Okay, here goes! It took me a week to figure that same question out! So you get the benefit from my pain and agony! First, you have to have at least version 5 BIOS flashed, enable on-board sound. Next you have to download a driver 68mu120a (you can find the link on this BB)and install it on the IO HD.
This is the old driver set for VIA chipset.
You now have sound! Good Luck!
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