With due respect, I think the parent conflates the Management Engine with something else. It does not replace the BIOS, to which UEFI adds many features, or dip switches. See this post for a description:
If you really want to learn about it, save your time and go to the source:
Platform Embedded Security Technology Revealed: Safeguarding the Future of Computing with Intel Embedded Security and Management Engine by Xiaoyu Ruan, a security researcher with the Platform Engineering Group at Intel
https://news.ycombinator.com/item?id=15445826
If you really want to learn about it, save your time and go to the source:
Platform Embedded Security Technology Revealed: Safeguarding the Future of Computing with Intel Embedded Security and Management Engine by Xiaoyu Ruan, a security researcher with the Platform Engineering Group at Intel