Page 1 of 3 123 LastLast
Results 1 to 15 of 36
  1. #1

    lithium641's Avatar
    Member Since
    Jan 02, 2008
    Posts
    20
    Angry iMac G3 won't turn on
    I recently purchased a supposedly broken computer from a couple. When i got home and plugged it in it still worked. I took it apart to see what a computer looked like on the inside. When i was finally done and had put it back together and i tried to turn it on all that would happen was the little tink that you usually hear when you first turn it on, the screen stays black and the power on button stays orange. I can hear the fan and what i think is the hard drive running. If i turn it on the fan and the hard drive continue to run until i unplug it from the wall. I have tried leaving it on hoping that they were like ipods and just needed time to boot up again because the hard drive had been taken out but that didn't work. I have tried taking it back apart again and making sure that all the cables were connected good and that i didn't leave one unplugged and everything looks good but the problem proceeds. I really want to get this computer running so that i can mess around with it. If you think that you know the solution to this problem please tell me. I am desperate

  2. #2

    Tanner31593's Avatar
    Member Since
    Jan 28, 2007
    Posts
    1,131
    I think the power button being orange and not green means something if i remember correctly? Not sure though. This happened to me and my old iMac g3 sometimes, but after i unplugged it and plugged it back in it booted. I never took mine apart though.....too scared.
    Sorry i couldnt help.
    Good Luck!

  3. #3

    harryb2448's Avatar
    Member Since
    Nov 28, 2007
    Location
    Nambucca Heads Australia
    Posts
    22,803
    Specs:
    Imac 27", i7 3.5GHz, 3TB Fusion drive, 32GB memory, macOS Sierra.
    First that comes to mind is internal battery problems.

    Have a look at this and consider replacving the internal battery and doing a reset of the PRAM.

    http://www.academ.com/info/macintosh/

  4. #4

    lithium641's Avatar
    Member Since
    Jan 02, 2008
    Posts
    20
    I already replaced that battery but it still doesn't work

  5. #5

    harryb2448's Avatar
    Member Since
    Nov 28, 2007
    Location
    Nambucca Heads Australia
    Posts
    22,803
    Specs:
    Imac 27", i7 3.5GHz, 3TB Fusion drive, 32GB memory, macOS Sierra.
    Did you reset the PRAM? Replacing battery sets PRAM to zero from that link?

  6. #6

    lithium641's Avatar
    Member Since
    Jan 02, 2008
    Posts
    20
    and you would reset the PRAM by pressing and holding command+option+P+R. Right?

  7. #7

    harryb2448's Avatar
    Member Since
    Nov 28, 2007
    Location
    Nambucca Heads Australia
    Posts
    22,803
    Specs:
    Imac 27", i7 3.5GHz, 3TB Fusion drive, 32GB memory, macOS Sierra.
    Yes boot and immediately hold down the four buttons Command (Apple Logo) Option P and R keys before the gray screen illuminates.

  8. #8

    lithium641's Avatar
    Member Since
    Jan 02, 2008
    Posts
    20
    Ok. Well first off, there is no grey screen that comes on so ya. And second I tried to do it and it didn't work. Do you think you have to use the keyboard that came with the computer? If so then I can't really do anything because the people didn't give me the original keyboard. They gave me a PC keyboard. I'm thinking about just taking it somewhere and asking them what's wrong with it and seeing how much it would be to fix.

  9. #9

    lithium641's Avatar
    Member Since
    Jan 02, 2008
    Posts
    20
    imac G3 video cable
    I recently took my imac G3 apart and then tried putting it back together only to find that it doesn't work. In the process of taking it apart again and looking at every thing i came across the video cable and start looking at it. i found that one of the holes was empty. There are only 9 grey wires but it looks like there should be 10. I was just wondering if that's how they all are or what. There is no cut wire on it and i cannot find any grey wires around my house that could be it. If it is supposed to have 10 grey wires please tell me!!

  10. #10
    MacHeadCase
    Guest
    *Merged threads for continuity's sake*

  11. #11

    Joe52684's Avatar
    Member Since
    Oct 20, 2007
    Posts
    32
    if you have an open firmware password on, you have to take it off before zapping the PRAM. Try holding Command+Option+O+F until a grey open firmware screen pops up, type in "reset-nvram", then type in the firmware password (if you know it). then type "shut-down", turn back on, and try zapping PRAM again.

    Hope it helps.

  12. #12

    lithium641's Avatar
    Member Since
    Jan 02, 2008
    Posts
    20
    Quote Originally Posted by Joe52684 View Post
    if you have an open firmware password on, you have to take it off before zapping the PRAM. Try holding Command+Option+O+F until a grey open firmware screen pops up, type in "reset-nvram", then type in the firmware password (if you know it). then type "shut-down", turn back on, and try zapping PRAM again.

    Hope it helps.
    I don't know if there's an open firmware password on. I tried it and it didn't work. I tried reseting the PRAM on my macbook to see if it worked and it does but it won't work on this computer. I'm sure it would work if the monitor was working but it isn't so ya. Do you think if i got a monitor and tried hooking it up to it it might work because it seems like it's just the monitor that's not working because I can hear everything running like the fan and the hard drive and everything. What do you think?

  13. #13

    Joe52684's Avatar
    Member Since
    Oct 20, 2007
    Posts
    32
    hmmm. sorry that didn't help. That might be a good thing to try, hooking up an external monitor to see if you get video. But, you said that the power button stays orange, so there might be something wrong with the RAM. Have you tried reseating the RAM on the board? I would try that first before you bother with another monitor.

  14. #14
    MacHeadCase
    Guest
    Or it could be that the analog board fried. The iMac G3 had that weakness in a few generations.

  15. #15

    lithium641's Avatar
    Member Since
    Jan 02, 2008
    Posts
    20
    Quote Originally Posted by MacHeadCase View Post
    Or it could be that the analog board fried. The iMac G3 had that weakness in a few generations.
    Is the analog board the thing that connects the hard drive and CD drive and all that stuff?

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. iMac won't turn on
    By artmaven in forum Apple Desktops
    Replies: 11
    Last Post: 08-05-2015, 08:48 AM
  2. My old iMac won't turn on.
    By bethrosengard in forum Apple Desktops
    Replies: 2
    Last Post: 01-21-2015, 02:42 PM
  3. iMac Won't Turn On!
    By berlach in forum Apple Desktops
    Replies: 4
    Last Post: 01-16-2013, 01:05 AM
  4. iMac won't turn on
    By HikariBH in forum Apple Desktops
    Replies: 6
    Last Post: 07-29-2012, 10:45 PM
  5. G4 iMac won't turn on
    By frisbeefodder in forum Apple Desktops
    Replies: 3
    Last Post: 05-06-2008, 09:09 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •