The new iMac is a lot noisier!

Discussion in 'iMac' started by Darajavahus, Jun 16, 2017.

  1. Darajavahus macrumors member


    Aug 8, 2015
    Did you guys see already this video? So not only takes lot more power like I wrote in my previous thread, it's now confirmed it's noisier than before, go to 3:01, just noise 3:40, so frustrating
  2. BornAgainMac macrumors 603


    Feb 4, 2004
    Florida Resident
    Might just be a defective iMac and could be replaced for free. Do a demo of the iMac Pro in 2018. Get the 18-core model. See if it is the same noise level. If the maximum sound from the fans is the same as your video, I will get one and if the memory and storage is easy to replace.
  3. Moriarty macrumors 6502

    Feb 3, 2008
    His old iMac was a 3.2 GHz i5-6500 (Turbo to 3.6 GHz). It's not a fair comparison. A 4.5 GHz processor is hotter and noisier than 3.6 GHz processor.

    If you want a machine that's quiet under heavy CPU load, don't get the i7.
  4. Ursadorable macrumors 6502


    Jul 9, 2013
    The Frozen North
    What the point of having the top of the line iMac having the worse sound levels. People buy the i7 to increase the usable lifetime of the iMac.
  5. inhalexhale1 macrumors 6502a

    Jul 17, 2011
    Ridgewood, NJ
    People buy the i7 because they either actually benefit from the power or because it's the best option and they
  6. Moriarty macrumors 6502

    Feb 3, 2008
    Yeah, pretty much this. ¯\_(ツ)_/¯

    I got the i5 7600K / Radeon Pro 580 model. ETA Monday. Will be happy to report on the thermals.

    The i7 model can trigger the fans with CPU load alone (see the video above -- looks like cinebench CPU is all that is running). From anecdotal internet reviews, previous i5 models haven't been able to trigger the fan with CPU alone.

    Fingers crossed that all my coding (I do some intensive MATLAB) and photo editing will be done in silence, and only the occasional game I play will spin the fan at a moderate rpm...
  7. Falcon80 macrumors 6502

    Oct 27, 2012

    Thanks. Looking forward to your review of the i5.
    --- Post Merged, Jun 16, 2017 ---
    Shouldn't it be quiet under low load? Some reviews are saying the noise level is audible even when not under heavy load.
  8. Zapp21 macrumors newbie

    Oct 17, 2014
    I'm also interested in the i5 7600K 3.8Ghz noise level.
  9. Swissness macrumors newbie

    Dec 5, 2016
    I'm starting to suspect I may have hearing problems.
  10. dlewis23 macrumors 6502a

    Oct 23, 2007
    I own two and I can tell you it's not noisier then the previous 2, 5k iMac's.

    It's not noisier because the GPU doesn't get very hot under load. I can only get the fan to spin up to around 1800 RPM while doing heavy gaming or work.

    Go get a iMac with the m295x and then talk about how loud it gets. It's quite obvious with your latest posts you don't want a new iMac.
  11. jerwin macrumors 68020

    Jun 13, 2015
    yeah, on my 2014 i5 it takes something like Prime95 stress-- and only after 3-4 minutes. Plus, although the 1500-2400 rpm band is noticeable, it's nowhere near as loud as 2700 rpm. The m290x GPU will trigger the fan, at full blast, given a non trivial workload. I guess that's what "Music' is for.
    Cinebench isn't enough to even take the fan above idle. Of course, the score isn't particularly boastworthy either.
  12. jerwin macrumors 68020

    Jun 13, 2015
    with an spl meter, placed on the stand, with the mic between screen and support, (ie. far closer than one usually computes)
    1200 rpm 41.6 dB (too low to meter)
    1500 rpm 41.6 dB (too low to meter)
    1800 rpm 47 dB
    2400 rpm 53 dB
    2700 rpm 56.5 dB
  13. PieTunes, Jun 16, 2017
    Last edited by a moderator: Jun 17, 2017

    PieTunes macrumors 6502


    May 6, 2016
    San Diego, CA
    At any rate, when I get my iMac delivered soon, I'm curious to see just how noisy the thing gets when pushed. Wish I had both an i5 and i7 iMac side by side for comparison.
  14. badlydrawnboy macrumors 65816

    Oct 20, 2003
    Wondering whether I should get i5 or i7. I do a lot of recordings with Screenflow; would be nice if the fan didn't kick on. (Im getting an SSD.) also do quite a bit of photography with LR and PS, so was leaning toward the 4.2 i7.
  15. Falcon80 macrumors 6502

    Oct 27, 2012
    i have the same dilemma.. Still waiting to see more reviews on i7.
  16. PortableLover macrumors 6502a

    Apr 14, 2012
    Seems louder then my 6 core xeon under full load. Anyway that fan noise is to be expected on a i7 especially in a smaller AIO chassis. As long as it doesn't throttle, I'd personally be fine with the noise.
  17. wesleyh macrumors 6502

    Mar 23, 2007
    I hear a second sound after half an hour, it's sort of like a broken fan that makes a constant whirring ticking sound... Anyone else?
  18. fokmik macrumors 68040

    Oct 28, 2016
    the i5 3.8+580 is running a lot cooler even in games than i7+580
    Ambient temp around 24C, but the i5+580 never goes over 90C so the fans are remaining at 1200rpm-1300rpm max
    but with the i7 i always get 95C after 1 min after starting the app, and the fans goes at 2100rpm and settle after that at around 1800rpm
  19. pookitoo, Jun 18, 2017
    Last edited: Jun 18, 2017

    pookitoo macrumors regular


    Apr 16, 2015
    And it’s hard to know if you can have better performances with i5 or i7
  20. Falcon80 macrumors 6502

    Oct 27, 2012
    You have both setup to compare?
  21. Zapp21 macrumors newbie

    Oct 17, 2014
    Very useful information, thank you! So I'll go for the i5 3.8 then - silence > future-proofness
  22. omenatarhuri macrumors 6502a

    Feb 9, 2010
    Wow so happy I ordered the i5
  23. Glideslope, Jun 18, 2017
    Last edited: Jun 18, 2017

    Glideslope macrumors 603


    Dec 7, 2007
    A quiet place in NY.
    The 7th Gen i5 is no slouch. I'd also order that config unless I was going to work on 4K video every day. The 7700k does do 4K quite a bit faster. :apple:
  24. bry223 macrumors regular

    Mar 1, 2004
    I've had mine for 4 days so far. I haven't even heard the fan at all yet. I've done some 4k editing in FCP, as well as some heavy gaming in both OS X and Bootcamp.
  25. BuCkDoG macrumors 6502

    Jun 13, 2013
    Are you on the i5 or i7? I plan on playing WoW and CS GO with my config. I ordered the i7 512 SSD 32 ram (OWC) not apple lol, and the 580. Should I be worried about the fan?

Share This Page