smc Fan Control - Any Risk in use?

Discussion in 'MacBook Pro' started by hapeninhap, Jun 18, 2007.

  1. hapeninhap macrumors newbie

    Joined:
    Jun 5, 2007
    #1
    I have a brand new 15" and absolute love it except for the heat sometimes.

    I was just wondering if by using smc fan control you risk damaging the fans or shortening their life by keeping them at higher level speeds.

    thanks guys :)
     
  2. gr8tfly macrumors 603

    gr8tfly

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    Oct 29, 2006
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    #2
    I have 17" C2D MBP and they've always been where they need to. When rendering or other intensive tasks, they might get up to close to 6000RPM. Normally, they're at 2000. Even when it's been at max for hours, it's still usable and the keyboard and palmrest are cooler than my PB G4 1.67. I also keep it on a CoolPad or equivalent, so there is good air circulation underneath.

    edit: they are totally silent at 2000 RPM. I usually can't even hear them until they're above ~3200. (and my hearing is excellent)
     
  3. 66217 Guest

    Joined:
    Jan 30, 2006
    #3
    Personally I wouldn't recommend it. But I never saw someone saying it damaged his/her MBP.

    You may as well give it a try and see of it helps you. I prefer a little heat than the noise of the fans.

    But this comes from someone who rarely use his laptop in his lap. I do want to have children, you know?;)
     
  4. dex22 macrumors regular

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    Jun 17, 2003
    Location:
    Round Rock, TX
    #4
    There is no risk in use.

    It only has the ability to make your fans run faster than expected, i.e. making your machine cooler.

    It does not have the ability to make the fans run slower than Apple intended.
     
  5. showtime macrumors 6502

    Joined:
    May 10, 2007
    #5
    so you probably can't stress out the fans if you run it too fast? Does smc limit how much you can increase fan speeds?
     
  6. qksilver macrumors newbie

    Joined:
    Jun 9, 2007
    #6
    If you purchased applecare you have a 3 year warranty. If the fans fail within 3 years apple will fix it. I am using smc fan control on my 2.2ghz MBP and it helps to keep it alot cooler.
     
  7. dooyou macrumors regular

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    Jun 5, 2007
    Location:
    Munich
    #7
    Thanks for answering! I think a lot of people doesn't know that. SMC Fan Control does not work as Fancontrol or Coolbook.
     
  8. janey macrumors 603

    janey

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    Dec 20, 2002
    Location:
    sunny los angeles
    #8
    Isn't that particular concern not in regards to overheating components but rather stressing out fans and shortening life as a result by running them too fast for too long?
     
  9. rrijkers macrumors 6502

    rrijkers

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    Jun 6, 2007
    Location:
    The Netherlands
    #9
    omg, fans can run like for ever, it's not that they will get super dusty inside the machine right?
     
  10. dooyou macrumors regular

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    Jun 5, 2007
    Location:
    Munich
    #10
    Yes, you're right. I only use SMC Fancontrol to see the temperatures and the fanspeed. i never used that program to run the fans faster as apple provided that.

    it is better to run a program like fancontrol or coolbook for undervolting the cpu. it's also better for the fans, too. but i don't know their normal lifetime.
    but another point is, that the macbook pro are computer for powerusers. these computeres are designed for using them under stressful work (i hope so :)).
     
  11. ShStylo macrumors member

    Joined:
    Jun 6, 2007
    #11
    I'm currently putting them at a minimum of 2250 rpm.. is that too high?.. that way I can actually hit about 48 - 52 celcius when I am running lil to no applications... would a constant 2250 rpm.. a 250 rpm increase from default be a lil too much on the fans?

    Also what is a good stand for my MBP?... I don't have an external keyboard.. but if I was to put my MBP on a cooling stand I'd have to use an external keyboard?.. is there one that will allow me to still use the MBP keyboard AND put it on some sort of a external cooling device?..

    thanks guys.. :D
     
  12. dooyou macrumors regular

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    Jun 5, 2007
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    Munich
    #12
    :D i don't know your working place.
     
  13. janey macrumors 603

    janey

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    Location:
    sunny los angeles
    #13
    are you kidding me? i've had a few fans wear out, and I've seen a bunch wear out, mostly when manufacturers or idiot noobs building PCs use cheapass fans.
     
