Hi noticed quite a few problems with windows 7 sound, like myself, anyone who has SoundMax onboard audio might try downloading this updated driver, it worked for me.
It seems to be for Asus boards so don't know if it will work with others, you also get message of no codec installed and that it is not for this system, but has solved my sound issues.
It's great that you found a solution to your sound issues on Windows 7 with the SoundMax onboard audio by updating the driver. Updating drivers can often resolve various hardware-related problems. For users facing similar issues with SoundMax onboard audio on Asus boards, using the updated driver version 5.12.01.4070 Rev. A might help improve sound performance. Here is the link to download the updated driver: SoundMax Integrated Digital Audio Driver v 5.12.01.4070 Rev. A - TechSpot Drivers Hopefully, this information helps others experiencing sound problems with their systems. Thank you for sharing your solution!