Cool n Quiet with Asus A8N-E / AMD Venice does not work

[giovannichaenes]

Hi there

I built a computer consisting of an ASUS mainboard A8N-E and an AMD Athlon 64 Venice 3000+ (939 socket).
But I can't get the Cool n Quiet function running. The processor runs all the time at 1800 MHz. I checked it with various programs (like CPU-Z, etc.).
I have Win XP (32 bit version), SP2 and all latest patches installed.
What I did:
- enabled Cool n Quiet in BIOS
- updated the BIOS to the latest (final) version 1004
- installed the Cool n Quiet driver first from CD, because it did not work then from http://www.amd.com/us-en/Processors/TechnicalResources/0,,30_182_871_9706,00.html
- set the Power Schemes to Minimal Power Management

=> The processor runs all the time at 1800 MHz, even if it's basically idle.

What the heck is wrong?
Anybody any idea?

Thanks!

 

[SHAWN]

It is supposed to run at 1.8 ghz. What do you think it should be?

 

[giovannichaenes]

Well, 1.8 GHz is the nominal speed - correct. But if Cool n Quiet kicks in, then it should go down to 800 MHz or so.