In a large pot or saucepan, bring 8 cups water and 4 tablespoons margarine to a boil. Slowly add entire amount of soup mix, using a whip or whisk to blend. Add 2 cups diced ham. Reduce heat and simmer, uncovered, for 30 - 45 minutes. Stir occasionally. May also crockpot on LOW 5 - 6 hours.