Hello I'm using a Gigabyte GA-990FXA-UD3 mobo that has been working fine for months. All of a sudden audio doesn't work (red X on the speaker icon). My speakers work fine and I've uninstalled and reinstalled audio drivers from Realtek website and Gigabyte website as well, to no avail. When I open Device Manager I see two High Definition Audio Controller's (one is fine and the other has a yellow exclamation mark) and one of my four Standard OpenHCD USB to Host Controller also has a yellow exclamation mark and both say "This device cannot find enough free resources that it can use. (Code 12)." I made a partition in my hard drive to reinstall Windows 7 and that fixed the audio but I would really like an answer that didn't involve reinstalling. If no answers could help then I guess I would go buy a sound card or if all else fails...reinstall xP Thank you for reading this very long thread!