  14. gr8tfly macrumors 603

    gr8tfly

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    Location:
    ~119W 34N
    #14
    FYI quick and dirty reference: running Safari and Mail, and a few other utilities

    I have MBP sitting on a CoolPad. (17" C2D 3GB RAM) (it's just rubber bumpers - no cooling itself)

    2007-06-19 02:00:51 -0700

    SMART Disk Hitachi HTS541616J9SA00 (SB2401SJGD6T3B): 82.4℉/28.0℃
    Battery 0 Voltage: 12.4220 V
    Battery 0 Current: 0.00 A
    Battery 0 Current Capacity: 6266 mAh
    Battery 0 Total Capacity: 6525 mAh
    Graphics Processor: 0 %
    Enclosure Bottomside: 78.8℉/26.0℃
    CPU Core 1: 109.4℉/43.0℃
    CPU Core 2: 113.0℉/45.0℃
    CPU Clock Frequency: 1500 MHz
    Ambient Air: 93.2℉/34.0℃
    CPU A Temperature Diode: 122.0℉/50.0℃
    Graphics Processor Chip 1: 109.4℉/43.0℃
    Graphics Processor Heatsink 1: 116.6℉/47.0℃
    Main Heatsink 1: 111.2℉/44.0℃
    Main Heatsink 2: 96.8℉/36.0℃
    Memory Controller: 104.0℉/40.0℃
    Memory Riser Card A Position 1: 120.2℉/49.0℃
    Left Fan: 1998 RPM
    Right Fan: 1995 RPM
    Battery Power: 12.6008 V
    CPU A: 0.9664 V
    Graphics Processor: 0.9483 V
    Battery Power: 0.03 A
    CPU A: 4.87 A
    Graphics Processor: 1.51 A
    Battery Power: 0.4 W
    CPU A: 4.8 W
    Graphics Processor: 1.4 W
    Ambient Light 1: 88
    Ambient Light 2: 73
     
  15. rrijkers macrumors 6502

    rrijkers

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    The Netherlands
    #15
    Omg really, are the mbp interiors so easily full of dust from the inside? :confused:
     
  16. janey macrumors 603

    janey

    Joined:
    Dec 20, 2002
    Location:
    sunny los angeles
    #16
    Uh what the ****?

    Fans have nothing to do with moving dust (although, fwiw I think fans introduce more dust than anything), fans are for cooling the system.
     
  17. keenkreations macrumors regular

    Joined:
    May 20, 2005
    #17
    Wow...this topic has become all wonky. All these things being said at once.
    Anyway, I run smcFanControl and I run it all the way up to max (6000 RPM) when I'm doing some intense taxing on the MBP (games, movie editing, etc).
    Running your fans and whatever speed is more preference. When it DOES keep your laptop running cool, it makes a lot of noise. And with all things, as a previous poster said, FANS do die...its just a matter of time. My best guess is the fans are sleeve-bearing, which means while that it would be a lot more quiet than ball bearing fans, they typically do not last as long. (From what I know about fans)
    For stands, you can use the mStand (I use that now), even without the external keyboard. But you can use any old thing to elevate/circulate air underneath your laptop.

    For the record, I opened up my MBP to replace the wireless Airport card to upgrade it to the Wireless N card (Mac Pro Airport Extreme) and I did not see significant amounts of dust in the notebook. Mostly around the speaker grille openings and fan blades. Everything else looks pretty clean.
     
  18. bobcan macrumors 6502a

    bobcan

    Joined:
    Jan 8, 2007
    Location:
    Sunny but Cold.. Canada
    #18
    Re: Dust and Fans...

    After reading thru many answers on this post it really does matter when your environment is like... Coming from a Live Pro Audio background, I have thru past 20 years cleaned/ repaired many Audio Amplifiers (and now Digital Processors) which their Fans have generally been clogged by Smoke and Dust, if that is where they are used!!

    The absolute #1 cause of "dust" trouble would be if you smoke near this device... the Fans will chop up the Smoke and it Will stick to everything inside after that... Smoke Molecules are much smaller and lighter than regular housedust or Dirt... A clean House is a Happy House... same goes for Computer Environment!!
     
  19. eenu macrumors 65816

    eenu

    Joined:
    Aug 11, 2006
    Location:
    Manchester, UK
    #19
    if you want to increase your fan speed do it. Your fans are not going to wear out significantly quicker doing an extra 250-500rpm!

    Can't believe there are so many people crying about their fans dieing quicker..... if your crying about that why have you not returned your laptop to Apple crying it is to hot?

    Surely that is the bigger issue for you?
     
  20. martinmartin macrumors 6502

    Joined:
    Jun 5, 2007
    #20
    I installed SMCFan Control yesterday on my 2.4 SR MBP. Initially, fan speed and temperature showed for both the left and right side. Now, it is only showing for 1 side??

    Anyone know how to get both sides showing again? Thanks.
     
  21. martinmartin macrumors 6502

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    Jun 5, 2007
    #21
    Any ideas on how to get both fans showing in SMC fan?

    Thanks
     
  22. dooyou macrumors regular

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    Jun 5, 2007
    Location:
    Munich
    #22
    Are you sure that your second fan is still working? Normally, smc fancontrol shows both fans.
     
  23. cobravap macrumors regular

    Joined:
    Oct 30, 2006
    #23
    It would show speed for both, but only 1 temp for ur cpu (as you only have 1)
     

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