Rackscale Solution
LiquidMax® RackScale 64
Solution Overview
LiquidMax® RackScale 64 is a fully liquid-cooled 42U AI rack designed to support next-generation training and inference workloads. Built for dense GPU deployments, it integrates compute, cooling, and power in a compact footprint. This solution enables energy-efficient operation with the thermal control needed for sustained performance.
Key Features
- Supports up to 64x NVIDIA® Blackwell GPUs
- 8x 4U liquid-cooled compute servers with NVIDIA NVLink™ interconnect
- Integrated direct liquid cooling with passive cold plates
- CDU with redundant PSU and dual hot-swap pumps
- Vertical cooling distribution manifold for even flow
- Turnkey, rack-ready solution for faster deployment
- Optional support for NVIDIA Quantum-2 InfiniBand or Spectrum™-4 Ethernet
LiquidMax® RackScale 64
High-Density Liquid-Cooled AI Rack Solution
System Overview
| Component | Details |
|---|---|
| GPU | 64× NVIDIA Blackwell GPUs (8× 4U compute nodes) |
| Cooling | Direct liquid cooling with CDU and vertical distribution manifold |
| Architecture | 42U rack with 8× 4U liquid-cooled servers |
| Power | Integrated power distribution with redundant pump and PSU design |
| Management | Out-of-band IPMI, in-band Ethernet switching, optional leak detection |
AceleMax® AXG-428IL – 4U Liquid-Cooled GPU Server
| Component | Details |
|---|---|
| CPU | Dual Intel Xeon 6700P/6500P/6700E series (LGA 4710) |
| Memory | 32× DDR5 DIMM slots (2DPC), up to 128GB per DIMM, 6400MT/s (1DPC) |
| GPU | NVIDIA Blackwell 8-GPU with NVIDIA NVSwitch |
| Storage | 8× NVMe (PCIe Gen 5) hot-swap bays, plus 2× from CPU, 1× internal M-key |
| Expansion | 8× HHHL + 2× FHHL PCIe Gen 5 x16 slots |
| Networking | 2× 1GbE RJ45 (Intel i350), 1× dedicated IPMI port |
Meeting the Power Demands of Modern AI
Today’s AI workloads require significantly more power than previous generations. As model sizes grow, so do the demands on power and thermal systems. The RackScale 64 is engineered to address these requirements with efficient liquid cooling that minimizes energy waste and maintains consistent performance during sustained high-power operation.
Why AMAX
AMAX helps organizations deploy advanced computing infrastructure with confidence. From thermal and mechanical engineering to full rack integration, testing, and delivery, our team builds reliable solutions designed for demanding AI and HPC workloads. With over 40 years of experience, we transform standard components into fully integrated systems optimized for real-world data center performance.
LiquidMax® RackScale 72
NVIDIA GB300 NVL72 with 36 Grace™ Arm® Neoverse V2 CPUs and 72 Blackwell Ultra GPUs.
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Per Rack:
- 18 x Compute Tray + 9 x Switch Tray
- Fully Liquid-cooled
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Per Tray:
- 4 x NVIDIA Blackwell Ultra GPU + 2 x Grace™ CPU
- 960GB LPDDR5X + 1152GB HBM3e
- 4x NVIDIA NVLink™ Switch
- 2 x NVIDIA ConnectX®-8 NICs (1-port 800Gb/s)
- 1 x BlueField®-3 DPU (400Gb/s)
LiquidMax® RackScale 128
Solution Overview
The LiquidMax® RackScale 128 is a fully liquid-cooled 51OU AI rack built with open rack architecture. Designed for hyperscale deployments, it delivers the GPU density, thermal efficiency, and power infrastructure required to support large-scale AI and ML workloads.
Key Features
- Supports up to 128x NVIDIA Blackwell GPUs or AMD Instinct™ MI355X / MI325X accelerators
- 8x 5OU compute trays with cold plate liquid cooling
- Centralized 48V busbar power distribution for improved efficiency
- Built-in leakage detection, CDU support, and optional RDHx integration
- Supports dual 400W CPUs and high-performance DDR5 memory
- PCIe Gen 5 expansion for high-speed networking and connectivity
LiquidMax® RackScale 128
High-Density Liquid-Cooled AI Rack Solution
System Overview
| Component | Details |
|---|---|
| GPU | 128× GPUs (8× 5OU compute trays) |
| Cooling | Liquid-to-liquid cooling with CDU support and active leakage detection |
| Architecture | Open rack design, 51OU rack with 8× 5OU trays |
| Power | 8× 33kW power shelves with centralized 48V busbar distribution |
| Management | Integrated leakage detection trays and monitoring |
Compute Node Specifications
| Component | Details |
|---|---|
| CPU | 2× AMD Turin 9655, 96-core, SP5 (2-socket), up to 400W TDP |
| Memory | 24× DDR5 DIMM slots, 96GB RDIMM (5600MT/s), 1DPC |
| Expansion Slots |
6× PCIe 5.0 x16 (SS FHHL):
|
Built for Hyperscale AI
The RackScale 128 is designed for large-scale cloud providers, data centers, and enterprises with extreme compute requirements. The open rack architecture design supports wider 21″ racks for improved airflow and accessibility, while front-to-back cooling and blind-mate manifolds simplify installation and maintenance.
Its cold plate liquid cooling ensures stable operation under sustained load. The 48V power busbar architecture improves electrical efficiency, minimizes cabling, and enhances serviceability.
21″ Design Advantages
- Modular 5OU tray design for scalable deployment
- Front-access compute and power nodes
- Shared busbar reduces complexity
- Blind-mate liquid manifolds for efficient maintenance
- 21” chassis format increases airflow compared to traditional 19” racks
Why AMAX
AMAX helps organizations deploy advanced computing infrastructure with confidence. From thermal and mechanical engineering to rack integration, testing, and deployment support, our team delivers reliable, high-performance solutions built for AI and high-density workloads.
With over 40 years of experience, AMAX engineers transform standard components into fully integrated solutions optimized for thermal, electrical, and mechanical performance.