Chirping (Squeak) on PowerMac G5 2Ghz Dual processor
After upgrading to Mac OS? X Tiger (OS 10.4. I"m hearing a repeating chirp , beep, or squeaking sound from my PowerMac G5. How do I get rid of it? While we can only confirm this on the 2Ghz dual processors, it's reasonable that the condition may exist on other PowerMac G5 machines.
PowerMac G5 2Ghz dual processor, Mac OS X Tiger 10.4.0.
The repeated chirping, beep or squeak was a recurring issue in 2004 and appears to have reappeared in Mac OS X Tiger. In some cases the sound may seem to be intermittent, only appearing under heavy processor loads. However, since many of Tiger's new features such as Dashboard Widgets and Spotlight appear to be causing fairly heavy system loads, it's not unlikely the sound may appear all the time.
While the sound isn't particularly loud, it can be annoying and although it's not particularly clear what exactly is causing the sound there are two methods to get rid of it. Any additional news regarding the cause of the sound or alternative methods on how to correct it will be posted here.
What to do
There are two methods to shut off that annoying chip-beep-squeak which are simple to do. If Option A doesn't work for you, try Option B.
Option A: Use the
Apple menu → System Preferences...
- Press the
Automaticfrom the Processor Performancepop up menu
- the sound should stop immediately
While we haven't been able to perform any sort of conclusive speed and performance tests, this method can potentially reduce overall performance, if only slightly. However, it does successfully shut off the annoying sound which may be worth the potential trade-off. Option B described here uses a different method which allows the Energy Saver System Panel to be set to high and still shuts off the beep-chirp-squeak sound.
Option B: Install Apple CHUD Tools
CHUD (Computer Hardware Understanding Developer Tools) are intended to help developers tweak performance of their applications running in Mac OS X. While there are many aspects to what CHUD Tools can be used for, in the context of this problem were interested in only one - the
CHUD Tools are included on your Mac OS X Tiger master install DVD or you can also download Apple's CHUD tools from version tracker.com. Simply visit the Version Tracker website and search for
Stage one: install CHUD Tools
- insert the mac OS X Tiger Install DVD
- double click the Xcode Tools folder icon
- review the About Xcode Tools.pdf file
- double click the XcodeTools.mpkg icon
- follow the screen prompts until you see the Select Destination Screen
- click on your hard drive with Tiger installed
- press the Continue Button
- Press the Customize button
- Check CHUD Tools and press Upgrade/Continue
Stage two: set the
- After stage one is complete - restart your computer
Apple menu → System Preferences
- click on the
Processsystem panel (bottom of the dialog box) Uncheckthe Allow Napcheck box
- the sound should stop immediately
- This setting doesn't stick: it must be reset each time the computer is restarted
Update: May 31, 2005:
We've noticed that after restarting it's usually necessary to go back to the Processor System Panel and Uncheck Allow Nap again. So - if you've turned off Allow Nap and restarted your computer, you may not be hearing things - the chirp could have returned.
We've used both methods and the sound has disappeared - in our case we prefer Option B which allows us to disable
We hope that helps
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