Q: My motherboard with Realtek ALC662 audio codec supports 5.1 channel HD Audio. But it has 3 audio connectors (Light blue, Lime and Pink) on the rear audio panel. How do I connect my 5.1 channel speakers to the rear audio panel?(2008/3/24) A: Please refer to following steps to connect your 5.1 channel speakers:
1. Connect the "Rear Speaker" to Line In (Light blue) port
2. Connect the "Front Speaker" to Line Out (Lime) port
3. Connect the "Central / Subwoofer" to Microphone (Pink) port
4. Adjust the "Audio I/O" setting to "6CH Speaker" in REALTEK Audio Management. Please refer to the following picture: