The board should work “as is”, but video does have requirements for graphics mode to work (e.g., old style 15-pin VGA adapters cause failure because they lack the DDC channel).
The DB-9 serial port can be connected with a NULL modem cable and a console is always available there, even before boot loader finishes. This serial port does not require graphics, so it is extremely reliable at providing root access even when video and networking are completely gone. This would include log access and error message access. If you lack a DB-9 port on your host you can get a USB “serial UART” which the USB part goes to host and has a DB-9 at the other end for connecting to the Jetson serial port.