Some MacBook Vents Blocked, Causing Heat Issues? Thermal Paste? [Updated] - MacRumors
Skip to Content

Some MacBook Vents Blocked, Causing Heat Issues? Thermal Paste? [Updated]

The mac web has taken note of an observant MacBook owner who found at least part of the reason why his MacBook was running so hot. Apparently, some MacBooks are shipping with the rear vent (between the base and the screen hinge) blocked by a piece of plastic. Removing the plastic allowed air to circulate correctly and lowered operating temperatures dramatically.

While some users report having found the plastic, others report not finding the plastic, so mileage may vary.

Meanwhile, due to the controversy surrounding the excess Thermal Paste, MacDevCenter disassembled their MacBook Pro to see if reducing the Thermal Paste would indeed cause a significant change in the running temperature. Contrary to other anecdotal reports, they found there was only a 2 degree difference in temperatures before and after the extensive disassembly.

Related Forum: MacBook Neo

Popular Stories

macbook ultra

'MacBook Ultra' Coming Soon With These 12 New Features

Friday July 24, 2026 6:00 pm PDT by
Apple's first high-end MacBook redesign in five years is expected to arrive in the near future, bringing a run of firsts to the Mac. Bloomberg's Mark Gurman expects the laptop to arrive between late 2026 and early 2027, with the later window now looking more likely owing to the global memory chip shortage. Analyst Ming-Chi Kuo expects mass production to begin by late 2026. Apple last...
iPhone 18 Pro Deep Red Feature

iPhone 18 Pro Launching in Two Months With These 12 New Features

Friday July 24, 2026 7:26 pm PDT by
It is now late July, and that means the iPhone 18 Pro and iPhone 18 Pro Max are less than two months away. The devices are expected to look similar to the iPhone 17 Pro and iPhone 17 Pro Max, but there will still be many year-over-year changes, with rumored features including a smaller Dynamic Island, 5G via satellite, and more. Apple is expected to unveil the iPhone 18 Pro, iPhone 18 Pro...
5 Reasons to Buy the iPhone 17 Now Feature

5 Reasons to Buy the iPhone 17 Now Instead of Waiting for iPhone 18

Thursday July 23, 2026 8:26 am PDT by
Apple's iPhone 18 Pro models and its first foldable are less than two months from being unveiled. That may sound like a reason to sit tight if you're looking to upgrade from an iPhone 16 or older series, but between looming price hikes and Apple's new split-launch calendar, there's a decent case for grabbing an iPhone 17 series model right now. Here are five reasons in favor of putting your order ...

Top Rated Comments

thejadedmonkey Avatar
263 months ago
Update: Meanwhile, despite the controversy surrounding the excess Thermal Paste, MacDevCenter disassembled their MacBook Pro to see if reducing the Thermal Paste would indeed cause a significant change in the running temperature. Contrary to other anecdotal reports, they found there was only a 2 degree difference in temperatures before and after the extensive disassembly.
So in conclusion, MacBooks just run hot....sorta like how my car's temp guage gets into the red when it's idiling on the freeway while I'm stuck in a traffic jam, the only difference being that MacBooks aren't supposed to come off as 14 year old pieces of crap

Seriously Apple, I sure hope you get all these heat/moo/whine/display issues figured out before I start looking to get a MacBook (pro) once Leapord is out.
Score: 1 Votes (Like | Disagree)