Windows 7: Front headphone jack does not mute rear speakers

Asus M4A78-EM motherboard using Realtek drivers from Asus site.

The front headphone jack did not work until I installed the Realtek drivers from the Asus site.

Actually they didnt work until I checked on Disable Front Panel Detection. That got it going but the rear speakers are still playing.

Mute the Rear Output Device When Front Input Is Plugged In is checked on.

From what I've read this is simply a result of having the front audio panel set up as AC97 instead of HDA. 5 wires versus 7(or is it 9)

I'll include some pics. First one is how the wires are currently configured and the second is a page from the manual.

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With 2 extra pins on the left end of the front audio board not being used I'm wondering what they might be for? Are they not used or would running 2 wires from those pins to the Presence and Sense_send connectors on the audio header on the mb do anything.



Or are there an extra 4 wires used on an HDA front panel? Presence, Sense_send, Sense1_Retur and Sense2_Retur.

TIA

Hi FrostyWinnipeg and welcome to Windows 7 Forums

Have a look at this: AC'97 and HD audio front panel layouts