I have an asrock 970 extreme4 motherboard and just recently realtek hd audio is constantly using between 10-15% cpu. This has never been a problem before but now its making my games lag. I have already uninstalled the drivers and installed the newest updates. It hasn't changed anything. This is really upsetting as this has been an amazing computer up until now. I have searched on google for days and can't find a fix. Someone please help me.