| Product SKU | SR650a V4 |
|---|---|
| Form Factor | 2U rack |
| Processor | One or two Intel Xeon 6700P-series or 6500P-series processors (formerly codenamed "Granite Rapids"). Supports processors up to 86 cores and 172 threads, core speeds of up to 4.0 GHz, and TDP ratings of up to 350 W. |
| GPU Support | Support for up to 4x double-wide GPUs or 8x single-wide GPUs, installed in the front slots |
| Memory | 32 DIMM slots with two processors (16 DIMM slots per processor). Each processor has 8 memory channels, with 2 DIMMs per channel (DPC). Lenovo TruDDR5 RDIMMs and MRDIMMs are supported. RDIMMs operate at up to 6400 MHz at 1 DPC and up to 5200 MHz at 2 DPC. MRDIMMs are supported up to 8000 MHz at 1 DPC (no support for 2 DPC). |
| Drive Bays | Up to 8x 2.5-inch or 8x E3.S hot-swap drive bays, all front accessible |
| Expansion Slots | Up to 8x slots at the front for GPUs, up to 6x slots at the rear, plus 2x OCP slots. All slots are PCIe 5.0. The use of Riser 3 and 6 requires 2 processors. |
| Chipset | None. Integrated into the processor |
| Maximum Memory | Up to 8TB by using 32x 256GB 3DS RDIMMs |
| Memory Protection | ECC, SDDC (for x4-based memory DIMMs), ADDDC (for x4-based memory DIMMs), and memory mirroring. |
| Maximum Internal Storage | • 2.5-inch drives: |
| Storage Controller | • Onboard NVMe ports with optional RAID support using Intel VROC |
| Network | Two dedicated OCP 3.0 SFF slots with a PCIe 5.0 host interface, either x8 or x16. Support a variety of 2-port and 4-port adapters with up to 400 GbE network connectivity. One port of each installed OCP adapter can optionally be shared with the XClarity Controller (XCC) management processor for Wake-on-LAN and NC-SI support. |
| Ports | Front: External diagnostics port, optional 2x USB 3 (5 Gb/s) port, one supports XCC local management, optional Mini DisplayPort (miniDP) v1.1a video port. |
| Cooling | 6x (with two processors installed) or 5x (with one processor installed) single-rotor or dual-rotor hot swap 60 mm fans, configuration dependent. Fans are N+1 redundant, tolerating a single-rotor failure. One fan integrated in each power supply. For customers with water infrastructure in their data center, the server also supports 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. 800W, 1300W, 2000W, 2700W and 3200W AC options. All AC power supplies support 230V power; some also support 115V input supply. In China only, all power supply options support 240 V DC. Support for HVDC and -48V DC power supply options. |
| System Management | Operator panel with status LEDs. Optional External Diagnostics Handset with LCD display. Clarity Controller 3 (XCC3) embedded management based on the ASPEED AST2600 baseboard management controller (BMC) and OpenBMC, XClarity One centralized infrastructure delivery, XClarity Integrator plugins, and XClarity Energy Manager centralized server power management. Optional XCC3 Premier 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). |
| Operating System | Microsoft Windows Server, Red Hat Enterprise Linux, SUSE Linux Enterprise Server, VMware ESXi, Ubuntu Server. |
| Warranty | Three-year or one-year (model dependent) customer-replaceable unit and onsite limited warranty with 9×5 next business day (NBD). |
| Dimensions (H x W x D) | Width: 445 mm (17.5 in.), height: 87 mm (3.4 in.), depth: 924 mm (36.4 in.). See Physical and electrical specifications for details. |
| Weight | Maximum weight: 38.8 kg (85.5 lb) |
Lenovo ThinkSystem SR650a V4
The Lenovo ThinkSystem SR650a V4 is a 2U rack server from Lenovo, powered by Intel Xeon 6700P-series or 6500P-series processors, with up to 8x 2.5-inch or 8x E3.S hot-swap drive bays, all front accessible.
Overview
The Lenovo ThinkSystem SR650a V4 is a 2U rack server from Lenovo, powered by Intel Xeon 6700P-series or 6500P-series processors.
It supports 32 DIMM slots with two processors. Maximum memory reaches up to 8TB by using 32x 256GB 3DS RDIMMs. Storage is provided by up to 8x 2.5-inch or 8x E3.S hot-swap drive bays, all front accessible. Expansion is provided by up to 8x slots at the front for GPUs, up to 6x slots at the rear, plus 2x OCP slots. All slots are PCIe 5.0. The use of Riser 3. Networking is provided by Two dedicated OCP 3.0 SFF slots with a PCIe 5.0 host interface, either x8 or x16. Support a variety of 2-port and 4-port adapters with up.
Key Features
- Processor: One or two Intel Xeon 6700P-series or 6500P-series processors (formerly codenamed “Granite Rapids”). Supports processors up to 86 cores and 172 threads, core speeds of up to 4.0 GHz, and TDP ratings of up to 350 W.
- Memory: 32 DIMM slots with two processors (16 DIMM slots per processor). Each processor has 8 memory channels, with 2 DIMMs per channel (DPC). Lenovo TruDDR5 RDIMMs and MRDIMMs are supported. RDIMMs operate at up to 6400 MHz at 1 DPC and up to 5200 MHz at 2 DPC. MRDIMMs are supported up to 8000 MHz at 1 …
- Maximum memory: Up to 8TB by using 32x 256GB 3DS RDIMMs
- Storage: Up to 8x 2.5-inch or 8x E3.S hot-swap drive bays, all front accessible / 2.5-inch drives can be SAS, SATA, or NVMe / E3.S drives are NVMe …
- Maximum internal storage: 2.5-inch drives: / 245.76TB using 8x 30.72TB 2.5-inch SAS SSDs / 61.44TB using 8x 7.68TB 2.5-inch SATA SSDs …
- Expansion: Up to 8x slots at the front for GPUs, up to 6x slots at the rear, plus 2x OCP slots. All slots are PCIe 5.0. The use of Riser 3 and 6 requires 2 processors. / Riser 2 (Rear): 3x full-height slots, two x16 and one x8 (CPU 1) / Riser 3 (Rear): 3x full-height slots, two x16 and one x8 (CPU 2) …
- GPU support: Support for up to 4x double-wide GPUs or 8x single-wide GPUs, installed in the front slots
- Networking: Two dedicated OCP 3.0 SFF slots with a PCIe 5.0 host interface, either x8 or x16. Support a variety of 2-port and 4-port adapters with up to 400 GbE network connectivity. One port of each installed OCP adapter can optionally be shared with the XClarity Controller (XCC) management processor for …
- Cooling and power: 6x (with two processors installed) or 5x (with one processor installed) single-rotor or dual-rotor hot swap 60 mm fans, configuration dependent. Fans are N+1 redundant, tolerating a single-rotor failure. One fan integrated in each power supply. For customers with water infrastructure in their data …
- Management and security: Operator panel with status LEDs. Optional External Diagnostics Handset with LCD display. Clarity Controller 3 (XCC3) embedded management based on the ASPEED AST2600 baseboard management controller (BMC) and OpenBMC, XClarity One centralized infrastructure delivery, XClarity Integrator plugins, and …
- Physical: Width: 445 mm (17.5 in.), height: 87 mm (3.4 in.), depth: 924 mm (36.4 in.). See Physical and electrical specifications for details. Maximum weight: 38.8 kg (85.5 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.









