Heat oven to 325°F. Grease 12-cup fluted tube (bundt cake) pan with shortening or cooking spray; lightly flour. (Do not use dark or nonstick pan.)
In large bowl, mix flour, baking powder, salt, gingerroot and orange peel; set aside.
In another large bowl, beat sugar and butter with electric mixer on low speed 30 seconds, scraping bowl constantly, until creamy. Add eggs; beat on low speed until well blended. Beat on high speed 5 minutes, scraping bowl occasionally. Beat in flour mixture alternately with orange juice on low speed until smooth. Pour into pan.
Bake 1 hour 5 minutes to 1 hour 15 minutes or until toothpick inserted in center comes out clean and top is dark golden brown. Cool 30 minutes; remove from pan to cooling rack. Cool completely, about 1 hour.
Spoon marmalade over cake; top with candied ginger.