[X4U] iMac G5: what are the correct percentage of CPU usage

[Germain M.]

Helllo again,

My iMac G5 / 1.8 ghx /  768 RAM is having a strange behavior.  
Activity monitor gives ne high percentage of CPU usage in the likes of:

• CPU automatic mode: kernel task 25-30%
• CPU maximum mode: kernel task 10-15%

• CPU maximum mode, Mail, Safari, Monitor Activity, X Resource Graph  
opened: kernel task = 20%, (Activity Monitor) or 29-40% according to  
X Resource Graph.

If reverted to Automatic or Minimal, kernel tasks jump by almost 15%.

Semms to me that this inflation in CPU usage is seen only since a 512  
megs memory stick was added. Didn't do that with 512 megs if I  
remember well. Is it in the specs of Apple? Can you point me to some  
help please?

Thanks in advance



Germain
iMac G5 / 1.8 mhz / 768 RAM
Tiger 10.4.2 français