MSI MS-6791 Manual page 26

MS-6791 M-ATX Mainboard
CD-In Connector: CD_IN1
This connector is provided for CD-ROM audio.
Modem-In Connector: MDM_IN1
The connector is for modem with internal audio connector.
Aux Line-In Connector: CD_IN2
The connector is for DVD add-on card with Line-in connector.
Mono_Out
GND
Phone_In
2-22
R
GND
L
MDM_IN1
CD_IN1
R
GND
L
CD_IN2