iMac G3 buzzing sound

Discussion in 'PowerPC Macs' started by Yakuza, Nov 7, 2009.

  1. macrumors 6502a

    Yakuza

    Joined:
    Jul 24, 2007
    Location:
    Lisbon, Portugal
    #1
    Hey there!

    I have a iMAc G3 400 Mhz, it's pretty old this one and it was given by a friend, since the day i turned it on (with OS9) there was, and still is, a buzzing sound it's not very loud, but in long term it get's annoying, my question is, this buzz is from the hard drive or is it from the cooling fans?

    I've already opened it, but haven't seen no fans lol

    Also, the hard drive, when booting, it makes a lot of noise reading from it, is it also a sign of damaged hard drive?

    Anyone had the same problem here?

    Thank u
     
  2. macrumors 65816

    Pixellated

    Joined:
    Apr 1, 2008
    Location:
    Dartford, UK
    #2
    I don't know where it is from, but the computer is passively cooled meaning no fans.
     
  3. Moderator

    stridemat

    Staff Member

    Joined:
    Apr 2, 2008
    Location:
    Southampton, UK
    #3
    A buzzing will either be a dying hard drive or a dying power supply unit. Either way you are going to have to spend money on fixing it.

    You could always take it to the apple store and get then to have a look.

    If it is the hard drive make sure that you are running a backup of all your files, just to be on the safe side.
     
  4. thread starter macrumors 6502a

    Yakuza

    Joined:
    Jul 24, 2007
    Location:
    Lisbon, Portugal
    #4
    Pixellated, didn't know lol :D

    If i change the hard drive (most obvious) how can i install a fresh osx?

    Do i need to have a install cd in the drive, when i first boot the imac with the new drive?

    sorry the question, it maybe simple, but i don't know how it's made!
     
  5. macrumors 68040

    MacHamster68

    Joined:
    Sep 17, 2009
    #5
    yes you need a install disc
    as the new drive comes empty without anything on it , if you dont have a disc look at ebay they are not expensive (there you might also find a good deal for a harddrive )
    you need a "ide" "ultra ata " harddrive
    and the old iMacs can only see a maximum 128gb
     
  6. macrumors G4

    Joined:
    Mar 4, 2006
    #6
    Very likely to be the HDD. There was a whole batch of first generation iMac DVs that left the factory with an extremely loud drive. I think it was a Seagate 10GB one, which made a constant high-pitched buzzing sound. I replaced mine with a 40GB IBM one and the reduction in noise levels was incredible.
     
  7. macrumors newbie

    Joined:
    Nov 16, 2009
    Location:
    Port Orchard, WA
    #7
    iMac G3 buzz

    In case there is any doubt: I bought a used iMac G3, Special Edition DV in 2000-2001. It is still running on the desk I never use in my room. Occasionally I update the software. I can tell it's running because it whines loudly and continually, it always has. I thought all iMacs whined like that and didn't find out until later that they don't. In any case, it is still going, I used it in my business until 2 years ago when my practice management software become a little too much for it. I have been trying to find someone who has successfully upgraded theirs 'cause I do think they are classic. I love the Mac mini idea but it appears it is very difficult and dangerous to try and use the CRT display. Most are recommending gutting the shell and installing a 15" flat screen.
     
  8. macrumors 68040

    MacHamster68

    Joined:
    Sep 17, 2009
    #8
    easiest options would be to get a upgraded board with a faster processor by some small companys (550mhz g4 was the biggest available ) but as they are out of production since years ,they are rare and only turn up every other year once at ebay .com and fetch astronomic prices
    the cheapest option would still be to get the latest iMac g3 logic boards 600/700mhz , 16mb vram graphics plus a 7200rpm harddrive for it

    i also heard rumrs about people sucessfully fitted board of the iBook g3 900 ,
    but only rumors and no evidence of it
     
  9. macrumors 65816

    CubeHacker

    Joined:
    Apr 22, 2003
    #9
    I'd have to hear the buzz, but typically Hard drives don't "buzz" - they emit high pitched whines when their bearings start to go, and they make "clicking" sounds as they read data from the head. A constant buzz can be coming from the power supply or the CRT.
     
  10. thread starter macrumors 6502a

    Yakuza

    Joined:
    Jul 24, 2007
    Location:
    Lisbon, Portugal
    #10
    yes, it's more like that a high pitch sound and the clicking sound, exactly!

    At the time the "buzz sound" was the only thing i've remembered lol

    But indeed it's a high pitch sound, high enough when i turn it off after, say 1 or 2 hours, it makes a real silence in the room.
     

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