I am a new member. I share similar problems and symptoms with regard to "HD audio device soundmax-a driver problem" as outlined by hkhajavi and sikstiks. I have an on board ASUS Maximus II Formula's SupremeFX X-Fi Audio Card with a normal desktop front speaker set up. The sound system was working fine only last week I got no sound come out from the system. I tried uninstall reinstalled the soundMax software and drivers from DVD that came with the MOBO: could not fix the problem then I went to the ASUSTeK Computer Inc. - Motherboards - ASUS Maximus II Formula
site downloaded and load the drivers , restart windows...AND Nothing happen. Problem remain.
In the computer management-Sound,video and game controller- SoundMax Integrated Digital HD AudioThere's the "yellow triangle" with the "!" warning sign
earlier in the computer management-Sound,video and game controller also showed the followings:
Microsoft Trusted Audio Drivers.
drivers for Microsoft Streaming Tee/Sink-to-sink Converter (Reinstalling the driver might fix the problem)
Microsoft Streaming Manager Proxy
Microsoft Streaming clock proxy
Microsoft Streaming Service Proxy
Microsoft Streaming Quality Manager proxy...
so now I am back to square 1... I am thinking reintalling Windows 7.... but there must be away without resort to this.