APPARATUS AND METHOD FOR IMPLEMENTING A MULTI-LEVEL MEMORY HIERARCHY HAVING DIFFERENT OPERATING MODES

A system and method are described for a dual in-line memory module (DIMM). In one embodiment, the DIMM comprises on board electronic circuitry to identify if a targeted item of data is in a cache for non volatile memory, identify which system memory addresses correspond to which non volatile memory addresses, identify regions of the non volatile memory that are more likely to fail, identify bad regions of the non volatile memory that are not useable, and receive and respond to a memory read request, where the read request has a targeted address that does not correspond to a system memory address whose information is in the cache.