Gigabyte GA-M55plus-S3G User Manual page 26

14) SPDIF_IO (SPDIF In/Out)
The SPDIF output is capable of providing digital audio to external speakers or compressed AC3
data to an external Dolby Digital Decoder. Use this feature only when your stereo system has
digital input function. Use SPDIF IN feature only when your device has digital output function.
Be careful with the polarity of the SPDIF_IO connector. Check the pin assignment carefully while
you connect the SPDIF cable, incorrect connection between the cable and connector will make the
device unable to work or even damage it. For optional SPDIF cable, please contact your local
dealer.
15) CLR_CMOS (Clear CMOS)
You may clear the CMOS data to its default values by this header. To clear CMOS, temporarily
short the two pins. Default doesn't include the jumper to avoid improper use of this header.
GA-M55plus-S3G Motherboard
Pin No.
1
2
1 2
3
5 6
4
5
6
Open: Normal
Short: Clear CMOS
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Definition
Power
No Pin
SPDIF
SPDIFI
GND
GND