Lenovo ThinkSystem SD650 V2/SD650-N V2 Supercomputing Server - DDR4 3200MHz PC4-25600 - RDIMM

NEMIX RAM memory upgrades for the Lenovo ThinkSystem SD650 V2/SD650-N V2 Supercomputing Server: DDR4-3200 ECC Registered (RDIMM) modules from 16GB to 128GB, sold as single modules and matched kits of up to 16 per node, selected as drop-in, compatibility-tested replacements. 1.2V, 288-pin, JEDEC-compliant. Each node runs two 3rd Gen Intel Xeon Scalable processors with 16 DDR4 DIMM slots (eight per processor, one DIMM per channel), supporting up to 2TB per node with 128GB 3DS RDIMMs. The SD650 V2 tray holds two nodes; the SD650-N V2 tray holds one node with four NVIDIA GPUs. Lenovo rates the node at DDR4-3200. Lenovo lists 32GB memory for these water-cooled nodes in the 2Rx4 organization, which is the 32GB module offered here. Lenovo positions the ThinkSystem SD650 V2 and SD650-N V2 as Lenovo Neptune direct water-cooled nodes for the DW612 enclosure, built for HPC and AI clusters; memory is listed per node. This platform takes registered ECC memory (RDIMM) only; unbuffered UDIMMs will not work. Use one module size and type throughout the server, and populate memory in the matched groups Lenovo specifies for each processor. Researched, matched, and compatibility-tested by NEMIX RAM, a US-based server memory specialist since 1993, and backed by a lifetime warranty. Volume, reseller, and B2B pricing available on request — contact our sales team for a quote.