ThinkSystem holds strong share in Asia-Pacific data centers, which makes it a familiar sight in cross-border used-hardware deals. This observation page covers the essentials; model pages will follow demand.
Knowledge pages are educational references, independent of sales inventory. Items without confirmed sourcing are reference-spec — quoted on demand.
SR = rack server (ST = tower, SD = dense). The SR630 (1U) and SR650 (2U) are the volume models, direct counterparts of Dell's R640/R740 and HPE's DL360/DL380 Gen10: first/second-gen Xeon Scalable, 24 DIMM slots, DDR4-2666/2933 RDIMM or LRDIMM. V2 models move to 3rd-Gen Scalable and DDR4-3200; V3 models move to DDR5.
| Generation | Key models | CPU platform | Memory | Years |
|---|---|---|---|---|
| Gen1 | SR550 / SR630 / SR650 / SR850 | Xeon Scalable 1st/2nd Gen | DDR4-2666/2933 · 24 slots | 2017–2021 |
| V2 | SR630 V2 / SR650 V2 | Xeon Scalable 3rd Gen | DDR4-3200 · 32 slots | 2021–2023 |
| V3 | SR630 V3 / SR650 V3 | Xeon Scalable 4th/5th Gen | DDR5-4800+ | 2023– |
Most Lenovo ThinkSystem DDR4 platforms take exactly the modules we stock — see 32GB DDR4 ECC RDIMM availability or use the DDR4 compatibility table.