ASROCK B150M Pro4/D3 Handbuch Seite 6

** To conigure 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 Coniguration to "7.1 Speaker"in the Realtek HD Audio Manager.
Function of the Audio Ports in 7.1-channel Coniguration:
Port
Light Blue (Rear panel)
Lime (Rear panel)
Pink (Rear panel)
Lime (Front panel)
4
Function
Rear Speaker Out
Front Speaker Out
Central /Subwoofer Speaker Out
Side Speaker Out