ThinkSystem SR645
Standout versatility in 1U
Skillful Performance
The Lenovo ThinkSystem SR645 utilizes a combination
of two AMD EPYC 7002 CPUs in a compact 1U rack
server form factor that results in extreme CPU core and
memory density. These features deliver the next era of
solution performance for enterprise data center
operations such as database, analytics and
virtualization workloads. Lenovo’s lauded system
reliability, XClarity management capabilities, and
security infrastructure layer add to the exceptional
value that the ThinkSystem SR645 brings to the data
center.
The modern data center demands ever-expanding
capability, requiring server technology to deliver more
performance that test the limits of physics. With the
enterprise-class AMD EPYC™ 7002 processor, the
world’s first 7nm data center CPU, the ThinkSystem
SR645 features up to an unprecedented 128 cores and
128 Gen4 PCIe lanes in a server to maximize server
utilization and decrease network bottlenecks in HPC
workloads.
Versatile Design
The ThinkSystem SR645’s versatility addresses a wide
range of data management solutions. Support for
multiple GPUs in 1U streamlines performance for virtual
desktop infrastructure (VDI) deployments, providing
the technical resources to aid in scale-out VDI instances
for a growing enterprise workforce.
Unique Lenovo AnyBay technology provides optimized
storage flexibility and performance, with support for up
to 12x 2.5-inch SAS/SATA HDDs/SSDs. High-speed, low
latency NVMe storage is ideal for caching data utilized
in analytics and database deployments to gain better
business insights and take control of the growing
volume, variety, and velocity of data.
© 2020 Lenovo. All rights reserved.
Availability: Offers, prices, specifications and availability may change without notice. Lenovo is not responsible for photographic or typographic
errors. Warranty: For a copy of applicable warranties, write to: Lenovo Warranty Information, 1009 Think Place, Morrisville, NC, 27560. Lenovo
makes no representation or warranty regarding third-party products or services. Trademarks: Lenovo, the Lenovo logo, AnyBay®, ThinkSystem,
and XClarity® are trademarks or registered trademarks of Lenovo. Linux® is the trademark of Linus Torvalds in the U.S. and other countries.
Microsoft®, Windows Server®, and Windows® are trademarks of Microsoft Corporation in the United States, other countries, or both. Other
company, product, or service names may be trademarks or service marks of others. Document number DS0110, published May 5, 2020. For the
latest version, go to lenovopress.com/ds0110.
Innovative Management
The ThinkSystem SR645 features Lenovo’s lauded
XClarity system management suite. The XClarity
management controller supports an easy-to-use
application with industry standard Redfish-compliant
REST APIs that provide streamlined hardware
provisioning and maintenance and enable a data-driven,
centralized view of data center operations.
Trust Lenovo ThinkShield to protect and defend your data
center infrastructure from attacks, with a comprehensive
end to end approach to security that begins with
development and continues through supply chain and the
full life cycle of the server. AMD EPYC processors also
offer unique security features, embedded with secure
boot and full memory encryption capabilities to address
growing security-threats.
Finally, Lenovo’s portfolio of services support the full
lifecycle of your Lenovo IT assets - from planning,
deployment and support to asset recovery.
Why Lenovo
Lenovo is the leading provider of x86 systems for the
data center. The portfolio includes rack, tower, blade,
dense and converged systems, and supports enterprise
class performance, reliability and security.
Lenovo also offers a full range of networking, storage,
software and solutions, and comprehensive services
supporting business needs throughout the IT lifecycle.
For More Information
To learn more about the Lenovo ThinkSystem SR645,
contact your Lenovo representative or Business Partner
or visit lenovo.com/thinksystem. For detailed
specifications consult the ThinkSystem SR645 product
guide.
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Specifications
Product Name(s) ThinkSystem SR645
Form Factor 1U rack server
Processors Up to two (2) AMD EPYC™ 7002 Generation Processors, up to 64C, 280W
Memory 32 DDR4 memory slots; Maximum 4TB using 128GB RDIMMs; up to 1DPC at 3200MHz, 2DPC at
3200MHz
Drive Bays Up to 4x 3.5-inch or 12x 2.5-inch drives; Maximum of 10x NVMe drives with 1:1 connection
Expansion Slots Up to 3x PCIe 4.0 slots, 1x OCP 3.0 adapter slot
GPU Up to 3x single-width 75W GPUs
Network Interface OCP 3.0 mezz adapter, PCIe adapters
Power Dual redundant PSUs (up to 1800W Platinum)
Ports Front: 1x USB 3.0, 1x USB 2.0, 1x VGA (optional)
Rear: 3x USB 3.1, 1x Serial port (optional) 1x RJ-45 (management)
Systems Management Lenovo XClarity Controller
OS Support Microsoft Windows Server, SUSE Linux Enterprise Server, Red Hat Enterprise Linux, VMware ESXi
Limited Warranty 1- and 3-year customer replaceable unit and onsite services, next business day 9x5; optional
service upgrades
For more details please see the ThinkSystem SR645 product guide .