Can gamers teach us anything about datacenter cooling? Lenovo seems to think so
It's no secret that CPUs and GPUs are getting hotter. The thermal design power for these components is already approaching 300W for mainstream CPUs, and next-gen datacenter GPUs will suck down anywhere from 600W-700W when they arrive later this year.
"We used to complain about 145W CPUs. This generation we're seeing 300W CPUs and by 2024, there's no doubt in my mind we will have 500W CPUs in market," he says."We're kind of running out of room for air to do what we need it to do at the densities we're used to seeing."One of the technologies Lenovo is exploring is the use of closed-loop liquid-cooling systems, not unlike the all-in-one coolers used in high-end gaming systems.
The tech differs from conventional datacenter liquid cooling setups in that the fluid doesn't actually evacuate the heat from the system, but rather relocates it within the chassis where it is easier to deal with. This, he says, means hotter components like 400W+ SXM GPUs can be packed into smaller chassis sizes. And because they're self-contained, these systems don't require any changes to existing rack or datacenter infrastructure.
"What it allows us to do is one of two things, either put in a higher-end processor – some HPC clients like that – or if you go with a more standardized processor, we're able to lower our fan speeds and then in turn lower acoustics and power consumption," Tease says.And it's not just the CPUs and GPUs that are getting more power hungry, according to Tease. The percentage of power consumed just by a system's fans has skyrocketed in recent years.
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