Para o Hyper-V 2012: link
Go into the BIOS by pressing F9. Go to "Advanced options > Processor Options" and enable these two sub-options:
No-Excecute Memory Protection and
Intel(R) Virtualization Technology
Save with F10.
Para o Hyper-V 2016, você está sem sorte, pois o DL380 não suporta o SLAT: link
For Windows Server 2016 Hyper V role, Second Level Address Translation (SLAT) is requirement, instead recommendation as it was for Windows Server 2012 Hyper V.