Anybody else finding their Early 2008 fans a bit loud?

Discussion in 'Mac Pro' started by netdog, Jan 26, 2008.

  1. netdog macrumors 603


    Feb 6, 2006
    Do these things run all the time? My speeds seem in line with everybody elses,

    Exhaust 599
    CPU 499
    Power 639 at the moment
    HD 800 (three drives)

    But don't these things ever shut down? My temps seem very low. I'd prefer a little more heat and a little more quiet.

    Might a fix bring these numbers down as these boxes run so cool? It is under my desk, and I definitely hear it all over the room, not that it is loud like when a MPB fires up fans or compared to most desktops, but still. I expected something a bit closer to the iMac in DBs when I am not pushing it. Is something wrong?
  2. ill0gical0ne macrumors 6502

    Jun 17, 2007
    actually... I noticed that mine seems to be quieter than my Macbook... might just be me though...
  3. babboxy macrumors member

    Oct 5, 2007
    can't tell... I'm deaf from my old DELL
  4. blackgmc macrumors member

    Nov 2, 2007
    I can hear mine, it sits on top of my desk about a foot away. I only hear it in dead silence. So I guess its normal but it is louder then a 24" iMac 2.8GHz and Macbook Pro.
  5. newtech macrumors 6502

    Jun 2, 2007
    No, they never shut down because stable temperature is nearly as important as low temperature. Stable temperature requires constant airflow.
  6. Thomas S macrumors member

    Dec 30, 2004
    Dead silent with five internal hard drives (Seagate 7200.11 drives)... I'll bust out the decibel meter to give you a reading.
  7. mrcandy macrumors regular

    Nov 12, 2007
    Calgary, AB Canada
    Six internal drives and sitting on top of my desk about 18" away. I can only hear the fans if the room is quiet. Doesn't bother me at all. Much, much quieter than the G4, which was under the desk, the MP replaced.
  8. kirkbross macrumors 6502a


    Mar 6, 2007
    Los Angeles
    6 hard drives or are you including two optical?
  9. CalfCanuck macrumors 6502a

    Nov 17, 2003
    I can barely hear mine - situated down on the floor.
  10. mrcandy macrumors regular

    Nov 12, 2007
    Calgary, AB Canada
    Six harddrives plus the one optical it ships with. I've added the 5th drive in the spare optical bay and the 6th drive goes in the PCI slot area. Both attached to the spare ODD SATA ports.
  11. Infrared macrumors 68000


    Mar 28, 2007
    Any chance of putting up an mp3 of the sound so we can hear? :)

    It won't tell us how loud the sound is relatively speaking, but
    we'd get an idea of what type of sound it is. Would be interesting
    to hear, thanks. If anyone else can do likewise for comparison,
    that would be helpful too.

  12. phjo macrumors regular

    Jan 8, 2008
    I too was a bit disappointed to hear a disturbing noise coming from the mac pro (kind of weird resonance, easily heard a few meters away and that disappear when the case is open...)

    By allowing my harddrives to sleep, I definitely could hear the resonance go away, then I tested several configuration :

    My configuration : stock harddrive (seagate 320Gb) and two samsung spinpoint p166 (500Gb).

    With the stock harddrive alone : no problem, but it suffices to add one of the two samsung for this disturbing resonance to appear...

    The two samsung together : no resonance.

    So I'll be removing the seagate and keeping the two samsung...

    CCC is cloning the seagate right now...

    So for the OP, make sure the noise that bothers you is really coming from the fans.

    It might well be the harddrives instead...

  13. blackgmc macrumors member

    Nov 2, 2007
    You are right! It is the Hard Drive making the noise I Moved my stock western digital 320GB hard drive in Bay 2 and the noise and resonance lessend somewhat it was still there but a lot less.

    anyone suggestions on replacing the stock drive because it is kind of loud

    I have a 2.8 8-Core Mac Pro
  14. phjo macrumors regular

    Jan 8, 2008
    CCC finished its job,
    and I can now testify that the samsung spinpoint p166 (HD501LJ) is near silent... I have two of them in bay 2 and 3 (bay 1 being empty right now) and now I can't hear the mac pro (it is under the desk), which appears to be quieter than my lcd ! (yes, I can hear, somewhat, my lcd, a HP w22...) might give you some other ideas...

