Yes it's not the watts but the amps that are getting you. Each "side" of your dorm room (yours then your roomates) are probably on a 15 to 20 amp breaker. You may want to check the amps your pulling at the plug on each rig. I usually limit my rigs to 2 rigs per breaker. I like to leave head room so it doesn't heat up the breaker. Oh and 1800 watts is about the max on one line/side/breaker of your dorm room at standard amp draw in a perfect world.