yes drivers need to be installed or the speaker icon needs to be added to the task bar. fasted way to check for any sound is to stick a cd in and let windows media player play the disk if you get low dound or limited sound control it just need ot check under the setting and sound to add the icon. if no sound or an error message you need drivers like other say go to the maker of the pc and get them. ifi t was custom then you should have a motherboard disk with al lthe drivers ( out of date ) but enough to get you started.