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Cake day: July 4th, 2023

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  • Following the links around

    He noted that current cooling solutions do not replace copper entirely with diamond but mainly employ a “diamond + copper” combination, where diamond is responsible for frantically absorbing heat at the most critical localized hot spots, while copper continues to shoulder the burden of the main structure and signal transmission.

    GPUs will fully adopt a solution combining diamond-copper composite thermal management and 45 C direct-to-chip liquid cooling.

    Diamond Cooling: synthetic diamond material added as an extra layer in the thermal stack, intended to spread heat away from hotspots faster than conventional copper solutions,

    Sounds like a diamond layer between the cpu and copper heatsink?



  • Solar energy is more efficient in space because there’s no atmosphere and depending on the orbit can be in the sun for much, much longer than on earth over the day. Apparently you can beam the energy down to earth somehow, but you lose something like 50%. So the solution is to put the data center up where you get the power. The downside is that it costs a fuckton to send it up, cooling becomes an issue, temperature gradients become an issue, heat and cold cycles as it goes from sun to the dark side of earth is an issue, and the funnest part is that cosmic rays can fry electronics like GPUs.