Lenovo ThinkSystem SR675 V3 — HGX H200 4-GPU SXM5 (Neptune)
NVLink-connected SXM5 H200s with Neptune liquid-to-air cooling, no plumbing.
We help you choose, configure, and deliver the right system — no obligation.
Configuration at a Glance
Tailored per engagement. Full technical overview below.
Configuration Options
Core specifications for this system. Every component is configurable to your workload — request a quote for a tailored build.
NVIDIA HGX H200 4-GPU SXM5 (700W each)
2x AMD EPYC 9005 'Turin'
Up to 3TB DDR5-6400 (24 DIMM slots)
4x 2.5-inch or 4x EDSFF E3.S NVMe SSD
Overview
This ThinkSystem SR675 V3 carries the NVIDIA HGX H200 4-GPU SXM5 complex with NVLink and Lenovo Neptune hybrid liquid-to-air cooling for peak GPU-to-GPU bandwidth at 700W per GPU. Nexus Compute configures, tests, and delivers the system through Lenovo-authorized channels with Lenovo warranty and XClarity management.
Who This Solution Is For
Business Benefits
Full NVLink bandwidth
The HGX SXM5 complex links four H200s at up to 900GB/s for tightly-coupled model parallelism.
Liquid efficiency, no plumbing
Neptune's closed-loop liquid-to-air design cuts power and noise without facility water connections.
Sustained peak clocks
Liquid-assisted cooling holds 700W GPUs at full performance under continuous load.
Typical Business Use Cases
Model-parallel large model training
Tightly-coupled multi-GPU fine-tuning
High-bandwidth scientific computing
Latency-sensitive distributed AI
Industry Applications
Technical Overview
The SR675 V3 SXM5 model integrates the NVIDIA HGX H200 4-GPU baseboard with NVLink and Lenovo Neptune liquid-to-air cooling in a 3U chassis driven by dual AMD EPYC 9005 processors. A closed-loop heat exchanger delivers liquid-cooling density and acoustics while connecting only to standard air-cooled racks.
| GPU / Accelerator | NVIDIA HGX H200 4-GPU SXM5 (700W each) |
| GPU Interconnect | NVLink up to 900GB/s GPU-to-GPU |
| CPU | 2x AMD EPYC 9005 'Turin' |
| Memory | Up to 3TB DDR5-6400 (24 DIMM slots) |
| Storage | 4x 2.5-inch or 4x EDSFF E3.S NVMe SSD |
| Cooling | Lenovo Neptune liquid-to-air (L2A) hybrid |
| Form Factor | 3U rackmount |
| Management | Lenovo XClarity Controller 2 (XCC2 Platinum) |
| Warranty | Lenovo warranty (configurable terms) |
Specifications are indicative and configured to each engagement. Request a quote for a configuration tailored to your requirements.
Warranty, Support & Fulfillment
Every system ships from an authorized channel, configured and tested, with the documentation enterprise buyers need — backed by warranty and a dedicated account team.
Enterprise Warranty
Full manufacturer warranty with optional on-site, next-business-day support and extended coverage.
Authorized Channel
Sourced through Tier-1 distribution and OEM partners — never grey market. Asset & warranty records included.
Lead Time & Deployment
48-hour quotes, then configured, burn-in tested, and delivered on a committed schedule.
Nationwide Fulfillment
Coordinated logistics, rack-and-stack, and delivery wherever your infrastructure lives.
Frequently Asked Questions
Do we need facility water for Neptune liquid-to-air?
No. The L2A design uses a closed-loop heat exchanger that rejects heat to air, so it installs in standard air-cooled racks while delivering liquid-cooling density. We confirm rack and airflow requirements.
When should we choose SXM5 HGX over PCIe GPUs?
Choose SXM5 when your workload is bandwidth-bound across GPUs — large model-parallel training benefits most from full NVLink. We map the choice to your parallelism strategy.
Is four SXM5 GPUs enough for serious training?
For many models a four-way NVLink node is highly capable and scales out over InfiniBand. We size single-node versus multi-node against your targets.
Hardware Assistance
Configure the Lenovo ThinkSystem SR675 V3 — HGX H200 4-GPU SXM5 (Neptune) with Nexus Compute
Tell us your requirements and a hardware specialist will help you specify, configure, and quote the right system — typically within two business days. No obligation.