Single short beep means system passed the POwerup Self Test (POST). Memory failure is a continuous series of single three second long beeps - verified by pulling the memory from my DS3-P motherboard. A video interface failure is indicated by a one long and three short beep pattern. Specifically, this means that the motherboard either cannot detect or talk to the video card. You could have an internal video card failure that would not be detected in the POST.
And you cannot install the motherboard software until Windows is loaded.
Is the monitor set up properly? If it is a flat panel, is the proper input selected?