Lenovo ThinkSystem ST650 V3 Dual Socket Enterprise Tower Server
The Lenovo ThinkSystem ST650 V3 is an ideal 2-socket 4U tower server for small businesses up to large enterprises that need industry-leading reliability, management, and security, as well as maximizing performance and flexibility for future growth. Designed to handle the most demanding workloads, this powerful server supports dual 5th or 4th Gen Intel Xeon Scalable processors with up to 32 cores and up to 4TB of DDR5 memory, delivering exceptional compute power for virtualization, databases, business applications, and data analytics.
Key Features
-
Dual Socket Processing Power: Up to 2x 5th Gen Intel Xeon Scalable processors, up to 250W, with up to 32 cores per processor for demanding enterprise workloads
-
Massive Memory Capacity: Up to 4TB in 32x DIMM slots using 128GB DIMMs; 5600MHz TruDDR5 for high-performance data processing
-
Flexible Storage Options: Up to 32x 2.5" bays (including 24 NVMe bays) or 16x 3.5" bays (including 16 NVMe bays) for vast storage scalability
-
PCIe 5.0 Expansion: Up to 9x PCIe Slots (5x Gen 5 and 4x Gen 4) for GPUs, accelerators, and high-speed networking cards
-
High-Speed Networking: 2x 10GbE ports; 1x 1GbE dedicated management port built-in for fast data transfer
-
Enterprise Management: XClarity Controller with full XClarity software suite for remote management and monitoring
Powerful Processing & Memory
At the heart of the ST650 V3 are 5th or 4th Generation Intel Xeon Scalable processors with core speeds of up to 3.9 GHz and TDP ratings of up to 250 W. The server's 32 DDR5 memory slots support the latest Lenovo TruDDR5 memory operating at up to 5600 MHz, ensuring your applications run at peak performance with massive memory bandwidth. The dual-processor architecture provides 8 memory channels per processor for optimal memory performance and throughput.
Exceptional Storage Scalability
The ThinkSystem ST650 V3 offers unmatched storage flexibility with support for up to 32x 2.5-inch hot-swap drive bays or 16x 3.5-inch hot-swap bays. With support for SAS, SATA, and NVMe drives, you can configure the server for maximum capacity, performance, or a balanced mix. Up to 24 NVMe bays provide blazing-fast storage performance for latency-sensitive applications, while the onboard SATA and NVMe RAID controllers with VROC support ensure data protection and performance.
Advanced Connectivity & Expansion
The server includes dual embedded 10GBASE-T Ethernet ports for high-speed network connectivity right out of the box. With up to 9 PCIe slots including five PCIe 5.0 slots, you can add high-performance GPUs for AI workloads, 200GbE network adapters, NVMe storage controllers, or other expansion cards. The PCIe 5.0 x16 slot provides 128 GB/s bandwidth, enough to support cutting-edge accelerators and dual-port high-speed networking.
Enterprise-Grade Reliability & Management
Built for mission-critical environments, the ST650 V3 features hot-swap redundant power supplies up to 2600W Titanium efficiency, hot-swap redundant cooling fans, and predictive failure analysis. Lenovo XClarity Controller provides comprehensive remote management capabilities, including remote console access, firmware updates, and system monitoring. Security features include Lenovo ThinkShield, lockable security bezel, chassis intrusion switch, and TPM 2.0.
Versatile Deployment Options
Designed as a 4U rackable tower server, the ST650 V3 can be deployed as a standalone tower in an office environment or rack-mounted in a data center with optional rack conversion rails. This flexibility makes it ideal for edge deployments, remote offices, small to medium data centers, and enterprise server rooms.
