Home-running H100-class GPUs is fantasy: 3-phase 80A, jet-engine noise, mortgage-sized power bills
TheZachMueller · x · 2026-10-25
In a thread on how people expect to run H100–B300s ahead of an impending supply glut, TheZachMueller shows his home rig: well-spaced RTX 6000 cards, each under its own fan. He argues datacenter-class cards are impractical at home — a node needs a 3-phase 80A circuit, sounds like a 24/7 jet engine, and even at $0 value its monthly power draw approaches a mortgage payment. Workstation cards win on power, noise and practicality despite the ugly footprint.
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