A vehicle engine enclosure includes a tractor frame which supports an engine. The shelf is configured for use as a standard storage shelf in an organizer system. The semiconductor module includes a mode register configured for storing a first information signal whose logic level is set or determined according to a number of the ranks and an on-die termination controller configured for generating an internal control signal for activating an ODT circuit in response to the first information signal. A modular display portion is coupled to the door assembly that extends into the retrieval area to define a single unit retrieval opening.