Application | Decoding AI Server Power Testing: How NGI's End-to-End Solutions Drive Industry Advancement

AI Server Power Supply Market: High Power, Efficiency, and Voltage Trends

The AI server power supply market is surging, propelled by the rapid growth of AI technologies like DeepSeek and ChatGPT. Projections indicate the market will reach $5.3 billion by 2026, marking a fivefold increase from 2023 with over 50% average annual growth.

High power, high efficiency, and high voltage are pivotal trends in server power supply development.

High Power

As the cornerstone of AI computing power, GPU chip power consumption has soared from 400W in 2021 to over 1,000W. This surge drives up server power supply requirements. Mainstream PSU models now reach 5.5kW, and the latest NVIDIA GB300 NVL72 delivers over 130kW per rack.

High Efficiency

 T-brand's latest 5.5kW server power supply, certified with 80 PLUS Ruby, achieves up to 97.5% efficiency.

High Voltage

The new ±400V and 50V power architecture cuts transmission losses, boosting efficiency by over 3% compared to traditional UPS and 240V/336V systems.

Diverse Testing Standards: Wide Ranges, High Speed, and High Power Pose Pain Points

Major server power supply testing standards include ORV3, M-CRPS, 80Plus, ATX, and SSI. Among them, ORV3 specifies detailed requirements for AI server power supplies such as PSU, Power Shelf, and BBU.

The electrical characteristics of the PSU power module are specified by the Open Rack V3 48V 5.5kW PSU Specification,with key test items as follows:

Server power supply testing is marked by these features:

Wide Ranges

Data center power supplies cover a wide voltage range, including PSU outputs of 12V/50V and HVDC voltages of 240V/336V/±400V. Traditional single or dual range electronic loads can't ensure testing accuracy.Users need to buy extra electronic loads for different voltages, increasing costs.

High Speed

Whenhandling high-speed, large-model tasks,server current fluctuates sharply withtask loads (by several A to tens of A per μs). This requires test loads to have higher dynamic performance.

High Power

Server power supplies undergo full-load aging testsbefore leaving the factory to ensure reliability. But traditional resistive and electronic loads, due to design limitations, convert test energy into heat. This raiseselectricity costs and brings extra cooling expenses.

Fast, Accurate, and Cost-effective!

NGI's All-scenario Testing Solution Ensures Worry-free Testing for the Entire Industry

With years of deep-seated expertise in data center energy, NGI has launched an all-scenario testing solution tailored to the AI server power supply testing requirements of the industry.It can meet seven major test applications, including PSU, Power Shelf, Rack Power, Modular Power, HVDC, and BBU, delivering remarkable customer value.

Fast

Achieves high-speed loading and accurately simulates server dynamic characteristics. The N69200 series supports 30A/μs per unit, the N67000 series 60A/μs, with multi-unit parallel loading up to hundreds of A/μs, meeting the high-speed dynamic loading demands ofAI server and Vcore power supplies.

Accurate

Features a tri-range design for precise, wide-range measurements. The N69200's 1200V model offers three ranges (1200V, 600V, 120V) with 0.015%+0.015%F.S. accuracy. At 50V testing, the error is minimal (0.025V), ensuring accuracy from 48V to 800V.

Cost-effective

Energy regeneration saves power and costs. The N35500 and N35100 series can switch to regenerative load mode, feeding test energy back into the grid with 93% efficiency,reducing electricity and cooling costs.