A memory module connectable to a computer system includes a printed
circuit board, a plurality of memory devices coupled to the printed
circuit board, and a logic element coupled to the printed circuit board.
The plurality of memory devices has a first number of memory devices. The
logic element receives a set of input control signals from the computer
system. The set of input control signals corresponds to a second number
of memory devices smaller than the first number of memory devices. The
logic element generates a set of output control signals in response to
the set of input control signals. The set of output control signals
corresponds to the first number of memory devices.