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This thing gets hot fast!

cairene2011 said:
I didn't mean for it to be the solution of your problem. I just wanted to narrow down the possible causes for the heat! :)
Click to expand...

5 minute video test exporting in iMovie with screen at lowest brightness, still got hot. Screen shuts off after 1 minute anyways so its not the screen, its the processor.
 
just got mine and tested a little bit.

tasks:
downloading apps from MAS
dropbox indexing ~30g file,
installing software via brewcask
playing youtube 1080p video (yes I'm bored waiting)


and i used a digital thermometer bought from CVS, tested surface temperature, the bottom is the hottest, ~41C. keyboard around 33C screen 26C

again, it's just a thermometer from CVS, its not that accurate (but it does have a surface temperature mode), but you can get a feel how hot it is.
 
Queen6 said:
Try Intel Power Gadget it will give you CPU core temp and more importantly frequency and power draw.

https://software.intel.com/en-us/articles/intel-power-gadget-20

You will have to see if it works with the new Core M, you can also set the app to log the data.

Or try this thread if you want more technical detail on the Notebooks potential for throttling or overheating.

https://forums.macrumors.com/threads/1731178/

Q-6
Click to expand...

Thanks. Power Gadget works, running some tests now.
 
Ok so ran another 5 minute video export in iMovie at the default medium 1920x1080 setting, 510MB file. Display at max brightness and I forced it to stay on the entire time rather than sleeping. The temp ran between 84-87 C the entire time with a max of 88.20 that I got a screenshot of here. The next screenshot is from about 10 seconds after it finished exporting. As you can see, temps come back down very quickly. Now the question is how much heat can the internals sustain without causing problems? Can it run at those max temps for hours at a time without doing damage?
 

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dexterbell said:
Ok so ran another 5 minute video export in iMovie at the default medium 1920x1080 setting, 510MB file. Display at max brightness and I forced it to stay on the entire time rather than sleeping. The temp ran between 84-87 C the entire time with a max of 88.20 that I got a screenshot of here. The next screenshot is from about 10 seconds after it finished exporting. As you can see, temps come back down very quickly. Now the question is how much heat can the internals sustain without causing problems? Can it run at those max temps for hours at a time without doing damage?
Click to expand...

Thank you very much for posting that.

On temps, I fairly often see 82-83 degrees C on my 13" late 2013 rMPB. I don't _like_ seeing those temps, but it has never hurt it and I've googled that to see if anyone thinks that's a problem - no one seems to. My strong guess is that Apple has designed the rMBP to be ok at temps in the range you're seeing. As you noted, it's very surprising how quickly the temps come down - much faster than with my rMBP even with the fans forced to high.

I've never paid attention to specific time periods, so I don't know and don't want to guess about the answer to how long it can do that without damage.
 
matt2053 said:
I have a base 1.1.

My CPU has been maxed for the past 45 minutes while I install and sync dropbox and upload photos.

Bottom is warm. Speaker grill area and keyboard are very slightly warm. Barely noticeable.

No problem here, quite pleased with the temp.
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I have downloaded and synced GB's of photos on my Air and the CPU does not MAX. DOes not come close to it.
 
I got mine around 10:30am. And have set it up, updated to 10.10.3 and am now currently using iCloud Photo Library to download my photos. I have over 9000 photos and 300 videos to download. CPU running around 60%-75% and Temp from 160F-175F. I want to restart my rMB after it's done downloading because I am having some bugs with the settings. If I try setting the dock to hide it won't come back. Hopefully the issues I am having will be fixed after a restart.
 
dexterbell said:
Ok so ran another 5 minute video export in iMovie at the default medium 1920x1080 setting, 510MB file. Display at max brightness and I forced it to stay on the entire time rather than sleeping. The temp ran between 84-87 C the entire time with a max of 88.20 that I got a screenshot of here. The next screenshot is from about 10 seconds after it finished exporting. As you can see, temps come back down very quickly. Now the question is how much heat can the internals sustain without causing problems? Can it run at those max temps for hours at a time without doing damage?
Click to expand...

Will not be a problem. I have had my Quad Core MPBr`s running for days at higher temps and they have never had issue, now or in the past. As the MackBook relies on passive cooling the worst I can envisage happening is the Notebook may be a little more prone to heating over extended time periods which may induce throttling and the unibody will be warm to the touch.

You will need to push the MacBook harder if you want to see how it deals with heavy loads and if it throttles. Handbrake is a good representative test of real world heavy usage, convert an MKV to MP4 will run the CPU hard.

Q-6
 
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Queen6 said:
Will not be a problem. I have had my Quad Core MPBr`s running for days at higher temps and they have never had issue, now or in the past. As the MackBook relies on passive cooling the worst I can envisage happening is the Notebook may be a little more prone to heating over extended time periods which may induce throttling and the unibody will be warm to the touch.

Q-6
Click to expand...

Can't really compare a larger chip in a larger case with fans to cool it down. This is a first for Apple.

----------
Meister said:
wtf?!
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Yes, when laying in bed or even watching tv on the couch, I'll rest my laptop on my chest while using it. Lap is too far away for such a small screen IMO. Interestingly, seems to run about 5 degrees warmer when holding it like that vs it sitting on my table.
 
dexterbell said:
Can't really compare a larger chip in a larger case with fans to cool it down. This is a first for Apple.
Click to expand...

