GPU WORLD · GW-LC-CDU-12A
12 kW planning class liquid-to-air CDU
Thermal sizing reviewReview room-air heat rejection for a four-GPU server project. Match the CDU to actual liquid-side load, coolant flow and the room’s ability to remove heat.
Fit and compatibility
- Share the GPU and CPU configuration, power settings and expected liquid-captured heat. Confirm required cold plate flow, coolant supply limits and server connections.
- Confirm the available rack space and radiator inlet temperature at peak room load. Check airflow clearance and HVAC capacity for both the CDU exhaust and residual server air heat.
Scope of supply
- Specify the CDU pump, heat exchanger and fans against the agreed duty, with the connection, power and controller requirements in the quote.
- Determine whether hoses, manifold connections, fluid, leak sensors or site HVAC work are in scope. Obtain supplier curves for the chosen coolant and radiator inlet air temperature.
Operating conditions
- Four H200 SXM GPUs at 700 W each and two example CPUs at 350 W each total 3.5 kW of device heat. Estimate the fraction actually entering liquid and add any other liquid-cooled loads.
- Use the 12 kW class to frame selection. Check the actual radiator and pump operating points at peak entering air temperature and agreed coolant supply temperature.
- Size room cooling for heat released by the CDU, residual IT air heat and in-room CDU losses. The room must support the combined load during sustained operation.
Acceptance checks
- Run the server at the agreed load and verify coolant supply temperature, branch flow and radiator inlet air temperature after the loop stabilises.
- Check the room remains within its approved envelope at peak duty. Exercise the agreed alarm and fan or pump fault responses under controlled conditions.
Technical references
Use these references to identify the platform and design requirements. GPU WORLD confirms the applicable assembly and operating conditions for each project.
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Plan your cooling project
Our team will review server fit, heat rejection and the scope of supply.