DDR5 Load Reduced (LRDIMM) and Registered Dual Inline Memory Module (RDIMM) Common Specification


Published: Jan 2022

This standard defines the electrical and mechanical requirements for 288-pin, 1.1 Volt (VDD and VDDQ), DDR5 Registered (RDIMM) and Load Reduced (LRDIMM), Double Data Rate (DDR), Synchronous DRAM Dual In-Line Memory Modules (DIMM). These 288-pin Registered and Load Reduced DDR5 SDRAM DIMMs are intended for use in server, workstation, and database environments. Item 2273.07.

Committee(s): JC-45.1

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