ASROCK PRO Series User Manual page 42

Front Panel Audio Header
(9-pin HD_AUDIO1) (see p.6, No. 22)
This header is for connecting audio devices to the front audio panel.
High Definition Audio supports Jack Sensing, but the panel wire on the chassis must
support HDA to function correctly. Please follow the instructions in our manual and
chassis manual to install your system.
HD_AUDIO1
GND
PRESENCE#
MIC_RET
OUT_RET
1
OUT2_L
J_SENSE
OUT2_R
MIC2_R
MIC2_L
B550M Pro SE
39