Lion, more heat and fan noise? (2011 MBP)

Discussion in 'Mac OS X Lion (10.7)' started by MrRoyksopp, Jul 20, 2011.

  1. MrRoyksopp macrumors regular

    Joined:
    Mar 4, 2010
    #1
    Hi guys.

    Earlier today I upgraded to Lion, and everything has been working great, but there's just one thing that concerns me; the temperature has been increased, and the fan goes on all the time.

    Does anybody have the same issue with the 2011 Macbook Pro's?

    (I'm currently on the 13" i5 model)
     
  2. askabob91 macrumors member

    Joined:
    Sep 21, 2008
    #2
    I am running a 2008 white macbook 2.4GHz C2D and Lion makes its fan run at a high speed (4000+rpm) all the time. This never happened in Snow Leopard.
     
  3. MrRoyksopp thread starter macrumors regular

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    Mar 4, 2010
    #3
    Neither with me!
     
  4. aristobrat macrumors G5

    Joined:
    Oct 14, 2005
    #4
    What process is running on your laptop, generating the heat?

    Go into the Activity Monitor application, set it to show All Processes, then sort % CPU so the arrow is pointing down.

    Whenever your fan runs, look for the the top processes there.

    My 2010 Air idles a lot cooler with Lion than it did with Snow Leopard. However, there's been more than one time (after install) where it looked like Spotlight was doing more reindexing. That caused the processor to go up, which turned the fan on.
     

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  5. mwxiao macrumors regular

    Joined:
    Jul 5, 2007
    Location:
    CT
    #5
    I have the same problem. Easily get to 70F with only a couple of safari windows open.
     
  6. archer75 macrumors 65816

    Joined:
    Jan 26, 2005
    Location:
    Oregon
    #6
    My temps are high as well on my imac. All I have to do is browse the web and I can watch the GPU temp shoot up. CPU runs hotter than it should as well.
     
  7. MrRoyksopp thread starter macrumors regular

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    Mar 4, 2010
    #7
    I'll try it, thanks!
     
  8. johnfkitchen macrumors regular

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    Sep 7, 2010
    #8
    So you must have a very cold room to see temps this low!
     
  9. askabob91 macrumors member

    Joined:
    Sep 21, 2008
    #9
    I looked in activity monitor and 'mdworker', Safari, and Safari Web Content all are switching between 5 and 40. I only have three tabs open too!
     
  10. TrickyRick macrumors member

    Joined:
    Jul 20, 2011
    #10
    Mac OS redoes the index for Spotlight after a Lion install I noticed. That's the mdworker process if I'm not mistaking. It takes a LOT of CPU and also puts an incredible load on the HDD which is why things can seem really slow. Usually takes a couple of hours, of course depending on how much stuff you have on your drives.
     
  11. mrapplegate macrumors 68030

    Joined:
    Feb 26, 2011
    Location:
    Cincinnati, OH
    #11
    mdworker will take a bit to index your drive after the initial install. Expect higher usage and temps until it finishes.
     
  12. askabob91 macrumors member

    Joined:
    Sep 21, 2008
    #12
    Oh! That's probably the reason. Good spot Rick, I didn't even notice that.
     
  13. archer75 macrumors 65816

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    Jan 26, 2005
    Location:
    Oregon
    #13
    Except it spikes your GPU and then even after indexing is complete your temps are still high.
     
  14. MrRoyksopp thread starter macrumors regular

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    Mar 4, 2010
    #14
    I'm a noob in this, but what does 'indexing' mean?
     
  15. TrickyRick macrumors member

    Joined:
    Jul 20, 2011
    #15
    Basically Spotlight keeps a record of all your files and where to find them, much like the index at the back of a book. This so that it can do faster searches.
     
  16. MrRoyksopp thread starter macrumors regular

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    Mar 4, 2010
    #16
    Arh, thanks a lot!
     
  17. Henry Li macrumors member

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    Mar 24, 2009
    #17
    Same here. Lion is even slowing my macbook pro. :mad: I want refund from Apple.
     
  18. TrickyRick macrumors member

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    Jul 20, 2011
  19. wizylabs macrumors newbie

    Joined:
    Jul 20, 2011
    #19
    After upgrading to Lion OSX, on my Mac 15" 2011 (bought couple months ago) indexing is done, only photoshop and few other apps are running and the fan noise is LOUD. That is my current stats http://cl.ly/8dwU .

    On Snow Leopard (which I already miss) I could barley hear the fan sound! its really annoying cuz its a pain to downgrade to snow leopard again. Any one found a solution to this issue?
     
  20. Drunken Master macrumors 65816

    Drunken Master

    Joined:
    Jul 19, 2011
    #20
    SL did this when I first installed but it stopped eventually.
     
  21. Kyle4 macrumors 6502

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    Aug 14, 2010
    Location:
    Canada
    #21
    I have a Mid-2010 Macbook Pro and it definitely runs a lot hotter than Snow Leopard did. There's also nothing running besides the browser. I'm hoping with a SU this issue is fixed.

    For comparison:

    Snow Leopard in iStat:

    CPU: 50 Celsius
    Fan Speed: 2000 RPM

    Lion

    CPU: Ranges from 62-70
    Fan Speed: 3200-4000
     
  22. CapnJackGig macrumors 6502a

    Joined:
    Jul 17, 2011
    #22
    It did this on my Macbook Air 2010 too, and then after an hour or so its sorted out. Run your computers a bit and see if it does the same.
     
  23. crizyal macrumors member

    Joined:
    Nov 9, 2010
    Location:
    Just South of the Great White North
    #23
    My MBP 13" has been done indexing for hours. My CPU is idle to 5% and my temp is up to 190 with fans at 4000RPM. I am pretty sure we have a problem here.

    Edit: On my MacBook Air 11" with Lion on it temps and fans are normal.
     
  24. saberahul macrumors 68040

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    Nov 6, 2008
    Location:
    USA
    #24
    Opposite with me.
     
  25. Goret macrumors newbie

    Joined:
    Jun 7, 2010
    #25
    I'm on an early '08 13" white macbook and after installing the fan did go crazy while spotlight was indexing. It only took about 10mn (I've upgraded to a SSD) and now the fan noise is over. Back to normal :)
     

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