• Lenovo ThinkSystem SR-Series Models 

    Lenovo’s ThinkSystem SR-series spans 1U to 4U rack configurations, single-socket to four-socket architectures, and both Intel® Xeon® Scalable and AMD EPYC™ processor platforms. These servers address everything from small-business virtualization and cloud to GPU-accelerated AI/HPC and mission-critical enterprise workloads Lenovo Press.

    Lenovo ThinkSystem SR650 / SR650 V3

    The SR650 is a versatile 2-socket 2U rack server optimized for a broad range of workloads, including databases, VDI, enterprise applications, and analytics Lenovo Press. It supports Intel® Xeon® Scalable processors (Gen 1 / Gen 2), up to 3 TB TruDDR4 memory, and flexible storage (12 x 3.5″ or 24 x 2.5″ bays) Lenovo.

    The SR650 V3 upgrades to 4th- and 5th-Gen AMD EPYC™ processors, retaining the same 2U form factor but adding DDR5 support and NVMe-optimized storage options. It excels at virtualization, cloud, and HPC workloads thanks to higher memory bandwidth and core counts Lenovo Press.

    Lenovo ThinkSystem SR630 / SR630 V2 / SR630 V3

    The SR630 family offers 1U, dual-socket flexibility for IT infrastructure, cloud, and web services. The original SR630 (Xeon SP Gen 1 / 2) delivers up to 768 GB TruDDR4 and eight 2.5″ or four 3.5″ drive bays Lenovo Press.

    The SR630 V2 moves to 3rd-Gen Xeon Scalable (“Ice Lake”) and Intel Optane™ Persistent Memory, enhancing storage-rich and database workloads Lenovo Press.

    The SR630 V3 further advances to AMD EPYC™ 9004/9005 Series, DDR5 memory, and EDSFF NVMe support, making it ideal for cloud-native, virtualization, and mid-range analytics deployments Lenovo Press.

    Lenovo ThinkSystem SR860 / SR860 V3

    As a 4-socket 4U rack, the SR860 uses up to four Intel Xeon® Scalable Gen 2 processors (28 cores each), delivering massive memory capacity (up to 12 TB) and GPU support for VDI and AI inference Lenovo Press.

    The SR860 V3 evolves to 4th-Gen Xeon Scalable CPUs, up to 16 TB DDR5, 18 PCIe slots, and 48 x 2.5″ drive bays. It’s targeted at large-scale virtualization, in-memory databases, and GPU-accelerated HPC Lenovo Press.

    Lenovo ThinkSystem SR850 / SR850 V3

    The SR850 delivers two- to four-socket performance in a compact 2U chassis, supporting Gen 2 Xeon Scalable processors and a mix of HDD/SSD storage for enterprise consolidation and data-intensive applications Lenovo Press.

    With SR850 V3, Lenovo adds 4th-Gen Xeon Scalable Gold/Platinum, upgradable to four sockets, and enhanced storage flexibility—ideal for mission-critical databases, ERP, and virtualization farms Lenovo Press.

    Lenovo ThinkSystem SR530

    The 1U SR530 balances performance, capacity, and value in a dual-socket chassis. It supports up to 768 GB TruDDR4, eight 2.5″ or four 3.5″ bays, and flexible I/O expansion, making it suitable for edge computing, SMB virtualization, and web servers Lenovo Press.

    Lenovo ThinkSystem SR675 V3

    The SR675 V3 is a GPU-rich 3U rack server built on AMD EPYC™ 9004/9005 processors. It supports up to eight double-wide or single-wide GPUs (NVIDIA H200, L40S, or AMD Instinct™ MI accelerators) with NVLink and hybrid liquid-to-air cooling, enabling leading performance for AI training, inference, and HPC workloads Lenovo Press.

    Other SR-Series Models

    Models like the SR590, SR558, SR550, SR530 (detailed above), and the specialty SR158 expand Lenovo’s portfolio to cover entry-level workloads, small-business servers, and storage-optimized configurations. All share ThinkSystem reliability, management via XClarity Controller, and Lenovo’s global support

