I am using realteck ALC 662 onboard sound card that comes with foxconn 45cmx-k motherboard. Now my sound card is malfunctioning....though the sound card drivers are connect properly ...though the sound files are playing in media players...though the speakers are connect properly ....though all the physical and logical conections are correct......no sound comes out from the speakers.....???? unable to think what have happned.....is my on board sound card failure...????? i will up load some pictures for kind consideration..... plese help me ....!!!