27" 3.8 Fan Noise Really?

Discussion in 'iMac' started by xzebra, Apr 25, 2018.

  1. xzebra macrumors newbie

    Joined:
    Feb 20, 2018
    #1
    I am looking to purchase either a 3.5Ghz or a 3.8Ghz 2017 27" iMac and want to stay away from the 4.2Ghz due to fan noise.

    Can anyone please tell me if the 3.8 is as bad as 4.2 in the fan noise category/temp? I really like the fact that the 3.8 has the Radeon Pro 580 with 8GB, but don't think I can live with the fan noise.

    Seems like all forums and articles are only specific to the 4.2 which has nearly the same power consumption.
     
  2. mja1228 macrumors newbie

    mja1228

    Joined:
    Apr 14, 2018
    Location:
    NYC
    #2
    I just bought the 3.8 and there’s no fan noise.
     
  3. xzebra thread starter macrumors newbie

    Joined:
    Feb 20, 2018
    #3
    Thanks mja1228.

    Out of curiosity, what kind of loads have you put on it?
     
  4. mja1228 macrumors newbie

    mja1228

    Joined:
    Apr 14, 2018
    Location:
    NYC
    #4
    to be fair, not a lot at all.. I don't do anything heavy with it
     
  5. spencecb macrumors 6502a

    spencecb

    Joined:
    Nov 20, 2003
    #5
    I haven't noticed my 3.8 GHz i5 get very loud. The fans were running while playing a game but because of the audio could not hear them, and they died down within about 20 seconds of exiting the game.
     
  6. J.Gallardo macrumors regular

    J.Gallardo

    Joined:
    Apr 4, 2017
    Location:
    Spain
    #6
    Exactly same behaviour here. I would point that during normal tasks, default fan revs are inaudible. Perhaps a very low hiss in a very quiet room... only perceptible when you shut off and notice the slight difference.
    Quite happy with 3.8+R580 and not having chosen the i7 upgrade.
     
  7. SkyLinx macrumors member

    SkyLinx

    Joined:
    Mar 24, 2018
    Location:
    Espoo, Finland
    #7
    I have the 3.8 and I never heard the fan. Temp is at 46-48C while surfing the Internet or programming , never seen it above 70C during video editing/encoding. Really happy with it.
     

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