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Lenovo ThinkSystem SD650 V3

CurrentServersdense node
Lenovo ThinkSystem SD650 V3dense node2 × SFF 2.5" bays

The Lenovo ThinkSystem SD650 V3 is an advanced direct liquid-cooled dual-socket compute tray built for 4th and 5th Gen Intel Xeon Scalable processors. Designed for supercomputers and hyperscale scientific modeling, Lenovo Neptune warm water cooling extracts up to 98% of heat from the node, allowing sustained peak Turbo frequencies across high-core CPUs.

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Specifications

BrandLenovo
FamilyThinkSystem SD
Form factordense node
ReleasedJan 2023
ProcessorUp to 2x 4th or 5th Gen Intel Xeon Scalable processors up to 64 cores each (up to 385W TDP)
Memory16x DDR5 DIMM slots (8 per CPU) supporting up to 2TB DDR5-5600 ECC RDIMM
Drive baysUp to 2x 2.5-inch 7mm NVMe SSDs or 2x internal M.2 boot SSDs
Expansion slotsUp to 2x PCIe 5.0 x16 slots supporting 400Gb/s NDR InfiniBand / 400GbE fabric cards
NetworkMezzanine and PCIe slots for high-speed InfiniBand NDR and RoCE adapters
Power supplyShared bus-bar power delivery through the ThinkSystem DW612 Enclosure
ManagementLenovo XClarity Controller 2 (XCC2)

Generations

Compatible parts

SSDs

Works together

How the Lenovo ThinkSystem SD650 V3 connects to servers, storage and the network: 4 ways, with the parts and products on each path.

Fibre Channel SANiSCSI and NVMe/TCP over EthernetDirect-attached SASFile storage (NFS and SMB)

Fibre Channel SAN

Match the speed: 16Gb and 32Gb FC HBAs, switches and array ports work together, and each generation also runs one or two speeds below its own (a 32Gb port runs at 16Gb and 8Gb).

Adapters for the server (check the fit list)

Switches

Storage

Optics

Fibre Channel SAN: how it fits together

iSCSI and NVMe/TCP over Ethernet

Keep the speed the same at all three points: a 25GbE server, a 25GbE switch port and a 25GbE array port. Mixed speeds work but the slowest link sets the pace.

Adapters for the server (check the fit list)

Switches

Storage

Optics

iSCSI and NVMe/TCP over Ethernet: how it fits together

Direct-attached SAS

12Gb SAS uses Mini-SAS HD (SFF-8644) connectors; older 6Gb gear uses Mini-SAS (SFF-8088). Adapter cables exist, but the link runs at the slower speed.

Adapters for the server (check the fit list)

Storage

Direct-attached SAS: how it fits together

File storage (NFS and SMB)

Front-end ports face the clients; back-end ports (on scale-out systems) connect the nodes to each other and need their own switch pair.

Adapters for the server (check the fit list)

Switches

Storage

Optics

File storage (NFS and SMB): how it fits together

Plan and size it

Check compatibility with Lenovo

Before you buy, confirm the exact configuration against the vendor's own lists: firmware levels, operating systems, adapters and optics that Lenovo has tested with the Lenovo ThinkSystem SD650 V3.

Equivalent models from other brands

FAQ

What is the Lenovo Neptune cooling efficiency on the SD650 V3?

Lenovo Neptune liquid cooling removes up to 98% of the server heat directly into the facility water loop.

What enclosure hosts the SD650 V3 compute trays?

It installs into the ThinkSystem DW612 Enclosure, which accommodates up to six SD650 V3 trays in 6U of rack space.

Buying or selling ThinkSystem SD650 V3?

New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.

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Sources