IMac g5 fan noise with update to 10.4.11

Has anyone else experienced this?
I have never had any problems with fan noise with my iMac, though I know it's a problem, till the recent update to 10.4.11. After restarting, it sounded like an airplane. Never heard that before. I shut it down and restarted, and it doesn't sound like a plane anymore, but the fan is noticeably noisier than ever before, a constant whine/hum.
Besides the energy saver fix and resetting the SMU and canned gas in the vents, any other suggestions? This is annoying, it's been running pretty perfect for three years till this. Thanks.

The questions are certainly not dumb - almost anywhere is cheaper than Apple for RAM, I recommend [macsales.com] and [smalldog.com] or [newegg.com]. I don't think that going back to 10.4.10 will help, you should really vacuum the vents to get dust out, and make sure that there's nothing hogging your CPU and making the fans noisy, look at Applications>Utilities>Activity Monitor to see if anything is using an unusual amount of memory or CPU.
If you do want to install Leopard, I would suggest making a full backup of your system,I use SuperDuper! to clone my system to a firewire external drive. You should certainly upgrade your RAM if you install Leo, but I don't think your machine will be any quieter with a new OS.
You need to remember that your machine is several years old, and that things get creaky with age (I certainly have). Since you have the iSight, it's not a simple matter to open it and clean the fans off. If you are really disturbed by the noise, you can take it in to an Apple service place and have them clean and oil the fans, which should help enormously.
Sorry I couldn't offer more help, but fans will, and do, get noisy.

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IMac G5 fan noise

Hi MGW,
Baby Boomer recommended that I check with you about our iMac G5 fan noise since you used to have the same model. For a reference as to what all has been suggested and done go to: http://discussions.apple.com/thread.jspa?messageID=9810894&#9810894
I've done some internet searches and come across some other ideas on what may be the problem and if it is not too much trouble I would be very interested in your thoughts about the suggestions by DeathStalker13 --- please scroll down to #19 at this link:
http://forums.macosxhints.com/showthread.php?t=50158
Here is another link that I've found information about iMac G5 fan noise. I'd also like your impression about the methods that these people have done to solve the issue:
http://scienceman.com/legacypgs/00imacG5fanforum.html
I've also contacted a local AASP store and from just our telephone conversation they think just cleaning the fans and inspecting the computer which would take 1-1/2 hours at $95/hour should take care of the problem.
We'd really appreciate you opinion. Thanks!!!

Thank you so much for answering so quickly. I apologize for not being able to do the same. We had unexpected house guests and everything else was set aside while they were here.
This morning I have been researching trying to figure out how to disable Flash but so far I've been unsuccessful. We have a Power PC Mac OS X 10.4.11, Safari version 3.2.1.
Under the Safari "Help" it says, "Safari works with the plug-ins that are installed with Mac OS X. To see a list of installed plug-ins, open Safari and choose Help > Installed Plug-ins."
I checked and the Installed Plug-Ins list only has one "FLASH" listed - Shockwave Flash. I didn't know how to disable it or if I should.
You suggested changing to Firefox or Camino. We already swap between Safari & Firefox (version 3.0.12) for other reasons. Unfortunately, the fan noise is the same whether we use Firefox or Safari.
It was interesting that under Firefox "Help" they recommended disabling Adobe Flash plugin: http://support.mozilla.com/en-US/kb/Usingthe+Flash+Plugin+withFirefox?style_mode=inproduct
They said something about, "vulnerable to an extremely malicious exploit" and that until Adobe has an update, you can disable Flash. I followed the instructions but the only plug-ins I found were the following:
Default Plug-In
Netscape Navigator Default Plug-In
Java Embedding Plugin 0.9.6.4
Runs Java applets using the latest installed version of Java. For more information: Java Embedding Plugin. Run version test: Java information.
Java Plug-in
Java 1.3.1 Plug-in
Java Plug-In (CFM)
Java 1.3.1 Plug-in (CFM)
QuickTime Plug-in 7.6.2
The QuickTime Plugin allows you to view a wide variety of multimedia content in web pages. For more information, visit the QuickTime web site.
Shockwave Flash
Shockwave Flash 9.0 r159
Shockwave for Director
Macromedia Shockwave for Director Netscape plug-in, version 10.1.1
I haven't changed anything yet, as I'm not sure what I should disable. We have considered putting up with the fan noise since it isn't as bad since we cleaned the fans but if there is an easy fix we'd really appreciate your advice. Thanks!

Fan noise with Tiger

Hello to everybody!
I have an imac G5 powerpc bought in 2005. It's still running under Tiger.
I've been having this fan noise too, for several days now; It never stops.
I've reset the SMU, the PRAM and NVRAM too. Nothing has changed.
What can I do?....
Please help me!! Thank you
Patrick
PS: my imac is a W854xxxx, its mother board has just been changed.

eekfreak, click on the link in MGW's previous post to see if your comp qualifies for the AERP. If not, then you will need to provide details about your computer in order for the knowledgeable users to provide any +"homespun fix its"+ if any.
Which "model" & "generation" G5 iMac do you have?
Need this info so that the knowledgeable users can provide you with the proper troubleshooting solution(s).
http://docs.info.apple.com/article.html?artnum=301724-en How to identify your iMac
http://docs.info.apple.com/article.html?path=Mac/10.4/en/mh355.html Getting information about your computer
You can have this info displayed on the bottom of every post by going to 'My Settings' which is located in the column on the right under your name, and filling in the information asked for.
Thank you

