Anyone having loud fan issues?

Discussion in 'MacBook Air' started by jkim3691, Feb 10, 2012.

  1. jkim3691 macrumors 6502a

    Joined:
    Oct 8, 2011
    #1
    I watch videos on Hulu and stream ESPN3 often and wouldn't be able to full screen on my 24" display that I hook my Air up to because the fan is just too obnoxiously loud. Fine, so I wouldn't watch them full screen, no big deal. Fan didn't bother me then. Now I try watching Hulu in it's normal window and the fan is too loud to even enjoy watching the video. Anyone else have this problem?
     
  2. 3dflyboy1 macrumors 6502

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    Jun 27, 2011
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    California, USA
    #2
    It's normal...don't let it bother you too much.;)
     
  3. jkim3691 thread starter macrumors 6502a

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    Oct 8, 2011
    #3
    Kind of hard to when the fan is so loud it's difficult to hear the video. It's pretty obnoxious. If you have the ability to just ignore it, I applaud you. But to me it's pretty stupid how loud it is. And yes, I've done an SMC reset. It only happens when I'm watching Flash videos. As soon as I close the tab, the fans begin to quiet down. The problem is that it didn't use to make so much noise when it wasn't it full screen. Now it's just unbearable.
     
  4. mrsir2009 macrumors 604

    mrsir2009

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    Melbourne, Australia
    #4
    See the website in my sig :)
     
  5. jkim3691 thread starter macrumors 6502a

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    Oct 8, 2011
    #5
    The thing that's bugging me is I never had to use fan controls or a dumb cooling pad before. Just yesterday the fan started acting crazy when watching Flash videos. Before even watching videos on Youtube the fan wouldn't make much noise, but now it's gotten noticeably louder. I haven't changed anything or played with any setting.
     
  6. GGJstudios macrumors Westmere

    GGJstudios

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    May 16, 2008
    #6
    The Intel processors used in Macs are designed to automatically shut down to prevent damage if they truly overheat. CPU Tjmax = 105C, GPU Tjmax = 100C on i3, i5, i7 processors. (Source: Intel) iStat Pro will give you accurate readings of your temps and fan speeds, among other things.

    Unless there is a rare defect in a Mac, most temps are well within the normal operating range, considering the workload being put on it. Websites with Flash content, games and other multimedia apps will put higher demand on the CPU/GPU, generating more heat. This is normal. If you're constantly putting high demands on your system, such as gaming or other multimedia tasks, expect temps to rise and fans to spin up accordingly. It's just your Mac doing its job to maintain temps within the normal range.

    It is also quite normal for your Mac to become extremely hot to the touch during intensive operations. The aluminum body transfers heat more effectively than other materials used in computer casings, so you will feel the heat more. This doesn't indicate that it's overheating and will not harm the computer to be hot to the touch.

    Your fans are always on when your Mac is on, spinning at a minimum of 2000 rpm (for MBPs) or 1800 rpm (for MBAs, MBs and minis). iMacs have 3 fans with minimum speeds in the 800-1200 range. They will spin faster as needed to keep temps at a safe level. If they're spinning up without increased heat, try resetting the SMC. (PRAM/NVRAM has nothing to do with these issues, so resetting it will not help.)

    The intake and exhaust vents are in the back of the computer near the hinge on all Mac notebooks. The iMac vent is a slot on the back near the top of the computer. Make sure the vents remain unblocked to allow your computer to perform at its best.

    Learn about the fans in your Mac
    Apple Portables: Operating temperature

    For Flash-related issues:
     
  7. tom vilsack macrumors 68000

    tom vilsack

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    Nov 20, 2010
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    #7
    did you just apply latest lion update?

    could you have installed something that is running in background? (check system activity)
     
  8. Cynicalone macrumors 68040

    Cynicalone

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    #8
    My model is 2011 MacBook Air 13" i7.

    When I watch ESPN3 I get temps around 70º to 80º celsius the fans usually stay on around 4000RPM. If while I'm watching time machine starts backing up to my NAS then it heats up to 90º celsius or higher and the fans ramp up to 6000RPM.

    All of that is to say it is normal, or at least my laptop has always done that.
     
  9. 3dflyboy1 macrumors 6502

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    Jun 27, 2011
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    California, USA
    #9
    I generally boot to windows or use noise canceling headphones if I know I'll be watching a lot of flash videos on my MBA. Windows 7 has proven to get much better battery life with flash too.
     
