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  1. #1
    G3 Power Button on Keyboard to Start Up
    willwinuk's Avatar
    Member Since
    May 22, 2009
    Posts
    35
    Specs:
    iMac 27" 3.4 GHz i7, AMD Radeon HD 6970M 2048 MB, 8 GB Ram running Mac OS X Lion 10.7
    Question G3 Power Button on Keyboard to Start Up
    Hi,
    I have a iMac G3 and when I try to boot up using the power button on the keyboard nothing happens. But I think the button still works as when I press it when I am booted in to tiger it asks to confirm I want to shut down.
    Is there a way to fix this?

  2. #2
    G3 Power Button on Keyboard to Start Up
    harryb2448's Avatar
    Member Since
    Nov 28, 2007
    Location
    Nambucca Heads Australia
    Posts
    20,014
    Specs:
    iMac i5 2.7GHz, 16GB memory, OS 10.10.5
    Well it is getting pretty old technology. Firstly are you connected directly to the iMac and not through a USB hub? If you are, then try running Repair Permissions and see if there is any improvement.

    Failing that see if you can access another keyboard.

  3. #3
    G3 Power Button on Keyboard to Start Up
    Mac SK's Avatar
    Member Since
    Oct 20, 2006
    Posts
    1,513
    When the pram battery gets low the button may not work on an Imac G3.

  4. #4
    G3 Power Button on Keyboard to Start Up
    willwinuk's Avatar
    Member Since
    May 22, 2009
    Posts
    35
    Specs:
    iMac 27" 3.4 GHz i7, AMD Radeon HD 6970M 2048 MB, 8 GB Ram running Mac OS X Lion 10.7
    No I am not using a usb hub and I have tried permissions.
    What is the pram battery and can it be replaced or recharged?

  5. #5
    G3 Power Button on Keyboard to Start Up
    harryb2448's Avatar
    Member Since
    Nov 28, 2007
    Location
    Nambucca Heads Australia
    Posts
    20,014
    Specs:
    iMac i5 2.7GHz, 16GB memory, OS 10.10.5
    Okay here is a link to replacing the PRAM battery. Do you know if it is the original battery and has the iMac been left unplugged lately? As batteries get older this will flatten them faster:-

    iMac replacement battery

  6. #6
    G3 Power Button on Keyboard to Start Up
    willwinuk's Avatar
    Member Since
    May 22, 2009
    Posts
    35
    Specs:
    iMac 27" 3.4 GHz i7, AMD Radeon HD 6970M 2048 MB, 8 GB Ram running Mac OS X Lion 10.7
    Thanks

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