Imac G5 Repair

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Repair Guides; iMac G5 (A1145) This is an official Powerbookmedic.com take-apart manual for the iMac G5 with model number A1145. Make sure you know your Apple ID and password before your appointment. Or, if you have a Mac notebook, contact us and we'll send you a box you can use to ship it to an Apple Repair Center. We'll return your repaired product to you as quickly as possible. Depending on where you get service, you might be able to check the status of your repair.

No. You need to erase the HD and re-install the original OS and software from the grey discs that came with it.

Imac G5 Repair
  • This page lists all programs currently offered by Apple, including Replacement programs, Exchange programs, Repair Extension programs and Recalls.
  • Repair Guides; iMac 20' G5 (A1076) This is an official Powerbookmedic.com take-apart guide for the 20' iMac G5. Removing the Back Case 3.


Restore to original:

Graphics


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Boot from your grey installer DVD disc 1 (hold down the C key on startup or hold down Alt/option on start and choose the installer disc).


OK the language page (if present).

From the installer screen, go to the menu bar and choose Disk Utility; depending on the OS version it may be in the Utilities menu or Tools menu.

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Imac

In DU, select your internal drive in the sidebar (the top item with the makers name and serial no.). Run Repair Disk.

If that comes up as disk OK, click the partition tab. Select the partiton from the drop-down above the graphic; 1 partiton is all you need.

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Go to the options button and ensure that the partition scheme is APM (for G5 and earlier) and the file system to Mac OS Extended (Journalled). Name the partiton (usually Macintosh HD), click Apply.


When that's finished, select the new volume in the sidebar (indented to the right below the drive) and go to the Erase tab, select Security options and select zero data (one pass is more than sufficient). Click erase.


That will take quite some time; probably measured in hours and dependant on the size of the drive. After this action none of your data will be recoverable.


When that's completed, close DU and continue with the installation.


After the restart, when the setup assistant appears, shut down the Mac by holding the power button for a few seconds.


When your friend starts it up, he/she will be able to set up an account from scratch.

Dec 25, 2011 2:56 AM

These key combinations apply only to Mac computers with an Intel processor.

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To use any of these key combinations, press and hold the keys immediately after pressing the power button to turn on your Mac, or after your Mac begins to restart. Keep holding until the described behavior occurs.

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  • Command (⌘)-R: Start up from the built-in macOS Recovery system. Or use Option-Command-R or Shift-Option-Command-R to start up from macOS Recovery over the Internet. macOS Recovery installs different versions of macOS, depending on the key combination you use while starting up. If your Mac is using a firmware password, you're prompted to enter the password.
  • Option (⌥) or Alt: Start up to Startup Manager, which allows you to choose other available startup disks or volumes. If your Mac is using a firmware password, you're prompted to enter the password.
  • Option-Command-P-R:Reset NVRAM or PRAM. If your Mac is using a firmware password, it ignores this key combination or starts up from macOS Recovery.
  • Shift (⇧): Start up in safe mode. Disabled when using a firmware password.
  • D: Start up to the Apple Diagnostics utility. Or use Option-Dto start up to this utility over the Internet. Disabled when using a firmware password.
  • N: Start up from a NetBoot server, if your Mac supports network startup volumes. To use the default boot image on the server, hold down Option-N instead. Disabled when using a firmware password.
  • Command-S: Start up in single-user mode. Disabled in macOS Mojave or later, or when using a firmware password.
  • T: Start up in target disk mode. Disabled when using a firmware password.
  • Command-V: Start up in verbose mode. Disabled when using a firmware password.
  • Eject (⏏) or F12 or mouse button or trackpad button: Eject removable media, such as an optical disc. Disabled when using a firmware password.

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If a key combination doesn't work

If a key combination doesn't work at startup, one of these these solutions might help:

  • Press and hold all keys in the combination together, not one at a time.
  • Shut down your Mac. Then press the power button to turn on your Mac. Then press and hold the keys as your Mac starts up.
  • Wait a few seconds before pressing the keys, to give your Mac more time to recognize the keyboard as it starts up. Some keyboards have a light that flashes briefly at startup, indicating that the keyboard is recognized and ready for use.
  • If you're using a wireless keyboard, plug it into your Mac, if possible. Or use your built-in keyboard or a wired keyboard. If you're using a keyboard made for a PC, such as a keyboard with a Windows logo, try a keyboard made for Mac.
  • If you're using Boot Camp to start up from Microsoft Windows, set Startup Disk preferences to start up from macOS instead. Then shut down or restart and try again.
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Remember that some key combinations are disabled when your Mac is using a firmware password.

Learn more

Imac G5 Repair

  • Learn what to do if your Mac doesn't turn on.
  • Learn about Mac keyboard shortcuts that you can use after your Mac has started up.