Same principle, CPU will throttle or worst case shutdown, remember we are only dealing with a very low TDP here. See for yourself just queue up a bunch of MKV`s in Handbrake, likely most will happen is the CPU will drop out of Turbo due to the temp. Personally I think it will fair better just dropping the frequency to around 1.8Ghz

Q-6
 
danielwerner said:
Should I be worried with stuttering and high heat when playing (streaming) 1080p-video or playing SNES9x (an emulator for Super Nintendo games)?
Click to expand...

I'm going to stream some 1080 video full screen and see what the temps are like once my MacBook charges a bit. I've been flogging it haha
 
danielwerner said:
Should I be worried with stuttering and high heat when playing (streaming) 1080p-video or playing SNES9x (an emulator for Super Nintendo games)?
Click to expand...

You would need to understand why it`s stuttering first; poor connectivity or CPU throttling, Intel`s Power Gadget can help with that. Large video files with high bit rates can load up lower powered devices, especially if all decoding is done by the CPU, hardware decoding being the more preferable route.

Q-6
 
What is the exact problem now anyway? Is it that the case gets too warm for you or that you think the cpu can't handle the 88°C? if it is the cpu you are worried about then there is no need. The threshold is higher than that and it will not damage the cpu. Apple and the other manufacturers can choose a target temperature after which the CPU will start to reduce the clockspeed. For example the Core-M from Asus is set to 90°C. This doesn't mean that the cpu can't take more than that target value but you want to give yourself some room to breath so no manufacturer will set it to max ofc. Seeing your cpu temps it seems that Apple also went for about 90°C.

Anandtech measured 41-43°C at the Front/Backside of the case and someone here posted similar results. So there is no need to for you to worry.
 
Souli said:
What is the exact problem now anyway? Is it that the case gets too warm for you or that you think the cpu can't handle the 88°C? if it is the cpu you are worried about then there is no need. The threshold is higher than that and it will not damage the cpu. Apple and the other manufacturers can choose a target temperature after which the CPU will start to reduce the clockspeed. For example the Core-M from Asus is set to 90°C. This doesn't mean that the cpu can't take more than that target value but you want to give yourself some room to breath so no manufacturer will set it to max ofc. Seeing your cpu temps it seems that Apple also went for about 90°C.

Anandtech measured 41-43°C at the Front/Backside of the case and someone here posted similar results. So there is no need to for you to worry.
Click to expand...

A little of both! Yea, when just web browsing I was averaging between 40-44C. It wasn't until I started playing with iMovie that it starts to warm up. Im still going to do a 1080p streaming test at full screen and see what the temps do.
 
Well then you only got a problem that is no problem at all ;) It may appear quite high for you but CPUs are quite fine at the temperatures you are getting. So nothing to worry about. You can run all the streaming tests you want and the cpu will get as warm as the threshold is set (which appears to be somewhere around 90 like the Asus). You should actually be happy that the threshold is that high or the Core-M would start to run at lower clocks way earlier and you get worse performance that way.
 
Souli said:
Well then you only got a problem that is no problem at all ;) It may appear quite high for you but CPUs are quite fine at the temperatures you are getting. So nothing to worry about. You can run all the streaming tests you want and the cpu will get as warm as the threshold is set (which appears to be somewhere around 90 like the Asus). You should actually be happy that the threshold is that high or the Core-M would start to run at lower clocks way earlier and you get worse performance that way.
Click to expand...

Good to know. Seems the 1.2GHz doesn't get as hot and as was covered earlier, its most likely because its not maxed out at 6W like the 1.1 is.
 
It will have the same thermal threshold as well. If you push it to max it will start to run at lower speeds when it gets hotter. The principle is the same regardless of the CPU or if it runs at 5W/6W.
You could get a bit more breathing room with the 1.2 maybe (though the turbo is higher so you generate more heat there) but without reviews from those machines nobody can tell. For that you need a side to side comparison while doing the exact same tasks and watch the temperature and the clock speed of the CPUs. You can't compare it just from the 2 guys that posted here since the tasks they did and the things you did are not the same.
 
danielwerner said:
Should I be worried with stuttering and high heat when playing (streaming) 1080p-video or playing SNES9x (an emulator for Super Nintendo games)?
Click to expand...

One of my concerns about getting the MBR vs my 2015 MBPR. I wanted to dabble in some less demanding source games like CSGO, Hearthstone and Emulators for SNES and N64, dat Ocarina Of Time Zelda tho. Ahhh the memories :
 
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I posted it in another thread, but just in case people are subscribed here...

Also omitted from our table above: the maximum junction temperature, which is the hottest the CPU silicon is allowed to run before throttling. That temperature is 95°C for all three Core M models, down from 100°C for Haswell-Y. Mobile chips like these are usually expected to bump up against their thermal maximums, especially in fanless configs.

http://techreport.com/news/27015/intel-reveals-core-m-specs-performance
 
dexterbell said:
A little of both! Yea, when just web browsing I was averaging between 40-44C. It wasn't until I started playing with iMovie that it starts to warm up. Im still going to do a 1080p streaming test at full screen and see what the temps do.
Click to expand...

Was it whilst exporting that it started to get warm or was it already warming up a good deal when you were just 'playing', composing, editing in iMovie.
It's ok for me when exporting. I can do that at night or on my desk but I'll use it on my lap ( not my chest...) quite a bit when 'playing' in iMovie.
 
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