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Identify Your Computer Flash Memory    Compact Flash (CF)    Industrial Compact Flash Card    CompactFlash CFAST    Secure Digital SD Card Flash    SD High Capacity (SDHC)    SD/SDHC (Industrial)    MicroSD    Mini Secure Digital (MSD)    MicroSDHC/XC    MultiMedia Card (MMC)    MultiMedia Plus Card    MMC Mobile    Reduced Size MMC (RSMMC)    RSMMC Dual Voltage (RSMMCDV)    Sony Memory Stick (MS)    Memory Stick Pro (MSP)    Memory Stick Pro Duo (MSPD)    Memory Stick Micro M2 (MS Micro)    xD-Picture Card    Smart Media Flash Card    PCMCIA ATA Flash    SATA Flash Module    MDOM IDE Flash    USB 2.0 Flash Pen Drive    USB 3.0 Pen Drive    Readers and Adapters  Apple Memory and Drives  Cisco Memory  GBIC Transceivers  Cisco Hardware  Networking Transceivers  Sun Memory  Sun Accessories  Compaq Memory and Drives  Dell Memory and Drives  Fujitsu Memory  HP Memory and Drives  IBM Memory and Drives  Intel Chipset Memory  Lenovo - IBM Memory and Drives  Panasonic Memory and Drives  Sony VAIO Memory and Drives  Toshiba Memory and Drives  Printer Memory  What's New  Choose Memory By Type  DDR4  PC4-17000 DDR4-2133  PC4-19200 DDR4-2400  PC4-21300 DDR4-2666  DDR3  PC3-8500 DDR3-1066  PC3-10666 DDR3-1333  PC3-12800 DDR3-1600  PC3-14900 DDR3-1866  DDR2  PC2-3200 DDR2-400  PC2-4200 DDR2-533  PC2-5300 DDR2-667  PC2-6400 DDR2-800  PC2-8500 DDR2-1066  DDR  PC1600 DDR200  PC2100 DDR266  PC2700 DDR333  PC3200 DDR400  RDRAM  SDRAM  PC66  PC100  PC133  EDO  FPM  Fully Buffered FBDIMM  SODIMM  MicroDIMM  72 Pin SIMM  30 Pin SIMM  Batteries  Hard Drives  Resellers  Customer Testimonials

PC2-5300 DDR2-667 240-pin ECC Fully Buffered FBDIMM

Fully Buffered DIMM architecture introduces an Advanced Memory Buffer (AMB) between the memory controller and the memory module. Unlike the parallel bus architecture of traditional DRAMs, an FB-DIMM has a serial interface between the memory controller and the AMB. This enables an increase to the width of the memory without increasing the pin count of the memory controller beyond a feasible level. With this architecture, the memory controller does not write to the memory module directly, rather it is done via the AMB. The AMB can thus compensate for signal deterioration by buffering and resending the signal. In addition, the AMB can also offer error correction, without posing any overhead on the processor or the memory controller. It can also use the Bit Lane Failover Correction feature to identify bad data paths and remove them from operation, which dramatically reduces command/address errors. Also, since reads and writes are buffered, they can be done in parallel by the memory controller. This allows simpler interconnects, more memory bandwidth, and (in theory) hardware-agnostic memory controller chips (such as DDR2 and DDR3) which can be used interchangeably. The downside to this approach is that it introduces latency to the memory request.

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