What is Fully Buffered DIMM?
A.FB-DIMM is a new memory interconnect technology standard for high-end memory connections. FB-DIMM transitions the memory channel to a serial interface and replaces the DIMM register with a memory buffer. FB-DIMM connections are expected to enable systems to scale the number of memory channels available to a server system. Implementations of FB-DIMM enabled DDR2 memory are expected in future Intel architecture-based platforms. Current DIMMs will be unable to handle the memory requirements of the type of high-speed servers that will use DDR2 at speeds of 667 to 800 Mbits/s. PCs, which don’t have the very large memory size of most servers, can use the standard DDR2 without the buffer. A conventional buffered DIMM includes added logic that reduces the loading on the system address and control bus lines. A system designed for buffered DIMMs can use more modules, since the buffer chips absorb some of the load. A new Memory Implementers Forum (www.memforum.org) has been formed to focus on d
