Sound issues with RHEL7.5

G'day,

I have this very frustrating issue of having absolutely no sound on my brand new laptop. My laptop is a brand new Metabox PrimeS P950EP.

I have tried things that have been mentioned online to fiddle with resolving the sound issue and have managed to kill the system couple of times.

I desperately need the sound issue solved.

I tried installing CentOS and Fedora 28 and both has no sound either.

In the Settings, Sound, Output tab it has 2 listings:

1. Digital Output (S/PDIF) - Built-in Audio and a corresponding Profile of "Digital Stereo (IEC958) Output

2. Speakers - Built-in Audio and a corresponding Profile of "Analog Stereo Output"

Could anyone shed some light on my problem? Or guide me to links etc. where I can read more about it?

Thank you so much.