Lenovo
ThinkSystem SR645
Best high-density server for demanding enterprise computing and data-intensive workloads.
The Lenovo ThinkSystem SR645 is a powerful 1U rack server designed for high-performance computing and dense workloads. It features dual AMD EPYC 7003 "Milan" processors, with this model equipped with a 64-core AMD EPYC 7763 processor and 32GB of TruDDR4 memory. With support for PCIe 4.0, it offers extensive I/O capabilities for accelerators and high-speed NVMe drives. The server includes 8 hot-swappable SFF bays for storage and redundant 1100W power supplies for reliability. Its robust design makes it ideal for demanding applications requiring maximum core density and processing power.
$10884.72
More ThinkSystem SR645 Options
Owner Satisfaction
4.5
/ 5
Category Rank
49
/ 394
#49 in Computer Servers
Price vs Category Average
+62%
Above average
Product Name
645776332
/ Thinksystem SR GB
Who it's for
- Enterprise architects managing high-demand virtualization and database workloads
- Data center managers prioritizing high compute density in limited space
- IT administrators needing versatile storage for diverse application requirements
Who should skip it
- General office users or consumers seeking standard computing hardware
- Small businesses lacking dedicated technical staff for complex infrastructure
- Budget-conscious buyers requiring a low-cost entry-level server solution
Performance breakdown
Compute Density
Sixty-four cores in a 1U chassis delivers exceptional processing power.
I/O Throughput
PCIe 4.0 support ensures rapid data transfer for demanding accelerator workloads.
Memory Scalability
Thirty-two slots allow for massive memory expansion up to 8TB.
Remote Management
XClarity Controller provides robust, enterprise-grade oversight for complex server environments.
System Reliability
Redundant, hot-swappable power supplies ensure consistent uptime for critical operations.
Storage Flexibility
Eight hot-swappable bays offer versatile configuration options for high-speed storage needs.
Key Specs
Product Name
Thinksystem SR645 7763 32GB
Product Line
ThinkSystem
Product Series
SR645
Product Model
7D2X1006NA
Product Type
Server
Total Number of USB Ports
6
Number of USB 2.0 Ports
1
Network (RJ-45)
Yes
Features
- Dual socket 1U server supporting AMD EPYC 7002/7003 processors
- Up to 64 cores per processor for dense workloads
- PCIe 4.0 support for high-speed I/O and accelerators
- Ideal for GPU processing and high-performance NVMe drives
- 8 hot-swappable SFF bays for flexible storage configurations
- Redundant 1100W hot-swappable power supplies for enhanced reliability
- XClarity Controller (XCC) Enterprise for advanced remote management
What customers say
Customers consistently praise the ThinkSystem SR645 for its exceptional reliability and robust performance. Users frequently highlight its dependable operation, making it a trusted choice for critical workloads. The server's ability to maintain high performance under demanding conditions is a recurring positive point, ensuring smooth and efficient data center operations. Many appreciate the peace of mind that comes with its consistent uptime and powerful processing capabilities, contributing to a highly positive user experience in enterprise environments.
Know before you buy
The SR645 is designed for high-performance computing and dense workloads that require significant processing power. Its 64-core AMD EPYC processor and PCIe 4.0 support make it an excellent choice for GPU-accelerated tasks, virtualization, and data-intensive applications.
Yes. The server features 32 memory slots in total, allowing you to scale up to a maximum of 8TB of TruDDR4 memory as your business needs grow.
Yes, it comes equipped with two 1100W hot-swappable power supplies. This redundant setup ensures that your server remains operational even if one power source fails.
The XCC Enterprise provides advanced remote management capabilities, allowing you to monitor, configure, and troubleshoot your server from anywhere. It simplifies administrative tasks and helps reduce downtime by providing real-time system health insights.
The SR645 includes 8 hot-swappable SFF bays, providing flexible storage configurations. It also features a 12Gb/s SAS controller that supports various RAID levels, including 0, 1, 5, 6, 10, 50, and 60, to balance performance and data protection.
Yes, the server includes two PCIe 4.0 expansion slots—one low-profile and one full-height, half-length (FHHL). These slots are ideal for adding high-speed network adapters, storage controllers, or accelerators.
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