I still use a 2019 MacBook Pro, in 2026 I found the best way to warm it up was to use it daily and not blow the dust out of it for 7 years. After I opened it up and did that it's running a lot cooler.
For those without spacebar heating?
"This will start 6 threads that each peg your CPU... "<p>they're doing what to my CPU????
yes only writes y, not the whole word yes
How big is the risk of condensation when you bring a cold laptop inside?<p>All their spec sheets say they support up to x% _non-condensing_ humidity, which I’m guessing is about the dew point?
For years at work I've been just using Cinebench as a hand warmer on various Macbooks.
Multithreaded:<p><pre><code> seq 1 20 | xargs -Iqq -n1 -P0 yes >/dev/null</code></pre>
I just need to build our monorepo
Looking forward to the follow up: How to Quickly Cool Down Your MacBook
Just do the trick in reverse, surely?<p><pre><code> yes no > /dev/null</code></pre>
Strap a thermopile and a peltier on that bad boy
I think my last Macbook was Wisconsin-locale instead of California. Closing the lid and putting it to sleep actually caused it to heat up (until the battery died).
Alternatively, you could try compiling an Xcode project. That should do the trick as well.
I'm from California... What is this "cold" you speak of?
Or you could get a laptop that doesn't have an metal shell, like a thinkpad.
<p><pre><code> while true; do openssl speed ecdsap384 -multi 2; done</code></pre>
npm install
Needs 2019 in title, this is Intel MacBooks not Apple Silicon.
Won't work on M processors, (un)fortunately.
I recently installed an app to manually activate the fans on my MacBook Pro M1 Pro as I've never been able to trigger them over the past 4+ years. Just to check whether the fans even work (they do).
You must be using only lame languages like C or Go or Python that aren’t optimized for laptop warming during compilation. Try using a Real Language with a Real Compiler, like C++ or Rust or Swift, and build decent-sized projects using all cores.<p>(All joking aside, this is why I have a MacBook Pro. Compilation easily hits the Air’s thermal limits and the performance boost on the Pro with its fan is impressive.)
I get them going full blast in 2 minutes from cities skylines.
You could also build Chromium from source. It makes my M1 Max's fans sing.
I left my Mac Studio running at 100% CPU on all cores for 14 hours, and the case ended up noticeably warm to the touch. It <i>is</i> possible!
Try increasing to 10 cores. Works on my m3 pro.
<a href="https://xkcd.com/1172/" rel="nofollow">https://xkcd.com/1172/</a>
Honestly m1 was very cool no matter what workload you threw at it but at this point m4 max does get pretty hot even with just web browsing.
Another (more useful) option is to render an animation in Blender, or run a local LLM.
Honestly i prefer my macbook frosty
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