Thank you for your enquery related to your ASUS P8BWS with an E3-1225V2, and with the issue you are having One long and 3 short, no display. And according to Asus support manual - http://www.manualslib.com/manual/324978/Asus-P8b-Ws.html?page=72 is a problem with VGA port or video chipset.
If they are determinen that there is nothing wrong with the system board
I will request for the print out test sheet they’ve done and or to test the
other devices for you, because the manual clear states the code error.