did you or does that board have a bios update for use of the latest 7 series CPU's ???
if that chip needs bios 9 to support it and has bios say 4 on it the cpu may not work at all .. 100 series did not support 7 series chips with out a bios update applied first
that's my guess
your board shows you need at least bios 3016 to support that chip
https://www.asus.com/us/Motherboards/Z170-PRO-GAMING-AURA/HelpDesk_CPU/
https://www.asus.com/us/Motherboards/Z170-PRO-GAMING-AURA/HelpDesk_Download/
may need to remove it to check if you did not get any bent pins