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PREHEAT oven to 325°F if using silver 9-inch springform pan (or to 300°F if using a dark nonstick 9-inch springform pan). Mix wafer crumbs and butter; press firmly onto bottom of pan. Bake 10 minutes.
BEAT cream cheese, sugar and flour in large bowl with electric mixer on medium speed until well blended. Add sour cream and vanilla; mix well. Add eggs, 1 at a time, mixing on low speed after each addition just until blended. Stir in chips; pour over crust.
BAKE 55 minutes or until center is almost set. Run knife or metal spatula around rim of pan to loosen cake; cool before removing rim of pan. Refrigerate 4 hours or overnight. Store leftover cheesecake in refrigerator.