Ahne, Steve et al
Ahne I agree with your statement: "if the supplier of the equipment designs
and builds or has their stuff built right, there should no latent failures.
We at Intel, are very safety conscious and are environmentally friendly,
however we do leave our computers on 24X7 unless asked to power down for
maintenance etc.
Many of engineering have PCs and workstations at our desks. The workstations
are never powered down. I've asked around a bit, and from an IT perspective
it's suggested to leave em up! We have a very low mortality rate on the PCs
and with the work stations I've never heard of hardware problems. Network
problems that's a different story!
From a environmental perspective both the PC and the workstations use < 15%
duty cycle in sleep mode. Next time you get a chance take a look at the
properties of an idle computer you'll see only a 5-8% usage. Of course 5-8%
X 65K users is a big power demand!
On a rare occasion you read of a horror story where the cause of a fire was
attributed to a faulty power supply or the like. This happens in spite of
the rigorous regulatory requirements of UL 94 where the product is exposed
to two 10 second flame applications where the required result is to self
extinguish within 5 seconds, any burnt residue must not ignite surgical
cotton. Similar requirements exist from FAA, ASTM etc.
Indeed these are confusing arguments, however personally I prefer not to
have to cycle up my computer every morning for what that's worth.
Mike
-----Original Message-----
From: Ahne Oosterhof [mailto:[log in to unmask]]
Sent: Tuesday, August 10, 1999 10:35 AM
To: [log in to unmask]
Subject: Re: [TN] "Green" Technologies...
I have heard this type of reasoning many times. But --- if the supplier of
the equipment designs and builds or has their stuff built right (he, he, he
:) ), there should no latent failures.
Using the same reasoning, I should not turn my electric shaver off during
the day. It is one of those battery operated units, with some electronic
circuitry inside. It is used every morning and once a month it is plugged in
for a night to recharge the batteries, and it is 6 years old!
And another thought: normal use of electronics makes the temperature go from
about 300 K to about 330 K, maybe 350 K, only a 10 to 15% change.
Yeah, yeah, I know: a rise of 10 K or C doubles the failure rate in
semiconductors, they say.
Now back to computers: Some software (maybe a lot of software) seems to
collect little problems until they become a big problem. The only way I have
found to prevent the big problem is to restart the computer just now and
then: maybe every morning? So I turn stuff off, especially early in its life
when the warranty still applies -- if it fails it goes back until it is
reliable!
Enough confusing arguments: you can pick any which one you like.
Ahne.
-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Stephen R. Gregory
Sent: Monday, August 09, 1999 16:11 PM
To: [log in to unmask]
Subject: [TN] "Green" Technologies...
Hi ya'll!
This may be a little off-topic, but I've got a little wager with someone
that
the thought behind "Green" Technology is really a bust. You know for
example,
the monitors that shut themselves off after a certain period of time may
well
save a few fractions of a cent in power consumption, but the stress of
powering down and up, and down and up, and so on, causes the life of the
monitor to be considerably shortened.
Somehow, this person has calculated that if everybody in the company shuts
their computers off everynight, and then reboots them every morning, there
will be a $3,500 a year savings in electricity. My take on it is that the
$3,500 in electricity savings will be overshadowed by the cost of failed
motherboards and associated hardware from the 'pooters powering up and
down...am I out to lunch on this? (If I am, I owe a lunch...hehehe)
-Steve Gregory-
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