1. A memory module comprising: at least one memory stack that comprises a plurality of dynamic random access memory (DRAM) integrated circuits; and a buffer circuit, configured to be coupled to a host system, for interfacing said at least one memory stack to said host system for configuring one or more of said DRAM integrated circuits in said memory stack; wherein said at least one memory stack comprises at least one non-volatile memory device, and wherein said buffer circuit is further configured for copying data from at least one of said DRAM integrated circuits to said at least one non-volatile memory device upon detection of a catastrophic event.