My new Macbook runs soooo cool. Can anyone explain this?

Discussion in 'MacBook' started by Dammage, Oct 26, 2008.

  1. Dammage macrumors newbie

    Oct 26, 2008
    So I made the switch to Mac's and I'm extremely satisfied. However, after looking all over the web and chat with Apple, I can't figure out why this notebook runs so cool. Apple says they have internal fans. I can somewhat hear those but where does the air vent? It really is amazing. It stays so cool. So if anyone has an explanation I would love to hear it.


  2. robanga macrumors 68000


    Aug 25, 2007
    Mine runs much cooler than my MBP. I have noticed the same thing.
  3. richard.mac macrumors 603


    Feb 2, 2007
    51.50024, -0.12662
    the air vent is at the back of the case under the LCD hinge. pipes from the CPU connect to heat sinks underneath the hinge and a fan blows air thru the vents to get the heat off.

    MacBooks being aluminium keep cooler than plastic MacBooks as they are conductors and dissipate heat easier.

    you are probably just using it at idle speed so it will remain cool. to feel it heat up rip a DVD with Handbrake. it will get hotter and the fan will rev up more. all in safe temps of course.
  4. Philflow macrumors 65816

    May 7, 2008
    Yeah I ran 3dMark06 last night (2189 @ 1280*800) and it got pretty hot. I could still touch it though.
  5. Dammage thread starter macrumors newbie

    Oct 26, 2008
    Thanks I was really curious. Compared to my HP it is amazing. I could never lay it on my bed without a book or board allowing it to vent. I'm just really satisfied. Wish I would have switched to Mac years ago
  6. Philflow macrumors 65816

    May 7, 2008
    lol then you would have gotten a hot macbook :)

    You switched at exactly the right moment.
  7. The Samurai macrumors 68000

    The Samurai

    Dec 29, 2007
    I also switched this month to Mac. It's a really good experience.

    My previous Dell notebook got extremely hot - so hot that under my desk it would be very hot. But then again, that particular Dell model was 2-3 years outdated and I am sure Dell's recently line up wouldn't be as bad.
  8. southerndoc macrumors 65816


    May 15, 2006
    I'm amazed at how cool this thing runs compared to my black MacBook. I can barely hear anything at all. I don't think it's the fan I'm hearing -- I think it's the hard drive actually.

    When I'm watching video, then I can hear the fans crank up a bit. It still stays pretty cool though.
  9. jsonli macrumors member

    Oct 26, 2008
    Looks like the hinge has vents. That said, surfing/chatting isn't CPU-intensive at all so it'll stay cool. I've gotten my MB pretty hot in boot camp as the fan control doesn't work.
  10. Dammage thread starter macrumors newbie

    Oct 26, 2008
    So the fan just runs in slow? How does that work?
  11. yabai macrumors member

    Apr 27, 2007
    Too lazy to set up a Handbrake conversion to test how hot it can protentially get? Not interested in pulling up the Terminal? Try turning up the AI in the Chess program to max and see the CPU usage rise to 100%. The new models get a bit hot, but nowhere near the older ones.
  12. jsonli macrumors member

    Oct 26, 2008
    Yeah it seems like it just remains around 1000 RPM in XP. It's barely audible in a quiet room. So if you do something intensive it will really heat the CPU up to dangerous levels.
  13. Dammage thread starter macrumors newbie

    Oct 26, 2008
    Well that's too bad. I'm sure there is something out there to manually control the fan speed.
  14. jsonli macrumors member

    Oct 26, 2008
    Umm yeah it's too bad. It's a new chipset from Nvidia so the utilities out there will have to be updated to use it.

    Thermally I'm surprised it does as well as it does considering there aren't too many "breathing holes" on this case. In fact, I wish they had stamped a few more holes on the bottom so the fans could run slower and quieter. Would save a bit of battery life too.
  15. rowlands macrumors newbie

    Oct 24, 2008
    Southern tip of Taiwan
    Wahoo... I'm so pleased to hear that Apple have sorted this out, I have a first gen MBP and this burns even when idle. I had to use a cool pad on my lap to stop it torching me.
  16. CaptainCaveMann macrumors 68000


    Oct 5, 2004
    They complain when it runs hot, and they complain when it runs cool. :rolleyes:
  17. hekokimushi macrumors regular


    Oct 27, 2008
    i thought it was very very cool too.

    2.4AluMB 4G ram

    only up to a point when i start to load quite a few applications.
    VM Fusion with XP going
    Firefox with a few pages browsing
    a few stock live widgets
    VNC to another PC

    CPUA went up to 65 degrees, the aluminium went quite warm but touchable fan spinned up to 4000rpm

    but loving the new laptop, a new mac switcher.

  18. GreenEyed85 macrumors member

    Oct 27, 2008
    My old white 1.86Ghz macbook or the "hotbook" used to heat up to 80c! and the fans used to always be at 6000rpm even if just firefox was just open. It finally died last month and I just waiting for the new Alu macbook to arrive.

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