OK. So, my Powermac G4 Quicksilver had a Sonnet 1.2Ghz single processor upgrade card. 2MB of L3 cache and it was NAP enabled. I replaced it with a Giga Designs 1.8Ghz dual G4 processor downclocked to 1.73Ghz. This upgrade only has L2 cache (no L3) and seemingly no NAP capability. The processors are the 7447A. What I am wondering is can I force the processors to nap? Is there some way? Or am I pretty much stuck with the upgrade running full out all the time? My understanding is that the 7447As use less power, but if there's any way to force NAPping without damaging anything I'd love to know.