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This thing gets hot fast!

I just let a 1080p video stream for 15 minutes. (1.2 gHz / 512 GB version.) The hottest the CPU got was 45 degrees C, which I wouldn't say is hot at all. The bottom of the case was mildly warm, but only a little noticeable, certainly not hot. FWIW...
 
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This thing gets hot fast!

newellj said:
I just let a 1080p video stream for 15 minutes. The hottest the CPU got was 45 degrees C, which I wouldn't say is hot at all. The bottom of the case was mildly warm, but only a little noticeable, certainly not hot. FWIW...
Click to expand...


Base model?

Edit: never mind. Glanced at your signature. 1.2
 
ryanide said:
Basic web use for about an hour and it's not even warm, actually still feels a bit cold.

Yesterday, after several hours installing software and doing initial configurations, it was warm but not hot to the touch.

Maybe the 1.1 runs hotter, but this baby is fine.
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Thats interesting. I can't imagine .1GHz making that much of a difference though. Mine was getting warm again last night just laying in bed with it laying on my chest and all I was doing was browsing websites, not even doing video. Have you tried streaming 1080p video full screen? Try that for half an hour or try exporting a 10-15 minute 1080p video in iMovie and let us know if it gets hot.

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newellj said:
I just let a 1080p video stream for 15 minutes. (1.2 gHz / 512 GB version.) The hottest the CPU got was 45 degrees C, which I wouldn't say is hot at all. The bottom of the case was mildly warm, but only a little noticeable, certainly not hot. FWIW...
Click to expand...

You are the second person with a 1.2 to say something similar. The 1.2 isn't running as warm then, interesting. How do you know the exact temp it was? Is there a program?
 
That the 1.2 runs cooler could be because Apple had to overclock the 5y31 to it's max to reach 1.1Ghz which consumes 6W. The 5Y51 from 1.1 to 1.2Ghz is not at max clock speed and not at the 6W limit but rather somewhere between 5-5.5W. (max is 1.3Ghz at 6W for the 5Y51). That is my theory at least.
 
Souli said:
That the 1.2 runs cooler could be because Apple had to overclock the 5y31 to it's max to reach 1.1Ghz which consumes 6W. The 5Y51 from 1.1 to 1.2Ghz is not at max clock speed and not at the 6W limit but rather somewhere between 5-5.5W. (max is 1.3Ghz at 6W for the 5Y51). That is my theory at least.
Click to expand...

You are correct, you may be on to something here.
 
Souli said:
That the 1.2 runs cooler could be because Apple had to overclock the 5y31 to it's max to reach 1.1Ghz which consumes 6W. The 5Y51 from 1.1 to 1.2Ghz is not at max clock speed and not at the 6W limit but rather somewhere between 5-5.5W. (max is 1.3Ghz at 6W for the 5Y51). That is my theory at least.
Click to expand...


Would you be able to make an educated guess involving the 1.3 based on this information and the Anandtech article?
I promise I won't hold you to it ;)
 
tecnho said:
Would you be able to make an educated guess involving the 1.3 based on this information and the Anandtech article?
I promise I won't hold you to it ;)
Click to expand...

Its the same thing as the 1.2, 1.3 is not its max. 1.4 at 6W is its max, so it should probably run cooler than the 1.1 does as well.

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driftless said:
Any 1.3 users?
Click to expand...

None have even shipped yet.
 
teerexx52 said:
I have a base model gold with istats 5 installed. Surfing the next it is running about 110 degrees F. Seems fine so far
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How are you taking the temp? It doesn't really start to heat up until you start streaming full screen video or exporting videos in iMovie.
 
tecnho said:
Would you be able to make an educated guess involving the 1.3 based on this information and the Anandtech article?
I promise I won't hold you to it ;)
Click to expand...

The situation is exactly the same as with the 5Y51. The 5Y71 starts at 1.2 and 1.4 is max so you right in the middle again at 1.3 with 5-5.5W.
 
dexterbell said:
How are you taking the temp? It doesn't really start to heat up until you start streaming full screen video or exporting videos in iMovie.
Click to expand...

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
 
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dexterbell said:
Thats interesting. I can't imagine .1GHz making that much of a difference though. Mine was getting warm again last night just laying in bed with it laying on my chest and all I was doing was browsing websites, not even doing video. Have you tried streaming 1080p video full screen? Try that for half an hour or try exporting a 10-15 minute 1080p video in iMovie and let us know if it gets hot.

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You are the second person with a 1.2 to say something similar. The 1.2 isn't running as warm then, interesting. How do you know the exact temp it was? Is there a program?
Click to expand...

Running iStat Menus and the Intel Power Gadget.

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mattopotamus said:
50-60 celcius.
Click to expand...

As a follow up, I have seen very short spikes to about 60 degrees C. The temps come down very, very fast, but I haven't tried doing something like a time-consuming (10 minutes or more) Lightroom export or a Handbrake encode job.
 
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.
 
Can you try to do the streaming/iMovie rendering etc with lowest brightness? I made the experience that both my iPad minis with Retina display get incredibly hot under almost no workload as long as the screen brightness is over 50%. If I keep it down at like 25%, I can stream and game as much as I like, it gets barely warm.

Would be interesting if the culprit in the rMB is also the retina display?
 
cairene2011 said:
Can you try to do the streaming/iMovie rendering etc with lowest brightness? I made the experience that both my iPad minis with Retina display get incredibly hot under almost no workload as long as the screen brightness is over 50%. If I keep it down at like 25%, I can stream and game as much as I like, it gets barely warm.

Would be interesting if the culprit in the rMB is also the retina display?
Click to expand...

I could but why would anyone want to watch a streaming movie on a display at the lowest brightness? I have my brightness all the way up. I'll try an iMovie export at low brightness
 
dexterbell said:
I could but why would anyone want to watch a streaming movie on a display at the lowest brightness? I have my brightness all the way up. I'll try an iMovie export at low brightness
Click to expand...

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! :)
 
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