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You are here: MacNN Forums > Hardware - Troubleshooting and Discussion > Mac Notebooks > MBP temperature

View Poll Results: MBP temperature at 100% cpu load (celsius)
Poll Options:
less than 55 2 votes (5.13%)
56-60 4 votes (10.26%)
61-65 2 votes (5.13%)
66-70 3 votes (7.69%)
71-75 6 votes (15.38%)
76-80 12 votes (30.77%)
81-85 8 votes (20.51%)
86 or more 2 votes (5.13%)
Voters: 39. You may not vote on this poll
MBP temperature
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westykid
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May 17, 2006, 10:56 AM
 
Just wanted to know how hot does your MBP runs. Here's the standard, MBP running at 100% cpu load for both core using Systemload

http://www.bresink.de/osx/SystemLoad.html

or "yes > /dev/null" on 2 Terminal windows

Run for about 10 minutes and read the temperature using CoreDuoTemp

http://macbricol.free.fr/coreduotemp/

then post your result here.
     
phantomo
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May 17, 2006, 11:06 AM
 
I am getting between 81-85. If the new MacBook 2GHz is cooler than my MBP, Apple has to response.
15"MBP/C2D2.4GHz/4GB RAM/320GB HD
15"MBP/C2D2.16GHz/3GB RAM/250GB HD
12"PB/1GHz/768MB/60GB/SuperDrive/AE
iPhone 8GB/iPod video 30GB
     
harrisjamieh
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May 17, 2006, 11:53 AM
 
Is that oC or oF? I remember my iBook went up to about 45 oC on a very hot day, and i thought that was hot!! my Intel iMac runs at about a constand 50 oC. Those MBPs are roastin'!
iMac Core Duo 1.83 Ghz | 1.25GB RAM | 160HD, MacBook Core Duo 1.83 Ghz | 13.3" | 60HD | 1.0GB RAM
     
Voch
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May 17, 2006, 01:56 PM
 
My non-Pro MacBook 2Ghz got up to 82 degrees C and then I actually heard the fan (it's fairly quiet and blows air out the back towards the screen hinge). I even had it plugged into AC power. The bottom left of the machine got pretty warm but not hot (not as bad as my TiBook 667/DVI gets). To get this result I had to run SystemLoad *twice* as the "top" command only showed one core getting excercised for some reason.

The MacBook absolutely freakin' rocks! If I ever load it up that much I'll have no problem putting it on my Podium CoolPad while it chugs away.

Voch
( Last edited by Voch; May 17, 2006 at 02:03 PM. )
     
tassos52
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May 17, 2006, 02:47 PM
 
Is a hardware repair the only possible solution to the heat and whine issues (i.e.,
send it back to Apple and ask them to repair) or could these issues
be solved through software ?
     
westykid  (op)
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May 17, 2006, 03:15 PM
 
Originally Posted by harrisjamieh
Is that oC or oF? I remember my iBook went up to about 45 oC on a very hot day, and i thought that was hot!! my Intel iMac runs at about a constand 50 oC. Those MBPs are roastin'!
Celsius. oC. Yeah, MBP is killing my mother's future grandson/daughter...... Wonder how much I'll get if I sue apple 20 years from now.
     
Simon
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May 17, 2006, 03:43 PM
 
Of course such a measurement depends on the ambient temperature. If you do it in Greenland the results will differ from those you get in southern California.
     
westykid  (op)
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May 17, 2006, 04:42 PM
 
Originally Posted by Simon
Of course such a measurement depends on the ambient temperature. If you do it in Greenland the results will differ from those you get in southern California.
I doubt how much it would really differe though. I mean most people work in room temperature condition, hardly anyone would choose to work in the snow or baking in the sun. Plus the heat flow from the cpu is constant when loaded, so it can maintain a stable temperature.
     
buddy1065
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May 19, 2006, 10:58 AM
 
By the way, did you know Apple warns you about heat in the manual?
If you scroll to page 106, under "Using Your MacBook Pro", Apple recommends, and I quote "Do not leave the bottom of your MacBook Pro in contact with your lap or any surface of your body for extended periods. Prolonged contact with your body could cause discomfort and potentially a burn"

So evidently they were aware of the heat problem even before shipping the MBP, yes? Perhaps they should have put the warning on the exterior of the box, like cigarrette companies now do.

