how loud is a new mac pro

Discussion in 'Mac Pro' started by jondunford, Dec 11, 2013.

  1. jondunford macrumors 6502

    jondunford

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    #1
    does a desktop fan only come on when doing heavy tasks like with a laptop or is a desktop fan on all the time




    coming from a macbook pro/macbook air (quiet house)

    will i be disturbed by the sound?




    thanks
     
  2. maflynn Moderator

    maflynn

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    #2
    Since the nMP is not in people's hands yet, we do not know the answer.
     
  3. jondunford thread starter macrumors 6502

    jondunford

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    #3
    ok thanks, do you know the answer to the first question

    as i have never owned a desktop since pre 2000 and i am considering getting one again

    i am interested in generally do desktop fans (iMac/old mac pro) come on at all times or are they similar to laptop fans where they only become audible when working hard

    thanks
     
  4. maflynn Moderator

    maflynn

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    #4
    My old MacPro had its fan running all the time. It was not terribly loud but it was not very quiet either.
     
  5. jondunford thread starter macrumors 6502

    jondunford

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    #5
    ok thanks ;)
     
  6. Cubemmal macrumors 6502a

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    #6
    This hands on from a month ago claims it's insanely quiet, but that's hyperbole as there's really no way for them to reliably tell in that environment. Interestingly they note that the outside case of the nMP gets quite warm.

    However I think we can be assured that it will be extremely quiet. Apple says it has the same idle noise performance of the Mini - about 15 dB if I recall. This means that if you have it behind a monitor you won't hear it in a very quiet environment. I have a mini in that configuration that still has a spinning hard drive and that's the only component I can hear.

    Given the design - the only moving part is an extremely large 6" fan pulling hot air upwards - I think it will actually be astonishingly quiet. I'm a computer noise freak, having worked with them so long I'm driven crazy by any noise from these components. My old MP - a 2009 Quad core, is pretty quiet for a workstation but right now I can still hear a low hum from it, even though it is on the floor. And occasionally I still hear it access the CD rom for some reason (a small click sound). Luckily games have a sound so when the GPU fan spins I don't notice it above the game audio.

    The other aspect is the nature of the noise. When you do hear this it will probably sound like a dull "woosh", so may actually be somewhat pleasing. My old Mac Pro doesn't have a lot of high frequency content in it's sound thankfully, but those five odd fans and the one hard drive do make a muddy sound that gets on my nerves eventually.

    This is probably the main reason I'm looking to get a nMP - for software development I want a completely quiet computer and I expect this to be it.
     
  7. tripleg macrumors member

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    Dec 8, 2010
    #7
    I have a feeling Apple has already thought about making the new Mac Pro very quiet. A much bigger concern is how loud the external HD enclosure fan is. Those are prone to be loud and whiny from my experience.
     
  8. Cubemmal macrumors 6502a

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    #8
    I have all my storage on NAS (Synology and Drobo) in a small IT room off my office, so I can't hear it. For local storage I only use SSD. That's one way to manage it.

    I've spent a lot of time looking into noise mitigation, the only way to reliably and easily manage noise is to remove it from the source.
     
  9. Consultant macrumors G5

    Consultant

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    #9
    I don't think the new Mac Pro is going to be as quiet as the fanless G4 Cube (where the only thing you hear is the HD), but should be very quiet compared to regular desktops.
     
  10. ABCDEF-Hex macrumors 6502

    ABCDEF-Hex

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    #10
    There is a page on acoustics on the new Mac PRo site

    http://www.apple.com/mac-pro/

    Just scroll down on the overview. They usually don't publish specs unless they can back it up.
     
  11. jondunford thread starter macrumors 6502

    jondunford

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    #11
    hi

    thanks for all the responses

    i see "n db" a lot in my research of how loud it will be

    how much is 15 db in relation to the DB of a macbook pro fan?

    thanks :D

    ----------

    yea thanks for directing me there you made me want it even more now:cool::rolleyes:
     
  12. Cubemmal macrumors 6502a

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    #12
    It depends. Go look up the noise spec for the MBP, Apple probably has it on their page.

    As they said it is as quiet as the mini at idle. And as I mentioned the spectrum of the noise is as important as the absolute level. Basically it's going to be extremely quiet, beyond that you'll have to evaluate it in your environment as comparing numbers at this point won't tell you much.

    ----------

    Perhaps. I'm not familiar with the Cube, but I find hard drive noise as disturbing as fan noise most of the time. Because it's not constant you don't tend to tune it out. Given everything I think it will be the quietest Mac ever, but we'll have to see.
     
  13. flat five macrumors 601

    flat five

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    #13
    generally, yes.. or, they speed up as the workload intensifies.

    i think the design of the nmp fan allows it to move more air than a standard design while spinning slower..

    so the fan will probably always being rotating while the computer is on even if you haven't assigned any tasks to it (cooling things such as the power supply unit).. it's just going to be spinning slowly..
    as the components heat up, the fan will speed up too.. but still at lower rpm than standard designed fans will require.
    and generally -- the slower a fan rotates, the quieter it is.
     
  14. propower macrumors 6502a

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    Jul 23, 2010
    #14
    I am also a noise freak :)

    12dBA for idle is quiet - very quiet - very very quiet - the mac mini is 14dBA at idle and is very quiet.! A person with sensitive hearing should be barely able to discern this (or not) at lets say 5' distance. There is also a chart on the nMP page indicating noise under load of I approximate ~18dBA. If they hit this - the noise performance under load will also be VERY good.

    But we will have to wait to hear it :)
     
  15. Lesser Evets macrumors 68040

    Lesser Evets

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    #15
    I'm pretty sure it will be very quiet. Compared to older computers.

    My old 2003 MDD tower was like a jet engine! My 2006 MacPro is fairly loud due to fans pumping high because of besl mod. My 2011 Mini is silent. With only one far, you probably won't have much noise, but there will be something.
     

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