Donna's Slow Cooker Cheese Potatoes

32 ounces frozen hash browns

10 3/4 ounce can cream of potato soup

10 3/4 ounce can cream of mushroom soup

8 ounces shredded cheddar cheese

1 cup grated parmesan cheese

1 pint sour cream

3/4 pound smokehouse ham slice, thick, cut in small chunks

Mix together all ingredients in slow cooker.  Cover.  Cook on low 7 hours.