As far as the eye could see, the exhibition hall was packed with liquid-cooled servers, oil-filled immersion cooling tanks, and all the fittings, pumps, and coolant distribution units (CDUs) you might need to deploy the tech in a datacenter.Their systems are purpose built for liquid cooling and are packed to the gills with copper tubing, distribution blocks, and cold plates for everything, including CPU, GPU, memory, and NICs.Immersion cooling One of the more exotic liquid-cooling technologies on display at SC22 was immersion cooling, which has come back en vogue over the past few years.Submer's tank support OCP OpenRack form factors like these three blade Intel Xeon systems - Click to enlarge The demo tank had three 21-inch servers, each with three dual-socket Intel Sapphire Rapids blades, as well as a standard 2U AMD system that had been converted for use in its tanks.However, we're told the number of modifications required, especially on OCP chassis, is pretty negligible, with the only real changes being to swap out any moving parts from things like power supplies."