Lenovo ThinkSystem competes strongly with HPE ProLiant and Dell PowerEdge in the enterprise server market. After acquiring IBM’s x86 server business in 2014, Lenovo launched the ThinkSystem series in 2017, offering powerful, flexible, and reliable servers.
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Below, we’ll explore the ThinkSystem rack servers, their features, and technical specifications to help you choose the best fit for your data center.
Lenovo ThinkSystem SR250 V3 Rack Server
Released: 2023
Form Factor: 1U rack
Processor: Up to 1x Intel® Xeon® E-2400 series
Memory: Up to 128 GB DDR5 ECC UDIMM
Drive Bays: Up to 10x 2.5-inch or 4x 3.5-inch drives
Expansion Slots: Up to 2x PCIe slots
GPU Support: Optional NVIDIA GPUs
Power Supply: Supports fixed or redundant power supplies
Management: Lenovo XClarity Controller 2
Lenovo ThinkSystem SR780a V3 GPU Server
Released: 2024
Form Factor: 5U rack
Processor: Up to 2x 5th Gen Intel® Xeon® Scalable processors
Memory: Up to 3 TB DDR5 RDIMM
GPU Support: Up to 8x NVIDIA H100/H200 GPUs
Drive Bays: Up to 12x 2.5-inch NVMe drives
Expansion Slots: Up to 11x PCIe 5.0 x16 slots
Cooling: Lenovo Neptune™ liquid cooling
Lenovo ThinkSystem SR655 Rack Server
Released: 2019
Form Factor: 2U rack
Processor: Up to 1x AMD EPYC™ processor
Memory: Up to 2 TB DDR4
Drive Bays: Up to 32x 2.5-inch or 14x 3.5-inch drives
Expansion Slots: Up to 6x PCIe slots
GPU Support: Up to 6x single-width or 3x double-width GPUs
Power Supply: Redundant power supplies
Management: Lenovo XClarity Controller
Lenovo ThinkSystem SR650 V3 Rack Server
Released: 2022
Form Factor: 2U rack
Processor: Up to 2x 4th Gen Intel® Xeon® Scalable processors
Memory: Up to 8 TB DDR5
Drive Bays: Up to 40x 2.5-inch or 20x 3.5-inch drives
Expansion Slots: Up to 8x PCIe 5.0 slots
GPU Support: Up to 6x single-width or 3x double-width GPUs
Power Supply: Redundant power supplies
Management: Lenovo XClarity Controller
Lenovo ThinkSystem SR670 V2 Rack Server
Released: 2021
Form Factor: 4U rack
Processor: Up to 2x Intel® Xeon® Scalable processors
Memory: Up to 4 TB DDR4
Drive Bays: Configurable storage options
Expansion Slots: Multiple PCIe slots
GPU Support: Up to 8x NVIDIA GPUs
Power Supply: Redundant power supplies
Management: Lenovo XClarity Controller
Lenovo ThinkSystem SR530 Rack Server
Released: 2017
Form Factor: 1U rack
Processor: Up to 2x Intel® Xeon® Scalable processors
Memory: Up to 768 GB DDR4
Drive Bays: Up to 8x 2.5-inch or 4x 3.5-inch drives
Expansion Slots: Up to 3x PCIe slots
Power Supply: Redundant power supplies
Management: Lenovo XClarity Controller
Lenovo ThinkSystem SR630 V2 Rack Server
Released: 2020
Form Factor: 1U rack
Processor: Up to 2x 3rd Gen Intel® Xeon® Scalable processors
Memory: Up to 8 TB with Intel Optane PMem
Drive Bays: Up to 12x 2.5-inch or 4x 3.5-inch drives
Expansion Slots: Up to 3x PCIe 4.0 slots
GPU Support: Up to 2x single-width GPUs
Power Supply: Redundant power supplies
Management: Lenovo XClarity Controller
Lenovo ThinkSystem SR630 Rack Server
Released: 2017
Form Factor: 1U rack
Processor: Up to 2x Intel® Xeon® Scalable processors
Memory: Up to 768 GB DDR4
Drive Bays: Up to 10x 2.5-inch or 4x 3.5-inch drives
Expansion Slots: Up to 3x PCIe slots
