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GA-G31M-S2L/S2C Motherboard - 22 -
RJ-45 LAN Port
The Fast Ethernet LAN port provides Internet connection at up to 100 Mbps data rate. The following
describes the states of the LAN port LEDs.
Line In Jack (Blue)
The default line in jack. Use this audio jack for line in devices such as an optical drive, walkman, etc.
Line Out Jack (Green)
The default line out jack. Use this audio jack for a headphone or 2-channel speaker. This jack can
be used to connect front speakers in a 4/5.1-channel audio configuration.
Mic In Jack (Pink)
The default Mic in jack. Microphones must be connected to this jack.
Refer to the instructions on setting up a 2/4/5.1-channel audio configuration in Chapter 5,
"Configuring 2/4/5.1-Channel Audio."
Activity LED
Connection/
Speed LED
Activity LED:
State Description
Blinking Data transmission or receiving is occurring
Off No data transmission or receiving is occurring
Connection/Speed LED:
State Description
Green 100 Mbps data rate
Off 10 Mbps data rate
LAN Port
Only for GA-G31M-S2C.