Date: 11/11/2010

Elpida is shipping samples of its 32-Gigabyte LRDIMM

DRAM vendor Elpida is sampling its 32-gigabyte Load Reduced Dual In-Line Memory Module (LRDIMM). The LRDIMM consists of 72 advanced 40nm process 4-gigabit DDR3 SDRAMs in a Double Density Package (DDP).

JEDEC, a standardization body for the semiconductor industry, is studying the adoption of LRDIMM standards. Elpida is actively engaged in promoting its own standard.

Conventional Registered DIMM (RDIMM) in a two-way server system only allows a maximum of 16 DIMM whereas LRDIMM allows up to 24 DIMM in the same system. According to Elpida, the use of 24 of its 32-gigabyte LRDIMM represents a next-generation 768-gigabyte capacity platform, or 1.5 times that of a system equipped with RDIMM.

Elpida says that with a maximum a speed of 1600Mbps, which is 20% faster than the highest RDIMM speed of 1333Mbps, Elpida's LRDIMM is capable of meeting demand for higher densities and faster speeds in next-generation servers and data centers.

Other features of LRDIMM include:
1. 1.35V/1.5V supply voltage
2. Compliant with JEDEC memory buffer (MB) and Raw Card K standards
3. Symmetric memory buffers maintain signal integrity
4. Elpida's original heat spreader to increase cooling and maintain reliable operation in response to the higher memory density
5. 40nm process 4-gigabit DDR3 SDRAM (DDP) installed

Availability: Sampling now. Mass production is expected to begin in the first quarter of CY 2011.