We have a problem in that audio recording stops working and records interference instead when the Hyper-V role is installed in Windows Server 2008 R2, this is probably related to AMD-V actually being used. If we switch off AMD virtualization in the BIOS the issue goes away, unfortunately so does virtualization.
The board in question is a GA-890FXA-UD5 rev 2.1, we have a number of these. All are updated to the latest BIOS which is available for this revision of board.
Has anyone else encountered this, more importantly is there a solution?