// hardware cooling

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Jul 30

Startup Proposes Space-Based Cooling System for AI Data Centers

Caltech and Sophia Space are betting that space's vacuum and solar power can solve the thermal bottleneck in AI infrastructure. Data centers consume 4-5% of US electricity, and cooling accounts for roughly 30% of that load. If deployed at orbital altitudes, the system could decouple AI compute from terrestrial power grids and water scarcity constraints, potentially shifting where hyperscalers build training facilities and lowering the cost of model development. The bet assumes space infrastructure costs drop enough to compete with incremental grid expansion—contingent on cheap launch economics and orbital real estate becoming viable commodity markets.

theme-connected data center infrastructure thermal management hardware cooling

Jul 22

Two-Phase Cooling Could Solve AI's Overheating Problem

Source: The Register: Biting the hand that feeds

Accelsius is swapping traditional liquid cooling for refrigerant-based two-phase systems to drop temperatures by 14°C on Dell hardware. The move addresses an immediate thermal constraint on GPU density in hyperscaler datacenters. Latest-generation AI accelerators (H100s, B100s) dissipate 700+ watts per unit, making thermal management the binding constraint on rack density before power delivery or networking becomes limiting. If the approach scales beyond Dell PowerEdge systems, it could unlock another 18-24 months of density gains before architectural redesigns become necessary.