On Mon, Dec 9, 2013 at 3:41 PM, Charlie <aries...@skymesh.com.au> wrote:
> > On Mon, 9 Dec 2013 15:27:15 +0100 Gian Uberto Lauri sent: > > > I know that shutting down the machine saves electricity, but heating > > and cooling is the mechanical stress that hits the non-moving > > components of your computer, computer that turn off less often live > > longer. > > I wonder if the above is right? I've seen it written somewhere > before? Maybe it only applies for desktops? > > Both these are switched off sometimes after only 15 minutes powered up, > depending on the charge in the solar batteries. But mostly on for at > least 8 hours in 24, but switched on and off no less than 6 times > during that period. > I remember reading a report in the mid-90s stating that one of the biggest life-shortening properties of powering on and off was heating and cooling of the hard drive bearings. Now, that said, I do not know how much change has occurred in hard drive bearings, though I would have to guess that modern hard drives do not get as hot..