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Warm up your MacBook (2019)

47 points9 hoursz3ugma.github.io
kingjimmy7 hours ago

"This will start 6 threads that each peg your CPU... "

they're doing what to my CPU????

crest6 hours ago

Bend over for big tech!

dnnddidiej7 hours ago

For those without spacebar heating?

mrtksn6 hours ago

They broke that workflow in a recent update. Software these days is horrendous

amomchilov8 hours ago

How big is the risk of condensation when you bring a cold laptop inside?

All their spec sheets say they support up to x% _non-condensing_ humidity, which I’m guessing is about the dew point?

ericpauley6 hours ago

The uncomfortable fact about the mentioned Wisconsin winters is that inside dew point tends to be quite low.

HDBaseT7 hours ago

For years at work I've been just using Cinebench as a hand warmer on various Macbooks.

hakkoru6 hours ago

I always enjoyed using the power brick to warm up

waterhouse7 hours ago

Multithreaded:

  seq 1 20 | xargs -Iqq -n1 -P0 yes >/dev/null
jvuygbbkuurx9 hours ago

I just need to build our monorepo

Onavo8 hours ago

I think any next.js project will do the trick

reboot818 hours ago

Looking forward to the follow up: How to Quickly Cool Down Your MacBook

sunrunner8 hours ago

Just do the trick in reverse, surely?

  yes no > /dev/null
why_at7 hours ago

No you have to get the yesses back out

  cat /dev/null | yes
ge968 hours ago

Strap a thermopile and a peltier on that bad boy

jerlam5 hours ago

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).

splittydev5 hours ago

Alternatively, you could try compiling an Xcode project. That should do the trick as well.

Hobadee5 hours ago

I'm from California... What is this "cold" you speak of?

int0x295 hours ago

The Donner Party begs to differ

kristianp6 hours ago

Or you could get a laptop that doesn't have an metal shell, like a thinkpad.

Cassell6 hours ago

they often have a magnesium bottom shell

daneel_w6 hours ago

  while true; do openssl speed ecdsap384 -multi 2; done
mark2427 hours ago

npm install

Scubabear688 hours ago

Needs 2019 in title, this is Intel MacBooks not Apple Silicon.

dunham7 hours ago

I've found that Baldur's Gate 3 will warm up my apple silicon (everyday tasks do not).

Analemma_6 hours ago

Is that running on Rosetta 2? Rosetta 2 does (or did, maybe it's removed now) a fine job running x86 code on Apple Silicon, but boy was it cycle-hungry to do it.

dangus6 hours ago

Apple Silicon is not really the simultaneously silent and quiet and cool system it was in the M1 days.

If you get a MacBook Air it will get quite toasty at throttling limits. After all, it has no fan.

MacBook Pro models and Apple computers in general tend to favor quiet operation over keeping the laptop surface cool.

Many PC gaming laptops go out of their way to keep warm air off the keyboard deck with a high willingness to use fan noise to accomplish that since the assumption is that you’re resting your hands on the computer for an extended period and you have headphones on for your game anyway.

ciupicri7 hours ago

From what I've seen in a couple of videos the newest Neo crap can get to 100 degrees Celsius.

rogerrogerr7 hours ago

The target market of the "Neo crap" doesn't care and/or isn't pushing workloads that come anywhere near saturating it. It's a laptop that doesn't bend, has a decent screen, has a decent battery, and isn't full of adware.

ciupicri6 hours ago

The article was about warming up a laptop. Neo can do it too.

rogerrogerr6 hours ago

And your comment was calling it crap for some reason. We wouldn’t be having this conversation if you’d left that apparently superfluous word out of your comment.

inventor77775 hours ago

How does the Neo getting to 100°C make it crap? By that logic, aren't all older Intel/x86 chips crap? If anything, I find it impressive that a small laptop CPU can do 100°C without a problem...my i7-7700T M710qs hit 75°C and throttle within a minute if I use a tool like y-cruncher or stress-ng. To be fair, totally different purpose.

moralestapia9 hours ago

Won't work on M processors, (un)fortunately.

dajonker8 hours ago

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).

asdff5 hours ago

I get them going full blast in 2 minutes from cities skylines.

amluto7 hours ago

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.

(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.)

woozlewuzzle6 hours ago

You could also build Chromium from source. It makes my M1 Max's fans sing.

tom_5 hours ago

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 is possible!

asdff5 hours ago

Try increasing to 10 cores. Works on my m3 pro.

mjmas8 hours ago
nullbyte8 hours ago

sanest emacs user

RAZKOM8 hours ago

There really is an xkcd for everything

therein8 hours ago

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.

gpm8 hours ago

I've definitely had my m1 air get uncomfortably hot to touch - particularly right above the keyboard. (While doing developery things)

inventor77775 hours ago

Can't say I've ever thought of a word like "developery", but now that I've seen it I like it a lot :-)

1e1a8 hours ago

Another (more useful) option is to render an animation in Blender, or run a local LLM.

ale9 hours ago

Honestly i prefer my macbook frosty

tithos6 hours ago

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