GPU Support: Up to 2x single-width GPUs
Power Supply: Redundant power supplies
Management: Lenovo XClarity Controller
Lenovo ThinkSystem SR250 V2 Rack Server
Released: 2021
Form Factor: 1U rack
Processor: Up to 1x Intel® Xeon® E-2300 processor
Memory: Up to 128 GB DDR4 ECC UDIMM
Drive Bays: Up to 8x 2.5-inch or 4x 3.5-inch drives
Expansion Slots: Up to 2x PCIe Gen3 slots
GPU Support: Optional NVIDIA GPUs
Power Supply: Fixed or redundant power supplies
Management: Lenovo XClarity Controller
Lenovo ThinkSystem SR665 V3 Rack Server
Released: 2023
Form Factor: 2U rack
Processor: Up to 2x 4th or 5th Generation AMD EPYC™ processors
Memory: Up to 6 TB DDR5 RDIMM
Drive Bays: Up to 40x 2.5-inch or 20x 3.5-inch drives
Expansion Slots: Up to 12x PCIe Gen5 slots
GPU Support: Up to 8x single-width or 3x double-width GPUs
Power Supply: Redundant power supplies
Management: Lenovo XClarity Controller
Lenovo ThinkSystem SR675 V3 Rack Server
Released: 2024
Form Factor: 3U rack
Processor: Up to 2x AMD EPYC™ processors
Memory: Up to 6 TB DDR5 RDIMM
Drive Bays: Up to 8x SAS/SATA/NVMe drives
Expansion Slots: Up to 6x PCIe Gen5 x16 slots
GPU Support: Up to 8x double-width GPUs or 4x SXM5 GPUs
Power Supply: Redundant power supplies
Management: Lenovo XClarity Controller
Lenovo ThinkSystem SR630 V4 Rack Server
Released: 2024
Form Factor: 1U rack
Processor: Up to 2x Intel® Xeon® Scalable processors
Memory: Up to 8 TB DDR5 with Intel Optane PMem
Drive Bays: Up to 16x EDSFF E3.s drives
Expansion Slots: Up to 5x PCIe Gen5 slots
GPU Support: Up to 3x 75W GPUs
Power Supply: Redundant power supplies
Management: Lenovo XClarity Controller
Lenovo ThinkSystem SR680a V3 Rack Server
Released: 2024
Form Factor: 8U rack
Processor: Up to 2x 5th Gen Intel® Xeon® Scalable processors
Memory: Up to 6 TB DDR5 RDIMM
Drive Bays: Up to 16x 2.5-inch NVMe drives
Expansion Slots: Up to 10x PCIe Gen5 x16 slots
GPU Support: Up to 8x NVIDIA H100/H200 or AMD MI300x GPUs
Power Supply: Redundant power supplies
Management: Lenovo XClarity Controller
Lenovo ThinkSystem SR645 V3 Rack Server
Released: 2023
Form Factor: 1U rack
Processor: Up to 2x 4th or 5th Generation AMD EPYC™ processors
Memory: Up to 6 TB DDR5 RDIMM
Drive Bays: Up to 16x EDSFF drives
Expansion Slots: Up to 5x PCIe Gen4/Gen5 slots
GPU Support: Up to 4x single-width GPUs
Power Supply: Redundant power supplies
Management: Lenovo XClarity Controller
Lenovo ThinkSystem HS350X V3 Rack Server
Released: 2023
Form Factor: 2U rack
Processor: Up to 1x Intel® Xeon® Scalable processor
Memory: Up to 1 TB DDR5 RDIMM
Drive Bays: Up to 24x 3.5-inch HDDs and 2x 2.5-inch NVMe SSDs
Expansion Slots: Multiple PCIe Gen4 and Gen5 slots
GPU Support: Not supported
Power Supply: Redundant power supplies
Management: Lenovo XClarity Controller
Lenovo ThinkSystem SR685a V3 Rack Server
Released: 2024
Form Factor: 8U rack
Processor: Up to 2x AMD EPYC™ processors
Memory: Up to 6 TB DDR5 RDIMM
Drive Bays: Up to 16x 2.5-inch NVMe drives
Expansion Slots: Up to 10x PCIe Gen5 x16 slots
GPU Support: Up to 8x NVIDIA H100/H200 or AMD MI300x GPUs
Power Supply: Redundant power supplies
Management: Lenovo XClarity Controller
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