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Faint lines on cpu chip

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Last response: in CPUs
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November 25, 2012 8:20:22 AM

Hello,

is it normal to have faint outlines of a square shape on the back of the cpu?

i3570k (costa rica)
Sealed boxed set with dirty booklet inside.

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November 25, 2012 8:37:20 AM

Hmmmmmmm ! that's a bit strange. Is it really a sealed box ? Don't tell me you purchased it off eBay :) 

The square shape tells you it has been used. Its as simple as that. Heat cycles through thermal paste between integrated CPU cooler and Heat Sink creates that square.

Definitely a used CPU.
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