Testing AI server power and components with Chroma ensures accuracy, security, performance, regulatory compliance, and future development.
AI server power testing involves evaluating the power supply systems’ performance, efficiency, and reliability that support these high-demand computing environments. Here are some key aspects:
The image illustrates a typical 100kW AI server featuring a server cabinet with a water-cooled system and a 48V backplane. The server cabinet houses 10 server cards, each containing 10 AI chips, totaling 100 AI chips consuming 10kW. The power supply system includes a 480V 3-phase 100kW input, which is simulated by a Chroma 61800 grid simulator. The power is then managed by a regenerative DC electronic load (Chroma 63700) and distributed through high power DC electronic loads (Chroma 63200A) and high-power DC power supplies (Chroma 62000DC). Voltage regulation is achieved using a 48V to 12V voltage regulator and a 12V to 0.8V POL converter tested by ultra-low voltage DC electronic loads (Chroma 63202A-20-2000) and programmable DC power supplies (Chroma 62000P).
The image illustrates a Server Cabinet Thermal & Power Verification Testing setup. It shows a facility requirement 8kW at 480V 3-phase power connected to a 100kW Grid Simulator (Chroma 61800). This simulator is linked to a 100kW AI Server Cabinet, which operates at 48VDC. The server cabinet is connected to a 100kW Regen Load (Chroma 63700). The process demonstrates a 92% regeneration efficiency. The diagram depicts the power flow from the facility to the grid simulator, then to the server cabinet, and finally to the regen load. The setup is relevant for testing server cabinets’ thermal and power performance, ensuring they meet specific standards and operate efficiently.
Chroma 63202A-20-2000 : Ultra-low voltage DC electronic load specifically designed for applications of 2,000A@0.2V and 1,000A@0.1V, such as simulating loading characteristics of AI microprocessors and engineered for reliable testing of VRMs, VRDs, POLs, and D2Ds. It is also well-suited for EVs, fuel cells, and other low voltage-high current applications. The instrument features a unique front copper busbar design that provides low inductance connections, enabling industry-leading slew rates and minimizing IR voltage drops due to cable resistance.