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I am very fussy about computer noise.
I have returned a 17" iMac G5 once due to the annoying buzzing of the fans (specifically the hard drive fan) that sounded nothing short of an RC model airplane buzzing around.
So I thought I would hear the same with the Intel Duo Core, but would just deal with it this time.
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I drove the CPU to 100% on both processors for over an hour (multiple times) and the fans are significantly easier on the ears than the G5.
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I can be very critical and nit-picky about the computers I buy.
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Thanks for replying turostar.
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May 14 22:48:26 Macintosh shutdown[413]: SHUTDOWN_TIME: 1273891706 794211
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May 17 17:59:53 localhost DirectoryService[11]: Improper shutdown detected
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Shutdown cause 110 is always a thermal problem, which means that your power supply has bitten the dust. It needs replacing, and hopefully, that will be all you need. If you are handy, go to [http://www.jimwarholic.com/2008/07/how-to-repair-apple-imac-g5.php] for instructions on replacing it.
Message was edited by: MGW

Imac HD Fan Noise

I am a Mac user for over 20 years. I have an Imac 20", early 2008, 2,66 GHZ Inte Core 2 duo, 4GB (00 Mhz DDR2 SDRAM, Graphic ATI Radeon HD 2600 Pro 256 MB with Lion Operation System.
The problem I have is that the HD fan coes crazy at certain times, using iPhoto, with screnn protector, witn Top Sites. They all have in commeon the use of graphic card. After putting the computer to sleep, HD revs drop from 600 that had reached and working properly. I sent the computer to an Apple service twice and failed to find fault. Changed the leoaprd operating system to Snow Leopard and now to Lion without result. I ´ve use control fan, SMC fancontrol, I´ve reset PRAM, PMU, Preferences, Onyx, reinstall all the programs, whitout fix it.
Any idea what could be the problem?
Do you think that any program -As HDD fan control- would solve the problem ?.
Thanks.

Hi,
I have the same problem.
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HDD is very noisy and buzzing fan.
Many times I have dropped the PRAM and SMC, but nothing changes
Please help, Apple

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Also having issues with the superdrive tray catching on the sliding door:
http://discussions.apple.com/thread.jspa?threadID=1245256&tstart=0

Hi Sopestone-
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Try running the Apple Hardware Test and see what results you get.
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<Edited By Host>

Please read this whole message before doing anything.
I've tested these instructions only with the Safari web browser. If you use another browser, they may not work as described.
This procedure is a diagnostic test. It won’t solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
Third-party system modifications are a common cause of usability problems. By a “system modification,” I mean software that affects the operation of other software — potentially for the worse. The following procedure will help identify which such modifications you've installed. Don’t be alarmed by the complexity of these instructions — they’re easy to carry out and won’t change anything on your Mac.
These steps are to be taken while booted in safe mode.
Below are instructions to enter some UNIX shell commands. The commands are harmless, but they must be entered exactly as given in order to work. If you have doubts about the safety of the procedure suggested here, search this site for other discussions in which it’s been followed without any report of ill effects.
Some of the commands will line-wrap or scroll in your browser, but each one is really just a single line, all of which must be selected. You can accomplish this easily by triple-clicking anywhere in the line. The whole line will highlight, and you can then copy it. The headings “Step 1” and so on are not part of the commands.
Note: If you have more than one user account, Step 2 must be taken as an administrator. Ordinarily that would be the user created automatically when you booted the system for the first time. The other steps should be taken as the user who has the problem, if different. Most personal Macs have only one user, and in that case this paragraph doesn’t apply.
Launch the Terminal application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.
When you launch Terminal, a text window will open with a line already in it, ending either in a dollar sign (“$”) or a percent sign (“%”). If you get the percent sign, enter “sh” and press return. You should then get a new line ending in a dollar sign.
Step 1
Triple-click anywhere in the line of text below on this page to select it:
for k in {,/S*}/L*/E*/{,.?}*.kext; do test -f "$k/Contents/Info.plist" && /usr/libexec/PlistBuddy -c "Print :CFBundleIdentifier" "$_" | egrep -qv "apple|Accusys|ArcMSR|ATTO|CalDigit|HighPoint|hp-fax|JMicron|print|SoftRAID|stex" && echo $k; done | open -ef
Copy the selected text to the Clipboard by pressing the key combination command-C. Then click anywhere in the Terminal window and paste (command-V). A TextEdit window will open with the output of the command. If the command produced no output, the window will be empty. Post the contents of the TextEdit window (not the Terminal window), if any — the text, please, not a screenshot. You can then close the TextEdit window. The title of the window doesn't matter, and you don't need to post that. No typing is involved in this step.
Step 2
Repeat with this line:
{ sudo defaults read com.apple.loginwindow LoginHook; echo; sudo crontab -l; } 2> /dev/null | open -ef
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Step 3
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Important: If you formerly synchronized with a MobileMe account, your me.com email address may appear in the output of the above command. If so, anonymize it before posting.
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You can then quit Terminal.

IMac g5 fan noise with update to 10.4.11

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