GIGABYTE AMD Socket AM2 Processor Motherboard GA-M55S-S3 - Manual (Page 25)

Hardware Installation - 25 -
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14) CD_IN (CD In Connector)
Connect CD-ROM or DVD-ROM audio out to the connector.
Pin No. Definition
1 CD-L
2 GND
3 GND
4 CD-R 1
15) SPDIF_I (S/PDIF In Connector)
Use S/PDIF IN feature only when your device has digital output function. Be careful with the
polarity of the S/PDIF_I connector. Check the pin assignment carefully while you connect the
S/PDIF cable,incorrect connection between the cable and connector will make the device unable
to work or even damage it. For optional S/PDIF cable, please contact your local dealer.
Pin No. Definition
1 Power
2 SPDIFI
3 GND
1