Nvidia

Liquid Cooled Rack-Scale Solution: 72 NVIDIA B200, 36 Grace

RackmountNTS offers a liquid-cooled, rack-scale platform with 72 NVIDIA B200 GPUs and 36 Grace CPUs. It is built for AI training, inference, and HPC. These workloads need dense GPU compute in one integrated rack.

Liquid cooling keeps thermals stable under sustained load. That helps data centers run high-power GPU clusters with steady performance. It can also extend hardware life.

Overview of the Rack-Scale Platform

This solution pairs NVIDIA Blackwell GPU compute with Grace CPU capacity. It targets teams that need high parallelism for large models, simulation, and analytics.

Core elements include:

  • 72 NVIDIA B200 GPUs for large-scale parallel processing
  • 36 Grace CPUs for host-side compute and coordination
  • Direct liquid cooling for dense thermal management
  • Flexible storage and expansion for enterprise data sets

The design fits AI factories and HPC sites. It scales compute without spreading jobs across many disconnected racks.

Key Hardware: GPUs and Grace CPUs

The 72 B200 GPUs provide the main compute for AI and HPC. They suit training, fine-tuning, and high-throughput inference when models and batches are large.

The 36 Grace CPUs support orchestration and data prep. They also help workloads that need fast host compute next to the GPU complex. Together, GPUs and CPUs form a balanced rack for data-heavy jobs.

Hardware highlights:

  • High GPU count for dense compute in one rack
  • Grace CPUs aligned with NVIDIA accelerated platforms
  • Design aimed at large-model and scientific workflows

Teams building mixed clusters can pair this rack with other NTS GPU server nodes.

Liquid Cooling and Thermal Management

Air alone struggles when many high-TDP GPUs run at full load. Liquid cooling removes heat closer to the source. That supports quieter, more stable operation.

Benefits of liquid cooling in this platform include:

  • Better heat removal under sustained AI training loads
  • Lower reliance on high-speed fan arrays
  • More consistent GPU clocks with less thermal throttling
  • Improved component life in dense layouts

NVIDIA Blackwell NVL72 rack-scale platform with B200 GPUs and liquid cooling

Good thermal design matters as rack power climbs. Liquid cooling helps operators use facility power more productively.

Storage, Memory, and Expansion

AI and HPC jobs create large datasets, checkpoints, and logs. This platform supports storage that matches enterprise needs.

Typical capabilities include:

  • Scalable DDR5 memory for fast host-side work
  • Hot-swap storage for service with less downtime
  • Expansion paths for drives or companion storage nodes

Pair storage with NTS vault and enterprise chassis when you need high-bay tiers for long-term data.

Performance for AI, HPC, and Data Center Workloads

This rack-scale system targets jobs that stress compute and I/O:

  • Large language model training and fine-tuning
  • Deep learning for vision, speech, and multimodal models
  • Scientific simulation and engineering analytics
  • Real-time inference at scale for enterprise AI services

High GPU density helps finish training cycles faster. It can also serve more concurrent inference requests. Grace CPUs help keep data pipelines and control tasks responsive.

Integration, Scalability, and Long-Term Planning

The platform fits data centers that already support liquid-cooled racks. Modular growth lets you add capacity as models and demand grow.

Planning considerations include:

  • Facility readiness for liquid cooling manifolds and CDUs
  • Network bandwidth for multi-GPU and multi-rack traffic
  • Power delivery and backup for sustained GPU load
  • Software stack consistency across training and inference nodes

Blackwell-compatible designs help protect investments as GPU generations advance.

Use Cases and Application Scenarios

This solution fits teams that need rack-scale GPU density. It reduces the need to manage dozens of separate servers by hand.

  • AI research labs training foundation and domain models
  • Enterprise AI platforms serving internal copilots and analytics
  • Defense and federal programs that need secure, high-performance compute
  • Media and simulation workloads with heavy parallel math

Each case benefits from integrated cooling, dense GPUs, and enterprise build options from RackmountNTS.

Related NTS Platforms

Rack-scale B200 deployments often sit with other NTS systems:

Your RackmountNTS team can map compute, storage, and networking into one cluster design.

Conclusion

This liquid-cooled rack-scale platform delivers dense AI and HPC compute. It uses 72 NVIDIA B200 GPUs and 36 Grace CPUs. Liquid cooling and high GPU count address limits of traditional air-cooled racks.

Contact RackmountNTS to discuss facility needs, cluster design, and deployment options.

Frequently asked questions

What sets this liquid-cooled rack-scale solution apart from traditional GPU servers ?
Its direct liquid cooling enables sustained performance and reliability at very high density---72 NVIDIA B200 GPUs plus 36 Grace CPUs---while improving heat dissipation, lowering noise by reducing fan reliance, and enhancing component lifespan. This translates into energy-efficient operation in space-constrained data centers, making it ideal for AI, deep learning, and HPC workloads where thermal headroom and performance stability are critical.
How do the 72 NVIDIA B200 GPUs and 36 Grace CPUs work together for AI and HPC workloads?
The B200 GPUs deliver massive parallel processing for training, inference, and simulation, while the Grace CPUs provide robust general-purpose compute for orchestration, data handling, and complementary tasks. This balanced architecture accelerates end-to-end pipelines---from data analytics to model training---while remaining NVIDIA Blackwell compatible to align with next-generation GPU platform standards.
What storage, memory, and expansion options does the platform support?
It offers versatile, hot-swap storage with scalable DDR5 memory and flexible expansion. Deployments can add adjacent tiers with support for up to 10 NVMe slots when paired with complementary storage nodes. It integrates with 3U or 4U enterprise storage (e.g., 18-bay, 36 hot-swap bays, or 8-bay rackmount options), including platforms like the NTS Elite Vault 4U storage chassis with 38 hot-swap bays---forming a robust storage layer for large datasets.
How easily does it integrate into existing data centers, and how does it scale for the future?
The solution is designed for seamless integration, reducing deployment complexity and fitting into mixed environments. It can sit alongside 2U/4U server footprints (including short-depth edge options), and pair with companion nodes such as NVIDIA HGX B300 servers, dual AMD EPYC or Intel Xeon servers, single-CPU utility nodes, and enterprise SSD storage tiers. It is built for scalable growth and is NVIDIA Blackwell compatible to simplify future GPU upgrades.
Which use cases benefit most from this rack-scale system?
It excels in AI training and inference, HPC simulations, and data analytics---any workload demanding high GPU density and reliable throughput. Enterprises can also leverage it for robust, storage-heavy applications by pairing with high-capacity or enterprise SSD storage tiers, ensuring performance, efficiency, and reliability across diverse data center scenarios.
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