1996 Honda Prelude No power steering

I lost the power in my power steering, but no fluid was lost, and the steering made no noise. My research indicated that the problem was the PS pump and I've replaced it, topped off the fluid, and turned the wheels lock-to-lock. But there is still no 'power' i.E. The wheels turn extremely hard as if the car has no power steering---but now it DOES make the low -pitched noise of a 'bad' PS system. Now what?