Lenovo ThinkSystem SR650 V4

Lenovo's 2-socket 2U rack server (machine types 7DGC/7DGD, plus 7DK2 with Compute Complex Neptune Core liquid cooling) for Intel Xeon 6 P-core "Granite Rapids" 6700/6500-series processors up to 86 cores and 350 W, with 32 DDR5 DIMM slots (up to 8 TB, RDIMM or MRDIMM), up to 40 x 2.5", 16 x 3.5" or 32 x E3.S drives, up to 10 PCIe 5.0 slots plus 2 OCP 3.0 slots, and up to 10 single-wide or 2 double-wide GPUs. A general-purpose workhorse for virtualization, databases and storage-heavy work.

Memory

Slots: 32 DIMM (16 per CPU, 2 DIMMs per channel, 8 channels per CPU); 16 DIMM slots active with one CPU, or with Compute Complex Neptune Core (7DK2, both CPUs)
Max: 8 TB (32 x 256 GB 3DS RDIMM, 2 CPUs)
Types: Lenovo TruDDR5 RDIMM, 3DS RDIMM, MRDIMM
Speed: RDIMM up to 6400 MT/s at 1 DPC, 5200 MT/s at 2 DPC; MRDIMM up to 8000 MT/s at 1 DPC (no 2 DPC support), CPU-dependent
CXL: CXL 2.0 memory supported, up to 12 DIMMs (6 per CPU) in E3.S 2T drive bays; up to 6 with one CPU
Protection: ECC, SDDC and ADDDC (x4 DIMMs), memory mirroring

Storage

Front: 8, 12 or 16 x 3.5" hot-swap, or 8, 16 or 24 x 2.5" hot-swap, or 32 x E3.S hot-swap (SAS/SATA/AnyBay/NVMe combinations)
Mid-chassis: Up to 8 x 2.5" simple-swap
Rear: 4 x 3.5" or 4/8 x 2.5" hot-swap
M.2: 2 x front or rear hot-swap M.2 with RAID 1, or an internal M.2 module for 2 drives with optional RAID 1
Onboard: 36 onboard NVMe ports; NVMe RAID via Intel VROC or a Tri-Mode RAID adapter
RAID / HBA: RAID 940-8i/16i (4/8 GB flash, Tri-Mode NVMe, PCIe Gen4 12 Gb); 8/16/32-port RAID adapters up to 8 GB flash; non-RAID 12 Gb SAS/SATA HBA, PCIe 3.0/4.0; CFF (cabled) form factor available so RAID/HBA doesn't consume a rear PCIe slot
Max capacity: 2,211.84 TB (36 x 61.44 TB 2.5" NVMe SSD); 1,228.8 TB (40 x 30.72 TB SAS SSD); 384 TB (16 x 24 TB 3.5" SAS/SATA HDD); 1,966.08 TB (32 x 61.44 TB E3.S NVMe)
Optical / tape: No internal optical or tape drive bays

Graphics

Onboard: Embedded 2D graphics in XClarity Controller 3, 16 MB, max 1920x1200 32bpp at 60 Hz; rear VGA plus optional front Mini DisplayPort, usable simultaneously
Single-wide GPU: Up to 10 x NVIDIA L4 24 GB PCIe Gen4 passive (Controlled export status), low-profile, no aux power
Double-wide GPU: Up to 2 x NVIDIA L40S 48 GB PCIe Gen4 passive (Controlled) or NVIDIA RTX 4500 Ada 24 GB PCIe active, full-height full-length, aux power required
Rules: All installed GPUs must be identical; a double-wide GPU in slot 4 or 7 disables the adjacent slot 3 or 6; mid and rear drive bays not supported with GPUs; GPUs not supported with Compute Complex Neptune Core (7DK2)

Expansion

Riser 1: 2 x low-profile x8 or x16 (CPU 1)
Riser 2: 3 x full-height, two x16 and one x8 (CPU 1)
Riser 3: 3 x full-height, two x16 and one x8 (CPU 2); requires 2 processors
Riser 4: 2 x low-profile x8 or x16 (CPU 2); requires 2 processors
OCP 3.0: 2 x dedicated OCP 3.0 SFF slots, PCIe 5.0 x8 or x16; one port per adapter can be shared with XCC for Wake-on-LAN/NC-SI
Notes: All rear slots are PCIe 5.0; up to 10 rear slots total; rear 2.5"/3.5" drive bays and hot-swap M.2 can replace some slots; 8 x 2.5" rear drive bays makes Riser 1 full-height
CFF: Dedicated cabled (CFF) bay for a RAID/HBA adapter that does not use a rear PCIe slot (2.5" front configurations only)

