Things change, but for decades it has long been considered a good
idea to leave electronic equipment (in my own experience, high end
audio gear, recording studio gear, most of which doesn't even have a
power switch, etc.) powered on to prolong it's life. The heat up/cool
down cycle is generally bad for electronics and reducing the number
of heat/cool cycles is generally desirable. Solder connections have
been shown to deteriorate with repeated heat/cool cycles, and in the
audio world, this leads to noticeable deterioration of sound quality.
Resistors and capacitors don't like heat up and cool down cycles either.
Turning on any electronic device is the single most damaging thing
you can do to it. Anecdotally, consider this. What proportion of the
light bulbs you have replaced in your lifetime have died while
sitting in the living room reading, versus walking into the living
room and turning ON the lights?
Now as to hard drives... In the days of the large platter drives, and
even through the first 3.5" drives, it was a good idea to keep them
warm and spinning. Lubricants stayed liquid and motor strain was
minimized. As we've moved to battery powered drives, battery
conservation has resulted in a great deal of engineering to support
spin up/spin down sleep cycles so this is largely no longer true.
I would recommend that if your computers support a sleep cycle that
you implement that rather than fully powering off the equipment. (Of
course this doesn't solve the problem of windows needing to be
restarted due to poor design, so you might want to do a warm restart
of your machines at least once a day--I've run unix boxes for 300+
days without a restart, and those due to memory upgrades).
On Sep 1, 2006, at 2:45 AM, Eric Hall wrote:
> In either case with newer hardware I am not sure if "prolonging
> lifespan" is
> really an issue - hard drives are cheap and I can't imagine that
> being ON
> would prolong the life of any other components?
> An interesting question!?!?
david herren - shoreham, vt us na terra solsys orionarm
Sorry I missed church. I've been practising witchcraft and becoming a