New Macbook overheating and slowing down

Discussion in 'MacBook' started by jufjo, Oct 1, 2009.

  1. jufjo macrumors member

    Joined:
    Oct 6, 2008
    Location:
    Amsterdam, The Netherlands
    #1
    I have a new macbook, see stats below.
    Up till last week everything was fine, I could run 'Second Life', photoshop, email, a browser, download stuff, play Itunes AND watch a movie all at once without any trouble.
    But recently the computer has gone a bit weird.
    It started getting very hot, much slower and turning itself off.
    At this moment it even does that when I run 'Second Life' at a much lower setting them before.
    I got smcfancontrol and it showed the heat being 90degrees C!
    A bit hot I reckon.

    I am wondering what is wrong with my laptop, why it happened and how to solve it.
    At the moment I am playing with the smcfancontrol settings but I want to know why this suddenly has happened and I think even just smcfancontrol will fix it.

    With smxfancontrol set at max (6200) the heat is still near 80 degrees C.

    Model Name: MacBook
    Model Identifier: MacBook5,1
    Processor Name: Intel Core 2 Duo
    Processor Speed: 2 GHz
    Number Of Processors: 1
    Total Number Of Cores: 2
    L2 Cache: 3 MB
    Memory: 2 GB
    Bus Speed: 1.07 GHz
    Boot ROM Version: MB51.0073.B06
    SMC Version (system): 1.32f8
     
  2. Eidorian macrumors Penryn

    Eidorian

    Joined:
    Mar 23, 2005
    Location:
    Indianapolis
    #2
    Have you taken a look at Activity Monitor showing All Processes to see if there is something using all of your CPU?
     
  3. jufjo thread starter macrumors member

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    Oct 6, 2008
    Location:
    Amsterdam, The Netherlands
    #3
    Yes but the highest use is Itunes with around 9CPU.
     
  4. Eidorian macrumors Penryn

    Eidorian

    Joined:
    Mar 23, 2005
    Location:
    Indianapolis
    #4
    Make sure you're showing All Processes and not just My Processes.
     
  5. jufjo thread starter macrumors member

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    Oct 6, 2008
    Location:
    Amsterdam, The Netherlands
    #5
    Ah!
    Well I've changed that and with the fans at full speed the big CPU users are the internet browser and Itunes.
    Both generally using less then 10 CPU.
     
  6. Eidorian macrumors Penryn

    Eidorian

    Joined:
    Mar 23, 2005
    Location:
    Indianapolis
    #6
    I forgot to mention to sort by CPU % as well.

    It might be Flash if you're running Snow Leopard, Spotlight, or some runaway printer daemon. One more thing. You might want to remove your serial number from your post.

    Otherwise if those are the highest CPU using processes I'd reset your PRAM and SMC first.
     
  7. jufjo thread starter macrumors member

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    Oct 6, 2008
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    Amsterdam, The Netherlands
    #7
    I've sorted by CPU use percentage.
    No idea how to sort RAM and SMC .
     
  8. Eidorian macrumors Penryn

    Eidorian

    Joined:
    Mar 23, 2005
    Location:
    Indianapolis
    #8
  9. jufjo thread starter macrumors member

    Joined:
    Oct 6, 2008
    Location:
    Amsterdam, The Netherlands
    #9
    Cheers for your help :)
    I'll have a look at those.
     
  10. jufjo thread starter macrumors member

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    Oct 6, 2008
    Location:
    Amsterdam, The Netherlands
    #10
    BTW, at the top of my screen Smcfancontrol tells me that the rpm is 000.
    Does that make sense?
     
  11. KielderWolf macrumors regular

    KielderWolf

    Joined:
    Aug 1, 2009
    Location:
    Northeast England
    #11
    Do you actually mean zero-zero-zero or did you miss a digit off the beginning?

    If you did mean zero, your fan is likely broken which would explain the entire overheating problem. In fact you're pretty lucky the internals haven't melted yet. Get your machine to a repair shop, who will be able to tell you what failed; most likely the fan motor or a snapped fan belt.
     
  12. Richard1028 macrumors 68000

    Joined:
    Jan 8, 2009
    #12
    There are actually "belts" in a macbook fan? :eek:

    Maybe the hamster just died?
     
  13. KielderWolf macrumors regular

    KielderWolf

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    Aug 1, 2009
    Location:
    Northeast England
    #13
    I would assume so, I've never really pulled one apart before to look but I'd have thought that the fan being so small would probably be powered by a motor adjacent to it connected via belt.

    I'll go and have a look at iFixit and see what they have there. I may be wrong. Always good to learn something new though :D

    As for dead hamsters... well there are three hamsters in the room with me right now and I wish they were dead. All three of them seem intent on driving me mad by spending a stupidly long time drinking from those absurdly loud water bottles. Then running in their wheels which no matter how much Vaseline you put on the axle always squeak. Anyway, I digress, lack of sleep is beginning to have an effect on the amount of ranting I'm doing tonight.

    Bloody hamsters. If it weren't for the threat of Hayli's wrath I'd have drowned them all by now.
     
  14. Richard1028 macrumors 68000

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    Jan 8, 2009
    #14
    I was just ribbing you. There are no belts on cooling fans.

    I hear they are good eatin' after 6 months or so. Taste like chicken. :D
     
  15. KielderWolf macrumors regular

    KielderWolf

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    Aug 1, 2009
    Location:
    Northeast England
    #15
    Really? Huh, must be a tiny tiny motor then. Though that said... I have a USB floppy drive that's only a third-inch thick so I suppose you must be able to get pretty flat motors now. I kinda haven't paid attention to general electric components since I did electrical engineering for a term in early secondary school; and that was just LEDs and PIC-chips and so forth. My mind tends to draw a line between electrical components and computer components for some reason; it can accept a microprocessor chip being a sixteenth of an inch across but an electric motor will always be a cylinder one half inch in diameter and three quarters of an inch long.

    I wouldn't know about how hamsters taste but I've had chargrilled guinea pig before and it was really quite nice. Had a kangaroo burger before too from the Christmas Market in Newcastle.

    Boy have we gone off-topic :D
     
  16. jufjo thread starter macrumors member

    Joined:
    Oct 6, 2008
    Location:
    Amsterdam, The Netherlands
    #16
    Just a long overdue update.
    I contacted Apple and they told me my fan was broken, I would have to bring it to the shop for repair.
    I was not keen on being without my computer for days, perhaps even weeks so I decided to take a look myself.
    I am not very technical and modern electronics hate me (they do, it is a conspiracy, but everything made after the 1940s tries to kill me now and then ;) ).
    So carefully I opened the back of my macbook and saw the fan, it was very dusty.
    I took a can of compressed air and cleaned the fan, started the computer up again, gave the fan a little push with my hand and wooossssshhh it started working again.
    Laptop was as good as new.
    This happened one more time since, yes I know, my house is dusty, but just cleaning the fan very carefully did the trick again.
     

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