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Report: Core i7 MacBook Pros running hot

Tests performed by PC Authority found a Core i7 MacBook Pro to be running very hot, climbing to over 100 degrees Celsius.

The magazine had a Core i7-620M based 17" MacBook Pro on their hands for testing. While putting it through their benchmark suite, they noticed that it scored lower in Photoshop tasks then expected. Suspicious that heat might be affecting their results, they propped the machine on its side and repeated the test. Performance improved.

Having booted into Windows via Boot Camp, the group ran a Dwarf Fortress test that, according to PC Authority, got the temperature up to 84ºC. They said that the bottom casing was "almost too hot to touch." When running Cinebench 11.5, the temperature climbed to 90ºC and eventually broke 100 (101ºC specifically) during a second test of Cinebench 11.5 the following day.

The magazine argues that a flaw in the machine's cooling design caused the problem. The Fujitsu LifeBook SH760, which uses the same CPU, reportedly gets no hotter than 81ºC during the Cinebench test. Note that the SH760 uses a copper heat sink that vents out of chassis, unlike the MacBook Pro.

We've not done any testing of our own, nor have we heard of this issue before. I can tell you that my 2 GHz Intel Core Duo 15" MacBook Pro gets pretty hot during World of Warcraft marathons, but that was a known issue with that older machine.

If you've got one of the 17" i7 MacBook Pros, share your anecdotal experience with heating issues below.

[Via MacNN]

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Macbook Pro

Tests performed by PC Authority found a Core i7 MacBook Pro to be running very hot, climbing to over 100 degrees Celsius. The magazine had...
 

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hdbishopjr

My i7 Mac Pro is getting to hot to touch running VMWare Fusion with some intense Windows Apps.

July 14 2010 at 1:35 PM Report abuse rate up rate down Reply
Keith Kim

I'm using the new 17" i7 Macbook pro, and it gets really hot that it could easily burn the skin when I'm playing 3D games like GTA SA and GTA IV. And as i start playing, i can hear the fan noise from 3 feet away, but still it barely cools down.

Even in normal usage ( web browsing, word processing), my Istat widget is showing CPU at 55C and GPU and 47, and both fans at 2000 rpm. I think the fan speed is not fast enough to cool my laptop down. And the heat in my left palm rest is very irritating.

May 23 2010 at 1:22 AM Report abuse rate up rate down Reply
KPO\'M

Could this be an issue with the Boot Camp drivers rather than the hardware itself? How hot does it run under OS X?

May 02 2010 at 11:27 AM Report abuse rate up rate down Reply
kimchisquad

Well I have the Mac OSX Version 10.5.8 15 inches.
My Macbook has gotten to the point where my battery completely warped and died off due to lack of ventilation. Before it had gotten hot to the point where I couldn't even touch the bottom and it would warm up an entire section of my bed if left alone. After I got a new battery I decided to prop it up for more ventilation. It hasn't gotten as hot as before, but it still burns after a while after being used.

April 30 2010 at 6:18 AM Report abuse rate up rate down Reply
Sebastian

Very happy to report:
I can NOT confirm this!
New model 15 / 2.66 i7 running this CPU test for 30minutes:
http://mac.softpedia.com/progDownload/CPUTest-Download-23539.html
temerature goes up 83 soon after start, then fans kick in and keep it between 79 and 81 for 30 minutes.
Could it be that that bootcamp is missing the fan-control?

As (always lately) those guys were just aiming for much publicity. And sorry to say: You fell for it!

April 29 2010 at 10:32 AM Report abuse rate up rate down Reply
David Maiman

Well we have a new 15" Core i7 macbook pro at home now. We had World of Warcraft running on it for hours and it is staying as cool as a cucumber. Maybe it is just the 17" or some faulty computers.

April 28 2010 at 3:53 PM Report abuse rate up rate down Reply
Brian

I had a 2nd gen 15" unibody MacBook Pro and had it replace. I was happy to hear that they were sending me the new i5 as a replacement. I got the computer in the mail and within 10 hours of use it started overheating. It got up to 180 degrees (F) and pushed the fans to 6000RPM. It continues to get hot and burn everything it touches. Thanks Apple for an awesome replacement. Maybe you'll be able to get me a working computer on the 19th replacement since 18 obviously isn't the charm. (Yes, I've had 18 full replacements of my computer, strangely enough I still love Apple products, explain that one to me)

April 27 2010 at 9:51 PM Report abuse rate up rate down Reply
Brian

I had a 2nd gen 15" unibody MacBook Pro and had it replace. I was happy to hear that they were sending me the new i5 as a replacement. I got the computer in the mail and within 10 hours of use it started overheating. It got up to 180 degrees (F) and pushed the fans to 6000RPM. It continues to get hot and burn everything it touches. Thanks Apple for an awesome replacement. Maybe you'll be able to get me a working computer on the 19th replacement since 18 obviously isn't the charm. (Yes, I've had 18 full replacements of my computer, strangely enough I still love Apple products, explain that one to me)

April 27 2010 at 9:49 PM Report abuse rate up rate down Reply
Mike

"nor have we heard of this issue before"

Seriously? EVERYBODY knows the MBP is known for not being a good "laptop".

April 27 2010 at 8:07 PM Report abuse rate up rate down Reply
Michael Kaye

well so far my MBP 17" i7 is running far cooler than my previous 15" Nov 08' MBP.

Average temperature is around 43 Celsius (previously was around 60)

Am doing the same stuff I always do and not a hint of heat. Very very pleased.

April 27 2010 at 5:16 PM Report abuse rate up rate down Reply
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