Lenovo ThinkSystem SR650 V2

Lenovo's 2-socket 2U rack server (machine types 7Z72/7Z73) for 3rd Gen Intel Xeon Scalable (Ice Lake) processors up to 40 cores and 270 W, with 32 DDR4-3200 DIMM slots (up to 8 TB), up to 40 x 2.5-inch or 20 x 3.5-inch drives across front, mid and rear bays, up to eight PCIe 4.0 slots and room for three double-wide GPUs. A general-purpose workhorse for virtualization, databases, VDI, storage-heavy and GPU workloads.

Memory

Slots: 32 DIMM (16 per processor; 8 channels per CPU, 2 DIMMs per channel)
Types: Lenovo TruDDR4 RDIMM (16, 32, 64 GB, 3200 MHz) and 3DS RDIMM (128 GB 3200 MHz, 256 GB 2933 MHz); UDIMM and LRDIMM not supported; RDIMM and 3DS RDIMM cannot be mixed
Speed: Up to 3200 MHz at 2 DPC; runs at the processor's maximum memory speed (2667 MHz on Silver, 2933 MHz on some Gold/Platinum)
Max: 8 TB (32 x 256 GB 3DS RDIMM); 2 TB with one processor
Population: 1, 2, 4, 6, 8, 12 or 16 DIMMs per processor
Persistent memory: Up to 16 x Intel Optane PMem 200 (128/256/512 GB, 8 per CPU); up to 12 TB with 16 x 256 GB 3DS RDIMM + 16 x 512 GB PMem; App Direct and Memory Mode
Protection: ECC, SDDC (x4 DIMMs), ADDDC (x4 DIMMs, Gold/Platinum), memory mirroring; no memory sparing

Storage

Front 2.5": 8, 16 or 24 x 2.5" hot-swap in 8-bay backplanes: SAS/SATA, AnyBay or NVMe, mixable (e.g. 16 SAS/SATA + 8 NVMe)
Front 3.5": 8 x 3.5" SAS/SATA, 12 x 3.5" SAS/SATA or AnyBay, or 8 SAS/SATA + 4 AnyBay
Mid bays: 4 x 3.5" SAS/SATA or 8 x 2.5" SAS/SATA or NVMe, under the top cover (needs 2 CPUs and risers 1 and 2)
Rear bays: 2 or 4 x 3.5" SAS/SATA or 4 or 8 x 2.5" SAS/SATA; plus 2 x 7mm SATA or NVMe (with integrated RAID) in slot 3 or slot 6
Maximum: 40 x 2.5" or 20 x 3.5"; up to 24 NVMe at 1:1 (12 onboard + 3 retimers) or 32 NVMe at 1:2 via 4 switch adapters
Controllers: Onboard SATA (12 ports, Intel VROC SATA RAID), onboard NVMe (up to 12 ports, Intel VROC NVMe RAID), 4-port PCIe 4.0 NVMe retimer, 1611-8P PCIe 4.0 NVMe switch, 12 Gb RAID 530/540/930/940/5350/9350 8i and 16i plus RAID 940-32i (up to 8 GB flash cache; 940 Tri-Mode for U.3 NVMe), 48-port 12 Gb internal expander, 430/440/4350 HBAs
Internal RAID bay: With 2.5" front bays, a cabled internal (CFF) RAID 940-16i/9350 or HBA 440-16i mounts behind the drive bays without using a PCIe slot (not with 3.5" fronts)
M.2 boot: Internal M.2 module for 1 or 2 drives: SATA RAID kit (Marvell 88SE9230), NVMe RAID kit (Marvell 88NR2241) or SATA/NVMe kit (VROC); 2242 to 22110
Optical: None internal; external USB DVD-RW option

Graphics

Onboard: Matrox G200 in the XClarity Controller, 16 MB, max 1920x1200 at 60 Hz
Double-wide GPUs: NVIDIA H100 80GB, L40 48GB, A100 80GB/40GB, A40 48GB, A30 24GB, A16 64GB, Tesla V100S 32GB, RTX A6000 48GB, Quadro RTX 6000 24GB; AMD Instinct MI210 (up to 3, slots 2, 5 and 7)
Single-wide GPUs: NVIDIA L4, A2, T4 and Quadro P620 (up to 8, any slot); NVIDIA A10 24GB (up to 4)
Rules: All GPUs must be identical; a double-wide GPU in slot 2, 5 or 7 blocks slot 1, 4 or 8; controlled GPUs only on the "for AI" base models; field installs need the GPU Full Length Thermal Option Kit

Expansion

Slots 1-3: Riser 1 (CPU 1): x16/x8/x8 PCIe 4.0 (or PCIe 3.0), x16/x16/empty, empty/x16/x16 or single x16; all full height
Slots 4-6: Riser 2 (needs CPU 2): same riser choices as riser 1
Slots 7-8: Riser 3 (cabled): x16/x16 or x8/x8 PCIe 4.0; slot 7 on CPU 1, slot 8 on CPU 2 (both on CPU 1 with one processor)
OCP: Dedicated OCP 3.0 SFF slot, PCIe 4.0 x16
Slot layouts: 8 slots; 6 slots + 4 x 2.5" rear; 4 slots + 8 x 2.5" rear; 4 slots + 2 x 3.5" rear; 2 slots + 4 x 3.5" rear
Internal: Cabled PCIe 4.0 x8 connector for an internal RAID adapter/HBA (2.5" chassis only)
Serial: Optional COM port bracket in slot 3 or slot 6 (depends on riser type and whether a 7mm drive cage is fitted)

