I assume it's a motherboard integrated audio card? If so, what motherboard are you using, and if not, what audio card are you using? Then all you would have to do is search "motherboard (your motherboard name here) audio drivers" or "audio card (audio card here) drivers" on Google or go to whatever the manufacturer's website is and search there. Since I'm too lazy to go look what 100 different combinations your system could have, I suggest you find it out for yourself. Go download Sandra if the device manager is too difficult for you to find.