Crucial 4096MB PC5400 DDR2 667MHz ECC FB-DIMM MemoryItem#: YYD1-CT51272AF667  |  Model#: CT51272AF667

Crucial 4096MB PC5400 DDR2 FB-DIMM Memory
Crucial Technologies is part of Micron, the largest DRAM manufacturer in the U.S. and one of the largest in the world. Because they actually manufacture memory, they have unparalleled expertise in the upgrade industry. Crucial is the only consumer memory upgrade supplier that is part of a major DRAM manufacturer.

Every single Crucial memory module is tested before it goes out their doors. Crucial chips are individually tested under varying temperatures, voltages, and operational conditions for performance and functionality.

What Are FB-DIMMs?
FB-DIMMs represent the next-generation server memory technology that is currently being standardized by JEDEC, the industry's standard group. Intel Corporation is a key developer of FB-DIMM technology and the first adopter, launching it on its two-way Xeon servers (code-named "Bensley") with 5000 series chipsets launching in 2006. FB-DIMMs are "intelligent" memory modules, incorporating a special memory controller built into the memory module.

FB-DIMMs are not compatible with existing servers utilizing DDR2 Registered DIMM memory. They also will not work in desktop or mobile platforms as they are only designed for servers with FB-DIMM memory architecture.

How Does FB-DIMM Technology Work?
FB-DIMM technology utilizes high-speed serial (narrow bus) memory connections, similar to the PCI Express technology launched in June 2004. FB-DIMMs feature a built-in intelligent controller, called Advanced Memory Buffer (AMB), which manages all the module's DRAM read and write operations while also handling all communications across the high-speed connection to the memory controller. FB-DIMMs are "intelligent" memory modules.