Networking

OCP 3.0: Optional 2- or 4-port adapters: 1 GbE (Broadcom 5719, Intel I350), 10GBASE-T (Broadcom 57416/57454, Intel X710-T2L/T4L, Marvell QL41132), 10/25 GbE SFP28 (Broadcom 57414/57454/57504, Intel E810-DA2/DA4, Marvell QL41232, Mellanox ConnectX-4 Lx / ConnectX-6 Lx); one port can be shared with the XCC (NC-SI)
PCIe: 1/10/25 GbE, 100 GbE (Broadcom 57508, ConnectX-6 Dx), InfiniBand HDR100/HDR/NDR200 and NDR 400 Gb (ConnectX-6, ConnectX-7)
Fibre Channel: Emulex LPe35000/35002 32Gb, LPe36002 64Gb, QLogic QLE2770/2772 32Gb HBAs
Management: 1 x RJ-45 10/100/1000 Mb XClarity Controller port

Power

PSU options: 500 W, 750 W, 1100 W Platinum (115/230 V), 1800 W Platinum (230 V), 750 W, 1100 W, 1800 W, 2600 W Titanium (230 V), 1100 W -48 V DC
Redundancy: 1 or 2 hot-swap PSUs; both must be identical
Connector: C14 inlets on AC units up to 1800 W; C20 on the 2600 W unit; Weidmuller terminal on the -48 V DC unit
Input current: 100-127 V: 500 W 5.7 A, 750 W Platinum 8.4 A, 1100 W 12 A; 200-240 V: 500 W 2.7 A, 750 W 4.1 A, 1100 W 6 A, 1800 W 10 A
Cooling: 5 (one CPU) or 6 (two CPUs) hot-swap 60 mm fans, N+1; standard single-rotor (17K RPM) or performance dual-rotor (19K RPM); one or two fans in each PSU

Ports

Front: 1 x USB 3.2 Gen 1, 1 x USB 2.0 (XClarity Controller management), external diagnostics handset port, optional VGA
Rear: 3 x USB 3.2 Gen 1, 1 x VGA, 1 x RJ-45 XCC management, NMI button; optional DB-9 serial (slot 3 or 6)
Internal: 1 x USB 3.2 Gen 1 (OS or licence key)

Physical

Form factor: 2U rack
Dimensions: 445 mm W x 87 mm H x 764 mm D (17.5 x 3.4 x 30.1 in); 482 mm across the rack flanges
Weight: 21.4 kg (47.2 lb) base configuration; up to 38.8 kg (85.5 lb)
Machine types: 7Z72 (1-year warranty), 7Z73 (3-year warranty); 7D15 base model for SAP HANA configurations
Environment: ASHRAE A2 (10-35 C) for most configurations; A3/A4 in some configurations

Management

BMC: Lenovo XClarity Controller (Pilot4 XE401); Standard, Advanced (remote KVM) or Enterprise (virtual media, power capping)
Interfaces: IPMI 2.0 (IPMI-over-LAN off by default), SNMPv3, CIM-XML, REST, Redfish, HTML5 web UI
Local: Front operator panel on the right rack latch; optional pull-out Integrated Diagnostics Panel (LCD) on 8 and 16 x 2.5" fronts; External Diagnostics Handset port; light path LEDs for DIMMs, drives and PSUs
Software: XClarity Provisioning Manager, Administrator, Integrators, Essentials, Energy Manager, Capacity Planner
Security: TPM 2.0 (Nationz TPM in China), Platform Firmware Resiliency root of trust, NIST SP 800-147B, Secure Boot, optional intrusion switch and lockable bezel
Announced: Product guide first published 2021-04-06
Withdrawn: Server withdrawn from marketing (Lenovo Press update of 2025-09-18)

Operating systems

Windows: Windows Server 2016, 2019, 2022, 2025
Linux: RHEL 7.9, 8.2-8.10, 9.0-9.8, 10.0-10.2; SLES 12 SP5, 15 SP2-SP7, 16; Ubuntu 18.04, 20.04, 22.04, 24.04 LTS
VMware: ESXi 6.7 U3, 7.0 U2/U3, 8.0 through 8.0 U3, 9.0, 9.1

Processors

Intel Xeon Silver 4309Y
Intel Xeon Silver 4310
Intel Xeon Silver 4310T
Intel Xeon Silver 4314
Intel Xeon Silver 4316
Intel Xeon Gold 5315Y
Intel Xeon Gold 5317
Intel Xeon Gold 5318N
Intel Xeon Gold 5318S
Intel Xeon Gold 5318Y
Intel Xeon Gold 5320
Intel Xeon Gold 5320T
Intel Xeon Gold 6312U
Intel Xeon Gold 6314U
Intel Xeon Gold 6326
Intel Xeon Gold 6330
Intel Xeon Gold 6330N
Intel Xeon Gold 6334
Intel Xeon Gold 6336Y
Intel Xeon Gold 6338
Intel Xeon Gold 6338N
Intel Xeon Gold 6338T
Intel Xeon Gold 6342
Intel Xeon Gold 6346
Intel Xeon Gold 6348
Intel Xeon Gold 6354
Intel Xeon Platinum 8351N
Intel Xeon Platinum 8352M
Intel Xeon Platinum 8352S
Intel Xeon Platinum 8352V
Intel Xeon Platinum 8352Y
Intel Xeon Platinum 8358
Intel Xeon Platinum 8358P
Intel Xeon Platinum 8360Y
Intel Xeon Platinum 8362
Intel Xeon Platinum 8368
Intel Xeon Platinum 8380