Power Mac G5 1.6 GHz: Kernel panic, USB, or other issues after installing firmware 5.1.5f1

Some 1.6 GHz Power Mac G5 computers don't work properly with Uniprocessor Firmware Update 5.1.5f1. However, Firmware Update 5.1.5f2 fixes these issues.

Products Affected

Power Mac G5

Here are the issues you might see on a 1.6 GHz Power Mac G5:

 

  • A kernel panic.
  • A USB input device, such as a mouse or keyboard, becomes unresponsive.
  • Bluetooth USB modules don't respond five minutes after starting up.
  • Interruptions in iTunes audio playback.
  • Disconnecting and reconnecting affected devices does not help.
  • If you have any non-Apple memory (RAM), removing it usually stops the issue.

To resolve the issue, download and install the Power Mac G5 Uniprocessor Firmware Update (v5.1.5f2).

Important: Before updating, shut down the computer, then temporarily remove any non-Apple memory (RAM).

Once you have successfully applied the Firmware Update, you can reinstall any extra RAM.

Tip: To learn more about working with RAM, see the Power Mac G5 Do-It-Yourself Memory website.

If issues occur regardless of which RAM is installed (including just the Apple RAM that came with the computer), you can take your computer to an Apple Authorized Service Provider or Apple retail store for assistance.

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