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Eyenovation · Nov 3, 2005, 10:55 PM

I notice that now that I've upgraded to 10.4.3 my G5's fans spool up a lot more than they did before. It's for no apparent reason either, meaning I'm not doing anything processor intensive. They'll just gradually spin rather fast for a few seconds then go back to normal. Anyone else seeing this? (Hearing rather?)

cambro · Nov 4, 2005, 09:13 AM

I have a single 1.8 Ghz G5 in the office (1.5 Gig RAM).

After going from 10.3.9 to 10.4.3, I've noticed perhaps a very modest increase in fan spin up. However, they never get going really fast, just slight, short-lived acceleration that I don't remember hearing before. It is almost always associated with a task though....

RayK · Nov 4, 2005, 09:27 AM

I have the same problem as Eyenovation. The only solution I have found is to turn the Processor setting to reduced in Energy Savings. Yay for a new bug!

TETENAL · Nov 4, 2005, 09:32 AM

I like it since it means my computer will live longer. Especially with the Elco problem on motherboards I'm glad Apple plays better save than sorry.

RayK · Nov 4, 2005, 09:46 AM

Originally Posted by TETENAL

I like it since it means my computer will live longer. Especially with the Elco problem on motherboards I'm glad Apple plays better save than sorry.

The problem is that the temperature does not change. It just randomly happens with my computer. This is bad for the computer in my way of thinking because its doing something it doesn't need to do. Also its very annoying.

After consulting the observations thread that I've been following and trying out what they suggested, I say turn your processor performance to highest. The fans don't randomly speed up that way and its faster than reduced.

The only problem now is the darned chirping noise is louder.

TETENAL · Nov 4, 2005, 09:59 AM

Originally Posted by RayK

The problem is that the temperature does not change.

How do you know that?

Originally Posted by RayK

I say turn your processor performance to highest.

No thanks. My electricity bill is high enough already. And the fans turning up doesn't bother me that much. It just happens once or twice a day for a second or two now.

Big Mac · Nov 4, 2005, 10:18 AM

Why does it seem like every other update disrupts G5 fan control in some way? Interestingly, I've never had any fan abnormalities. Perhaps it's because I usually only install every other incremental update.

Big Mac · Nov 4, 2005, 10:18 AM

[dp]

Big Mac · Nov 4, 2005, 10:18 AM

[dp]

Gelfling · Nov 4, 2005, 01:32 PM

I have noticed this too.

Although for me it only seems to happen with the processors set to Automatic in the energy saver. Highest works just fine, quiet as a mouse.

Scandalous Ion Cannon · Nov 4, 2005, 02:08 PM

Yes it is widely reported now, Apple had the same problem with some version of 10.3.x

Anywho, no way to fix it other than to set your energy saver to highest or reduced.

Zapping the PRAM, unplugging your Mac and all that other junk doesn't work.