EXTENDED-HEIGHT DIMM

摘要

An extended-height DIMM for use in a memory system having slots designed to receive DIMMs that comply with a JEDEC standard that specifies a maximum height for the DIMM and a maximum number of devices allowed to reside on the DIMM. The DIMM comprises a PCB having an edge connector designed to mate with a memory system slot and a height which is greater than the maximum height specified in the applicable standard, a plurality of memory devices which exceeds the maximum number of devices specified in the applicable standard, and a memory buffer, or a register control device and data buffers, which operates as an interface between a host controller's data and command/address busses and the memory devices. This arrangement enables the extended-height DIMM to provide greater memory capacity than would a DIMM which complies with the maximum height and maximum number of devices limits.

主权项

1. An extended-height DIMM for use in a memory system having slots designed to receive DIMMs that comply with a JEDEC standard that specifies a maximum height for the DIMM and the maximum number of devices allowed to reside on the DIMM, comprising:
a printed circuit board (PCB) having an edge connector designed to mate with a respective one of said memory system slots, the height of said PCB being greater than said maximum height; a plurality of memory devices on said PCB which exceeds said maximum number of devices; a register control device (RCD) and data buffer (DB) devices on said PCB and arranged to operate as an interface between a host controller's data and command/address busses and all of said memory devices; such that said extended-height DIMM provides greater memory capacity than would a DIMM which complies with said maximum height and maximum number of devices limits.