zatka; does not RH recognize or accept it? or is motherboard supported?
maybe not recognized by bios check that out. if not you may to enable sound via bios. there are (4) reasons for devices not working, 1st Hardware issue, 2nd kernel module issues, 3rd permission issues, 4th configuration issues. check each untill most all are ok then the one that is not is where problem needs to removed or repaired, drivers may be needed. check with intel for workaround or drivers. that is great site for support on their products.