LEVIATHAN SYSTEMS

01 / Services

GPU Rack Assembly & Integration_

Full-scope GPU rack builds from bare rack to production-ready cluster. We handle the entire physical assembly — rail install, server and switch placement, power and network cabling, NVLink and InfiniBand routing, and POST verification. Over 1,500 racks deployed across every current NVIDIA platform.

What We Build_

We assemble and integrate GPU racks for AI-scale data center deployments. Our scope covers the complete physical build of a GPU rack — not just placing servers on rails, but every cable, every connection, every verification step required to hand off a production-ready system.

This is not rack and stack. GPU racks at the H100 level and above involve dense NVLink topologies, high-power cable routing, InfiniBand fabric connections, and — on GB200 and GB300 platforms — liquid cooling integration.

Every platform generation has different assembly procedures, different cabling layouts, and different commissioning requirements. We know them because we deploy them daily.

Scope of Work_

Mechanical Assembly

Rail installation, server placement, switch placement, and PDU mounting. Every component positioned per the OEM's reference architecture and secured for seismic and transport compliance.

Power Cabling

High-power cable routing from PDU to server, including redundant power feeds where specified. Cable management, strain relief, and labeling per TIA-942 standards.

Network Cabling

All copper and fiber connections between GPU nodes and top-of-rack or end-of-row switches. DAC, AOC, AEC interconnects plus MPO/MTP fiber trunks for high-density fabrics.

NVLink & InfiniBand Routing

GPU-to-GPU NVLink interconnects routed per NVIDIA's topology specifications. InfiniBand cabling for cluster-level fabric connectivity. These connections are the backbone of GPU compute performance.

Cable Management & Labeling

Every cable dressed, routed, and labeled at both ends. Naming convention aligned to the network topology and documented in the handoff package.

POST Verification

Power-On Self-Test on every server in the rack. All GPUs detected, NVLink and InfiniBand links confirmed active, firmware versions verified. No rack is handed off without confirmed POST.

NVIDIA Platforms We Deploy_

H100 (Hopper)

80GB HBM3, 700W TDP

Available in air-cooled and liquid-cooled configurations. The baseline for current-generation AI training infrastructure. We deploy both DGX H100 and HGX H100 configurations.

H200 (Hopper with HBM3e)

141GB HBM3e memory

Drop-in upgrade to the H100 platform with 76% more memory bandwidth. Same physical form factor — assembly procedures are similar to H100 with updated firmware and validation steps.

GH200 (Grace Hopper Superchip)

CPU+GPU unified architecture

Connected via NVLink-C2C. Different physical layout than standard HGX platforms. Requires specific attention to NVLink-C2C cabling and power delivery.

GB200 NVL72

72 Blackwell GPUs, ~120kW

100% liquid cooled — no air-cooled option. This is a fundamentally different build from any previous NVIDIA platform. Assembly includes liquid cooling manifold routing, CDU integration, and thermal commissioning.

GB300 NVL72

288GB HBM3e per GPU

Blackwell Ultra. Currently deploying. The highest-density GPU platform available. Builds on the GB200 NVL72 architecture with increased thermal requirements and updated NVLink topology.

Our Process_

01

Scoping

Review hardware BOM, facility layout, rack count, and deployment timeline.

02

Work Planning

Detailed crew plan with sequencing, milestones, and quality checkpoints.

03

Assembly & Cabling

Physical build execution with lead technician inspection at each phase gate.

04

Testing & Verification

Every connection tested. Every server POST verified. Results documented.

05

Commissioning & Handoff

Documentation package delivered. Walk-through with ops team.

Track Record_

1,500+
GPU racks assembled
25,000+
Cable connections deployed
8+
Data center projects completed
5
NVIDIA platforms deployed

Platforms deployed: H100, H200, GH200, GB200 NVL72, GB300 NVL72

OEM ecosystem: Dell, NVIDIA, Supermicro, Arista

Work With Us_

GPU rack assembly is the foundation of every AI infrastructure deployment. If your racks are not built right, nothing downstream works. We build them right.

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Ready to Deploy Your GPU Infrastructure?_

Tell us about your project. Book a call and we’ll discuss scope, timeline, and the best approach for your deployment.

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