Testing the Controller

I just received my new machine and it arrived way earlier than expected. Hence I dont have a place to assemble it yet. However I was interested in testing the controller to see if my monitor and mouse would work. My thoughts were I would take the controller, hook up a monitor and mouse and turn it all on. Now I havent done this yet and thats the reason for the question. Would I actually see something on the monitor or does it need to be connected to the fully assembled machine ?

You can do exactly that without connecting the motor wires.