The Definitive Guide toAI Data Centers
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GuideGlossaryCommissioning

Commissioning · Cx

The structured testing (levels L1-L5) that proves a facility works correctly under load before it goes live.

Current numbers

10% / 15% / 20%German EnEfG ERF minima for in-scope new data centers by commissioning dateas of 2026-08-24 · register ↗
up to 1.6 Tb/sNVIDIA ConnectX-9 SuperNIC bandwidth (Rubin generation) — double ConnectX-8's 800 Gb/s; BlueField-4 (integrates a CX-9) ships at 800 Gb/s, double BlueField-3as of 2026 (announced) · register ↗
10–14 wkLevel-5 integrated systems testing for a liquid-cooled AI hall (vs 4–6 wk air-cooled) — the un-compressible commissioning tailas of 2026 · register ↗

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