First look at the New GPU Cooler Prototype

For the past while I’ve been working on a major redesign of my high performance gpu cooler project.

The rapid ascent of the LLM into the collective consciousness has sent the big players into a frenzy over datacenter GPUs. This is putting accelerating downward pressure on the price of all used compute GPUs, even the historically pricey stuff. P100s can be had for ~$100, V100 16GB are selling for ~$500, any day now the lower VRAM Ampere cards are going to drop below $1000…

We need a new cooler that can support any of these 300W GPUs, can be installed as densely as the cards, and is easy on the ears for homelab use. Pictured below are four prototype coolers installed on Tesla P100s:

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1kW of GPUs on the OpenBenchTable

In the conclusion of my previous homelab post, I pled to the eBay gods begging for a 4xP100 system. My prayers were heard, possibly by a malevolent spirit as a V100 16GB for $400 surfaced. More money than I’d be willing to spend on a P100 but the cheapest I’d ever seen a V100, I fell to temptation. To use all four cards, I needed something bigger than the Rosewill RSV-R4100U. Enter the OpenBenchTable, and some 3d printed parts I designed to be able to securely mount four compute GPUs:

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