Have you gone into windows audio and checked what the default device is?
Was finally able to get the BIOS to update. I have the Wifi board, but the name needed to be M10H.CAP even though the name of the BIOS on the support disk had it named differently. All is good now.
Another issue though, is there an alternative to getting a basic reading of memory timings that are currently set? Mem Tweakit doesn't work at all, even though it is a utility offered on the support disk along with the website.