Installing RouterOS on DELL R720

RouterOS General
1

Our current server is reaching its limitation. So, i am trying to get new server which is DELL R720.
I am using Netinstall to install the OS to USB then make server to boot from that USB. and i got below result:
IMG_3634.JPG
then It stuck there :frowning:

What is wrong?

2

Install RouterOS to SSD in another machine, then re-install in R720 and boot.