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2.0GHz, 2.3GHz, or 2.6GHz quad-core Intel Core i7 processor (Turbo Boost up to 3.8GHz) with 6MB shared L3 cache.

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What is the line of foam under the vents and thunderbolt 2 port for?

I opened my Late 2013 MacBook Pro yesterday for the first time and brushed the internals with a toothbrush. I noticed some build up on the thunderbolt 2 ports and scrubbed it, only to realize they’re actually some kind of lining similar to that spongy foam under the vents.

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So I accidentally destroyed that lining, and to be fair it was already dry and brittle probably due to heat and age, and I know it probably isn’t crucial to the device’s operation, but does anyone know what is it for? Is there anyway I could get a replacement?

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The plated open cell foam is used to control EMI emissions from the system outward. Its used to bond the logic board ground to the bottom lid.

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2 Comments:

thanks for the quick response! Sorry but in layman terms would there be any for concern if I don't replace it?

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You'll be fine!

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Wei Jian will be eternally grateful.
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