Question about Apple iMac G4 Desktop

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My imac g4 powers on but goes to a gray screen with flashing folder what can i do

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  • Apple Master
  • 739 Answers

The flashing folder means that the Mac cannot find its start=up folder.
This is caused by one of two things:-1. The hared-disk is going or has gone bad and will need to be replaced. or 2. There is directory damage.
Directory damage can be fixed in several ways.
First of all try starting you computer with the system CD in the slot.
After a few moments with the flasshing ! it will boot from the CD and ask what language you want to use as the computer is thinmking that you are going to reinstall the software.
we aren't.
Go to the next page and then from the menu bar select utilities.One of the utilities is disk utility, szelect that.
After a little while you will get presented with a new window with your HD listed down the left hand side. It will have two entries - one will be Western Digital. Seegate or Fujitsu or so mething sim ilare and the second will be Macintosh HD (or whatever you have renamed it)
If you see nothing - thern the HD is dead. (you have got everything backed up haven't you?). Click on the name of the drive and then c;lick the tab in the centre that says 'First Aid'.
Now at the bottom of the window you will see four buttons, 2 on each side. Go to the one that says 'Repair HD' and then leave the machine for 10 minutes or so.
If the drive has simple directory damage DU will fix it. If ity is complicated damage it will fail with a message.
Try it again as sometimes it has to make more than one attempt. If however, after 3 goes it still fails then you need somethinmg stonger..There is a program we use called Diskwarrior. `Its sole purpose is tyo fix directories.
Sometimes it can take a cople of hour to work, but in the last 10 years I've only had 2 machines where it hasn't been able to fix the damage.
Post back how you get on. Thanks.

Posted on Feb 20, 2012

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Posted on Jan 02, 2017

  • 82 Answers

SOURCE: ? imac g4 ? problem starting

This looks to be a hard drive issue....if you are familiar with the machine enough to take off the bottom plate.....requires a torx tool. I would take off the bottom plate and disconnect the hd, and then see if the machine will boot to cd...if it will then boot to cd then it is a hard drive... i would be careful though as there is a pad on the processor that cools it and if it becomes dislodged you can overheat the processor....

Posted on Mar 10, 2009

  • 50 Answers

SOURCE: when i stert my g4 imac,s screen was became blue

You need to reset your pram

  1. Shut down the computer.
  2. Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.
  3. Turn on the computer.
  4. Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.
  5. Hold the keys down until the computer restarts and you hear the startup sound for the second time.
  6. Release the keys.

Posted on Jul 29, 2009

gserle1
  • 4 Answers

SOURCE: imac g4 lcd black screen replaced pram battery

If you can find an older SVGA monitor, try hooking it up to the port on the back of your mac. If you get video then chances are the LCD display is shot.

Posted on Sep 02, 2009

  • 1099 Answers

SOURCE: when my imac g4 tries to bootup it shows a folder icon

It sounds like the system is corrupted. What I would do is to get your instal disk and boot up holding down the c key on your keyboard. Once you have booted up go to the file menu and run disk utility to verify and repair the hard drive. Then go to the instal menu and instal a fresh system remembering to preserve the users data so you do not wipe anything. Hopefully this will work.

Posted on Oct 13, 2009

  • 1619 Answers

SOURCE: iMac G4 17" Flat Panel 1Ghz, new PSU, boots to Gray

Sounds like possibly the motherboard has thrown in the towel.

1 thing to check is did you apply new thermal paste to the processor before putting motherboard back in?

Did you make sure all wires were seated as you pushed motherboard back in?

Posted on May 15, 2010

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1 thing to check is did you apply new thermal paste to the processor before putting motherboard back in?

Did you make sure all wires were seated as you pushed motherboard back in?

Apr 18, 2010 | Apple iMac G4 Desktop

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When you turn the comuter on, it just shows the


--SAFE BOOT MODE--

I am going to have you take your Mac into Safe Mode to see if we can't remove a possible folder(s) that may be affecting your Mac's start up function.

Try these steps:

• Reboot your Mac
• Upon restarting your Mac, press the Shift key.
• Hold the Shift key until you see a White Screen with Gray Apple icon and eventually a spinning gear.

• When you see the Spinning gear, release the Shift key.

• Allow the Mac to continue booting up. Also this may take a little while
(NOTE: this may take anywhere from 5 to 15 minutes to load to the Safe mode screen depending on the performance of your Mac, but if it exceeds this time, shutdown your Mac and try just once more. It may have just frozen up the first time around for you.)

• You are going to enter the Safe Mode (which looks like your main desktop environment - the only difference is certain start up items are disabled.)

• Once within the Desktop in Safe Mode
• From the Finder Menu, click Go> Go to Folder
• Type in this line: /System/Library/StartupItems
• This path, is going to take you to the System Library folder which has all of your Mac OS X StartupItems.

• Remove all of those folders to the Trash.

*Reboot your Mac normally and see if you can access your normal User desktop environment.

This should help get your iMac G4 back up
and running.

Regards,

Mactechtrainer

Jan 30, 2010 | Apple iMac G4 Desktop

1 Answer

When my imac g4 tries to bootup it shows a folder icon


It sounds like the system is corrupted. What I would do is to get your instal disk and boot up holding down the c key on your keyboard. Once you have booted up go to the file menu and run disk utility to verify and repair the hard drive. Then go to the instal menu and instal a fresh system remembering to preserve the users data so you do not wipe anything. Hopefully this will work.

Oct 03, 2009 | Apple iMac G4 Desktop

1 Answer

When i stert my g4 imac,s screen was became blue


You need to reset your pram
  1. Shut down the computer.
  2. Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.
  3. Turn on the computer.
  4. Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.
  5. Hold the keys down until the computer restarts and you hear the startup sound for the second time.
  6. Release the keys.

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1 Answer

Imac g4 dead


Hello, The power supply is part of the motherboard in the iMac G4, so it's hard to change it. The repair would certainly cost more than the price of your iMac. You can try to take off the small battery, and reboot it to see if it changes. To open the mac lay it down, screen on the table (on a t-shirt). Unscrew the four screws (they wont come out, so just unscrew them. Pull the screws and take off the silver plate. Then you'll have access to the inside. Good luck

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