i think you are talking to me... yes, if i have all 24 cores going then generally speaking the kill-a-watt meter is telling me that i am pulling around 475 to 515 watts from the wall socket. Keep in mind that includes the LCD monitor as well (which is 15w?). This is with windows set to performance power mode. The SuperMicro case i am using is vintage 2008 i think, and so came with less efficient dual redundant 1000w power supplies (of which i am using only one)... i will be swapping it for a newer platinum rated 1400w PSU from the latest revision SC748 case. In addition to the efficiency gain. That *should* cut down on the noise as well because from what i understand the fans on the newer PSUs throttle based on temperature. Each CPU seems to take around 125w or so... so i'm going to guess brief spikes to 750w when i get all four CPUs in there and going full bore. i only got her going yesterday so i've got her dialed in for minimal power consumption yet... but currently in performance mode... around 230w to 260w just doing normal windows stuff (all CPU cores running at full 2.5 GHz under very little load). Hope that helps.