Solution for win 7 running hot in bootcamp

Discussion in 'MacBook Pro' started by dxerboy, Apr 6, 2011.

  1. dxerboy macrumors member

    Joined:
    Oct 28, 2007
    #1
    I posted this over in the "windows on mac" forum too, not sure if double posting is proper, thought I'd share it here as well since I for one don't spend any time on that other section. Admins feel free to delete one or the other.

    Hey all,

    I’m writing because I’ve finally found a decent solution to the heat issue while running Windows 7 in bootcamp on my MBP.

    With my 2011 MBP 13” I’m running windows 7 (ultimate, 64 bit) for software I use in my daily “work” environment, and was noticing idle temperatures around 60C, and approaching 70C under minimal loads. The same machine idles in the 30s in OS X. Also, coming from another win 7 laptop that idles around 30C, I concluded that win 7/bootcamp on the MBP was noticeably HOT. I was bummed.

    My research taught me a few things:

    Yes, the Sandy Bridge processors run “warmer” due to increased wattage: 35 -> 45 or something like that. Makes sense.
    Yes, the architecture of the MBP is notorious for running hot if something is awry.
    Yes especially in bootcamp.

    I stumbled across a post that suggested the main problem in the windows environment seems to be poor fan control, i.e. even at moderately higher temps the fans don’t seem to spin up at all. I agreed with this observation and set out to find some fan control. I found MacFan in an older post on another forum, and it works great. It’s a bare-bones app that you run in cmd, but it has done the trick for me.

    MacFan doesn’t mess around with the fan controls or settings other than upping the minimum speed. My fans were idling at the 2000RPM mark in win 7, and simply upping the min speed to 2750 immediately brought my CPU down from ~60C to ~48C. Ahhh sweet relief. I can barely barely hear a difference audibly—the machine is still near silent. (I assume they'll go back to 2000 in OSX based on claims, but I'll find out and report back.)

    I run my machine in clamshell mode at work and it feels MUCH cooler to the touch. I’ve been using MacFan for a day now and so far so good. I’m not as worried about longevity of the machine anymore.

    Here it is:

    http://sourceforge.net/projects/macfan/
    Read the “release notes” .txt file for instructions—basically you have give it a one-liner instruction in cmd but it’s dead simple.

    I’m all ears if I missed another way to do this, but just wanted to share what I came up with and give back to the resource pool here at Macrumors.

    Cheers, and happy cooler bootcamping. Funny how these things are exciting to us hehe…
     
  2. alust2013 macrumors 601

    alust2013

    Joined:
    Feb 6, 2010
    Location:
    On the fence
    #2
    Yeah, my machine feels a bit warmer in bootcamp, although the temps that the monitoring shows aren't any warmer. I just run mine in dual display mode in 7, so I don't have to worry about heat.
     
  3. c7aea macrumors regular

    Joined:
    Oct 2, 2010
    #3
    I use SMCfan control, does the same thing. I run my minimum at 3000. I dont use my MBP screen when I am using an external monitor. However, I leave the lid open because the vent is located at the hinge. I think you will find it will run even cooler if you leave the lid open.
     
  4. emiljan macrumors 6502

    emiljan

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    Jan 25, 2010
    Location:
    Michigan
    #4
    Does this have any effect on the longevity of the fans if you run them at higher rpm.
     
  5. Pentad macrumors 6502a

    Pentad

    Joined:
    Nov 26, 2003
    Location:
    Indiana
    #5
    I've always felt that Apple's drivers for Windows via Boot Campy were terrible. It would have been grand if you could switch between graphics cards in Windows like you can in OS X. Windows can do it as other notebooks allow this.

    I suspect that Apple doesn't allow Windows to run as great as it could. Battery life, heat, and other items I think could be better under Windows if Apple were so inclined to improve the drivers. I would like somebody to hack the drivers so this might be possible...


    -P
     
  6. c7aea macrumors regular

    Joined:
    Oct 2, 2010
    #6
    I would imagine like anything else it would wear out faster. However, it is much easier and cheaper to replace a fan then a damaged logic board.
     
  7. dxerboy thread starter macrumors member

    Joined:
    Oct 28, 2007
    #7
    I did try that because of the location of the vent. Also I believe the "intake" is through the keyboard. It seemed to make only a 2-3 degree difference when I ran it fully open. My desk arrangement is much much better with clamshell mode. Sometimes I leave it open an inch for airflow, but now I don't need to with the fans up at 2750. Once again, for those worrying about amped up fans, I can still barely hear them-- I dont' think 2750 vs 2000 is bound to be a problem.
     
  8. dxerboy thread starter macrumors member

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    Oct 28, 2007
    #8
    I thought SMCfan control was for the OSX side--does it work for windows?
     
  9. dxerboy thread starter macrumors member

    Joined:
    Oct 28, 2007
    #9
    I'm sure you're right about Apple "crippling" windows to some extent. Makes sense--they wouldn't want to encourage anyone migrating over to windows 7...
     
