Lenovo ThinkSystem SR860 V3 — supported memory

4-socket rack server, 2 or 4 Intel Xeon Scalable processors. 64 DIMM slots total (16 per CPU). 8 DDR5 memory channels per CPU, up to 2 DIMMs per channel (2 DPC). DDR5 RDIMM only: standard 10x4 RDIMM, low-cost 9x4 (EC4) RDIMM, and 3DS RDIMM; UDIMM and LRDIMM not supported. Speeds up to 4800 MT/s at 1 DPC and 4400 MT/s at 2 DPC (5600 MT/s DIMMs run at up to 4800 MT/s in this platform). Max per DIMM up to 256GB (3DS RDIMM). Max memory up to 16TB with 64x 256GB 3DS RDIMMs and four processors. CPUs: 4th Gen Intel Xeon Scalable (Sapphire Rapids, Gold/Platinum), up to 60 cores per CPU; does not support 5th Gen Emerald Rapids.

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 →