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Node specifications

A summary of the features and specifications of the compute node and the GPU node.

Compute node specifications​

Note

The SD650 V2 tray contains two compute nodes while the SD650-N V2 tray contains one compute node and one GPU node.

Table 1. Compute node specifications
SpecificationDescription
Processor (depending on the model)
  • Supports two 3rd Gen Intel® Xeon® Scalable processors per node.
Note
  1. Use the Setup utility to determine the type and speed of the processors in the node.
  2. For a list of supported processors, see Lenovo ServerProven website.

  3. If the Intel® Xeon® Platinum 8368Q processor is installed, the supported water temperature is 2°C - 35°C (35.6°F - 95°F).

Memory

See Memory module installation rules and order for detailed information about memory configuration and setup.

  • Slots: 16 DIMM slots per node

  • Type:
    • PC4-25600 (dual-rank), 3200 MT/s, error correcting code (ECC), double-data-rate 4 (DDR4) registered DIMM (RDIMM)
  • Supports (depending on the model):

    • SD650 V2 compute node:

      • 2Rx4 32 GB and 64 GB size RDIMMs

      • 2Rx8 16 GB size RDIMMs

    • SD650-N V2 compute node:

      • 2Rx4 32 GB and 64 GB size RDIMMs

  • Minimum:

    • SD650 V2 compute node: 256 GB per node

    • SD650-N V2 compute node: 512 GB per node

  • Maximum: 2048 GB per node

Important

The tray only supports fully populated processor and memory configuration (2 processors and 16 DIMMs).

Drive bays

  • Supports up to two 2.5-inch 7mm simple-swap Serial ATA (SATA)/Non-Volatile Memory express (NVMe) solid-state drives per node.

  • Supports up to one 2.5-inch 15mm simple-swap Serial ATA (SATA)/Non-Volatile Memory express (NVMe) solid-state drive per node.

Attention
As a general consideration, do not mix standard 512-byte and advanced 4-KB format drives in the same RAID array because it might lead to potential performance issues.
M.2 drive/backplaneThinkSystem M.2 backplane supports up to two identical M.2 drives.
Supports 2 different physical sizes of M.2 drives:

  • 42 mm (2242)

  • 80 mm (2280)

See Install an M.2 drive into the M.2 backplane for supported M.2 drive configurations.

RAID
  • Software RAID level 0 and 1 for SATA storage
  • Integrated on-board Hardware RAID level 1
  • Intel VROC NVMe RAID Premium level 0 and 1
Expansion slotsSupports up to two Half-Height Half-Length x16 Gen 4 PCIe slots.
Video controller (integrated into Lenovo XClarity Controller)
  • ASPEED
  • SVGA compatible video controller
  • Avocent Digital Video Compression
  • Video memory is not expandable
Note
Maximum video resolution is 1920 x 1200 at 60 Hz.
Input/Output (I/O) features

  • Front operator panel

  • KVM breakout cable connector

  • External LCD diagnostics handset connector

  • One 1 Gb RJ45 Ethernet port with share-NIC feature for Lenovo XClarity Controller access

  • One 25 Gb SFP28 Ethernet port with share-NIC feature for Lenovo XClarity Controller access
Minimum configuration for debugging

  • One DW612 Enclosure

  • One SD650 V2 tray (contains two nodes)

  • Two processors on a specific node

  • 16 DIMMs on a specific node

  • Six CFF v4 power supplies (any type)

  • One disk (any type) (If OS is needed for debugging)

GPU node specifications​

Note
The SD650-N V2 tray contains one compute node and one GPU node.
Table 2. GPU node specifications
SpecificationDescription
GPU

  • NVIDIA HGX A100 four GPU board

  • NVIDIA HGX A800 four GPU board

Expansion slotsSupports one Half-Height Half-Length x16 Gen 4 PCIe slot.
Minimum configuration for debugging

  • One DW612 Enclosure

  • One SD650-N V2 tray

  • Two processors on a right node

  • 16 DIMMs on a right node

  • Six units of ThinkSystem 2400W (230V) v4 Platinum hot-swap power supply Delta

  • One disk (any type) (If OS is needed for debugging)