  10. c7aea macrumors regular

    Joined:
    Oct 2, 2010
    #10
    Im not sure, I only use OSX... so SMCfancontrol for me
     
  11. deadwulfe macrumors 6502a

    deadwulfe

    Joined:
    Feb 18, 2010
    #11
    It does if you set it in OSX and then reboot to Windows. If you shut the computer off, then you'll have to go back to OSX before rebooting to Windows to get it to work again.
     
  12. dxerboy thread starter macrumors member

    Joined:
    Oct 28, 2007
    #12
    I checked and I'm happy to report that after using MacFan to set the min fan speed at 2750 in windows and booting back into OSX my fan was reset back to the default 2000 rpms.

    Interesting. I must say I like the MacFan solution as it gives control while in windows--no need to go to OS X and boot-set-reboot.
     
  13. dxerboy thread starter macrumors member

    Joined:
    Oct 28, 2007
    #13
    Just curious, and a little off topic, but when do you ever have to manually control the fans while in OSX? Doesn't it do a good enough job adjusting speeds based on temps?
     
  14. c7aea macrumors regular

    Joined:
    Oct 2, 2010
    #14
    It still adjusts automatically like before. But some times when I do something that I know is really CPU intensive I will turn them up manually before I start. And I think 3000rpm is a good min fan speed I cant hear the fans and it stays a bit cooler then with the default 2000rpm
     
  15. dxerboy thread starter macrumors member

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    Oct 28, 2007
    #15
    Gotcha gotcha.
    And I would fully agree that 3000 doesn't make any sound of any consequence--still verrry quiet. Cheers
     
  16. Icy1007 macrumors 6502a

    Icy1007

    Joined:
    Feb 26, 2011
    Location:
    Cleveland, OH
    #16
    Wirelessly posted (iPhone 4: Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_3_1 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8G4 Safari/6533.18.5)

    What is the maximum RPM for the fans in the MBP?
     
  17. dxerboy thread starter macrumors member

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    Oct 28, 2007
    #17
    I think 6000
     
  18. AFPoster macrumors 65816

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    Jul 14, 2008
    Location:
    Charlotte, NC
    #18
    I am in boot camp right now running Win 7 Pro. It's idling around 45-52c compared to when in OS X it's at 28-31c.
     
  19. dxerboy thread starter macrumors member

    Joined:
    Oct 28, 2007
    #19
    Nice. Maybe I have a lemon. or the thermal paste thing... As stated, my temps are more like high 30s for OS X and before the fan adjustment 60C in Win 7.

    Or maybe it's cause you have the 15"... makes me wonder what average temps are for the different models.
     
  20. Icy1007 macrumors 6502a

    Icy1007

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    Feb 26, 2011
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    Cleveland, OH
    #20
    Wirelessly posted (iPhone 4: Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_3_1 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8G4 Safari/6533.18.5)

    Well I know that in bootcamp, the discrete graphics card is always enabled. That might be contributing to the higher temps.
     
  21. mediasorcerer macrumors regular

    Joined:
    Oct 30, 2010
    #21
    there is also- lubbos fan control- for windows too,i tried it,but havent got around to tweaking it,does the min rpm thing like smc fan control,check it out,runs as an app.
     
  22. Youngchild macrumors member

    Youngchild

    Joined:
    Mar 24, 2008
    Location:
    Red Sox Nation
    #22
    I've been using Lubbo's Fan Control in Windows 7 (Ultimate, 64-bit) for a while now and pleased with the results. I like the GUI option as well as controlling the fan speeds based on the temperature of the CPU/GPU.
    http://sourceforge.net/projects/lubbofancontrol/

    Although it appears that this application only works with Nvidia GPU's (sorry MBP 2011 users) :(
     
  23. mediasorcerer macrumors regular

    Joined:
    Oct 30, 2010
    #23
    zzzx

    hey can u give us a rundown on exactly how to enable it in windows?ive tried several times,navigating to desktop folder of unzipped macfan ,doing the command line-macfan.exe=but no such luck so far,would u put exactly the right way for me?.ps there is also lubbos windows fan control too,google it,
     
  24. dxerboy thread starter macrumors member

    Joined:
    Oct 28, 2007
    #24
    Hey there, sounds like you're doing the right thing. When I'm in the correct directory in cmd, per their instructions, I enter:

    macfan 3000

    Make sure you are running cmd as an administrator.

    Thanks to you and the others for the heads up about Lubbo too. It works great, and the GUI is a little nicer... oh and FYI for those wondering Lubbo works fine on my 2011 13".
     
  25. mediasorcerer macrumors regular

    Joined:
    Oct 30, 2010
    #25
    my pleasure,anything to help out a fellow mac user why not already?

    thanx for creating post here,the more the merrier,and this forum is great,i like the vibe,cheers from me too,good luck with your apple windows7:book pro portable fan forced oven!!!--lol:D
     

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