Lenovo ThinkSystem SR635 V3 Server

Combining performance and flexibility, the SR635 V3 server is a great choice for enterprises of all sizes. The server offers a broad selection of drive and slot configurations and offers high performance features that industries such as finance, healthcare and telco need. Outstanding reliability, availability, and serviceability (RAS) and high-efficiency design can improve your business environment and can help save operational costs.

Scalability and performance

The following features boost performance, improve scalability and reduce costs:

• Supports one 5th Gen AMD EPYC 9005 processors
  • Up to 160 cores and 320 threads
  • Core speed of up to 4.0 GHz
  • TDP rating of up to 400 W
• Supports one 4th Gen AMD EPYC 9004 processors
  • Up to 128 cores and 256 threads
  • Core speed of up to 4.1 GHz
  • TDP rating of up to 400 W
• Support for DDR5 memory DIMMs to maximize the performance of the memory subsystem:
  • 12 DDR5 memory DIMMs
  • 12 memory channels (1 DIMM per channel)
  • DIMM speeds up to 6400 MHz
  • Using 256GB 3DS RDIMMs, the server supports up to 3TB of system memory
• Supports up to four single-width GPUs (3 in rear slots, 1 in front slots), each up to 75W for substantial processing power in a 1U system.
• The server is Compute Express Link (CXL) v1.1 Ready. With CXL 1.1 for next-generation workloads, you can reduce compute latency in the data center and lower TCO. CXL is a protocol that runs across the standard PCIe physical layer and can support both standard PCIe devices as well as CXL devices on the same link.
• Supports up to 12x 2.5-inch hot-swap drive bays, by using combinations of front-accessible (up to 10 bays) and rear-accessible (2 bays).
• Supports 16x NVMe drives without the need for additional NVMe adapters and without oversubscription of PCIe lanes (1:1 connectivity). The use of NVMe drives maximizes drive I/O performance, in terms of throughput, bandwidth, and latency.
• Supports 12x SATA drives using the onboard SATA controller (no additional adapter needed), enabling lower cost, high capacity storage solution for cold storage workloads.
• Supports 12x SAS drives using a variety of support RAID controllers or SAS HBAs.
• Supports high-speed RAID controllers from Lenovo and Broadcom providing 12 Gb SAS connectivity to the drive backplanes. A variety of PCIe 3.0 and PCIe 4.0 RAID adapters are available.
• Supports two externally accessible 7mm hot-swap drives for operating system boot functions or data storage. Optional RAID-0 or RAID-1.
• Supports M.2 drives for convenient operating system boot functions. Available M.2 adapters support either one M.2 drive or two M.2 drives. Optional RAID-0 or RAID-1.
• Supports up to 5x PCIe slots, 3x at the rear of the server and 2x at the front of the server. Also supports 1x OCP 3.0 slot, either in the front or in the rear.
• The server has a dedicated industry-standard OCP 3.0 small form factor (SFF) slot, with a PCIe 5.0 x16 interface, supporting a variety of Ethernet network adapters. Simple-swap mechanism with thumbscrews and pull-tab enables tool-less installation and removal of the adapter. Supports shared BMC network sideband connectivity to enable out-of-band systems management.
• The server offers PCI Express 5.0 (PCIe Gen 5) I/O expansion capabilities that doubles the theoretical maximum bandwidth of PCIe 4.0 (32GT/s in each direction for PCIe 5.0, compared to 16 GT/s with PCIe 4.0). A PCIe 5.0 x16 slot provides 128 GB/s bandwidth, enough to support a 400GbE network connection.