Hi, I've been given access to a Dell Precision and put FreeBSD I cannot seem to get the onboard Sigmatel STAC 92XX sound to be. Un-Install the sound driver. Go to the dell website @ ?c=us&cs=19&l=en&s=dhs&~ck. Download the latest drivers for your Dell Precision WorkStation to keep your Computer up-to-date. SigmaTel High Definition Audio CODEC. Driver Date.