What is a FB-DIMM controller?

What is a FB-DIMM controller?

Memory controller with differential serial connections to DDR2 FB-DIMMs. The AMB is visible in the center of each DIMM. Fully Buffered DIMM (or FB-DIMM) is a memory technology that can be used to increase reliability and density of memory systems.

What is FB-DIMM protocol?

The protocol is more generally described in many other places. The FB-DIMM channel consists of 14 “northbound” bit lanes carrying data from memory to the processor and 10 “southbound” bit lanes carrying commands and data from the processor to memory.

Are FB-DIMMs compatible with 240-pin DDR2 DIMM?

240-pin DDR2 FB-DIMMs are neither mechanically nor electrically compatible with conventional 240-pin DDR2 DIMMs. As a result, those two DIMM types are notched differently to prevent using the wrong one. As with nearly all RAM specifications, the FB-DIMM specification was published by JEDEC .

What is a Fully Buffered DIMM (fbdm)?

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.