• Lenovo SR645 1U rack server with AMD EPYC 7002/7003 processors
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Lenovo

Lenovo SR645 | ThinkSystem 1U Dual AMD EPYC Server, 32x DDR4 3200MHz

SR645

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Description

The Lenovo ThinkSystem SR645 is a high-density 1U dual-socket rack server powered by AMD EPYC 7002 or 7003 series processors, delivering up to 128 cores of compute power with PCIe 4.0 support. Designed for virtualization, database, and HPC workloads, it offers flexible storage configurations with support for up to 10x 2.5-inch or 4x 3.5-inch drive bays, plus redundant hot-swap power supplies for mission-critical environments. With up to 8TB DDR4 memory capacity and OCP 3.0 networking, the SR645 provides exceptional performance density in a compact form factor.

Features

Dual AMD EPYC 7002/7003 series processor support with up to 128 cores total
- 32x DDR4 DIMM slots supporting up to 8TB memory at 3200MHz
- PCIe 4.0 I/O with 128 lanes for high-bandwidth expansion and GPU support
- Lenovo AnyBay flexible storage supporting SAS, SATA, and NVMe drives
- Up to 12x onboard NVMe connections freeing PCIe slots for other uses
- OCP 3.0 network adapter slot for standardized, high-performance networking
- Redundant hot-swap power supplies with Platinum/Titanium efficiency ratings
- Support for up to 3x single-width GPUs in 1U form factor
- Lenovo XClarity management with Redfish-compliant REST APIs
- ThinkShield security features with hardware root of trust
- Advanced RAS features including memory mirroring and SDDC
- Tool-less drive installation and hot-swap serviceability
- Energy-efficient 1.2V DDR4 memory and low-power SSD options
- Multiple drive bay configurations: 10x 2.5-inch or 4x 3.5-inch front bays
- Optional rear storage: 2x M.2 drives or 2x 2.5-inch/7mm NVMe drives

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Technical Specifications

Form Factor: 1U rack-mount server
- Processors: Dual-socket AMD EPYC 7002 (Rome) or 7003 (Milan) series, up to 64 cores per CPU (128 cores total)
- Memory: 32x DIMM slots supporting DDR4 3200MHz, up to 8TB maximum capacity with 256GB RDIMMs
- Storage: Up to 10x 2.5-inch or 4x 3.5-inch hot-swap drive bays (SAS/SATA/NVMe), AnyBay technology, optional rear 2x M.2 or 2x 2.5-inch drives
- I/O Expansion: PCIe 4.0 support with 128 lanes, OCP 3.0 slot, supports up to 3x single-width GPUs
- Networking: OCP 3.0 slot for network adapters
- Power: Redundant hot-swap power supplies with 80 PLUS Platinum or Titanium efficiency
- Management: Lenovo XClarity Controller (XCC) with Redfish API, remote management, SNMP, IPMI 2.0
- Dimensions: Standard 1U form factor, rack-mount ready
- Operating Temperature: 10°C to 35°C (50°F to 95°F)

FAQs

Q: What processor generations does the ThinkSystem SR645 support?
A: The SR645 supports both 2nd Gen AMD EPYC 7002 series (Rome) and 3rd Gen AMD EPYC 7003 series (Milan) processors with up to 64 cores per socket and TDP ratings up to 280W, providing exceptional compute density in a 1U form factor.

Q: What is the maximum memory capacity of the SR645?
A: The SR645 supports up to 8TB of DDR4 memory when equipped with dual 3rd Gen EPYC processors and all 32 DIMM slots populated with 256GB RDIMMs. Memory operates at speeds up to 3200MHz depending on configuration and DIMM type.

Q: Can I mix different drive types in the SR645?
A: Yes, the SR645 features Lenovo AnyBay technology allowing flexible configurations of SAS, SATA, and NVMe drives. The server supports up to 12x 2.5-inch NVMe SSDs via onboard PCIe connections, plus additional rear-mounted storage options.

Q: Does the SR645 support GPU acceleration?
A: Yes, the SR645 can accommodate up to three single-width GPUs in a 1U chassis thanks to its PCIe 4.0 architecture with 128 lanes, making it suitable for VDI, AI inference, and other GPU-accelerated workloads.

Q: What management tools are available for the SR645?
A: The SR645 includes Lenovo XClarity Controller for local and remote management with industry-standard Redfish APIs, plus compatibility with Lenovo XClarity Administrator, VMware vCenter, and Microsoft System Center for centralized data center management.

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