Apple released Power Mac G5 (June 2004) Firmware Update 5.1.8f7

Apple today released Power Mac G5 (June 2004) Firmware Update 5.1.8f7 which improves system stability for your Power Mac G5 (June 2004).

To upgrade the firmware on your Power Mac G5, follow the instructions below. You can print these instructions so they are available while you upgrade your firmware.

The Power Mac G5 Firmware Updater is installed in Applications/Utilities.

1. Save changes to open files and then quit all applications, if necessary.
2. Click Shut Down in the Firmware Update window to turn off your computer. Wait for your computer to shut down.
3. Press and hold in the Power button on the Power Mac G5 until you hear a long tone or see the Power button light flashing.

The firmware updater starts automatically. A status bar shows the progress of the update. You may see more than one status bar. After the update is complete, your system restarts automatically. When a message says your computer’s firmware has been successfully updated to version 5.1.8f7, the update process is finished.

More info and download link (1.2MB) here.


  1. “…Now I have the most ultimate computer in the world!..”

    No, mine is better. I just know it is. Aren’t you sweetie pie, come’ere let me kiss your beautiful silver body and run my fingers over your holes and… uh… sorry. TMI.

  2. You know, if M$ put in such vague text for describing improvements or problem resoloutions in their update pages, we’d be seriously poking fun at them.

    I certainly trust Apple more than Microsoft, but I do want to know specifically what is being correct/improved/changed before I update firmware on my computer.

  3. what did this fix in the Rev B PMG5 that apparently wasn’t a problem with the original models? I have a 1.8 DP G5 that I bought when they first came out (before they halved the RAM capabilities), and I don’t remember having to do a firmware update since I got it…

  4. BTW, for curiosities’ sake, I attempted to download and run the firmware update, and it told me that it wasn’t meant for my computer. Thank you, Apple, from protecting my computer from myself!

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