I've had this problem for a few months now. When the Asus logo appears when I boot up my laptop it plays a sound, so I don't think it's the Sound Card that's the problem.
All information about my laptop and the fixes I've tried can be found in a previous thread I made a while ago: http/www.tomshardware.com/answers/id-3034087/audio-output-device-installed.html#17829617
All information about my laptop and the fixes I've tried can be found in a previous thread I made a while ago: http/www.tomshardware.com/answers/id-3034087/audio-output-device-installed.html#17829617