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Swapped thermal paste on a 2012 MacBook Pro, huge difference

Had a customer in Austin with a laptop hitting 105C just opening Chrome. Used Arctic MX-4 after trying some cheap generic paste, temps dropped to 78C under load. Anyone else seen that much spread between pastes, or was the old stuff just baked solid?
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2 Comments
oscarwright
105C is insane, that old paste was probably powder by then. I've seen MX-4 drop temps like that too, mostly when the factory stuff was cooked for years.
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thomas862
thomas86212d ago
Wow, that's wild. Did you check what kind of paste was in there before you swapped it, or was it just completely crusted over? @oscarwright mentioned the powder thing, and I've had that happen on older MacBooks too, but 27 degrees is a pretty massive swing even for that. Curious if the heat sink was also loose or if it was really just the paste itself.
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