Gigabyte GA-990FX User Manual page 11

RJ-45 LAN Port
The Gigabit Ethernet LAN port provides Internet connection at up to 1 Gbps data rate. The following
describes the states of the LAN port LEDs.
Connection/
Connection/Speed LED:
Speed LED Activity LED
State
Orange
Green
Off
LAN Port
Center/Subwoofer Speaker Out
Use this audio jack to connect center/subwoofer speakers in a 5.1/7.1-channel audio configuration.
Rear Speaker Out
This jack can be used to connect rear speakers in a 4/5.1/7.1-channel audio configuration.
Optical S/PDIF Out Connector
This connector provides digital audio out to an external audio system that supports digital optical audio.
Before using this feature, ensure that your audio system provides an optical digital audio in connector.
Line In
The line in jack. Use this audio jack for line in devices such as an optical drive, walkman, etc.
Line Out
The line out jack. This jack supports audio amplifying function. For better sound quality, it is recommended
that you connect your headphone/speaker to this jack (actual effects may vary by the device being used).
Use this audio jack for a headphone or 2-channel speaker. This jack can be used to connect front speakers
in a 4/5.1/7.1-channel audio configuration.
Mic In
The Mic in jack.
If you want to install a Side Speaker, you need to retask either the Line in or Mic in jack to be Side
Speaker out through the audio driver. Please visit GIGABYTE's website for more software information.
• When removing the cable connected to a back panel connector, first remove the cable from your
device and then remove it from the motherboard.
• When removing the cable, pull it straight out from the connector. Do not rock it side to side to
prevent an electrical short inside the cable connector.
Activity LED:
Description
State
1 Gbps data rate
Blinking
100 Mbps data rate
Off
10 Mbps data rate
- 11 -
Description
Data transmission or receiving is occurring
No data transmission or receiving is occurring