I've actually looked at the manual for your mobo and I don't see a header connector for your front mic and headphobes. Usually, there is one...but it depends on the mobo. I've looked at the schematics of the board and it shows a header connector for USB connectors 1 & 2, and also the HDD LED, Reset and Power...but no Spkr/Mic. It does show an onboard speaker, but that isn't helping us.
If it's not on the mobo...then you can't do it.