Thanks for the link to http://www.asus.com/products/mb/cnq.htm
I have actually already seen it before.
I cannot find the "ACPI 2.0 Support" in the BIOS settings of my A8N-E mainboard.
However I have enabled the Cool&Quiet feature and followed all the described steps.
When I start finally the Cool&Quiet program (which is only an indicator and has nothing to do with the actual activation of C&Q, right?) then it shows all the time 1800 MHz!!
The actual Cool&Quiet selection in the Power Schemes exists only for Windows 98 & ME. See in http://www.asus.com/products/mb/cnq.htm
! But thanks anyway!
WHAT I HAVE FOUND OUT:
I have been able to lower the CPU speed with an extra program called "CrystalCPUId": The CPU speed & voltage obviously changed depending on different loads.
I do not want to start each time after a reboot this program. Putting it in autostart is not a good idea, because it opens up a windows and then I first have to activate the "Multiplier Management", minimize the windows and finally I have to reduce it to a simple task (running in the lower right corner next to the clock).
=> Obviously a Windows service should normally take care about the Cool&Quiet management!? During the installation of the C&Q driver from CD it says that the speed is adjusted as often as 30 times per second!!
This adjustment is obviously done via SOFTWARE (not a special circuit somewhere on the mainboard or processor).
=> Therefore my question: WHICH WINDOWS SERVICE TAKES CARE ABOUT THE COOL&QUIET MANAGEMENT?? Maybe I should just start this service?
I have also installed the program XP Antispy. Currently the Windows Update does not work either anymore. I tried to enable the Windows Update Service via XP Antispy, but I was not successful.
Maybe my Windows version is somehow defective or XP Antispy messed it up???
If possible I would rather not want to re-install Windows! ;-)
Thank you guys for any help!