I removed and super clean on my MacBook Pro 15" Unibody Early 2011 I use Arctic MX-4 on both side. Test running with my Apple 27 inch screen it shut down again overheat even both fans are running, I removed bottom cover and small support to let cool air. Start again same problems I disconnect cable thunderbolt from 27” screen bottom not cover now no problem running on 15 “ screen but still felt it less heat then was too hot. Do you think that Heat Sink need Replacement could be the problem ?
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