Direct-to-Chip Liquid Cooling Operations for AI/HPC data centers

Direct-to-Chip (DTC) Liquid Cooling Operations is the discipline of running liquid-cooled AI and HPC data centers after installation and commissioning. It covers written procedures (EOPs, MOPs and SOPs), coolant chemistry and leak management, and certified technician training. Salute launched the industry’s first dedicated DTC Liquid Cooling Operations service at NVIDIA GTC.

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GPU generation Rack density Operational implication
Grace / Blackwell 120-150kW+ DTC required; air-assist hybrid possible
Vera Rubin 250kW+ Full DTC, tighter leak/chemistry tolerances
Feynman 400-600kW+ DTC only; facility-level liquid operations
Future 1MW+ Liquid operations as the core facility discipline

For AI/HPC, heat rejection must begin at the chip.
Direct-to-Chip (DTC) Liquid Cooling is the solution.

For decades, blowing air on servers was good enough for thermal management of servers. But air cooling is only effective for 30-40kW/rack, and power densities are magnitudes higher for AI/HPC computing equipment. “Blowing cold air on it” simply is no longer enough. For AI/HPC, heat rejection needs to start at the chip with Direct-to-Chip Liquid Cooling.

Direct-to-Chip Liquid Cooling requires an entirely new approach to data center operations

Utilizing liquid cooling requires a fundamental rethinking of data center operations to successfully operate complex DTC liquid cooling systems and to mitigate the new risks that liquid cooling creates.

Even brief interruptions to liquid cooling can lead to temperature spikes that cause catastrophic damage to expensive AI/HPC servers. Likewise, leaks in the liquid cooling systems can cause expensive equipment failures and create potentially fatal safety risks for workers. To mitigate these operational and financial risks, your organization must establish an entirely new set of operational processes based on proven best practices.

Interview: John Shultz (Salute) & Vishal Kochar (Ecolab)

Discussing the future of liquid cooling operations for AI data centres at Datacloud 2026.

Interview: John Shultz (Salute), in conversation with The Tech Capital, on operating and safeguarding liquid-cooled AI data centres at scale.

White paper: Maximize your investment and minimize downtime with an operating model based on industry-leading best practices

Industry insights

Interview: John Shultz (Salute) in conversation with DCS to discuss the company’s collaboration with Ecolab and how Ecolab’s Cooling-as-a-Service (CaaS) program simplifies the management of the technology loop.’

Broadcast: Salute CEO Erich Sanchack, Chief Product Officer John Shultz, and AI/HPC Lead for EMEA James Feeney join DCD to discuss what it takes to get facilities and teams AI-ready from day one.

Resources

The Salute AI Hub magazine brings together the latest insights, partnerships, and perspectives on AI data center operations – from direct-to-chip liquid cooling, to workforce readiness, and the future of AI infrastructure.

This Salute and Ecolab white paper explores why world-class chemistry management is critical for Direct-to-Chip liquid cooling in AI factories — from PG-25 coolant health and real-time monitoring, to tech loop risk mitigation, operational best practices, and protecting high-density AI infrastructure from costly downtime.

Industry-leading operational model for AI/HPC, 
customized to your design

Salute has created best practices, e-learning and hands-on training for our operators, ensuring your liquid-cooled infrastructure is managed with best-in-class EOPs, MOPs, SOPs, emergency drills, chemistry management and leak management. We safeguard your AI investments with the expertise and discipline needed to prevent leaks, manage safety, and maximize uptime.

Design and operational assessments to create an operational model for HPC environments

Industry best practice procedures –
EOPs, MOPs and SOPs

Comprehensive on-site classroom training,
e-learning, and lab-based certification programs
for operations staff specializing in direct-to-chip
liquid cooling systems

Commissioning
Validation of AI Design
Facilities Management Operations
Operational Acceptance
Operational
Requirements
Chemistry
Management
Leak
Management
Management Systems

Let's enable world-class DTC operations for your AI/HPC data center

Salute’s Best-in-Class Operational Model will ensure your data center operations can evolve to support this new Direct-to-Chip Liquid Cooling model. Contact us today to begin the process of assessing your design, analyzing your operational requirements and creating an operational model that meets your business objectives.

Commissioning of DTC Equipment
and Operational Protocols
Continuous Improvements
to Operational Best Practices
Assessment of DTC Operational
Requirements and Data Center Design
Customized Operational Processes for your specific equipment and customer requirements based on our best practice-based library of DTC operational processes
(EOPs, MOPs, and SOPs)
A Proven, Best Practice-Driven Approach to Education and Training for Chemistry Management, Leak Detection, Safety Protocols and Other Operational Processes

DTC Cooling FAQs

1. What is Direct-to-Chip (DTC) Liquid Cooling?

Direct-to-chip (DTC) liquid cooling is a cooling method that circulates coolant through cold plates mounted directly onto high-performance components such as CPUs and GPUs. By removing heat at the source, DTC liquid cooling is far more efficient than traditional air cooling, making it the preferred solution for AI infrastructure, high-performance computing (HPC), and high-density data centers.