Networking

OCP 3.0 adapters: 2-port and 4-port options up to 400 GbE, including Intel E810-DA2 10/25GbE SFP28, NVIDIA ConnectX-7 10/25GbE, ConnectX-7 NDR200/200GbE and NDR400, ConnectX-8 8240 400GbE / 8180 XDR (aux cable required)
Management: 1 x dedicated 1GbE RJ-45 XCC port; optional adapter to share one remote-management network connection across 4 servers

Power

PSU options: 800 W, 1300 W, 2000 W, 2700 W and 3200 W (80 PLUS Platinum or Titanium); most support 230 V, some also 115 V; HVDC and -48 V DC options; 240 V DC in China only
Redundancy: Up to 2 hot-swap redundant PSUs; one fan integrated in each PSU
Cooling: 6 fans (2 CPUs) or 5 fans (1 CPU), single- or dual-rotor 60 mm, N+1 redundant; optional open-loop liquid cooling (Processor Neptune Core or Compute Complex Neptune Core)

Ports

Front: External diagnostics port, optional 2 x USB 3 (5 Gb/s, one for XCC local management), optional Mini DisplayPort v1.1a
Rear: 2 x USB 3 (5 Gb/s), 1 x VGA, 1 x RJ-45 1 GbE XCC management port; optional DB-9 serial port (in a slot); optional shared remote-management adapter (OCP slot)
Internal: Optional 1 x USB 3 (5 Gb/s) for OS/license key purposes

Physical

Form factor: 2U rack
Dimensions: 445 mm W x 87 mm H x 796 mm D (17.5 x 3.4 x 31.3 in), excluding EIA flanges, bezel and PSU handles
Detailed depth: 723 mm to rearmost I/O port; 761 mm to rearmost chassis feature / PSU handle
Weight: 38.8 kg (85.5 lb) maximum
Machine types: 7DGD (3-year warranty), 7DGC (1-year warranty), 7DK2 (3-year, Compute Complex Neptune Core), 7DLN (SAP HANA / vSAN)
Environment: ASHRAE class support depends on configuration; see Lenovo's published thermal rules

Management

BMC: XClarity Controller 3 (XCC3, ASPEED AST2600) with OpenBMC; optional XCC3 Premier adds remote control features
Local: Operator panel with status LEDs; optional External Diagnostics Handset with LCD
Tools: XClarity One, XClarity Integrator plugins, XClarity Energy Manager
Security: Chassis intrusion switch, power-on and administrator passwords, Root of Trust module with TPM 2.0 and Platform Firmware Resiliency (PFR); optional lockable front security bezel
Warranty: 3-year (7DGD) or 1-year (7DGC) customer-replaceable-unit and onsite limited warranty, 9x5 next business day; optional service upgrades

Operating systems

Windows: Windows Server
Red Hat: RHEL 9.4-9.8, 10.0-10.2
SUSE: SLES 15 SP6, SP7, SLES 16
Ubuntu: 22.04 LTS, 24.04 LTS, 26.04 LTS
VMware: ESXi 8.0 U3, 9.0, 9.1

Processors

Intel Xeon 6503P
Intel Xeon 6505P
Intel Xeon 6507P
Intel Xeon 6511P
Intel Xeon 6515P
Intel Xeon 6517P
Intel Xeon 6520P
Intel Xeon 6521P
Intel Xeon 6527P
Intel Xeon 6530P
Intel Xeon 6714P
Intel Xeon 6724P
Intel Xeon 6725P
Intel Xeon 6730P
Intel Xeon 6731P
Intel Xeon 6732P
Intel Xeon 6736P
Intel Xeon 6737P
Intel Xeon 6740P
Intel Xeon 6741P
Intel Xeon 6745P
Intel Xeon 6747P
Intel Xeon 6760P
Intel Xeon 6761P
Intel Xeon 6767P
Intel Xeon 6781P
Intel Xeon 6787P