I have been watching utube videos on how to sort boards. I think the following would be considered motherboards, but, I am not sure. Could use some help. I have pictured one of the boards, front and back.

It'll go from I-series motherboard to High Per. I doubt you'll get Integrated because of the gold tabbed chip plus some.

What did this come from?

If it's network, it's High Per.
If it was an all-in one computer or touch screen. It'll be a form of Mother board like I-series.

It came from a "Thin Client." I have accumulated quite a few in a few varieties.

The "I-Series and AMD AM/FM Socket MB" makes me sad because even Peripheral Low Grade is a higher price! Because of the gold tab BGA I would hope it will fall into Peripheral High Grade.