A computer system includes a controller coupled to a plurality of memory modules each of which includes a memory hub and a plurality of memory devices. The memory hub includes a row cache memory that stores data as they are read from the memory devices. When the memory module is not being accessed by...http://www.google.de/patents/US7117316?utm_source=gb-gplus-sharePatent US7117316 - Memory hub and access method having internal row caching
