845glly intel motherboard sigmetal sound driver

Open the link provided & allow Intel to search your system for updates;
http://www.intel.com/support/motherboards/desktop/d845glly/

Or

Open this link; http://downloadcenter.intel.com/SearchResult.aspx?lang=eng&ProductFamily=Desktop+Boards&ProductLine=Intel%c2%ae+845+Chipset+Family+Boards&ProductProduct=Intel%c2%ae+Desktop+Board+D845GLLY

Scroll down until you see, Audio: Sigmatel* AC97 Driver on the left side of the screen. Download & install the AC97 driver.

Cheers!
Mike

Check for drivers in www.driverguide.com
and i think you might have checked .........................
download this driver and install and check form the fol.. url----
http://www.softwarepatch.com/9a-12-azc/ac97-406.zip

99% it should work....

still if you dont or works get
the last only way is using sound chip IC detailes

check for the sound CHIP on the motherboard physically....and write down the

detailes of the sound chip and motherboard

regards
let me know