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FB-DIMMs to drive energy savings in data centers

Posted: 04 Jul 2007 ?? ?Print Version ?Bookmark and Share

Keywords:DDR2? fully-buffered dual-in-line memory modules? FB-DIMMs?


Qimonda AG introduces the industry's first quad-rank, 8Gbyte DDR2 fully-buffered dual-in-line memory modules (FB-DIMMs), an enabling technology to drive the next generation of multi-core server performance while lowering server power consumption. These advanced FB-DIMMs extend Qimonda's already broad portfolio and allow Qimonda to better address the growing demands of server and high-performance computer workstation applications.

Qimonda's new FB-DIMMs are available in speed grades up to 800MHz. The 800MHz version will enable improved performance in next generation servers coming to market later this year. In the 800MHz modules, the bandwidth per high speed lane is 4.8Gbpsan increase of 50 percent compared to 533MHz and 20 percent compared to 667MHz versions.

The new modules also reflect Qimonda's commitment to improve the energy efficiency of server memory, which is typically the second largest power drain in a server. First tests in Qimonda's labs show significant potential for a reduction of power consumption for a given memory capacity by up to 45 percent compared to using conventional modules.

Qimonda is leveraging the transition to its next generation 75nm manufacturing process to further improve energy efficiency across its portfolio of server memory modules. The company now offers DDR2 components that operate at 1.5V, a supply voltage that is 17 percent lower than the current standard, without any performance loss. Using these components, Qimonda supports low-power DDR2-based server memory solutions, beginning with its new the FB-DIMM products.

The quad-rank organization is enabled by Qimonda's internally designed and manufactured Advanced Memory Buffer (AMB) chip, which acts as the data traffic director for the FB-DIMM. The quad-rank FB-DIMM enables the enterprise to scale total memory module density while maintaining or lowering the power budget. This contributes to both power savings and reduced latency of the memory channel. Both, the lower operating voltage and the use of quad-rank FB-DIMMs contribute to the significant potential for a reduction in power consumption using the new module type.

Qimonda FB-DIMMs are now available in 1Gbyte, 2Gbyte and 4Gbyte densities with a two-rank configuration, and in 2Gbyte, 4Gbyte and 8Gbyte density with a quad-rank configuration. All of the FB-DIMM densities are available with data rates up to 800Mbps and operate at the JEDEC standard 1.8V or industry target for low power 1.5V. Initial samples of the quad-rank 8Gbyte modules have already been delivered to key enabling partners for validation testing.

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