ThinkSystem SD650-N V3 Supercomputing Server
Lenovo ThinkSystem SD650-N V3 for AI & HPC
- 2x 5th Gen Intel® Xeon® Scalable processors, up to 350 W; also supports Intel® Xeon® CPU Max Series processors
- Up to 16x 128GB TruDDR5 memory
- Up to 2x SSDs/NVMe U.2/U.3/E3.S 1T; 1x M.2 local storage
- Support for InfiniBand
- Powered by Lenovo Neptune™ Liquid Cooling technology
Features

Lenovo Neptune™ Technology
The ThinkSystem SD650-N V3 with Lenovo Neptune™ Direct Water Cooling (DWC) technology utilizes warm-water cooling to remove heat from the CPUs, memory, I/O, local storage, and voltage regulators. All critical components operate at lower temperatures, delivering greater performance and density in quiet, energy efficient system.

Cool Performance
A decade of experience in direct water-cooling sets Lenovo apart. The Lenovo ThinkSystem SD650-N V3 is based on our 5th generation Lenovo Neptune™ direct water-cooling platform.
The combination of market leading NVIDIA acceleration technology with our market leading water-cooling solution from Lenovo results in extreme performance and form factor.

Whisper Quiet, Energy Efficient
Thanks to its effective water-cooling system the ThinkSystem SD650-N V3 does not have any built-in fans. Using hardware and software optimization, customers who have installed Neptune™ DWC systems have reported energy cost savings of up to 40%. The system runs almost silently after the fans are taken out of the equation.

Intel On Demand processor licensing enabled
Intel® On Demand (previously SDSi) is a new service introduced with 4th and 5th Gen Intel® Xeon® Scalable processors. It enables expanding or upgrading accelerator and hardware-enhanced features on most 4th Gen Xeon processor SKUs. Supported features: Intel® Dynamic Load Balancer, Data Streaming Accelerator, In-Memory Analytics Accelerator, Quick Assist Technology, and Software Guard Extensions.
Specifications may vary depending upon region / model.
3D Tour
Tech Specs
Form Factor | Full-wide 1U tray; 1 node+GPUs per tray |
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Chassis | DW612S Enclosure (6U) |
Processor | Two 5th Gen Intel® Xeon® Scalable processors per tray, or 2x Intel® Xeon® CPU Max Series processors per tray |
Memory | Up to 2TB using 16x 128GB 5600MHz TruDDR5 RDIMM slots per tray |
I/O Expansion | NVIDIA ConnectX-7 4-chip VPI PCIe Gen5 Mezz Board for GPUDirect I/O |
Acceleration | NVIDIA HGX™ H100 4-GPU with 4x NVLink connected SXM5 GPUs |
Storage |
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RAID Support | OS Software RAID |
Network Interfaces | Two onboard Ethernet interfaces: 2x 25GbE SFP28 LOM (1Gb, 10Gb or 25Gb capable; supports NC-SI) and 1x 1GbE RJ45 (supports NC-SI) |
Power Management | Rack-level power capping and management via open-source management software Confluent and application-level energy optimization through Energy Aware Runtime (EAR) |
Systems Management | Systems management using Lenovo HPC&AI Software stack with Lenovo Intelligent Computing Orchestration (LiCO) portal and XClarity Controller (XCC). Supports TPM 2.0 for advanced cryptographic functionality. SMM management module in the enclosure, supports daisy chaining to reduce cabling requirements |
Front access | All adapters and drives are accessible from the front of the server. Front ports include KVM breakout connector and External Diagnostics Handset port for local management. |
Rear access | 2x RJ45 on the SMM management module in the enclosure for XCC with daisy chain support; USB 2.0 for SMM FFDC log collection |
Power Supply | Up to 9x hot-swap air-cooled power supplies (2400W Platinum, 2600W Titanium), or Up to 3x hot-swap direct-water-cooled power supplies (7200W Titanium) Supports up to N+1 redundancy |
Cooling Design | Direct Water Cooling at the heat source with up to 45°C inlet water temperature |
OS Support | Red Hat, SUSE, Rocky Linux (with LeSI support); Visit: lenovopress.com/osig for more information. |
Limited Warranty | 3-year customer replaceable unit and onsite limited warranty, next business day 9x5, service upgrades available |
Services

Solution Services

Implementation Services

Support Services