CoolIT Systems Demonstrates 15kW Coldplate, Extending Single-Phase DLC Roadmap Far Beyond 2030

Key Takeaways

• 15kW coldplate offers four‑times performance of prior 4kW design
• Single‑phase DLC now viable for future ultra‑dense AI GPUs
• Validated with water‑glycol coolant at 1.2 L/min/kW flow rate
• NVIDIA cites warm‑water DLC as key for next‑gen AI platforms

Pulse Analysis

The rapid escalation of AI workloads is pushing GPU and accelerator power densities to unprecedented levels, making traditional air‑cooling insufficient. CoolIT Systems’ 15kW coldplate addresses this challenge by leveraging a split‑flow microchannel design that efficiently extracts heat directly from the chip, allowing servers to operate with warm‑water coolant at 45 °C. This approach not only improves thermal headroom but also reduces the energy overhead associated with chillers, translating into lower total‑cost‑of‑ownership for hyperscale data centers.

From a technical standpoint, the 15kW platform maintains a modest flow rate of 1.2 L/min per kilowatt using a standard water‑glycol mixture, simplifying integration with existing cooling loops. The architecture’s scalability means it can accommodate future AI processors that may exceed 30 kW per module, positioning single‑phase DLC as a future‑proof solution. Moreover, the warm‑water operating range aligns with industry trends toward higher inlet temperatures, which improve overall system efficiency and enable more flexible rack designs.

Market implications are significant. With NVIDIA publicly endorsing warm‑water DLC for its upcoming AI platforms, CoolIT’s demonstration reinforces confidence among cloud service providers and OEMs to adopt liquid‑to‑chip cooling at scale. As data centers aim to meet sustainability targets while delivering ever‑greater compute performance, technologies like CoolIT’s 15kW coldplate will likely become a standard component in next‑generation AI infrastructure, extending the relevance of single‑phase DLC well beyond 2030.