Systems and methods for providing distributed technology independent memory controllers. Systems include a computer memory system for storing and retrieving data. The system includes a memory bus, a main memory controller, one or more memory devices characterized by memory device protocols and signaling requirements, and one or more memory hub devices. The main memory controller is in communication with the memory bus for generating, receiving, and responding to memory access requests. The hub devices are in communication with the memory bus and with the memory devices for controlling the memory devices responsively to the memory access requests received from the main memory controller and for responding to the main memory controller with state or memory data. The main memory controller and the hub devices communicate via the memory bus in messages in a message format and protocol for indicating memory read, memory write, memory system power management and control that is independent of the memory device protocols and signaling requirements.