I got an Asus M2N68-AM PLUS and was trying to configure audio from the front panel so I went into the bios and changed the setting from HD Audio to AC 97 now when I connect something to the front panel it works perfect but when I connect something to the back panel also audio comes from both front and back is not possible to mute the audio from the back panel.
If I switch to HD in the bios then there is an option in realtek manager to mute back panel when front is connected but that option is not present when I use AC'97 looking for some help.

See the red circle thats where the wrench icon is when I switch to HD but its not there now as I'm on AC'97
If I switch to HD in the bios then there is an option in realtek manager to mute back panel when front is connected but that option is not present when I use AC'97 looking for some help.
See the red circle thats where the wrench icon is when I switch to HD but its not there now as I'm on AC'97