"Nap" mode causes fans to rev higher - normal?

I've recently installed the appropriate CHUD tools for my PM G4, but find that activating "Nap" mode immediately causes the fans to rev more quickly, causing more noise. Is this normal? I've modified no other settings, and was not taxing the machine to any degree when activating "Nap".
I am of the opinion that the 10.4.11 update (which I installed prior to installing CHUD) brought a measure of increased fan variance whilst running that I certainly didn't notice in 10.4.10. Has anyone else noticed this? If so, is it possible that CHUD has been superseded by 10.4.11?

Hi,
What is your current specs for your machine? What is your firmware? Apple did revise the firmware and provided a newer one for the mdd machines. The current and last up to date firmware is: 4.4.8f2, if you have fw800, that is 4.6.??f1. I think the better firmware controlled the fan settings, and prevented the fans from reving too high. You might also want to try and revert back to 10.4.10 and see what happens. I am currently running 10.4.11 and nothing is happening with my fans.
Please describe for me your G4 MDD.. report back to me and possibly we can come up with a solution.
Nadav

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