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Equation 13 · Part 1 · The Physical Plant: Power, Cooling, and Networks in an AI Datacenter

Symbol E_IT

EITE_{\mathrm{IT}}
EITE_{\mathrm{IT}}

What this part means

EIE_IT is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.

Its job in the formula

EIE_IT is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.

The passage around this formula

Three failure modes follow directly from the algebra, and they are analysis rather than sourced claim. One: moving a cooling function inside the IT boundary improves PUE. Server fans are counted in EITE_{\mathrm{IT}} ; a room that pushes 15% of rack power through fans reports a better PUE than one that removes the same heat with facility pumps, while consuming more total energy for the same computation. Two: PUE is a ratio, so it improves when the denominator grows. A hall running its…

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A subscript is a label attached below a symbol. It often selects a time step, component, category, or member of a sequence.

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Sources cited in the article section

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