  15. absolution macrumors member

    Aug 30, 2007
    Did you use the Pro Caddy from to add that 5th drive to the 2nd optical bay?
  16. Infrared macrumors 68000


    Mar 28, 2007
    I'm not doubting what you say, but just out of interest, how can you
    know that the harddrives are asleep, but the fans are still going? :)

    Also, can the disk be forced to spin down?

  17. phjo macrumors regular

    Jan 8, 2008
    First of all the fans never stop when the mac is on !

    But, for energy saving consideration, the harddrives can be put to sleep, although you can't force it manually... You can just allow them to be put to sleep when they have been inactive long enough. (System preferences->Energy saving...)

    A harddrive spinning up is easily recognizable if you listen carefully, and a turning wheel for a few seconds waiting for some folder content to appear is quite sufficient proof the relevant harddrive had been put to sleep...

  18. Infrared macrumors 68000


    Mar 28, 2007
    Ah, thanks very much.

    I'm not sure the fans ever spin down during normal use for me, even
    with the prefs option ticked. Must be the way I work or something.

    Anyway, I've just experimented a little. With iStat running and visible
    I let the machine start to go to sleep. More or less all the noise
    from the machine disappeared - only a very slight hum was audible.
    At this point the screen had gone black, but the lights weren't yet
    slowly flashing. I jiggled the mouse and the display came back to
    life. I could see the fan speeds in iStat occasionally change by 1 or
    2 rpm, and the dashboard clock second hand was moving. So what
    do we have here? A silent machine, fans running, disk apparently
    sleeping. Conclusion: the disk alone is responsible for nearly all
    noise from the machine.

    It's a Seagate 7200.10 320GB 8Mb Cache model, btw.
  19. blackgmc macrumors member

    Nov 2, 2007
    Any Suggestions on a Hard Drive brand that is quiet ? to replace this noisy hard drive ?
  20. donharriss macrumors newbie


    Apr 4, 2007
    Southern Oregon
    This is the quietest mac I've ever owned. It sits right under the desk and unless I put in a disc I really don't know it there and I do audio all day long so I'm hyper sensitive to this issue.

  21. GoKyu macrumors 65816


    Feb 15, 2007
    New Orleans
    My machine sits on the floor maybe 2 feet away from me, and I can't hear it unless there's no other noise in the room...and even then it's just barely audible. This is THE quietest computer I've owned, other than my old C64 (which didn't have fans :))

  22. bigbird macrumors 6502

    Aug 17, 2007
    The fans do stop when you put the computer to sleep, at least on my PowerMac G4 they do.

    Of course you can force the hard drives to sleep. Do you really have a Mac?
    Under the Applemenu, simply select "Sleep".
  23. phjo macrumors regular

    Jan 8, 2008
    You mean the harddrive I guess, not the fans. Indeed, if you have only one harddrive, the 2Gb stock ram and are working on your mac, most probably your harddrive would never be allowed to sleep... (Or you have to do very, very little on your mac...)

    Yep, the same one that is now waiting on my desk for some future use... As an external hd maybe...

  24. phjo macrumors regular

    Jan 8, 2008
    Thank you for your very informative answer... :rolleyes:

    Of course, when I wrote <<the mac is on>> I meant not sleeping... (my macpro is configured never to go sleep by itself, but the screen and harddrives can)

    There's not much difference anyway between putting the computer to sleep and shutting it down when the said computer reboots by itself when awaken... (except shutting it down properly is certainly better...)

    Mine did that for the first time this morning :mad:

  25. Norco macrumors regular

    Dec 9, 2007
    My MP is whisper quiet, if there are ANY other PC's on in the room, then those fans cover up any sound that comes out of my MP. With that being said, even in dead silence it is very quiet.

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