I am trying to get access BIOS according to the procedure described below without success. For the mement I do not have RAM attached yet but I guess anyway I should be able to access BIOS. I have attached HDMI Display 1024x768 and the keyboard USB 2.0. When launch the NUC I can't see anything on the screen even pushing F2 (black screen). What could be wrong and if the BIOS access is possible without RAM modules at all ? How do I know which USB 3.0 port should I connect my USB 2.0 keyboard ? I tried all of them.