Nice little setup there Did you post the final spec already?
Should you have time later, some pics of the internal workings would be great.
Temps are pretty impressive, especially on the GPU's...
apparently a lot of AI Suite issues can be attributed to outdated MEI drivers (Intel Management Engine Interface i think), may be worth checking they're up to date.
Apparently the memory clock is common as it's reading GDDR5x and reporting half of the DDR2 rate, it's the same with the 1080:
https://forums.evga.com/Mis-afterburner-reading-GeForce-1080-memory-at-5ghz-m2543377.aspx
are you overclocking your gpu?