http://www.driversforfree.com/omn_ofm_omd_dt_drd/dell/latitude/x1/audio-and-sound/dell-audio-sigmatel-stac-975x-ac97-driver/search.aspx
DELL Audio: SIGMATEL STAC 975X AC97, Driver	5.10.00.4255	Mar 11, 2005	Windows 2000
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