I noticed a strange issue when I was performing deep cleaning of the speakers but after that the on board sound was not working. I donít know the exact reason for such issue. Speakers were not working whenever I inserted any USB sound device in the slots. I executed all the different methods that I knew but it was not successful to solve the issue. The motherboard that is included in my PC is K8T NEO. Is anyone aware about such issues? If yes then please help me to solve that issue.