"The Surgeon General has determined that using a Macbook Pro on your lap can result in extreme discomfort, burns and the inability to procreate; the direct result of a french fried willy."
( Last edited by buddy1065; May 19, 2006 at 11:16 AM. )
     
cambro
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May 19, 2006, 12:15 PM
 
I've never really noticed excessive heat in my 1.83 MBP (W8611), 1.5 Gig RAM.

After running the test in a rather cool room (about 68 F) on a formica topped desk with the power adapter plugged in, Airport on, and several apps running, my CPU temp never got above 40 degrees C.

Overall, I find my MBP to be very low temp even when being used rather heavily and I've only heard the fan go on when resting it on a soft surface (don't do this!).
     
westykid  (op)
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May 19, 2006, 04:30 PM
 
Well, you should consider yourself very lucky then. Most people have their MBP up at 60+ celsius on normal running temperature, including me. And my MBP is W8613 version.
     
OreoCookie
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May 19, 2006, 05:27 PM
 
More importantly, what are you non-load temperatures? Mine is 70+ °C (1.5 GHz, under a load of roughly 30-40 %)!

(Mine is a W8611 if that makes any difference.)
I don't suffer from insanity, I enjoy every minute of it.
     
stebert7837
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May 19, 2006, 06:31 PM
 
( Last edited by ivc; May 20, 2006 at 02:59 PM. )
     
skyman
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May 19, 2006, 10:50 PM
 
I ran system load before doing the firmware update and I could just barely hear the fans running and the system was HOT HOT HOT.

Next, I did the firmware update, ran system load and the fans finally came on. The system is not nearly as HOT as before the update, BUT still HOT.

Now for the interesting part of the story. I installed another 512 MB of RAM for a total of 1.5 Gig. Ran system load and every other application. The fans came on but the system never got HOT.

Adding the additional 512MB of RAM made the most difference. Go figure.

Now my system runs faster and much cooler.

But alas the whine is still there!!!!!
MacBookPro 1.83GHz - 1.5 GB RAM - OS 10.4.6
     
n8236
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May 20, 2006, 03:25 AM
 
Suggestion: The temps below 60 @ full load should have also asked if the notebook has been modded or not.
     
buddy1065
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May 20, 2006, 02:34 PM
 
Interesting Skyman. Wonder if you removed the RAM would the heat return. That would prove positive it is the extra RAM and not just a reboot result or some other fluke. Is it a 15"?
     
Cadaver
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May 20, 2006, 03:01 PM
 
Mine run between 73° - 77° under full load.
(2.16GHz, 7200RPM HD, W8612 serial # prefix).

~55°C at idle.
     
skyman
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May 20, 2006, 03:10 PM
 
Originally Posted by buddy1065
Interesting Skyman. Wonder if you removed the RAM would the heat return. That would prove positive it is the extra RAM and not just a reboot result or some other fluke. Is it a 15"?
Good question about the reboot.

Yes it is a 15" MBP.

I will run some more tests.

For now, I can state that my MBP is running "noticeably" cooler (about 10 to 15 Deg F).

The additional 512 RAM has made a noticeable difference in speed. I am running a lot of non UB apps (Office, PS, GoLive etc) so the additional RAM has made a difference.
MacBookPro 1.83GHz - 1.5 GB RAM - OS 10.4.6
     
fowler
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May 25, 2006, 10:17 PM
 
I should have checked my temps before hand, but i swear that since I added an extra stick of ram, my computer is a hell of a lot hotter. Plus I hear the fans kick on more often. What the dilly yo?
[font=verdana]2.16 macbook pro | 2gb | 7200 rpm | 2405FPW[/font]
     
   
 
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