I also had quiet some peaks on my Machine, not that it is having low power but some of them sure were causing the explorer to crash, Hard drives were running at full speed because Microsoft is running stuff in the background getting info of your apps and data. Well that one was the worst case " The compattelrunner.exe " Compatibility Appraiser, or Compatibility Telemetry. Due very large drive with loads of 3D data it was scanning these regularly over day's and the Cpu load also raised just to send all this data to Microsoft ! So I just turned it off. Just took some time checking the Processes in the task manager and see what is causing peaks, if possible shut there function off so that they do not run unnecessary. Finally I got My computer down on a average of 15 watts to 50 watts when using normally, if running Poser or watching a Movie the CPU runs at a max of 20W for movie and 40W for Poser . All this is making Poser very stable and only experience Crashes if it is an issue in Poser itself, normally I can run a work in progress for day's without having to close or fear that it shuts down. Things I know what poser do not like I just avoid or quickly save and reload the scene cleaning it out . 

It sure was worth checking things out so my PC Cpu temp fell down between 20c to 50c with just one simple cooling Van