When I startup my computer it beeps and there is no display on monitors. The monitors work I checked. I then tried to take out both ram sticks (2x 4gb), clean them, clean the ram slots that you put them in. I put the ram sticks back and tried to turn it on, same thing. I then keep trying to switch around the ram sticks in different ram slots and my result was the same throughout the whole process. I tried each ram stick in each ram slot, by itself or with the other. Still constant beeping and no display on the monitor. What should I do?