How many fans does a MacBook have?

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How many fans does a MacBook have?

I just received my MacBook 2.0GHz with 2 GB ram a couple of days ago.

I installed smcFanControl and see that only one fan is operating (the other fan is shaded out - cannot be manipulated). Fan #2 always reads 0 rpm.

In the faq of the program, a 0 rpm fan reading may indicate a dead fan.

Can anyone confirm how many fans my MacBook should have?

MacBook White 2.0GHz 2GB Mac OS X (10.4.8)

Posted on Nov 24, 2006 7:33 AM

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Answer 1

Best reply

zplus

Level 2

230 points

Nov 24, 2006 7:33 AM in response to Duofold

1
and if you want to double check on that, go to www.ifixit.com and take a look.

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Answer 2

Duofold Author

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Nov 24, 2006 7:45 AM in response to zplus

Thanks for your help. For most light tasks, my MacBook is running fine, at good temp and without screen flicker.

Only concern now is why, when running Bejeweled 2, the fan kicks in and loud?

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Answer 3

Nov 24, 2006 8:02 AM in response to Duofold

There's a good possibility that the game is a PowerPC application which uses Rosetta to translate it into code that the Intel Processor in the MB can understand. This usually requires processor intensive processes which generate heat causing the MB fan to kick-in to keep it under control.. Have you updated to all the latest firmwares?

EDITED: Just checked, Bejeweled 2 is a PowerPC app which is not native to Intel processors and require Rosetta to run.

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Answer 4

Dr.Lolly

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Nov 24, 2006 9:34 AM in response to Duofold

i'm a fan ;o)

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Answer 5

Duofold Author

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Nov 24, 2006 9:43 AM in response to cnorgangrad

That helps a lot. Now if I can sidestep these Rosetta apps...sounds like my MacBook is kicking in the afterburners.

BTW...where did you see on Popcap's website that Bejeweled 2 is a Rosetta app? I could only find under system requirements that the G4 or G5 is required to play.

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Answer 6

Nov 24, 2006 9:55 AM in response to Duofold

That pretty much means that it is written for PowerPC, and therefore has to run under Rosetta. If it were able to run natively on Intel, it would have that as a processor requirement or would have the Universal icon.

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Answer 7

Nov 24, 2006 11:19 AM in response to Duofold

To see if an application is universal or PPC, you can go in "About this mac" clic the more info icon then select "Applications" and the information is under "type".

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Answer 8

Duofold Author

Level 1

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Nov 24, 2006 11:28 AM in response to Praeliber

Beautiful - this is exactly what I was hoping for.

I will remember this tip & help pass it on, thanks to you.

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Answer 9

ravin

Level 1

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Nov 25, 2006 7:43 PM in response to Duofold

hey guys, i am ravi i recently bought macbook and i had few troubles with macbook, like my mac running really hot underneath, is there any problem with my laptop. hey guys one more, how can we check whether fans are working or not.
waiting for ur reply. thank you.

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Answer 10

Nov 30, 2006 8:58 AM in response to Duofold

Same here...installed the software and fan no#2 is 0. You would think that the author of the software would know that there is only one fan in the Macbook...kind of shakes my confidence in his software product.

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Answer 11

JoeyR

Level 6

8,305 points

Nov 30, 2006 9:07 AM in response to Susan Dennis

There are two fans in the MacBook Pro.

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Answer 12

Nov 30, 2006 11:57 AM in response to Susan Dennis

You would think that the author of the software would know that there is only
one fan in the Macbook...kind of shakes my confidence in his software product.

It is a donation-ware product!!!! The guy is very nice, very accomodating. His product senses only one fan, so assigns a value of ''0'' to a non-detected fan. What's wrong with that?

His product was one of the first products that allowed MacBook users to adjust fan settings...

MacBook - 4H621 - 2.0 Gbyte RAM, Parallels VM, Mac OS X (10.4.8) G4 Tower, Atari ST with Mac Plus emulator, Dell 8400 Tower, Dell D600 laptop

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Answer 13

Nov 30, 2006 12:10 PM in response to Larry_Rymal

No need to get so touchy...I didn't mean any offense to the guy.
Bravo to the developer of this software....but perhaps he should make a quick mention in the FAQ's that those with a Macbook should not be concerned with the second fan registering 0. If you do a search on this, there are plenty of Macbook owners that have posted concerns as they, too, didn't know that there is only one fan.

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