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Question (Q&A-70|245): I install ATI 2xxx, 3xxx, 4xxx series PCIE VGA card on the motherboard. After installing all Windows® XP drivers from the motherboard, it still shows an unknown "audio device on the high definition audio bus." message under device manager. What could I try?(1/12/2009)
Answer:There is an integrated audio chip in the ATI 2xxx, 3xxx, 4xxxx series graphics cards.
Please install ATI HDMI audio driver.