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Fan activity with Leopard

Message #1 - Posted 2009/03/19 - Thierry Mella

Hi,

iMac G5 without iSight + Leopard 10.5.6

Since I've made the upgrade from Panther 10.3.9 to Leopard 10.5.6, I have noticed that the Fan activity is bigger, there's much more noise and they runs Faster ...

Is it because Leopard needs more power from the CPU ?
(in comparaison with Panther)

What's your experience / feedback ?

TIA,

Thierry

Message #2 - Posted 2009/03/19 - Charles Magahern

On 2009-03-18 20:28:34 -0700, Thierry Mella said:

Hi,

iMac G5 without iSight + Leopard 10.5.6

Since I've made the upgrade from Panther 10.3.9 to Leopard 10.5.6, I have noticed that the Fan activity is bigger, there's much more noise and they runs Faster ...

Is it because Leopard needs more power from the CPU ?
(in comparaison with Panther)

What's your experience / feedback ?

TIA,

Thierry

Thierry,

Mac OS X Leopard is more graphically demanding than previous OSes and is also more CPU intensive. Some additional fan noises are normal.

How long does it take for the fans to speed up? Does fan activity increase during CPU intensive applications?

-Charles

Message #3 - Posted 2009/03/19 - Thierry Mella

Charles Magahern wrote:

Thierry,

Mac OS X Leopard is more graphically demanding than previous OSes

I don't use games.

and is also more CPU intensive.

Witch non-graphically new features makes it more CPU intensive ?

Some additional fan noises are normal.

How long does it take for the fans to speed up?

5 minutes.

Does fan activity increase during CPU intensive applications?

Oh YES !! Much bigger than with Panther ! (I don't know for Tiger - never used it ...)

-Charles

Thierry

Message #4 - Posted 2009/03/19 - Thierry Mella

Thierry Mella wrote:

Witch non-graphically new features makes it more CPU intensive ?

Sorry ! I wanted to say :

WHICH

Sorry for my English but French is my mother language ... :-)

Message #5 - Posted 2009/03/19 - John McWilliams

Thierry Mella wrote:

Thierry Mella wrote:

Witch non-graphically new features makes it more CPU intensive ?

Sorry ! I wanted to say :

WHICH

Sorry for my English but French is my mother language ... :-)

Pas de probleme, mon vieux.....

You may wish to activate the application in your Utilities folder, Activity Monitor and, uh, 'monitor' , er, the 'activity' it shows. It should reveal what applications or processes are using up CPUs.

John McWilliams

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