I also have this board and would like to find the proper kext for my build. I currently use the VoodooHDA.kekt with the PrefPane and it "works" but it is too quiet. Plus, I also want to use a jumper from the SPDIF out on the motherboard to run sound through the HDMI port on my 9500gt graphics card. Not sure if the Voodoo kext will support that or not (haven't tried it.) If you find the solution, I'd love to hear it! Other than that, this board has been a breeze to set up and is super stable and compatible for a hackintosh.