The AMD High Definition Audio Device signal is passed through the HDMI and DisplayPort (including mini DisplayPort) connections on the graphics card.
Some graphics card can support HD audio via the DVI port by using a DVI-HDMI adapter. This adapter may be included with the graphics card if it supports this option. Please refer to the graphics card user manual for more information.
If an AMD APU product is being used, the audio output connections available are based on the motherboard design.