Find original ECC FB-DIMM fully buffered DDR2-667 and DDR2-800 online at Memory Deal

FBDIMM, (FB-DIMM), 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 RDIMM modules, an FB-DIMM has a serial interface between the memory controller and the AMB. 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.

The FBDIMM is recognized by the heat-shield, heat sink on them, having no chips exposed to the eye.

Memory Deal offers only original FB-DIMM and FBDIMM (we call them both, haha) memory modules. There are two main types:

PC or JEDEC, recognized by smaller heat sinks. These work in all applications that call out for FBDIMM memory modules EXCEPT the Apple Mac Pro line of comptuers. They come in three speeds:

1. PC2-4200 FBDIMM CL4 DDR2-533 240-PIN
2. PC2-5300 FBDIMM CL5 DDR2-667 240-PIN
3. PC2-6400 FBDIMM CL6 DDR2-800 240-PIN

*Note the Apple Xserve uses the PC or JEDEC style, go figure...

The Apple Mac Pro FBDIMM modules are recognized by much larger heat sinks, designed to disperce heat for this family of Mac computers.

• DDR2 ECC fully buffered DIMM (FB-DIMM) memory
• Eight FBDIMM slots on two memory riser cards (four slots per card) supporting up to 32GB of main memory
• 256-bit-wide memory architecture

You have installation options for the ram in two speeds:

DDR2-667 PC2-5300 or DDR2-800 PC2-6400 memory

800MHz Mac Pro PC2-6400 Fully Buffered CL5 DDR2-800 240-PIN FBDIMM memory modules:

• MB194G/A the 8GB or 2x4GB DDR2-800 PC2-6400 memory module kit
• MB193G/A the 4GB or 2x2GB DDR2-800 PC2-6400 memory module kit
• MB192G/A the 2GB or 2x1GB DDR2-800 PC2-6400 memory module kit

667MHz PC2-5300 Fully Buffered CL6 DDR2-667 240-PIN FBDIMM memory modules:

• MA987G/A the 4GB or 2x2GB DDR2-667 PC2-5300 memory module kit
• MA986G/A the 2GB or 2x1GB DDR2-667 PC2-5300 memory module kit
• MA985G/A the 1GB or 2x512MB DDR2-667 PC2-5300 memory module kit