Lenovo ThinkSystem SR635 V3 Rack Server

  • One 4th Generation AMD EPYC™ Series processors
  • Up to 12x TruDDR5 DIMM slots 4800MHz memory
  • Up to 16x EDSFF drives for high performance storage
  • Up to 5x PCIe 4.0 slots and, up to 2x PCIe 5.0 slots for I/O flexibility
  • Up to 4x Single-width GPUs for graphics-intensive workloads
  • ThinkShield Security peace of mind throughout the entire lifecycle of the server
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Agility, space, and speed

The ThinkSystem SR635 V3 is designed with storage-rich versatility. You can use various combinations utilizing AnyBay technology. You can configure it for today’s workloads and easily scaled up or down as needed.

Ultimate delivery in performance

The versatile ThinkSystem SR635 V3 provides better performance to offset rising costs with the 4th Gen AMD EPYC™ processor offering optimum processing power. It also features bandwidth and storage speed for business applications, virtualization, and the cloud.

Secure and easy to manage

When server reliability, management and security are top of mind, the ThinkSystem SR635 V3 checks all the boxes. ITIC named Lenovo servers #1 for reliability and uptime. Security with Lenovo ThinkShield also begins at the factory with our Root of Trust and follows the server throughout its life.

Form Factor / Depth

1U rack


One 4th Generation AMD EPYC™ Processor


12x TruDDR5 DIMM slots at 1DPC
Maximum 3TB using 256GB 3DS RDIMMs
Up to 1 DPC at 4800MHz

Drive Bays

Up to 12x 2.5" hot-swap drive bays (Combinations of SAS/SATA, NVMe, or AnyBay™)
Up to 16 EDSFF
Boot Drives: Two 7mm drives at the rear; Internal M.2 module supporting up to two M.2 drives

GPU Support

Up to 4x single-width GPUs

HBA/RAID Support

Hardware RAID; HBAs

Power Supply

Dual Redundant AC & DC supplies with Titanium/Platinum for ErP Lot9 Compliance

Network Interface

OCP 3.0 mezz adapter; 1GbE Dedicated Management, optional 2nd port using OCP slot


Up to 5x PCIe 4.0 slots, up to 2x PCIe 5.0 slots; Up to 64x lanes via onboard NVMe connectors


Front Operator Panel or Integrated diagnostic panel
1x USB 3.1 and 1x USB 2.0 with XCC connection for mobile device
Optional VGA port
External diagnostic port for optional External Diagnostic Handset
3x USB 3.1 ports
1x VGA port
Optional Serial (COM) port
System ID LED, Error LED, NMI button

Systems Management

ThinkSystem XClarity Controller based on AST2600
Pluggable hardware root of trust (RoT) module with TPM 2.0 (Optional)

OS Support

Microsoft Windows Server
SUSE Linux Enterprise Server
Red Hat Enterprise Linux
VMware vSphere

Limited Warranty

1- and 3-year customer replaceable unit and onsite service, next business day 9×5; optional service upgrades


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