definition
1 Power
2 SPDIFO
3 GND
Hardware Installation