Lenovo ThinkSystem SR950 — supported memory

8-socket 4U modular server (up to 8x Intel Xeon Scalable CPUs). 96 DIMM slots total: 12 DIMMs per processor across 6 memory channels/CPU, 2 DIMMs per channel. Supports 1st-gen (Skylake, up to DDR4-2666; 2400 with some Gold 5000-series) and 2nd-gen (Cascade Lake, up to DDR4-2933 incl. Performance+ 2933) Intel Xeon Platinum/Gold Scalable processors. Lenovo TruDDR4 RDIMMs, LRDIMMs and 3DS RDIMMs. Max per DIMM 128GB 3DS RDIMM (Gen 1) / 256GB 3DS RDIMM (Gen 2). Max system memory up to 12TB (Gen 1, 96x 128GB) / 24TB (Gen 2, 96x 256GB 3DS RDIMM); up to 36TB total when combined with Intel Optane DC Persistent Memory (up to 48 DCPMMs).

Confirmed = listed in the vendor's memory documentation for this server. Vendor match = the vendor's own part cross-reference matches the module and its speed is validated for the platform; not taken from this server's memory list. Spec match = meets this platform's JEDEC requirements (generation, form factor, validated speed); interchangeability is spec-based, not per-server testing. How we verify →