MacBooks forum

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MacBook Pro 13 runs hot?

by jennywren1420 / January 19, 2010 9:14 AM PST

I was reading reviews of the MacBook Pro 13" less-expensive version, and several of the people who owned it said that it gets extremely hot on the bottom. No similar complaints for the higher-priced one. Does anyone here know about that? It was not just a couple of people, but quite a few.

I'd really like to know whether this is a widespread problem or just the bad luck of some MacBook Pro 13" owners. If it's very common, I think I'll just go with the pricier one, but I haven't decided yet.



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I have looked into the issue
by rnauth1418 / January 20, 2010 5:14 AM PST

The plastic macbooks do not disperse heat through the case the same way the aluminum MBPs do. As such, the bottom of the Macbook has more concentrated heat, whereas heat is distributed across the bottom of the MBP.

Nothing to be too concerned about. the hardware integrity is not compromised.

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Thanks, but
by jennywren1420 / January 20, 2010 7:29 AM PST

I really was not thinking about the White MacBook (or any other MacBook, though that seems to be the only one still available, except on eBay). I wanted to find out whether any owner here of the 2.26 GHZ MacBook Pro 13" had found the bottom hot and whether anyone knew of a difference in that regard between the two MacBook Pro 13 models. Some reviews by owners of the one with 2.26 GHz complained that the bottom of the case got very hot, but no review from anyone who had the 2.53 GHz one mentioned hot spots. Maybe it was something in the models themselves; maybe it was pure bad luck on the part of those whose computers grew hot. I don't know.

It is quite possible that the problem has been solved by now, but that and the larger HD and greater options for increasing the RAM at some point might argue for my getting the more expensive machine. I won't be getting either one until this spring (probably, early April), or later, so getting the answer is not a matter of immediate need.

Thanks again. I appreciate your having made the effort to get in touch with me.

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by rnauth1418 / January 20, 2010 10:44 PM PST
In reply to: Thanks, but

I dont know why I saw Macbook pro and Only thought Macbook, but I can tell you from first hand experience ( I recently bought my sister a 2.26 Ghz Macbook Pro, and I often work with the 2.53 Ghz model at work) that they run almost exactly the same temperature wise. Now, that being said, under strenuous work loads they both get pretty hot. I use both macs on a desk so under these conditions the computers operate (temperature wise) exactly the same.

Under further research though, I did notice something interesting about the MBP chipset architecture. To illustrate I will use an example:

Safari 3.1 running on both the MBP 2.26, and the MBP 2.53.
Safari uses (lets say) 2,000 processes to run on any machine. For arguments sake let us say this requires only a 1.0 Ghz processor to work. In this situation we are using 44% of the MBP 2.26 processor power and 39 % of the MBP 2.53. As such, you will be stressing the processor more proportionally by using a 2.26 ghz processor. ( I know this is a very rudimentary analysis but it serves the purpose)
Because of this the 2.26 might run slightly hotter. It should not be a significant difference though. So the temperature of the models should not influence your decision much...

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