Liquid Cooling | Liquid Cooling

  • What is it?
    As the name suggests, liquid cooling technology uses liquid as a heat transfer mechanism. Two common liquid cooling technologies available on the market for servers are liquid immersion cooling and direct to chip liquid cooling. The former involves immersion of the whole server directly into a bath of non-conductive chemical fluid or oil, and is the most efficient at heat transfer with thermal energy from components dissipated directly into the surrounding fluid. The latter uses pipes to transport cold fluid into and around the server chassis. Heat is then transferred from components to the liquid within the pipes via conductive copper plates, and the heated liquid is then circulated back outside the server and converted back into cold liquid or steam to be re-used.

  • Why do you need it?
    Liquid cooling is more efficient at heat transfer than traditional air-cooling systems, so it is often used for cooling servers that generate a high amount of heat, such as in data centers for servers that perform a high amount of computation for artificial intelligence or simulation. Compared to air cooling which requires fans and heat sinks to assist in heat dissipation, liquid cooling allows for these components to be removed and also does not require extra space to be reserved for air flow, allowing for a reduced size footprint which can be used to greatly increase CPU and GPU density, increasing the potential for more computing power capabilities in a limited space. Liquid cooling technology also reduces energy consumption which allows for a better data center PUE (Power Usage Efficiency) to be achieved.

  • How is GIGABYTE helpful?
    GIGABYTE is working together with multiple industry partners to offer a variety of liquid cooling solutions for our server products, from single-phase oil immersion cooling and two-phase liquid immersion cooling to direct liquid cooling. Providing a variety of differet solutions allows us to best meet the individual needs of each of our customers.

    One recent successful application has been the use of direct liquid cooling with a new GIGABYTE HPC cluster deployment into a large European aerospace center. GIGABYTE's H261-Z60 Hyper-Converged Infrastructure (HCI) server together with a CoolIT direct liquid cooling (DLC) system was used to build the new cluster, providing up to twice the maximum compute power of competing products on the market, allowing the use of space within the data center to be reduced by 50%, and meeting the customer's requirements of high speed compute capabilities in an ambient temperature environment of 40°C with no air conditioning equipment, in order to better meet the goals of energy efficiency and carbon reduction.

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