ASRock N68-GS4/USB3 FX R2.0 User Manual - Page 13

* There are two LED next to the LAN port. Please refer to the table below for the LAN port LED indications. LAN Port LED Indications Activity/Link LED SPEED LED ACT/LINK SPEED LED LED Status Description Status Description Off No Activity Off 10Mbps connection Blinking Data Activity Orange 100Mbps connection Green 1Gbps connection LAN Port ** To configure 7.1 CH HD Audio, it is required to use an HD front panel audio module and enable the multi-channel audio feature through the audio driver. Please set Speaker Configuration to "7.1 Speaker" in the Realtek HD Audio Manager. Function of the Audio Ports in 7.1-channel Configuration Port Function Light Blue (Rear panel) Rear Speaker Out Lime (Rear panel) Front Speaker Out Pink (Rear panel) Central /Subwoofer Speaker Out Lime (Front panel) Side Speaker Out 13