Not detecting the soundcard

I have posted some of this in another group, but I need some help with the BIOS on my laptop. Its American Megatrends. I have no problem getting in there, but there is basically nothing on the Advanced tab. I am trying to get in contact with the maker to see if they locked some settings down. This is the model: Mytrix LinuxBook 7350, 13.3" Full HD Slim Laptop, i5-8250U Quad-Core up to 3.40 GHz, 8GB RAM, 1TB PCIe NVMe SSD, USB-C/DP, HDMI, Backlit KB, FP Reader, Webcam, Metal Body Design, Ubuntu Linux

Series Mytrix KN13-7350

Have any of you heard of this type? I bought it on Amazon. There are no real specs on the onboard audio - but its not being detected at all from inside Ubuntu. Also sound properties display Dummy Output. This is why I want to look in the BIOS. I believe its an "hda intel" but at this point I am unsure. Any help is appreciated!