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Apple Notebooks Apple's notebook computers including MacBook Pro, MacBook, MacBook Air, PowerBook, and iBook.

MBP Fans and Temperature


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tongrd

 
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I've seen my MBP go up to temperatures of 90C, which I'm guessing will damage the computer? Without programs running it will usually run at around 32C, with programs sometimes around 40C. I use it quite a lot for video editing and encoding, and I see it go up to 60C with large file transfers and 90C for encoding. I'm looking at using SMCFan Control to cool my MBP down. Fans are usually running at 2000rpm, though what is an acceptable temperature?

I am thinking of running it at 2000rpm for below 50C, and above 50C run at 3000 or 3500rpm, and at 80C or more 4000-5000rpm. I've also heard that running the fan at high speeds reduces its life, so the question is do fans at high speed cause more damage than a really really hot (80C +) CPU? What range of rpm should I use that won't be too damaging to the fans?
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McBie

 
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The fans in your MBP are designed by the Apple engineers to start cooling when it is required, depending on the temperature.

Fiddling around and manually controlling the fans is not advised.

When your MBP gets too hot, it will shut down automatically to prevent damage.

Cheers ... McBie

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andr3wkim

 
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Agreed. I don't know if that will void warranty or not.

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tongrd

 
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Quote:
Originally Posted by McBie View Post
The fans in your MBP are designed by the Apple engineers to start cooling when it is required, depending on the temperature.

Fiddling around and manually controlling the fans is not advised.

When your MBP gets too hot, it will shut down automatically to prevent damage.

Cheers ... McBie
So even if I'm running at 70 - 90C it's fine for the computer? It just sounds really bad considering the 'starting' temperature is 30 - 40C and I've heard 'stories' of keyboards bending from heat etc
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CrimsonRequiem

 
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It's normal for the computer to get hot when you are doing things like video encoding and opening large files.

However you shouldn't let the fans run 24/7 at full blast. Just let the computer do what it needs to do.

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