Arrangement of memory devices in a multi-rank memory module

摘要

A multi-rank memory module is operable in a memory system with a memory controller. The memory module according to one embodiment comprises at least one module board, memory devices organized in three ranks, and at least one register device providing control/address signals to the memory devices. Arrangement of the ranks on the at least one module board are made to balance memory device loadings on the C/A signals, and data/strobe signal hubs are designed to provide better alignment of different data bits in a data signal and to reduce reflection from discrete components disposed near an edge of the module board, resulting in improved signal quality and integrity.

主权项

1. A multi-rank memory module, comprising:
a module board having a first side and an opposing second side; and memory devices organized in first, second and third ranks, wherein memory devices in the first rank are all mounted on the first side, memory devices in the second rank are all mounted on the second side, and memory devices in the third rank include a first number of memory devices mounted on the first side, and include a second number of memory devices mounted on the second side.