I set up Server 2016 TP3 without gui.
Tried to install Hyper-V feature and got a message:
install-windowsfeature : A prerequisite check for the Hyper-V feature failed.
1. Hyper-V cannot be installed: The processor does not support second level address translation (SLAT).
At line:1 char:1
+ install-windowsfeature hyper-v -restart
I installed 2016 on my test box on which I wiped out Server 2012 R2 running Hyper-v.
The machine is Quad Core.
I believe that Hyper-V of 2012 required SLAT... because could not install Hyper-on on laptop running Windows 8.1 (and the message was about no SLAT).
--- When you hit a wrong note its the next note that makes it good or bad. --- Miles Davis