A system contains a land grid array socket with a first set of socket interconnections configured to connect to a set of circuit board electrical connectors, each socket interconnection in the first set extending from a top surface to a bottom surface. A second set of socket interconnections are configured to reversibly connect to a set of circuit card electrical connectors. A circuit board can include a mounting surface fastened to the land grid array socket. A set of electrical connectors within a socket connector zone can be connected to at least some of the first set of socket interconnections. A board cutout section is located beneath a second interconnection zone and configured to receive a circuit card.