Hello,
Try the front panel in your chassis .
Try another headphone or speakers .
What version of windows you are using ? do you use Audio Manager that comes with the driver or the windows ones ?
Regards
Hello,
You will have to Convert your Disk To GPT and then enable UEFI inside BIOS instead of CSM(Legacy mode).
You will then be able to install windows 10 under UEFI and use Fast&Secure Boot.
Regards