When it comes to liquid and immersion cooling, Nvidia asks: Why not both?
Nvidia's interest in liquid cooling isn't surprising because its products have produced more heat as they evolved. Today, the chip shop's SXM GPUs top out at 700W, while its Grace-Hopper Superchips – which combine an H100 with a 72-core Grace CPU and 512GB of LPDDR5 – are rated for 1kW a piece.
Nvidia is no stranger to liquid cooling. The accelerator giant has offered liquid cooled form factors for its SXM GPU modules for a few years. However, it's only recentlyliquid cooling to the rest of its lineup. It took until the Computex conference in May 2022 to start offering its popular A100 PCIe cards in a DLC form factor with plans for a liquid cooled H100 starting in 2023.
According to the blog post, during the first year engineers will focus on component testing before moving on to partial rack tests in 2025. For this, Nvidia has tapped liquid cooling specialist outfit BOYD Corp to help with cold plates; two-phase cooling champ Durbin Group to work on pumps; Honeywell for the refrigerant; and datacenter infrastructure player Vertiv for heat rejection.
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