SMC FAN Issue, Stuck on 2000

Discussion in 'MacBook Pro' started by Asdasdisback, Apr 13, 2013.

  1. Asdasdisback macrumors newbie

    Joined:
    Apr 4, 2013
    Location:
    Rome (Italy)
    #1
    Hello guys! Today I bought a rMBP early 2013 and everything was fine, but now i have a problem.

    I've tried SMC fan control, to see how the .app worked, and I've Unininstalled it immideatly because I didn't like the app at all.. but now, my Fans are stuck at SMC Fan Control Default, around 2000 and 1900 for the right fan, how do I put the OS back in control of the fans? I've tried SMC Reset

    What I've done is (Reset the computer multiple times, Boot it while pressing Option-Control-Shift + Power Button)

    Deleting the SMCfancontrol.app and any other thing that would actually look like that app.

    But still, even after opening heavy applications such as compressor and putting them on work, or doing Geekbench (Stress Test) The Temperature rise up to 104° but the Fans still stuck on 2000

    I really don't know what to do, if you could help me i'll be glad, I know very little of mac and didn't know that smcfancontrol was so evil
     
  2. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #2
    Your fans won't necessarily spin faster immediately with spikes in temps, but if high temps are sustained, they will spin faster as needed to keep temps within a safe operating range. smcFanControl does not prevent fans from spinning faster, but only adjusts the minimum speed higher than 2000. Your fans are fine.

    If you're deleting any app, the most effective method for complete app removal is manual deletion:
     
  3. Asdasdisback thread starter macrumors newbie

    Joined:
    Apr 4, 2013
    Location:
    Rome (Italy)
    #3
    I'm just a little bit afraid because when I've opened programs like AVID or doing some stuff with Compressor, the temperature would reach 90 - 104° but the Fans would go around 2500 - 3000, even 4000 when doing Geekbench Stress

    but now after i've installed that damn app, even after an SMC reset the fans stay down to 2000 even with Geekbench stress, that puts everything on 100%.

    I'm not 100% sure that my fans are "fine" right now :S how can I be sure everythings all right?
     
  4. adnbek macrumors 65816

    adnbek

    Joined:
    Oct 22, 2011
    Location:
    Montreal, Quebec
    #4
    Reset the SMC: http://support.apple.com/kb/ht3964
     
  5. B... macrumors 68000

    B...

    Joined:
    Mar 7, 2013
    #5
  6. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #6
    Even if you hadn't uninstalled smcFanControl, it would not prevent your fans from spinning up as needed. It only allows you to increase the minimum fan speed; nothing more. You don't have to worry about it. Just let your Mac take care of itself. It will manage temps and fans without user interference.

    The Intel processors used in Macs are designed to automatically shut down to prevent damage if they truly overheat. CPU Tjmax = 105C (221F), GPU Tjmax = 100C (212F) on i3, i5, i7 processors. (Source: Intel)

    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 your fans are 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 (except the new MBP with retina display, which has intake vents along the sides at the bottom). 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. Asdasdisback thread starter macrumors newbie

    Joined:
    Apr 4, 2013
    Location:
    Rome (Italy)
    #7
    GGJstudios thanks for your Reply, , I'm panicking because i've spent over 2800 today and didn't want to ruin my machine for a damn app like that.


    Anyway now, I've downloaded SMC Fan Control again, and Deleted it, Again.

    Now when I test Geekbench Stress, everything goes up to 100% and Even the fans now go up ( Thank god ) I hope everythings allright now

    The problem was, the the heat was increasing but the fans didn't change even when it reached 104°

    I know I don't have to worry, these high temperatures are normal on a retina macbook, but just the Fans didn't do nothing, and i was worried it was a fault of the wrong installation of the app.

    I'm not sure everything is still working fine, I'm still not sure.

    Edited,
     
  8. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #8
    You don't have to worry about ruining your Mac, as it would automatically shut down to prevent damage if temps ever reached an unsafe level. So even if a fan failed, it still wouldn't ruin your Mac.
     
  9. swerve147 macrumors 6502a

    swerve147

    Joined:
    Jan 12, 2013
    #9
    Reinstall SMC Fan control, test out the higher settings to make sure the fans are OK, then restore the fans to default settings and uninstall the SMC Fan Control per GGJstudio's exact instructions.
     
  10. adnbek macrumors 65816

    adnbek

    Joined:
    Oct 22, 2011
    Location:
    Montreal, Quebec
    #10
    Oops, missed that part. My bad.

    ----------

    SMC Fan control shouldn't do that though. What it does is sets the minimum fan speed. It has no control over max speeds.

    Although it hasn't been updated in quite a while, it may not be fully compatible with newer Macs. Works fine on my 2011 Mini.
     
  11. swerve147 macrumors 6502a

    swerve147

    Joined:
    Jan 12, 2013
    #11
    It works fine on the rMBP. As far as I can tell at least, my fans seem to ramp up as expected, i.e. at a steady 80-85 the fans will kick up to ~4,000 RPM, and at a steady 90-95 will go full bore ("steady" being the key. Temp spikes will not trigger the fans, steady high temps will).
     

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