GPULoom

Lenovo ThinkSystem SR635 V3

The Lenovo ThinkSystem SR635 V3 is a 1U rack server from Lenovo, powered by One AMD EPYC processor, either 5th Gen 9005, with up to 12x 2.5-inch hot-swap drive bays.

SKU: SR635-V3 Category: Brand:
Product SKU

SR635 V3

Form Factor

1U rack.

Processor

One AMD EPYC processor, either 5th Gen 9005 ("Turin") or 4th Gen 9004 ("Genoa"). Supports processors up to 160 cores, core speeds of up to 4.1 GHz, and TDP ratings of up to 400W. Supports PCIe 5.0 for high performance I/O.

GPU Support

Supports up to 5x single-wide GPUs

Memory

12 DIMM slots. The processor has 12 memory channels, with 1 DIMM per channel (DPC). Lenovo TruDDR5 RDIMMs, 3DS RDIMMs, and 9×4 RDIMMs are supported. Memory speeds up to 6400 MHz with 5th Gen AMD EPYC processors.

Drive Bays

Up to 12x 2.5-inch hot-swap drive bays:
• Front bays can be one of the following:
– 4x 2.5-inch hot-swap SAS/SATA or NVMe
– 8x 2.5-inch hot-swap SAS/SATA
– 10x 2.5-inch hot-swap SAS/SATA, AnyBay or NVMe, or combinations
– 16x E1.S hot-swap EDSFF NVMe
• Rear can be one of the following:
– 2x 2.5-inch hot-swap SAS/SATA bays
– 2x 2.5-inch hot-swap NVMe bays
– 2x 7mm 2.5-inch hot-swap SATA bays
– 2x 7mm 2.5-inch hot-swap NVMe bays
• Internal M.2 module supporting up to two M.2 drives, for OS boot and drive storage support
Note: The SR635 V3 does not offer 3.5-inch drive bays.
See Storage configurations for details. AnyBay bays support SAS, SATA or NVMe drives. NVMe bays only support NVMe drives. Rear drive bays can be used in conjunction with 2.5-inch front drive bays. The server supports up to 12x NVMe drives all with direct connections (no oversubscription).

Expansion Slots

Up to 5x PCIe slots:
• Rear: Up to 3x PCIe slots plus a slot dedicated to an OCP adapter. Slot availability is based on riser selection and rear drive bay selection.
• Front: Two PCIe slots plus a slot dedicated to an OCP adapter. Front OCP slot is mutually exclusive with rear OCP slot.
Four choices for rear-access slots:
• 3x PCIe x16 low-profile slots
• 1x PCIe x16 full-height half-length slot + 1x PCIe x16 low-profile slot
• 1x PCIe x16 low-profile slot (also supports 2x rear 2.5-inch drive bays)
• 2x PCIe x16 low-profile slot (also supports 2x rear 7mm 2.5-inch drive bays)
For 2.5-inch front drive configurations, the server supports the installation of a CFF RAID adapter or HBA in a dedicated area that does not consume any of the PCIe slots.
PCIe slots at the front of the server:
• OCP slot (mutually exclusive with rear OCP slot)
• 1x PCIe x16 full-height half-length slot + 1x PCIe x16 low-profile slot

Chipset

Not applicable (platform controller hub functions are integrated into the processor)

Maximum Memory

Up to 3TB with 12x 256GB 3DS RDIMMs

Persistent Memory

Not supported

Memory Protection

ECC, SDDC, Patrol/Demand Scrubbing, Bounded Fault, DRAM Address Command Parity with Replay, DRAM Uncorrected ECC Error Retry, On-die ECC, ECC Error Check and Scrub (ECS), Post Package Repair

Maximum Internal Storage

• 2.5-inch drives:
– 368.64TB using 12x 30.72TB 2.5-inch SAS SSDs
– 92.16TB using 12x 7.68TB 2.5-inch SATA SSDs
– 737.28TB using 12x 61.44TB 2.5-inch NVMe SSDs
– 28.8TB using 12x 2.4TB 2.5-inch SAS HDDs
• EDSFF drives
– 122.88TB using 16x 7.68TB E1.S EDSFF NVMe SSDs

Storage Controller

• Onboard NVMe (no RAID) – 16 drives, each x4
• Onboard SATA (no RAID) – 12 drives
• 12 Gb SAS/SATA RAID adapters
– 8 or 16 ports
– Up to 8GB flash-backed cache
– PCIe 4.0 or PCIe 3.0 host interface
• 12 Gb SAS/SATA HBA (non-RAID)
– 8-port and 16-port
– PCIe 4.0 or PCIe 3.0 host interface

Network

Dedicated OCP 3.0 SFF slot with PCIe 5.0 x16 host interface, either at the rear of the server (rear-accessible) or the front of the server (front-accessible). Supports a variety of 2-port and 4-port adapters with 1GbE, 10GbE and 25GbE network connectivity. One port can optionally be shared with the XClarity Controller 2 (XCC2) management processor for Wake-on-LAN and NC-SI support. Additional PCIe network adapters supported in PCIe slots.

Ports

Front: 1x USB 3.1 G1 (5 Gb/s) port, 1x USB 2.0 port (also for XCC local management), External diagnostics port, optional VGA port.
Rear: 3x USB 3.1 G1 (5 Gb/s) ports, 1x VGA video port, 1x RJ-45 1GbE systems management port for XCC remote management. Optional 2nd XCC remote management port (installs in OCP slot). Optional DB-9 COM serial port (installs in slot 3).
Internal: 1x USB 3.1 G1 (5 Gb/s) connector for operating system or license key purposes.

