Scalding hot AI accelerators have put datacenters in hot water. Two-phase cooling could chill them out

Liquid cooling makes it possible to operate multi-kilowatt accelerators and ultra -dense datacenter racks, but new research commissioned by startup Accelsius suggests that we've been using the wrong liquids for the job.

The company found different cooling fluids can shave millions off datacenter operating costs by allowing bit barns to run their water systems up to 14° C higher than existing systems.

By swapping single-phase coolants used by existing GPU servers for two-phase fluids, like those used in refrigerators and air conditioning units, Accelsius claims it can support facility water temperatures up to 54° C, or up to 59° C if the operator is willing to double a facility's flow rate.

While running at 59° C rather than 45° might not sound like a big difference, Accelsius claims that every 1° C increase in facility water temp corresponds to roughly 4 percent in annual energy savings.

Given the datacenter building...

Copyright of this story solely belongs to theregister.com. To see the full text click HERE