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Equation 2 · AI Datacenter Power and Cooling: A First-Principles Introduction

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q′′q''

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qq

Symbol q

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with q'' expressed in watts per square centimetre. Doubling a chip’s power without changing its package size doubles q'' , and every downstream cooling decision in this article follows from trying to hold q'' within what a given cooling medium can actually carry away from that specific surface before the silicon beneath it exceeds its rated temperature.

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