    Lenovo’s ThinkSystem SR family spans 1U to 4U rack servers designed for entry-level, general-purpose, high-performance, and mission-critical use cases. Models like the SR158/SR150 cater to cost-sensitive, virtualization-ready environments, while SR530/SR550/SR590 balance performance and capacity in 1U or 2U form factors Welcome | ServerProvenLenovo. Midrange platforms such as SR630/SR650 support mainstream enterprise workloads—databases, VDI, and cloud services—with up to 3 TB memory and up to 24 front-bay drives Lenovo Press. For high-end consolidation and mission-critical tasks, the SR850/SR860/SR868/SR868 V3 and SR860 V3 deliver 4-socket scalability, large I/O capacity, and GPU support for AI/HPC acceleration Lenovo Press. The GPU-rich SR675 V3 extends this with up to eight double-wide NVIDIA GPUs and AMD EPYC 9004 series CPUs with hybrid liquid-to-air cooling Lenovo Press. Across the series, Lenovo emphasizes flexibility—offering diverse processor families (Intel Xeon Scalable Gen 1/2, AMD EPYC), extensive memory and storage options, and integrated management tools—to meet evolving data-center demands.

    Model Lineup & Key Specs

    ModelU-HeightCPU FamilyMax MemoryDrive BaysGPU Support
    SR158/SR1501UIntel Xeon E-2100/E-220064 GB DDR44×2.5″ or 2×3.5″No ServerProven
    SR5301UIntel Xeon SP Gen 1/2768 GB TruDDR48×2.5″ or 4×3.5″No Lenovo Press
    SR5502UIntel Xeon SP Gen 1/2768 GB TruDDR416×2.5″ or 12×3.5″No Lenovo Press
    SR5902UIntel Xeon SP Gen 21 TB DDR416×2.5″ or 14×3.5″No Lenovo Press
    SR6301UIntel Xeon SP Gen 1/23 TB DDR410×2.5″ or 4×3.5″Optional single GPU Lenovo Press
    SR6502UIntel Xeon SP Gen 1/23 TB DDR424×2.5″ or 14×3.5″Optional dual GPUs Lenovo Press
    SR6581UIntel Xeon 320432 GB DDR4No drives (storage off-node)No 
    SR675 V33UAMD EPYC 9004/90054 TB DDR56×2.5″Up to 8× double-wide GPUs Lenovo Press
    SR8502UIntel Xeon Scalable Gen 26 TB DDR412×3.5″ or mixed baysOptional multi-GPU Lenovo Press
    SR860/SR860 V34UIntel Xeon Scalable Gen 2/36 TB DDR424×2.5″ or 12×3.5″GPU slots + NVLink Lenovo Press
    SR8682UIntel Xeon Bronze 522064 GB DDR4No internal drivesNo 

    Key Differentiators

    • Entry & Value (SR150/SR158/SR530): Compact form factors and balanced I/O for SMBs and ROBO deployments.

    • Mainstream Enterprise (SR550/SR590): Expanded memory and storage capacity for virtualization, databases, and cloud-native workloads.

    • Performance & Scalability (SR630/SR650): High memory density, GPU-capable, and flexible drive configurations for mixed workloads.

    • Mission-Critical & AI/HPC (SR675 V3, SR850, SR860, SR868): Multi-socket support, GPU acceleration, and advanced cooling options for AI training, in-memory databases, and computationally intensive research.

    Usage Scenarios

    • Virtual Desktop Infrastructure (VDI): SR530/SR550 serve desktop virtualization with cost-effective density and remote management. Lenovo Press

    • Database & Analytics: SR630/SR650 handle large transactional databases and analytics pipelines with high I/O throughput. Lenovo Press

    • AI Training & Inference: SR675 V3 with up to eight NVIDIA GPUs accelerates deep-learning frameworks at scale. Lenovo Press

    • Mission-Critical Consolidation: SR860/SR850 deliver four-socket reliability and capacity for ERP, CRM, and virtualization clusters. Lenovo Press

    Frequently Asked Questions (FAQs)

    1. What distinguishes the SR650 from the SR630?
      SR650 (2U) offers double the memory capacity (up to 3 TB) and more drive bays (24×2.5″) compared to the 1U SR630 (up to 1 TB, 10×2.5″) Lenovo Press.

    2. Can the SR868 be used for high-performance workloads despite lacking internal storage?
      Yes—SR868 is optimized for stateless, network-boot or SAN environments with high core-count Xeon Bronze CPUs for lightweight compute tasks.

    3. Which models support liquid cooling?
      Only select high-end systems like the SR675 V3 (Lenovo Neptune) incorporate hybrid liquid-to-air cooling for GPU-dense configurations Lenovo Press.

    4. Are the SR150 and SR158 interchangeable?
      They share similar chassis but differ in OEM branding and firmware. Compatibility lists should be checked for exact part numbers Welcome | ServerProven.


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