You have to find out what model number you audio component has. Since the Vista (and hopefully 7) driver only works for a couple of models: The Sigmatel AC97 audio driver is for Windows Vista, Windows XP or Windows 2000.

Technically, it is the rather long winded: Sigmatel C-Major STAC 9750 AC97 WDM Audio Driver. Whatever way you want to label it, the driver package installs version 5. Download Amiri Baraka The Dutchman Pdf File on this page. 1 of the driver onto your system and can be used as an update to an earlier driver or as part of a new installation. The driver can be used for the following Sigmatel models: STAC 9200, STAC 9204, STAC 9205, STAC 9220, STAC 9221, STAC 9223, STAC 9227, STAC 9228, STAC 9229, STAC 9230, STAC 9254, STAC 9255, STAC 9271, STAC 9272, STAC 9273, STAC 9274.

Good read, but the 'compatibility mode' is the sticking point. Long frustrating search - finally this worked: FWITW: i was able to add gpedit to Group Policy (see windowsseven forum tutorials) but 'compatibility' does not show in drop down list of options - only one entry '16 bit (something)', nor does it show on any 'Properties' tabs. So that effort was a bust. I finally successfully re-installed Dell Sigmatel Driver 'R99254' using 'Troubleshooter' then picking 2nd option, which is NOT the 'recommended' but - i think - asked 'troubleshoot program'. As i have upgraded XP ->W7 Home Premium clean install, and deleted all Dell Utility Etc partition., i ran it under 'Vista' (not VSP1 or VSP2) and it worked!

I now have sound back and Dev Mgr no longer has the [yellowtriangle!] on the 'MultiMedia Audio Controller', also 'Sound, Video, and Game Controller' category has now re-appeared under Dev Mgr. The Dell R99254 driver for Sigmatel specs xp and vista but seems to default run as the xp version unless forced otherwise. Yes, it's a 2005 Inspiron 2200 w PentiumM@1.5 and maxed to 1.24G RAM, but it still runs and produces a good series of Windows problem-solving exercises to apply to my newer machines. Iso 9001 Management Review Meeting Presentation Background on this page.

Windows 7 Forums is the largest help and support community, providing friendly help and advice for Microsoft Windows 7 Computers such as Dell, HP, Acer, Asus or a. Download the latest drivers for your SigmaTel C-Major Audio to keep your. The latest version of SigmaTel C-Major Audio drivers. 1, Windows 7, Windows Vista.