Preheat oven to 325°. Butter and flour 9x5x3-inch metal loaf pan. Sift flour, cocoa, baking powder and salt into medium bowl. Using electric mixer, beat butter in large bowl until fluffy. Gradually add sugar; beat until well blended. Add eggs 1 at a time, beating well after each addition. Beat in sour cream and vanilla. Add dry ingredients in 3 additions, beating well after each addition. Fold in chocolate chips. Transfer batter to pan. Smooth top.
Bake cake until tester inserted into center comes out clean, about 1 hour 35 minutes. Cool in pan on rack 15 minutes. Run knife between pan sides and cake; turn cake out onto rack. Cool. Wrap in foil; let stand at room temperature at least 1 day. (Can be made 3 days ahead. Store wrapped in foil at room temperature.)
Cut pound cake into 3/4-inch-thick slices. Place 1 cake slice on each of 10 plates. Spoon Sweetened Strawberries and scoop of ice cream alongside. Drizzle with Bittersweet Chocolate Sauce and serve.