I shut mine down nightly;electrolytic caps in the power supply and
motherboard eventually degrade,their ESRs rise and put more strain on the
PS until something fails.
also,the bearings in the cooling fans wear out.
This PC I'm using had the microprocessor fan load the PS to where it would
A surplus fan from Skycraft cured that for $8.
IBM did a study on this many years ago when the 3.5" drives were
becoming the standard. They decided a power down/up cycle was worth
about 8 hours of running time based on available failure data.
Most hard drives fail because of electronics on the card or in the
enclosure. In fact when we had a lot of AS/400s that lost all the data
in the whole drive array when one drive failed, they made the drive
electronics card available as a service part and most drives came back
to life when we replaced it.
Heads don't really "crash" in PC drives, they land on the data surface
when you lose power and all drives since the late 80s autopark in the
landing zone as soon as you lose 5v, long before the drive actually
stops spinning. Way back in the olden days drives loaded and unloaded
the heads so they were not touchuing the disk when it stopped. They
also had hydraulic head actuators in those days and the drives were
the size of a washing machine.
Funny; I haven't yet noticed anyone discovering that by default or by
power settings, most machines shut down the monitor, disk drives, etc.;
everyone assumes everything is actually running 24/7. Anyone with a
decent UPS can easily see what they're using for running power; the
specs usually give the rest.
Lots of "assumers" and "me too" ers here today. Guessers, in other
words, trying to sound like know it alls.
IT's just too obvious a thing to be able to figure out for most any
swapped out power supply,still had problem. replaced a couple of high ESR
caps on the motherboard,still had problem.Left off fan cable while messing
with PC,problem went away. Got new fan from Skycraft,end of problem.
Actually some might think that people who suggest leaving things on is
OK for whatever reason can't see the forest for the trees. What if
someone removed the clothes and turned off the computer?
Instead of just making up assertions like that think about what you
wrote. Can I suggest that either this hypothetical dryer would be using
monumental amounts of energy or the computer consumes the power of a
single LED for your assertion to be accurate. Gather some empirical
data and try to verify your assertion. Data I have collected shows that
a minimally used typical computer uses the same amount of energy in 15
hours as used by an electric dryer used to dry a typical load.
I was working on a dryer yesterday (GE) and I had my clamp on ammeter
on the leads watching the load. The motor side pulls a tad over 25a
and the heat only side pulls 22 and change (when the heater is on).
When the heat cycles off you only have the 3 and change on the motor
side. The heat is not on for the whole drying cycle. In fact, when it
is in "automatic dry" the timer only runs when the heat is off. The
thermostat is in the exhaust air stack and when the clothes are wet
the air is too cool to make the stat.
My PC, flat monitor ethernet switch, KVM switch, external modem,
speakers, DSL modem, RF transmitter, ink jet printer and scanner pull
between 1.5 and 1.85a depending on what I am doing.
Exactly, someone trying to rationalize something can really come to a
bogus conclusion without considering actual data. Excluding space
conditioning most household electrical energy consumption (and waste)
comes from the small things not the high wattage devices such as a dryer
or toaster. As they say slow and steady wins the race and it is very
true for the energy consumption race.
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