American technology company Microsoft is exploring the possibility of using liquid instead of air to cool data centers that support the operation of artificial intelligence (AI) systems. This was reported by oppression Bloomberg.
In mid-November, Microsoft introduced its new Maia 100 microprocessors designed to support the operation of neural networks. The heat generated by Maia 100 chips is removed by special plates under which liquid coolant circulates. The use of these processors will begin in 2024.
Cold plate technology is seen as an intermediate step between maintaining operating temperatures using fans and complete immersion of server racks in special liquid tanks.
Although liquid cooling of computers has long been known and widespread among gamers who demand the performance of their computers, similar systems are difficult to implement on the scale of large data centers and will require large expenses. Experts say that when designing such solutions it will be necessary to take into account not only the weight of computer cabinets with a height of about 2.5 meters, but also the mass of the liquid used to remove heat.
On the other hand, cooling continues to be the fastest growing cost of physical infrastructure in data centers. The total cost of heat removal increases by 16% every year. Additionally, up to 40% of a data center’s total power consumption is spent on cooling.
Another concern relates to the type of refrigerant; because many refrigerants contain so-called “forever chemicals” that do not break down naturally and can accumulate in the environment and organisms. Microsoft didn’t specify exactly how they plan to cool the Maia 100.
Previously Chinese company OnePlus presented Powerful smartphone with liquid cooling system.