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How many fans does a MacBook have?

1977 Views 13 Replies Latest reply: Nov 30, 2006 12:10 PM by Susan Dennis RSS
Duofold Calculating status...
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Nov 24, 2006 7:33 AM
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)  
  • zplus Level 2 Level 2 (230 points)
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    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.
    MacBook, Mac OS X (10.4.8)
  • cnorgangrad Level 1 Level 1 (135 points)
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    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.
    MacBook 1.83 White, Mac OS X (10.4.8), No RSDs so far...
  • Dr.Lolly Calculating status...
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    Nov 24, 2006 9:34 AM (in response to Duofold)
    i'm a fan ;o)
    MacBook, Mac OS X (10.4.8)
  • Mike N. (nahyunil) Level 6 Level 6 (8,265 points)
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    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.
    PM MDD(1.25GHz 1.25G-RAM 320G-HD), Mac OS X (10.4.8), 20"ACD USB2Connect MacBook (2.0 White)-2GB
  • Praeliber Calculating status...
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    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".
    C2D Macbook 2ghz, 1gb RAM, 80gb HD, Mac OS X (10.4.8), 20gb iPod
  • ravin Calculating status...
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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.
    macbook, Mac OS X (10.4.8)
  • Susan Dennis Level 1 Level 1 (30 points)
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    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.
    Black 2.0 Macbook, 2.1 Ghz 20" iMac G5, Mac OS X (10.4.3)
  • JoeyR Level 6 Level 6 (8,275 points)
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    Nov 30, 2006 9:07 AM (in response to Susan Dennis)
    There are two fans in the MacBook Pro.
    PROBLEM-FREE BlackBook - Black 4GB Nano - Black 8GB Gen 2 Nano, Mac OS X (10.4.8)
  • Larry_Rymal Level 2 Level 2 (255 points)
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    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
  • Susan Dennis Level 1 Level 1 (30 points)
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    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.
    Black 2.0 Macbook, 2.1 Ghz 20" iMac G5, Mac OS X (10.4.3)

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