Cooling

Up to 7x N+1 redundant hot swap 40 mm fans, configuration dependent. One fan integrated in each power supply. For high-performance CPUs, the SR635 V3 also offers a closed-loop liquid-cooled heatsink design to more effectively remove heat from the processors. For customers with water infrastructure in their data center, the SR635 V3 also offers Lenovo Neptune Core open-loop water cooling for efficient heat removal.

Power Supply

Up to two hot-swap redundant AC power supplies, 80 PLUS Platinum or 80 PLUS Titanium certification. 750 W, 1100 W and 1800 W AC options, supporting 220 V AC. 750 W and 1100 W options also support 110V input supply. In China only, all power supply options support 240 V DC. Also available is a 1100W power supply with a -48V DC input.

System Management

Operator panel with status LEDs. Optional External Diagnostics Handset with LCD display. Models with 8x 2.5-inch front drive bays can optionally support an Integrated Diagnostics Panel. XClarity Controller 2 (XCC2) embedded management based on the ASPEED AST2600 baseboard management controller (BMC). Dedicated rear Ethernet port for XCC2 remote access for management. Optional 2nd redundant XCC2 remote port supported, installs in the OCP slot. XClarity One for centralized infrastructure management, XClarity Integrator plugins, and XClarity Energy Manager centralized server power management. Optional XCC Platinum to enable remote control functions and other features.

Security

Chassis intrusion switch, Power-on password, administrator's password, Root of Trust module supporting TPM 2.0 and Platform Firmware Resiliency (PFR). In China only, optional Nationz TPM 2.0. Optional lockable front security bezel.

Operating System

Microsoft Windows Server, Microsoft Windows 10 & 11, Red Hat Enterprise Linux, SUSE Linux Enterprise Server, VMware ESXi, Ubuntu Server.

Warranty

Three-year customer-replaceable unit and onsite limited warranty with 9×5 next business day (NBD).

Dimensions (H x W x D)

Width: 440 mm (17.3 in.), height: 43 mm (1.7 in.), depth: 773 mm (30.4 in.). See Physical and electrical specifications for details.

Weight

Maximum: 20.2 kg (44.6 lb)

Overview

The Lenovo ThinkSystem SR635 V3 is a 1U rack server from Lenovo, powered by One AMD EPYC processor, either 5th Gen 9005.

It supports 12 DIMM slots. The processor has 12 memory channels, with 1 DIMM per channel. Maximum memory reaches up to 3TB with 12x 256GB 3DS RDIMMs. Storage is provided by up to 12x 2.5-inch hot-swap drive bays. Expansion is provided by up to 5x PCIe slots. Networking is provided by Dedicated OCP 3.0 SFF slot with PCIe 5.0 x16 host interface, either at the rear of the server.

Key Features

  • Processor: One AMD EPYC processor, either 5th Gen 9005 (“Turin”) or 4th Gen 9004 (“Genoa”). Supports processors up to 160 cores, core speeds of up to 4.1 GHz, and TDP ratings of up to 400W. Supports PCIe 5.0 for high performance I/O.
  • Memory: 12 DIMM slots. The processor has 12 memory channels, with 1 DIMM per channel (DPC). Lenovo TruDDR5 RDIMMs, 3DS RDIMMs, and 9×4 RDIMMs are supported. Memory speeds up to 6400 MHz with 5th Gen AMD EPYC processors.
  • Maximum memory: Up to 3TB with 12x 256GB 3DS RDIMMs
  • Storage: Up to 12x 2.5-inch hot-swap drive bays: / Front bays can be one of the following: / 4x 2.5-inch hot-swap SAS/SATA or NVMe …
  • Maximum internal storage: 2.5-inch drives: / 368.64TB using 12x 30.72TB 2.5-inch SAS SSDs / 92.16TB using 12x 7.68TB 2.5-inch SATA SSDs …
  • Expansion: Up to 5x PCIe slots: / Rear: Up to 3x PCIe slots plus a slot dedicated to an OCP adapter. Slot availability is based on riser selection and rear drive bay selection. / Front: Two PCIe slots plus a slot dedicated to an OCP adapter. Front OCP slot is mutually exclusive with rear OCP slot. …
  • GPU support: Supports up to 5x single-wide GPUs
  • Networking: Dedicated OCP 3.0 SFF slot with PCIe 5.0 x16 host interface, either at the rear of the server (rear-accessible) or the front of the server (front-accessible). Supports a variety of 2-port and 4-port adapters with 1GbE, 10GbE and 25GbE network connectivity. One port can optionally be shared with the …
  • Cooling and power: Up to 7x N+1 redundant hot swap 40 mm fans, configuration dependent. One fan integrated in each power supply. For high-performance CPUs, the SR635 V3 also offers a closed-loop liquid-cooled heatsink design to more effectively remove heat from the processors. For customers with water infrastructure …
  • Management and security: Operator panel with status LEDs. Optional External Diagnostics Handset with LCD display. Models with 8x 2.5-inch front drive bays can optionally support an Integrated Diagnostics Panel. XClarity Controller 2 (XCC2) embedded management based on the ASPEED AST2600 baseboard management controller …
  • Physical: Width: 440 mm (17.3 in.), height: 43 mm (1.7 in.), depth: 773 mm (30.4 in.). See Physical and electrical specifications for details. Maximum: 20.2 kg (44.6 lb)

Applications

  • Enterprise virtualization and private cloud
  • Databases and business-critical applications
  • AI inference and high-performance computing
  • Software-defined storage and data analytics

Configuration, availability and lead time depend on the required quantity, chassis and CPU platform, and delivery destination. Send your requirement to receive a quotation.

Scroll to Top