This is a knock-off of the infamous Cmedia CMI8738
sound chip. Use the Search this Forum
button (top right of this sound forum) to locate previous identical threads with answers. Use "CMI8738"
as the search criteria.
Product info: http://www.pctekonline.com/aspro4chan32.html
Or you can download and use a generic driver from the Cmedia website.
Please do not post driver requests in our Tech Support forum. We have a Driver Request forum
which is where I have moved this thread to.