The term "Rank" is used to describe the architecture of a memory module
-- A Rank is a 64-bit wide block of memory
-- Memory modules can be single "Rank" or dual "Rank"
"Banks" and "Sides" are sometimes wrongly used interchangeably with Rank
-- "Bank" is actually a term that describes the architecture of a memory chip, not a module
-- A module can have chips on both "Sides" but still be single "Rank"; "Sides" describes a modules mechanical layout, but not its electrical organization
So using the term "Sides" to describe a memory module will normally cause confusion.
