- CTO base part number
- 7D96CTO1WW
- Ordering-code scope
- Machine Type/Model General purpose
- Documented ordering description
- ThinkSystem SR850 V3-3yr Warranty
- Platform in this guide
- ThinkSystem SR850 V3
- Form factor
- 2U rack
- Processor
- Two or four 4th Gen Intel Xeon Scalable processors, either Gold or Platinum level processors (formerly codename "Sapphire Rapids" or SPR). Supports processors up to 60 cores, core speeds up to 3.7 GHz, and TDP ratings up to 350W. Three Intel Ultra Path Interconnect (UPI) links at 16 GT/s each. Four processors are connected in a mesh topology. Support for Intel embedded accelerators: QAT, DLB, IAA, and DSA.
- Memory
- Up to 64 DIMM slots (16 DIMMs per processor). Each processor has 8 memory channels, with 2 DIMMs per channel. Lenovo TruDDR5 RDIMMs and 3DS RDIMMs are supported. DIMM slots are shared between standard system memory and persistent memory. DIMMs operate at up to 4800 MHz at 1 DPC and 4400 MHz at 2 DPC.
- Memory protection
- ECC, SDDC (for 10x4-based memory DIMMs), ADDDC (for 10x4-based memory DIMMs), memory mirroring.
- Disk drive bays
- Up to 24x 2.5-inch hot-swap drive bays: Up to 24x SAS/SATA drive bays Up to 24x AnyBay drive bays (support SAS, SATA, Gen4 NVMe, or Gen5 NVMe drives) Optional two 7mm hot-swap SSD drive bays at the rear of the server, either SATA or NVMe, for OS boot or storage
- Network interfaces
- Two dedicated OCP 3.0 SFF slots with PCIe 5.0 x16 host interface. Supports a variety of 2-port and 4-port adapters with network connectivity up to 100 GbE. One port can optionally be shared with the XClarity Controller (XCC) management processor for Wake-on-LAN and NC-SI support.
- PCI Expansion slots
- Up to 12 PCIe slots, depending on the configuration, plus two Gen5 OCP 3.0 slots. Slot combinations are based on the risers selected: With Full height & Low Profile slots: Gen 4 only: 9x Gen4 Gen 5/Gen 4 slots: 6x Gen5 + 1x Gen4 Low Profile only slots: Gen 4 only : 12x Gen4 slots Gen 5/Gen 4 slots: 8x Gen5 + 4x Gen4 See the I/O expansion section for details.
- GPU support
- Supports up to 4x single-wide GPUs or up to 2x double-wide GPUs
- Cooling
- 6x N+1 redundant hot-swap 60 mm fans (all 6 standard). One additional fan integrated in each of the two power supplies.
- Power supply
- Two hot-swap redundant AC power supplies (80 PLUS Platinum or Titanium certification): 1100W to 2600W options, supporting 220 V AC. 1100 W options also support 110V input supply. For China only, supports 1300 W and 2600 W 240V AC/DC Platinum CRPS, or 1600 W 336V DC or -48V DC CRPS. Power supplies can be configured as N+N redundant.
- Systems management
- Operator panel with status LEDs. Optional External Diagnostics Handset with LCD display. Models with 16x 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. XClarity One for centralized infrastructure management, XClarity Integrator plugins, and XClarity Energy Manager centralized server power management. XCC2 Platinum is included which enables remote control functions and other features.
- Dimensions
- Width: 447 mm (17.6 in.), height: 87 mm (3.4 in.), depth: 902 mm (35.5 in.). See Physical and electrical specifications for details.
- Weight
- Maximum: 36.7 kg (80.9 lb)
- Selection qualification
- CTO is a configuration base code, not a fixed installed BOM. Platform limits do not mean simultaneously installed CPU, RAM, drives or GPUs. Verify machine type, CPU count, memory, backplane, cooling and power. AI/HPC denotes an ordering scope, not included accelerators. Confirm local warranty and supply separately.
Specification schematic, not a product photograph or installation drawing.
Specification schematic, not a product photograph or installation drawing.
Specification schematic, not a product photograph or installation drawing.
Specification schematic, not a product photograph or installation drawing.