ATI Radeon HD 4600 & 4800 series support 7.1 channel HDMI audio!

Download and Install "ATI HDMI Audio Device" Driver You will need to install not only ATI Radeon Video Card Driver, but also ATI HDMI Audio Device driver. - If you are a Windows XP user, then download the ATI HDMI Audio Driver from the AMD website. - If y

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