Fans spinning at only 1000RPM

Discussion in 'MacBook Pro' started by wildwobby, Mar 27, 2008.

  1. wildwobby macrumors member

    Nov 3, 2007
    I'm used to seeing my relatively new Penryn MacBook Pro's fans spin at 2,000RPM minimum. I just finished a little gaming in bootcamp and came back to OS X, and the fans are only spinning at 1000RPM. This seems peculiar seeing as how the temps are/were: 68 CPU/80 GPU. I understand these temps arent to terrible, I've seen worse, but still, 1000 RPM? I used to get 2000RPM when doing nothing but web browsing in OS X.
  2. bcaslis macrumors 68020

    Mar 11, 2008
    Something is wrong. The minimum speed is 2000 rpm, there's no way they should be going lower by themselves. Did you run anything else to lower the fan rpm?
  3. chrisbeebops macrumors regular

    Jun 8, 2007
    Try restarting your fan program and/or your computer. Most likely your fan program is not reading the sensors correctly.
  4. e12a macrumors 68000


    Oct 28, 2006
    try restting SMC and PRAM.

    1. pull battery and power adapter
    2. without power, hold the power button for 5 seconds

    command + option + P + R while booting. Listen for 2nd chime, release.
  5. Freyqq macrumors 601

    Dec 13, 2004
    the min fan speeds in osx are 2000 but in bootcamp it's 1000. The remedy is downloading programs to control the fans yourself. Download fan control for osx and input remapper for windows in order to control your fans manually.
  6. alphaod macrumors Core


    Feb 9, 2008
    I don't think it's an issue. Once your CPU hits 80 you fans will sound like a jet engine.
  7. wesrk macrumors 6502a

    Nov 4, 2007
    same problem here, happens once I come back from using Xp..

    will the try solutions that you guys gave

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