  10. mrsir2009 macrumors 604

    mrsir2009

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    #10
    Is spotlight indexing? :eek:
     
  11. jkim3691 thread starter macrumors 6502a

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    Oct 8, 2011
    #11
    No. I've done all the logical stuff. Got the latest version of Flash, no software updates for OS, checked Activity Monitor, etc.
     
  12. The Smyrk macrumors member

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    Feb 12, 2012
    Location:
    Austin, TX
    #12
    same thing happens to me, headphones work wonders!
     
  13. aldo818 macrumors regular

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    Nov 18, 2009
    Location:
    South of France
    #13
    Since i did the latest Lion update my fans are much louder as before watching movies too. Never had it before.

    I ve an ultimate 2010 macbook air
     
  14. spikeyjac macrumors regular

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    Sep 16, 2006
    #14
    Mine gets really loud when watching flash videos as well :(
     
  15. alphaod macrumors Core

    alphaod

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    Feb 9, 2008
    Location:
    NYC
    #15
    Flash (along with video watching, to some degree) uses a lot of processing power. When your processor is used, it produces heat. This heat needs to be expelled from your computer somehow: it transfer heat to a heatsink (ie: radiator) and the fan spins up to moves the air out of your computer (ie: fan on radiator). The more processing power is uses, the more heat is produced, the faster the fans needs to spin to keep your computer cool.
     
  16. jsolares macrumors 6502a

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    Land of eternal Spring
    #16
    flash on mac does, flash on windows doesn't use as much cpu.
    heck using two virtual machines in fusion uses less cpu than flash.

    ivy bridge will do more with less heat, if you can't stand the current MBA noise return it and get one with ivy bridge when they come out.
     
  17. jkim3691 thread starter macrumors 6502a

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    Oct 8, 2011
    #17
    I know all of this. What I'm saying is that the fans have been running more in situations where before they weren't as loud. I haven't done anything different to my laptop so I don't see why this would happen.
     
  18. jsolares macrumors 6502a

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    Aug 8, 2011
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    Land of eternal Spring
    #18
    Some have said the recent Lion update had the fans run a little faster, i wonder if because the cpu is a little hotter or something else.

    Was it before or after the update that you started noticing? if you haven't updated yet, have you updated flash or chrome if you use that?

    I don't use mine that much (turns out i'm not as mobile as i thought i was), and they changed the topcase (bum T key) so i think they reapplied thermal paste since it was actually running a little cooler.
     
  19. JonLa macrumors 6502

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    Dec 22, 2009
    #19
    My one teensy complaint about my lovely macbook air 2010 is that it doesn't cope well with flash video from youtube or crunchyroll.com - it plays it fine, but can get hot (particularly if plugged into the mains, as it normally runs a few degrees hotter then) and the fan can then kick in, noticeably - particularly if I'm watching video in bed and the other half is trying to sleep.

    Playing videos with itunes, quicktime or VLC is fine.
     
  20. jkim3691 thread starter macrumors 6502a

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    Oct 8, 2011
    #20
    I haven't updated anything recently.
     
  21. bill-p macrumors 65816

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    Jul 23, 2011
    #21
    It's dust building up in your computer over time, I think.

    Either that or something is blocking the vent in the back.

    Or the thermal paste has decided to give out.

    There are many reasons why a Mac would heat up while playing Flash, or otherwise something else. But I've found that when it happens, and if you want to make it quiet again, best bet is to open it up, clean out the inside, and put it back again. Depending on what you clean out, your warranty may be void so take extreme caution.

    Personally, it happened way too often with my MacBook Air. The only remedy was to use Coolbook, which seems to no longer be updated and doesn't support Core i CPUs anyways. So... tough luck.
     
  22. jkim3691 thread starter macrumors 6502a

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    Oct 8, 2011
    #22
    Okay, now it's running like it was before. WHAT IS GOING ON?
     
  23. gmanist1000 macrumors 68030

    gmanist1000

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    Sep 22, 2009
  24. jkim3691 thread starter macrumors 6502a

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    Oct 8, 2011
    #24
    Shockwave flash kept crashing in Google Chrome when the fan was running loudly. Could this possibly be the culprit? Anyone with some insight?

    I could still watch videos and stuff, but I'd have that banner at the top of my pages saying it crashed.
     
  25. alpa2500 macrumors newbie

    Joined:
    Feb 17, 2012
    #25
    Same Experience

    jkim3691 I have the same problem. My MacBooK Pro is one week old. I was using a MacBook Pro in my previous job, and the fans never ramped up like this one (that MacBook Pro was purchased in 2010), even when rendering in Blender . . . Both computers running the latest version of Lion, same memory, diff processors and graphics cards.
     

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