In the previous article, ” Are There Solutions for Heat Dissipation Performance for Servers?“, we discussed how Allion assists clients in testing server cooling and provides data along with subsequent improvements and evaluations.

This article will focus on one of the three key aspects of cooling architecture: the GPU air duct, and its impact on server cooling.

Server cooling technologies primarily rely on two main approaches: air cooling and liquid cooling.

Air cooling depends on airflow convection for heat dissipation, while liquid cooling utilizes fluid flow to carry away heat. In air cooling systems, careful design of the air duct is particularly crucial to ensure effective airflow, which is pivotal for overall cooling performance. During server development, clients often provide initial versions of air ducts for preliminary cooling verification, and modifications to the air duct are made based on test data.

Real Case Study

The dispersion of cooling airflow from the GPU intake (intended path indicated by red arrows, but some airflow may escape from the side indicated by blue arrows) may lead to reduced heat dissipation efficiency of the machine, resulting in increased internal temperatures of the chassis and subsequent operational issues with related components due to high temperatures.

Through the addition of baffles in the air duct and subsequent validation, the feasibility of this improvement solution can be confirmed through analysis of test data. Once validation results are obtained, clients typically apply this change to subsequent air duct designs to further enhance server cooling efficiency. This effective optimization of cooling technology not only helps maintain stable operating conditions but also improves the overall performance and reliability of servers.

Allion’s attention to server cooling architecture is not only reflected in testing to provide a stable environment in the long term but also in providing timely feedback. When issues or concerns arise with cooling architecture, we are committed to immediately providing this information to clients to assist them in addressing potential challenges.

Additionally, we actively participate in the improvement process, leveraging years of accumulated experience to offer practical recommendations to clients. This includes completing verification of various cooling architectures within a short timeframe to ensure that the implementation of improvement solutions does not affect product production cycles. We aim to provide clients with high-quality cooling solutions through a swift and effective improvement process while maintaining product manufacturing progress, enabling clients to confidently launch excellent server products. This proactive attitude not only demonstrates our commitment to technological innovation but also our responsiveness to customer needs.

In addition to our extensive project experience, Allion has complete equipment and environments. We have walk-in temperature chambers suitable for various server cooling requirements, with heat loads ranging from 13KW to 65KW, capable of providing cooling verification services for single machines, multiple machines, and cabinet configurations.


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If you have further requirements for consulting services related to server cooling, please feel free to contact us.

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