I think I've done exactly as the instructions said, but maybe I missed a step?

I have pulled the easy to access RAM from the base of the iMac and zapped the PRAM, but can't get past the lock and arrow icons. The Command-Option-PR PRAM set doesn't do anything - no chimes as is usual. Clicking the Option key thereafter just takes me back to the dreaded lock and arrow. I mistakenly set my startup to NetBoot and now can't get it back to restart from the hard drive... help! The CD drive isn't working correctly either so holding down the D key doesn't get me anywhere either.

:(

⟐ Answer accepted September 23, 2013 at 3:18 MST

Our imac G4 is not powering up after a power outage during the night. It is connected to a surge protector. Other devices, connected to the same surge protector are working. We have tried the following:

1. turn off switch, unplug from surge protector, replug, turn on.

2. Take out power cord from the mac, and press the "on" button simultaneously while putting the power cord back in the mac. We waited for 10 seconds but nothing happened.

No sounds/smells.

Please help!

Thanks,

Barna

⟐ Commented May 20, 2022 at 5:53 MST

⟐ Commented June 14, 2023 at 4:16 MST

⟐ Commented April 29, 2015 at 7:23 MST

http://www.lowendmac.com/iMacs/17in-iMac...

⟐ Answered September 20, 2016 at 15:10 MST

One is running Mac OS X Leopard which connects to the WiFi just fine.

AirPort Extreme, Locale: Unknown, Firmware: Broadcom BCM43xx 1.0

My second G4 is running Mac OS X Panther which detects all the available networks but it doesn’t connect to any even when the password is correct.

AirPort Card Information…

Wireless Card Type: AirPort Extreme

Locale: Worldwide

Firmware: 3.2GMc1

Current Wireless Network: wireless network not available

Modem Information…

Firmware Version: APPLE VERSION 2.6.1

Driver: InternalUSBModem.kext (v2.6.1)

Modem: Dash2 (V.92) Australia 1.0F

Country: 9 (Australia)

Interface Type: USB

I read in another post that G4 does not recognise WPA2 and I might need to change my router setting to WPA. But then how come one works and the other one doesn’t?

⟐ Commented November 02, 2021 at 14:09 MST

I have this 2009 MacBook Pro that, besides for the broken display, works fine. I have it connected to my tv and use it as backup for my 2012 MacBook Pro.

So very recently a friend gave me his 2003 17" iMac G4. Latest version of its kind. But still very slow and running OSX.

I know it'll need an Intel processor in order to update.

Now i was thinking. What if it were possible to just take the 2009 motherboard/processor/whatever and replace it with the 2003's. Or am I daydreaming when I think of that?

Would like to know your opinions as I am a new girl too all of this.

Lots of love.

⟐ Commented June 15, 2016 at 16:09 MST

I have inherited seven iMac G4s, two of them 17 inches.

As I don't have much experience in computer repair, I would like your advice.

The first, when I plugged it in, there was only the ventilation as a sign of life, so I unplugged it and dismantled it.

I removed the two ram strips to see if that would change anything, then I removed the non-essential internal peripherals (hard disk, cd drive).

All my manipulations didn't change a thing, the result was the same as at the start, simply a black screen and ventilation...

For the second one, I did the same thing, but again, nothing changed.

The symptoms are: when I press the power button, the fan runs for about a second and then nothing after that.

Have a nice day!

Amaury from France

⟐ Answer accepted August 03, 2024 at 11:03 MST

What can it be ?

⟐ Answered August 16, 2018 at 4:56 MST

The computer works fine off of an external hard drive.

Any ideas?

⟐ Answer accepted June 01, 2018 at 4:46 MST

I have to restart the computer and push down and hold the mouse button to use the DVD drive, then the system recognizes it. but it's really not useful this way, does anyone have a solution please?

i've replaced it with un from another mac, now it works well, just want to let you know. thanks.

⟐ Edited by author December 13, 2017 at 11:56 MST

When I press the power button, I hear the startup chime and hear the computer running, but the screen does nothing. I’ve ruled out screen damage because it boots to open firmware when I hold Command + Option + O + F. I have tried A PRAM reset, and I’ve tried pressing the PMU reset button on the bottom.

My question is, what could be wrong with it? How do I fix it? Why was it working one moment and then not doing anything the next?

I really appreciate any help you can provide.

⟐ Edited by author March 05, 2021 at 10:02 MST

After long time i try to power on my imac g4 20”(the last time the mac war perfect ,new hdd new os and perfectly worked)

I click and the mac start with sound i see the apple and i heard the hdd working , but i can’t see the os screen, After 1 minute i decided to click power off.i retry to power on but after 2 minutes automatically shut down

After this i retry to power on but now I hear the fan kick i see Red light on mouse for only 1 second but now the mac does't power on

I try to change new battery and click pmu reset button but nothing change

any idea what could it be the problem?

Any solutions?something to do or i can try?

⟐ Edited by author June 30, 2020 at 13:46 MST

⟐ Commented February 24, 2020 at 11:31 MST

I’ve included a screenshot of the files in the G4’s Addressbook folder.

I've already tried reverting back to the old RAM stick, but that didn't seem to change anything, which is a bit worrisome. I've also attempted a few of the go-to tricks, such as a PRAM reset and the 10-second power button hold.

When I took it apart again, I noticed that the internal wires coming from the power cable input slot were stripped of a bit of their protective coating, likely from getting pinched during the process of putting the computer back together. I'm not sure whether or not that makes a difference, but I suppose it's worth mentioning.

Any ideas or suggestions are greatly appreciated.