Liquid cooling in a homelab is either the thing that finally lets you run a quiet 600 W GPU under your desk or the slow-moving disaster about to short a $4,000 rig. We walk the actual thermodynamics, AIO versus custom loops, what changes when the heat is GPU-class instead of CPU-class, the failure modes that bite 24/7 hardware, and the honest cost-benefit against better airflow.
Watercooling
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Liquid-Cooling a Homelab