Ideal Applications
- Virtualization and cloud infrastructure (VMware, Hyper-V, KVM)
- Database servers (SQL Server, Oracle, MySQL, PostgreSQL)
- Business applications and ERP systems
- File and print servers
- Storage servers and NAS
- AI and machine learning workloads
- High-performance computing and scientific applications
Full Specifications
System Architecture
| Form Factor |
4U Tower / Rackable Tower |
| Machine Types |
7D7A (3 year warranty) / 7D7B (1 year warranty) |
| Processor Sockets |
Dual socket (up to 2 processors) |
Processors
| Supported Processors |
5th Gen or 4th Gen Intel Xeon Scalable processors |
| Maximum Cores per Processor |
Up to 32 cores |
| Maximum Threads |
Up to 64 threads per processor |
| Maximum Clock Speed |
Up to 3.9 GHz |
| Maximum TDP |
250W per processor |
| PCIe Lanes |
Up to 80x PCIe 5.0 lanes per processor |
Memory
| Memory Type |
Lenovo TruDDR5 RDIMMs, 9x4 RDIMMs, 3DS RDIMMs |
| Memory Slots |
32x DIMM slots (16 per processor) |
| Memory Speed |
Up to 5600 MHz |
| Maximum Memory Capacity |
4TB (32x 128GB DIMMs with dual processors) |
| Memory Channels |
8 channels per processor (2 DIMMs per channel) |
| Maximum with Single Processor |
2TB (16x 128GB DIMMs) |
Storage
| 2.5-inch Configuration |
Up to 32x 2.5" hot-swap bays (including up to 24 NVMe bays) |
| 3.5-inch Configuration |
Up to 16x 3.5" hot-swap bays (including up to 16 NVMe bays) |
| Supported Drive Types |
SAS, SATA, NVMe |
| Onboard Storage Controllers |
Onboard SATA and NVMe with VROC RAID support |
| Optional RAID/HBA |
PCIe Gen 3/4/5 RAID/HBA adapters; 8, 16, and 32-port configurations |
| Media Bays |
2x half-height 5.25" media bays (optical drives, LTO tape) |
| Internal USB |
2x Internal USB 3.1 Gen 1 (5 Gb/s) |
| M.2 Support |
Optional M.2 adapter |
Expansion Slots
| Total PCIe Slots |
Up to 9x PCIe slots |
| PCIe 5.0 Slots |
5x PCIe 5.0 slots (including three x16 slots) |
| PCIe 4.0 Slots |
4x PCIe 4.0 slots |
| Single Processor Configuration |
Slots 1-4 and slot 9 available; slots 5-8 not available |
Networking
| Onboard Ethernet |
2x 10GBASE-T RJ45 ports (10GbE / 1GbE) |
| Management Port |
1x 1GbE RJ45 dedicated management port (XClarity Controller) |
| Network Controller |
PCIe 3.0 x8 integrated controller |
I/O Ports
| Front Ports |
1x USB 3.1 Gen 1, 1x USB 2.0 (XClarity Mobile support) |
| Rear Ports |
4x USB 3.1 Gen 1 (5 Gb/s), 1x VGA, 1x DB-9 COM serial port (optional), 1x External LCD Diagnostics Handset port (optional) |
Power Supply
| Power Supplies |
Dual redundant hot-swap AC power supplies |
| Maximum Power |
Up to 2600W |
| Efficiency Rating |
Titanium (94%+) |
| Energy Star |
Energy Star 3.0 compliant |
Cooling
| Fans |
4x 92mm hot-swap redundant fans |
Systems Management
| Management Controller |
XClarity Controller (XCC) with upgrades |
| Management Software |
Full XClarity software suite including XClarity Administrator |
| Security Features |
Lenovo ThinkShield, chassis intrusion switch (optional), lockable security bezel, TPM 2.0, pluggable RoT module |
| Diagnostics |
Optional External Diagnostics Handset support |
Operating Systems
| Supported OSes |
Microsoft Windows Server, SUSE Linux Enterprise Server, Red Hat Enterprise Linux, VMware vSphere (ESXi) |
Physical Specifications
| Dimensions (H × W × D) |
462 mm × 175 mm × 734 mm (18.2" × 6.9" × 28.9") |
| Dimensions with Foot Stand |
461.4 mm × 247.4 mm × 733.8 mm (18.17" × 9.74" × 28.89") |
| Maximum Weight |
39.1 kg (86.2 lb) |
| Weight (2.5" config) |
Maximum 40.21 kg (88.6 lb) |
| Weight (3.5" config) |
Maximum 42.74 kg (94.2 lb) |
Environmental
| Reliability Features |
Predictive Failure Analysis, hot-swap/redundant drives, fans and power supplies |
| Chipset |
Intel C741 |
Specifications are sourced from the manufacturer product page and may be updated. This is a configure-to-order (CTO) base configuration model.
