Imac G5 20" NOISY FAN, just arrived and FAULTY??

[Tommo]

I have seen the same thing in desktop G5s, especially the dual 2Ghz models, the fans seem to stop oince you have installed 10.3.5.

However fan activity on my DDual 1.8Ghz had increased significantly since I upgraded to 10.3.8, has anyone else found this ?

[Satcomer]

Originally Posted by Tommo

I.However fan activity on my DDual 1.8Ghz had increased significantly since I upgraded to 10.3.8, has anyone else found this ?

No. A have the Rev A. D1.8 model. Over at MacFixIt they suggest moving your System Preferences->Energy Saver-Options tag and select Processor Performance. Move the tab to Highest.

I have always run mine at this setting and have had no such fan problems. If I were you, I would re-install the 10.3.8 Combo update then as soon as it start up, launch Applications->Utilties->Disk Utility and Repair Permissions on the startup drive. If the fans are still blowing, look to see if you have the iShock drivers installed. They are playing havoc with 10.3.8.

So if none of this helps, it maybe the power supply. Good luck.

[antonioconte]

ok, some good pointers there. thanks

[fernando.alonso]

Originally Posted by Tommo

I have seen the same thing in desktop G5s, especially the dual 2Ghz models, the fans seem to stop oince you have installed 10.3.5.

However fan activity on my DDual 1.8Ghz had increased significantly since I upgraded to 10.3.8, has anyone else found this ?

...from the moment I start up the machine!!!

And sure wasn't the case when I first plugged after just bought...
...really strange, but I'm afraid it has something to do te the lastest update I did to X.3.8

...and now what? should I take the "risky X.3.9" and hope for a total crash?

...or would it slow down the noisy fan's?

[HateEternal]

My Fans seemed to spin up a lot more after I isntalled 10.3.8, i put it into highest proc performance and that worked but my PSU started chirping, which is really annoying. After 10.3.9, I put it back to automatic and it is a lot better.

[fernando.alonso]

If the fans are still blowing, look to see if you have the iShock drivers installed. They are playing havoc with 10.3.8.

some changes to the "iShock" did slow iMac G5 fans... however the machine is not running as silence as when I just bought it..!
Does anybody knows what else could be conflicting with OSX.3.8?

Incredible that some 3rd party's stuff could set your machine to spin like madman!!!

(There's a new update at Macally to get te latest iShock driver)

[iGreg]

I have an iMac G5, 1.8 GHz. The fan gets very loud with a lot of air blowing out the back on certain ocassions. Sometimes when I boot up from a utility CD, like DiskWarrior, or when playing certain games, like Tropico. The intensity varies based on the activity. Also, sometimes when I boot up from my external Lacie firewire drive.

The game Tropico causes a steady noisy iMac, not the loudest it can get, but annoyingly loud.

Essentially using any volume to boot from (other than the internal hard drive) causes noise, sometimes extemely loud, sometimes just annoyingly loud.

Compared to my iMac G4, the G5 is noisier. Its annoying enough that I have sometimes thought I would have been better off sticking with using a G4 iMac or buying Mini Mac.

The only hardware change made was that I had CompUSA boost my RAM from 512 to 1 GB by adding 512 MB chip.

I tested iMac G5 with Apple Hardware test CD and TechTool Pro 4. Both report that all the hardware is fine.

BTW, I have kept up with all updates.