As rack power continues to increase, DTC liquid cooling enables organizations to support demanding AI workloads while improving energy efficiency, reducing thermal stress, and maintaining reliable system performance.

2. Why Can't Air Cooling Support Modern AI Workloads?

Traditional air cooling is no longer sufficient for the heat generated by today's AI servers. Modern AI racks, including NVIDIA Grace Blackwell, Vera Rubin, and Feynman platforms, can consume between 120-150kW, 250kW, and 400-600kW per rack, with future generations expected to eventually approach 1MW.

At these power densities, air cannot remove heat quickly enough. The result is thermal hot spots, reduced performance through processor throttling, and an increased risk of hardware failure. Direct-to-chip liquid cooling removes heat directly from CPUs and GPUs, allowing high-density AI infrastructure to operate safely and efficiently.

3. What Is a Direct-to-Chip Liquid Cooling Operations Service?

A DTC liquid cooling operations service ensures liquid-cooled infrastructure continues to operate safely and reliably after installation and commissioning. While the cooling hardware is essential, long-term performance depends on effective operational management.

Salute's DTC operations services include preventive maintenance, emergency operating procedures (EOPs), maintenance operating procedures (MOPs), standard operating procedures (SOPs), coolant chemistry management, leak detection and response, operational readiness, and specialist training for technical teams. These services help reduce operational risk while maximizing uptime for mission-critical AI environments.

4. What Can Go Wrong in a Liquid-Cooled Data Center?

Although direct-to-chip liquid cooling is highly reliable, it introduces operational considerations that require specialist expertise and clearly defined procedures.

A brief interruption to coolant flow can cause temperatures to rise quickly, potentially rapidly damaging expensive AI hardware. Coolant leaks can create safety risks where liquid and live electrical equipment are present, while poor coolant chemistry can lead to corrosion, blockages, and reduced cooling efficiency over time.

Managing these risks requires continuous monitoring, preventive maintenance, documented operating procedures, and trained personnel who understand liquid-cooled environments.

5. What Are EOPs, MOPs and SOPs in a Liquid-Cooled Data Center?

EOPs (Emergency Operating Procedures), MOPs (Maintenance Operating Procedures), and SOPs (Standard Operating Procedures) are documented processes that guide every aspect of operating a liquid-cooled data center.

These procedures define how technicians respond to emergency situations, carry out planned maintenance, and perform routine operational tasks safely and consistently. In a direct-to-chip liquid cooling environment, they also cover coolant chemistry management, leak response, equipment isolation, safety protocols, and operational best practices.

Maintaining accurate, regularly updated procedures helps reduce risk, improve consistency, and support reliable operation of mission-critical AI infrastructure.

6. How Do You Train Technicians to Operate Liquid-Cooled Infrastructure?

Operating a liquid-cooled data center requires specialist skills that extend beyond traditional facility management. Technicians need to understand coolant systems, leak response, chemistry management, safety procedures, and the operational requirements of high-density AI environments.

Salute delivers a combination of classroom instruction, e-learning, practical laboratory exercises, and on-site training, allowing technicians to develop hands-on experience before working within live production environments. This structured approach helps improve operational readiness while supporting safe, confident maintenance of direct-to-chip liquid cooling systems.

7. How Quickly Is Direct-to-Chip Liquid Cooling Being Adopted?

The adoption of direct-to-chip liquid cooling is accelerating rapidly as organizations deploy increasingly powerful AI infrastructure. Higher rack densities and growing demand for generative AI, machine learning, and high-performance computing are making liquid cooling a critical requirement for modern data centers.

Many new AI deployments are being designed with liquid cooling from the outset, while existing facilities are upgrading their infrastructure to support higher power densities. As AI technology continues to evolve, direct-to-chip liquid cooling is expected to become the standard cooling approach for next-generation data centers, making operational expertise, maintenance, and technician training more important than ever.

Download our white paper

Let’s optimize your DTC Liquid Cooling for what’s next

Salute’s Best-in-Class Operational Model will ensure your data center operations can evolve to support this new Direct-to-Chip Liquid Cooling model. Contact us today to begin the process of assessing your design, analyzing your operational requirements and creating an operational model that meets your business objectives.

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John Shultz

Chief Product Officer, AI & Chief Learning Officer