Lenovo ThinkSystem SR680a V3Specifications, configurations & comparisons

Eight NVIDIA B200 SXM6 GPUs, delivered as one HGX B200 8-GPU board; Lenovo lists that board as the only GPU option, at a maximum of one per server. Each GPU has 180 GB of HBM3e and a 1000 W rating, so the board carries 1,440 GB of GPU memory. Lenovo’s SR680a V4 guide shows H200 and H100 versions of the SR680a V3 as well, but this page covers the B200 model.

Air-cooled. Nineteen hot-swap system fans — 15 at the rear for the GPUs, drive bays and PCIe switches, two at the front for the CPU shuttle and two auxiliary — plus a fan in each supply move up to 1835 CFM front to back. For water cooling with B200 GPUs, Lenovo offers the 5U SR780a V3, which runs separate water loops for its CPUs, GPUs and NVLink switches.

Eight 3200 W Titanium hot-swap supplies, all fitted as standard, identical and running N+N. Each has a C19 inlet, needs 200–240 V AC (there is no 110 V support) and draws up to 16 A at 200 V. Lenovo’s guide gives no maximum system power figure and refers planners to its Capacity Planner tool.

Four terabytes, using 128 GB RDIMMs in all 32 slots. With two DIMMs per channel the memory runs at up to 4400 MHz; sixteen DIMMs, one per channel, run at up to 5600 MHz and give up to 2 TB. Lenovo lists only 64 GB, 96 GB and 128 GB modules for this server.

Two 5th Gen Intel Xeon Platinum processors from six CTO-only choices: the 8558, 8558P, 8568Y+, 8570, 8592+ and 8592V, spanning 48 to 64 cores at 330 W or 350 W. A single-processor configuration is not supported. The 330 W 8558 and 8592V run memory at 5200 MHz and 4800 MHz respectively; the others run at 5600 MHz.

The eight lower front slots are PCIe 5.0 x16 and connect to both the processors and the GPUs through PCIe switching, which gives each adapter GPU Direct paths. They take one to eight identical adapters, from 100 Gb Ethernet up to 400 Gb/s NDR InfiniBand. Two upper slots carry BlueField-3 or ConnectX-7 cards for the user/control plane, or a management NIC, and there is no OCP slot.

Sixteen 2.5-inch hot-swap NVMe bays on two 8-bay backplanes, both mandatory, each drive on a PCIe 5.0 x4 link. They run as JBOD with no RAID, and Lenovo quotes a 245.76 TB maximum with 15.36 TB drives. One or two M.2 NVMe boot drives sit inside, with optional VROC RAID 1.

It is 8U, 447 mm wide, 351 mm high and 943 mm deep, and weighs up to 116 kg. It rests on a static L-shaped shelf rail with no slide or cable arm, Lenovo supports at most five per 42U or 48U cabinet, and one-person servicing requires a material lift such as the Genie Lift GL-8 that Lenovo offers.

According to Lenovo’s comparison table, the V4 keeps the 8U chassis and 4 TB memory ceiling but moves to Xeon 6700-series processors with up to 86 cores, DDR5 at 6400 MHz and HGX B300 GPUs. It replaces the eight GPU Direct slots with eight OSFP ports on integrated ConnectX-8 switches, adds an OCP slot, halves the drive bays to eight, moves M.2 to front hot-swap bays and adds a 3800 W HVAC/HVDC supply option.

Lenovo’s product guide still lists the CTO base model and its supported options, cites benchmark results current as of 1 September 2026, and gives no end-of-marketing or end-of-service date. Warranty is three years; note that GPU-related onsite requests are handled on a commercially reasonable basis rather than to service-level targets. Any retirement dates Lenovo announces later will be added to our server end-of-life checker.