Dennis_S
Level 1 (9 points)
Desktops

Q: Overheating Since Mountain Lion

I have 13" MacBook pro, that has startyed overheating since Mountain Lion uodate.

Its to the point where its too hot to have on my lap and the area abouve the F keys is getting really hot.

 

Any one else getting this?

Posted on Jul 25, 2012 1:24 PM

by MUG5,Solvedanswer
MUG5 MUG5
Level 1 (15 points)
A:

Dennis,

 

I bought my Macbook in June 2012 and it was running hot the whole time. A week or so ago they added an update which helped fix this dramatically. Now I upgraded to Mountain Lion and the overheating is back (techincally it's not overheating but if it's uncomfortable to have on your lap, it's too hot right)?

 

One work around I have done until they release the Mountain Lion patch update like the did the Lion one a week ago is install smc Fan Control. Basically by defauly the fan runs at 2000RPM and this allows you to increase that minimum. I have set it to 4000RPM and there is very minimal audible difference and it is bringing the core temparature down for the most part all of the time. You can go higher but I think thats overkill.

 

smc Fan Control is free, after you install it, it resides in your notification area in the top right (this is where you can change settings etc)

 

Hope this helped you as I know personally how annoying these overheats can be.

Posted on Jul 26, 2012 9:10 AM

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Dennis_S

Q: Overheating Since Mountain Lion

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  • by Gorloth99,

    Gorloth99 Gorloth99 Jul 31, 2012 6:02 PM in response to Dennis_S
    Level 1 (0 points)
    Jul 31, 2012 6:02 PM in response to Dennis_S

    Have you tried to see if your macBook will sleep. Since 10.7.2 on and now including Mountain Lion. SMC Fan Control 2.3 will not allow my mid 2011 iMac to sleep. Post your answer please.

  • by Dennis_S,

    Dennis_S Dennis_S Jul 31, 2012 9:47 PM in response to Gorloth99
    Level 1 (9 points)
    Desktops
    Jul 31, 2012 9:47 PM in response to Gorloth99

    i'm not convinced that SMC fan control is worth it. Sonce installing it I keep getting flagged to enter a password each time it wants to do something, thatvs poor software design.

    I'm holding out for a patch!

  • by Gorloth99,

    Gorloth99 Gorloth99 Aug 1, 2012 3:43 AM in response to Dennis_S
    Level 1 (0 points)
    Aug 1, 2012 3:43 AM in response to Dennis_S

    The reason I'm not using SMCFan Control anymore is because I run Handbrake a lot and need to ramp up my fans to keep my iMac cool, but when the Handbrake queue is done I want the iMac to go to sleep. SInce X.7.2 this hasn't been happening. Apple changed how SMC works. Any firmware update might do this. Apple doesn't go into details about this. And forget the Genius bar having any info on that. So I have been using  "iStat Menus" by Bjango. It does more than fan control, but that's all I use it for. and it allows the iMac to sleep. They just updated it for X.8 too. Although they charge $16 they do stay on top of it. I did write tech support a question, but they never replied back. I was just trying it in the demo mode... but still, they could of aknowledged my question. And it gets high user rating. For you, worth a look I'd say.

  • by Dennis_S,

    Dennis_S Dennis_S Aug 2, 2012 11:56 AM in response to Gorloth99
    Level 1 (9 points)
    Desktops
    Aug 2, 2012 11:56 AM in response to Gorloth99

    This is BS really, I cannot keep my laptop on my laptop without a freakin' towel underneath it.

  • by kristján,

    kristján kristján Aug 5, 2012 11:07 AM in response to Dennis_S
    Level 1 (0 points)
    Aug 5, 2012 11:07 AM in response to Dennis_S

    This is BS really, I cannot keep my laptop on my laptop without a freakin' towel underneath it.

     

    It's probably not a silver bullet solution but you can try firing up Terminal.app and running the command "top -ocpu" (press 'q' to quit). When ran top it showed Mail.app at 100% cpu and Safari.app at 48% cpu. When I restarted both of these programs, the fans stopped running at full blast and my MBA cooled down a bit.

