14 Replies Latest reply: Apr 15, 2012 12:57 PM by .Joop
.Joop Level 1 Level 1 (0 points)

Hello,

 

I bought a MacBook pro in january 2012, so it's still quite new. Now the problem is that the ventilator is getting more noicy and/or more active. It is constantly ventilating even if I have no programs running, it even starts ventilating when in sleep mode! It ventilates constantly when the mac is in use, and when in sleepmode it ventilates for about 1minute and then stops for 10 seconds just to start ventilating again. The mac is a bit warm (more then you'd expect for what I use if for) but it's not overheated. I already tried to reset the System Management Controller, but this did not help. I'm not quite a computer geek so if you could awnser in normal human language that would be very appreciated

 

Thanks in advance!


MacBook Pro (13-inch Late 2011)
  • 1. Re: Macbook pro ventilator
    dominic23 Level 7 Level 7 (20,930 points)

    For fans running at high speed try Reset SMC.

     

    http://support.apple.com/kb/HT3964

     

    Use the method for:

     

    "Resetting SMC on portables with a battery you should not remove on your own".

    Hope it helps.


  • 2. Re: Macbook pro ventilator
    .Joop Level 1 Level 1 (0 points)

    Thanks for your awnser, but as stated in my original question I already mentioned that I have tried this, and it did not work. Any other suggestions?

  • 3. Re: Macbook pro ventilator
    dominic23 Level 7 Level 7 (20,930 points)

    Try Reset PRAM

     

    http://docs.info.apple.com/article.html?path=Mac/10.7/en/mh26871.html

     

    You may check Activity Monitor for any process that shows high cpu usage.

  • 4. Re: Macbook pro ventilator
    thomas_r. Level 7 Level 7 (27,925 points)

    If the fans are running almost constantly during sleep, either the machine isn't actually sleeping or there's a hardware issue.  You'll know it's sleeping if the light on the front edge is pulsing.

  • 5. Re: Macbook pro ventilator
    OGELTHORPE Level 7 Level 7 (25,720 points)

    Run an Apple Hardware Test.

     

    Ciao.

  • 6. Re: Macbook pro ventilator
    .Joop Level 1 Level 1 (0 points)

    @ Domenic I have resetted the PRam but it did not work, this might be because of what Thomas says.

     

    @Thomas A Reed, It seems that the machine isn't sleeping, since when I close it the light on the front edge is on constantly (no pulse). I downloaded IstatPro to see if my vantilator is ventilating (is that even a word? English is not my primary language) too much, but it says that it exhaust about 2000 rpm, I'm not sure if this is too much but it sounds louder then it did before.

  • 7. Re: Macbook pro ventilator
    Wayne Contello Level 6 Level 6 (13,615 points)

    If the fans are running and they are noiy they are probably not cooling very well.  You may want to take this machine into an Apple store to see if the fan(s) should be replaced.

  • 8. Re: Macbook pro ventilator
    OGELTHORPE Level 7 Level 7 (25,720 points)

    2000 rpm is the normal minimum speed for the internal MBP fans.

     

    Ciao.

  • 9. Re: Macbook pro ventilator
    dominic23 Level 7 Level 7 (20,930 points)

    As OGELTHORPE said 2000 rpm is normal for Macbook Pro fans.

     

    Two steps you can take are:

     

    1. Investigate the possibility another source of noise.

    2. Take it to the Genius Bar at Apple Store further checking. They have better tools to evaluate the condition.

     

    Best.

  • 10. Re: Macbook pro ventilator
    .Joop Level 1 Level 1 (0 points)

    First of all thank you for the awnsers.

     

    It seems like we (Thomas A Reed) found the problem. Now I just need a solution. My MacBook Pro does not go to sleep when closing the lid, or pressing the apple logo and 'sleepmode'. I've searched the internet and it seems like I'm not the only one. But the solutions I find aren't helping. When pressing sleepmode the screen goes black but the indication light stay on and won't go into pulsing mode, and ofcourse the ventilators stay on. I deleted /Library/Preferences/SystemConfiguration/com.apple.PowerManagement.plist as part of a toturial I found on this subject but it didn't work. I hope this won't do any harm to my computer.

     

    Can anyone help me out?

  • 11. Re: Macbook pro ventilator
    thomas_r. Level 7 Level 7 (27,925 points)

    Well, it's possible that there's some third-paty program that is somehow preventing the machine from going to sleep.  Try rebooting in Safe Mode by holding down the shift key at startup.  This disables all third-party software that loads at startup.  Does that change the behavior?

     

    Of course, it could also still be a hardware issue, so running Apple Hardware Test would be another good idea.

  • 12. Re: Macbook pro ventilator
    .Joop Level 1 Level 1 (0 points)

    I'm sorry, I did the AHT as soon as OGELTHORPE mentioned it. This showed no errors.

    Now I've started my mac in safe mode and it still won't go into sleep modus.

  • 13. Re: Macbook pro ventilator
    .Joop Level 1 Level 1 (0 points)

    Okey, so here is the thing. Can a macbook not go into sleepingmode when the powercord is connected? Because if I remove the powercord it will go into sleeping mode. I don't remember that it won't go into sleeping mode when it's plugged in, I thought this was possible. If this is the case I feel really stupid for wasting your time.

  • 14. Re: Macbook pro ventilator
    .Joop Level 1 Level 1 (0 points)

    After knowing that it only happened when the powercord was connected I did some research (and got in way over my head). But if anyone else has te problem, this solved it for me:

     

    open terminal:

    run pmset -g

    You'll get something like this:

     

    Active Profiles:

    Battery Power                    1

    AC Power                    2*

    Currently in use:

    standbydelay          4200

    standby          0

    womp                    1

    halfdim          1

    panicrestart          157680000

    hibernatefile          /var/vm/sleepimage

    sms                    1

    networkoversleep          0

    disksleep          10

    sleep                    0 (imposed by 20)

    hibernatemode          3

    ttyskeepawake          1

    displaysleep          10

    acwake                    0

    lidwake          1

     

    See the line: sleep 0(imposed by 20)? Well that means something appearently

     

    So I did (according to another discussion): ps -ef | grep 20

    I have no idea what it means but I got a whole lot of text as outcome, and saw something between the lines about my printer (which the original poster also had, but then with imposed by 18). So I went to preferences, print and scan, and deleted my printer. This solved my problem.

     

    After running another pmset -g

    Sleep is now at 10.

     

    The only point is that I can't print anymore. I'll try to install it later again, and hope that it works. For now my problem is fixed. Thanks everyone for helping me. All credits for the solution above go to 'jcarpio' and you can read the discussion here: https://discussions.apple.com/thread/3190738?start=45&tstart=0