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    LRDIMM – Load-Reduced Dual Inline Memory Module

    Short for load-reduced dual inline memory module. LRDIMM is a load-reduction (LR) DIMM (used in servers) that supports higher densities than RDIMMs and contains a memory buffer (MB) chip, as opposed to a register, in order to reduce and minimize the load on the server memory bus. The memory buffer reduces each clock, command and address and data input to a single load, which increases the memory speed.

    LRDIMMs are useful in memory-intensive applications in data centers, cloud computing and in high-performance computing (HPC) environments. LRDIMM is pin-compatible with existing DDR3 DIMM sockets and is JEDEC standard.

    See also A Quick Reference to System Memory in Webopedia’s Quick Reference section.