  • by art_lover24,

    art_lover24 art_lover24 Aug 5, 2012 11:13 AM in response to Dennis_S
    Level 1 (0 points)
    Aug 5, 2012 11:13 AM in response to Dennis_S

    I had the same problem and called apple.  They made me check the activity monitor to find out if anything was taking more than 75% of CPU.  Then they made me follow a procedure to shut the laptop down, start it using Shift, Control and Option buttons and then do a reset using some other keys, that I don't remember now.  They said that this will solve the problem.  Everything looks OK right now.

     

    The best solution is call Technical Support at Apple.

  • by BigBobD,

    BigBobD BigBobD Aug 5, 2012 12:28 PM in response to art_lover24
    Level 1 (0 points)
    Aug 5, 2012 12:28 PM in response to art_lover24

    nc

  • by Aldonin,

    Aldonin Aldonin Aug 6, 2012 4:58 PM in response to Dennis_S
    Level 1 (10 points)
    Aug 6, 2012 4:58 PM in response to Dennis_S

    I have an imac early 2011 i5 2,8Ghz 8GB Ram.

    Since I installed ML the fans have been working non stop, and the rear side of the screen at the top (where the mic is) it is really hot. 

    Also the machine now takes a lot longer to wake up from sleep.  And it feels as if Spotlight was indexing forever (slower than usual).  I checked and Spotlight is done.

     

    I join all dissappointed ones.  So far ML disadvantages > ML advantages.

     

    Plus if my imac fries up it will be the most expensive update ever.

     

    BTW is there a fan control software for imacs?

     

    Thanks!

  • by Arman P,

    Arman P Arman P Aug 7, 2012 6:09 PM in response to Dennis_S
    Level 1 (0 points)
    Aug 7, 2012 6:09 PM in response to Dennis_S

    ya i am having the same problem, i have a mid-2011 13 inch macbook air with 256gb flask and i7. My laptop is gets hot even if I am just reading a article on the web. I am wondering if power nap has anything to do with it. I hope they fix this soon.

  • by sanumala,

    sanumala sanumala Aug 28, 2012 1:06 PM in response to Dennis_S
    Level 1 (0 points)
    Aug 28, 2012 1:06 PM in response to Dennis_S

    Last week I have updated to ML on my MBP Mid 2010 17" with new 512 OCZ Agility SSD. Since then it is over heating crazy even during simple internet browsing. I have closed everything except Google Chrome but temp are > 40C all time and I cant even put MBP on my lap at least for a minute. After installation immediately I have updated to 10.8.1 and run "repair disk permissions" cleaned all junk using clean my mac but no luck. Typically I shutdown every day and with in 1 minute of starting it back it is reaching to 40C. Not sure whats going wrong, Is it worth calling Apple support since I have apple care protection? Please help!

  • by apple2k10,

    apple2k10 apple2k10 Sep 28, 2012 9:28 AM in response to sanumala
    Level 1 (0 points)
    Sep 28, 2012 9:28 AM in response to sanumala

    I am having this over heating issue since installing ML on both an i7 iMac w/ 32GB of RAM and my wife's almost band new MacBook Air

     

    Something is the matter with that OS build, I hope Apple fixes it

     

    Everything in the ecosystem used to work, my iMac has never crashed in 1.5 years, but since ML, it's happening anytime I use the computer for a prolonged period of time

     

    I'm surfing the web, BTW, not running any CPU intensive programs

  • by treeyou,

    treeyou treeyou Aug 27, 2013 7:45 PM in response to Dennis_S
    Level 1 (12 points)
    Mac App Store
    Aug 27, 2013 7:45 PM in response to Dennis_S

    hey everyone, i created something for this very issue... and just  launched it on Kickstarter. Please check it out if you want to stay  'Cool'.

     

    http://www.kickstarter.com/projects/myworm/cool-apple-macbook-pro-cooler-that-co ols-inside-an

     

    Lowers  BOTH internal and external temps... and it's tested and proven! contact  me through Kickstarter or treeyou@gmail.com if you have any questions.  Thanks and please pass the word!!!!

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