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  1. #1
    MacPro's annoying humming noise

    Member Since
    Feb 17, 2007
    Posts
    25
    MacPro's annoying humming noise
    I was blown away by how quiet it was when I first turned it on but after 3 months, I have to constantly tap the front grill or CD door to stop the hum. Any ideas or solutions would be greatly appreciated.

    Thanks,

    jerry

  2. #2
    MacPro's annoying humming noise

    Member Since
    Oct 27, 2005
    Posts
    4,702
    Quote Originally Posted by vlj9r View Post
    I was blown away by how quiet it was when I first turned it on but after 3 months, I have to constantly tap the front grill or CD door to stop the hum. Any ideas or solutions would be greatly appreciated.

    Thanks,

    jerry
    If you can quieten down your Mac Pro's noisy hum by tapping the front grill or CD tray, then the following link probably doesn't refer to your issue ... thought I'd post it anyhows:

    http://www.xlr8yourmac.com/systems/M...c_pro_ram.html

  3. #3
    MacPro's annoying humming noise

    Member Since
    Sep 11, 2006
    Location
    Twin Cities, Minnesota
    Posts
    28
    Specs:
    15" Unibody Mac Book Pro, 2.66 Ghz Mac Pro w/ 2gb RAM. 1ghz G4 Powerbook w/ 768 RAM.
    Jerry,

    I had/have this same problem. The thing sounded like the bulb on a high powered light pole. I opened the case up again and made sure all my hard drives were as snug as possible. It hasn't made a sound since. So open it up and just give a moderate push on the hard drive holders to make sure they are seated all the way and it might help.

    Howie J.

  4. #4
    MacPro's annoying humming noise
    gilesjuk's Avatar
    Member Since
    Apr 03, 2007
    Posts
    301
    Specs:
    Black MacBook 2GB, Mac Pro 2.66Ghz 3GB X1900.
    Quote Originally Posted by vlj9r View Post
    I was blown away by how quiet it was when I first turned it on but after 3 months, I have to constantly tap the front grill or CD door to stop the hum. Any ideas or solutions would be greatly appreciated.

    Thanks,

    jerry
    I would attribute that to the hard disk(s). 7200RPM is very fast and drives tend to oscillate.

    How many drives do you have?

  5. #5
    MacPro's annoying humming noise

    Member Since
    Apr 15, 2007
    Posts
    262
    I too am having this problem. I just now noticed it. I notice if I lift the rear latch, the humming stops.

  6. #6
    MacPro's annoying humming noise

    Member Since
    Apr 15, 2007
    Posts
    262
    Solved. It's the HD(s). I shut down, opened the case, slid the HD out, and just re-inserted it, making sure it was snugly in there. I closed the case up, booted up, no problem!

    How I figured it out: after a certain amount of time, the HD goes to sleep while the computer remains on. I noticed the humming disappeared when this happened.

  7. #7
    MacPro's annoying humming noise
    mac57's Avatar
    Member Since
    Apr 29, 2006
    Location
    St. Somewhere
    Posts
    4,560
    Specs:
    iMac 27" 3.4 GHz, 256 GB SSD, 2 TB HDD, 8 GB RAM
    CaptSaltyJack, just another benefit of owning a Mac. Try doing that to a typical PC (take the drive out and put it back). Darn near impossible unless you are comfortable with a unwiring it, unscrewing it..... Macs are so beautifully engineered relative to their PC competition. The inside of a PowerMac and a Mac Pro is a work of art. Amazingly well done.
    My Macs: iMac 27" 3.4 GHz, Mac Pro 3.2 GHz, PowerMac G5 Quad 2.5 GHz, G4 Cube with 1.2 GHz Upgrade
    My iStuff: 64GB iPhone 5, 64GB iPad4, 30GB iPod Video, 16GB iPod Touch
    My OS': Mac OS X Lion, Mac OS X Snow Leopard, Mac OS X Tiger, Mac OS 9.2.2, openSUSE 10.3
    I was on the Mac-Forums honor roll for September 2007

  8. #8
    MacPro's annoying humming noise

    Member Since
    Apr 15, 2007
    Posts
    262
    I've got ten years experience building PCs, so I have no problem removing a hard drive from a custom built PC..however, it sure is time consuming, depending on the case On some computer cases, it's easy.. others, it takes several steps.

    But not having to mess with power cables and SATA cables..thumbs up.

  9. #9
    MacPro's annoying humming noise
    gilesjuk's Avatar
    Member Since
    Apr 03, 2007
    Posts
    301
    Specs:
    Black MacBook 2GB, Mac Pro 2.66Ghz 3GB X1900.
    Working on PCs aint so bad. But SATA is a step backwards in terms of reliability.

    Most PC mobos ship with cheap SATA cables which have no clips to hold them in place.

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