<<That's what I'm saying, on startup there are no programs running.>>
You may not realize it...but there are a ton of things running at startup on any system...Windows processes, drivers, and software startup items. If you want to get an idea of the variety and types...download/install AutoRuns for Windows - http://technet.microsoft.com/en-us/sysinte...s/bb963902.aspx
There are also any number of processes (I would say, at least 20) that are running all the time and which should be reflected in Task Manager.
I can't answer any questions about sleep mode, I've never used it.
IMO...if the CPU is still working, the CPU fan should be running. If the system has any power supplied...the PSU fan should be working.
Edited by hamluis, 04 August 2010 - 06:46 PM.