Liquid-cooling project input checklist
Define heat load, the technology loop, facility interfaces, controls, validation and delivery boundaries before selecting hardware.
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Define heat load, the technology loop, facility interfaces, controls, validation and delivery boundaries before selecting hardware.
Review L2L or L2A architecture, system curves, exact redundant elements, controls and service access instead of nameplate duty alone.
Cover installation, flushing, pressure and leakage, filling and venting, controls, redundancy changeover and loaded acceptance.
Review coolant, water quality, the complete wetted-material system, verification methods and operating controls.
Cold-plate cooling keeps coolant inside a closed loop and preserves familiar server service patterns for many deployments. Immersion places equipment in dielectric fluid and can suit specialized density or form factors, but requires compatibility, fluid manage
A CDU connects and separates the IT secondary loop and facility primary loop, transfers heat and stabilizes coolant supply through pumps, filtration, air management, sensing and controls. Selection should consider duty, flow and head, supply-return temperature
Pressure drop determines pump head and power and affects parallel-branch flow distribution. Narrow passages, too many connectors or an unbalanced manifold can deprive cold plates of target flow. Cold plates, hoses, connectors, manifolds, filters and heat excha
Review metal and galvanic corrosion, seal and hose swelling, joining residues, particles, biological risk and water-quality drift together. Materials, coolant formulation, temperature range, refill method, filtration and maintenance intervals should be defined
Validation should expand from component to node, rack and system, covering thermal performance, flow and pressure drop, pressure resistance, leak integrity, cycling, material compatibility, transport vibration, controls and abnormal conditions. Test conditions
Liquid cooling can reduce server fan and room-air transport demand and enable warmer coolant, but final PUE still depends on climate, heat-rejection path, pump power, cooling source, load factor and controls. Assessment should use a complete system boundary an
A liquid-to-air CDU transfers secondary-loop heat to room air and can support sites without facility water or phased retrofits, but the heat remains in the white space. Room sensible capacity, airflow, fan power, acoustics, redundancy, final rejection and the
Cold plates usually capture major CPU and GPU heat while memory, storage, power supplies, networking and board components still reject heat to air. Define the liquid-capture ratio, residual air load and derating strategy before sizing room air or rear-door coo