This video is about: Server Board Project Olympus, Block Diagrams, Processor Schematic & DDR4 Memory slots, PCB Layout around CPU
Project Olympus:
https://www.opencompute.org/wiki/Server/ProjectOlympus
Files:
http://files.opencompute.org/oc/public.php?service=files&t=e969672c57d6e17647adea54f2c3e5a7&download