US Patent 7447831 Memory systems for automated computing machinery

Memory systems are disclosed that include a memory controller and an outbound link with the memory controller connected to the outbound link. The outbound link typically includes a number of conductive pathways that conduct memory signals from the memory controller to memory buffer devices in a first memory layer; and at least two memory buffer devices in a first memory layer. Each memory buffer device in the first memory layer typically is connected to the outbound link to receive memory signals from the memory controller.