Velocity Reviews > Blank Screensaver vs Monitor Off?

# Blank Screensaver vs Monitor Off?

joe
Guest
Posts: n/a

 08-26-2005
I have a rather technical question about using the _blank_ screensaver (fyi:
that's the ss which does no graphics) vs. turning the monitor off. Which
combination (ON/OFF) of these two saves more electricity? (I am trying to
keep my electric bill to a minimum without shutting down my pc.) My monitor
is a ViewSonic Pro Series P95f+.

The following are my guesses for how much energy is used in each of the four
possible combinations.

Monitor ON / Screensaver ON = middle energy usage
Monitor ON / Screensaver OFF = maximum energy usage
Monitor OFF / Screensaver ON = minimum energy usage
Monitor OFF / Screensaver OFF = middle energy usage

Is the combination, OFF/ON, the minimum?

tia,
--
joe
http://www.angelfire.com/ny5/jbc33/

joe
Guest
Posts: n/a

 08-26-2005
I just realized that the electricity drives the monitor first. So with the
monitor OFF it doesn't matter what the screensaver is doing since the
monitor _can't_ respond.

This is pretty straight forward so I apologize for asking such a
basic/obvious question.

--
joe
http://www.angelfire.com/ny5/jbc33/

"joe" <(E-Mail Removed)> wrote in message
news:dqIPe.19610\$%(E-Mail Removed)...
>I have a rather technical question about using the _blank_ screensaver
>(fyi: that's the ss which does no graphics) vs. turning the monitor off.
>Which combination (ON/OFF) of these two saves more electricity? (I am
>trying to keep my electric bill to a minimum without shutting down my pc.)
>My monitor is a ViewSonic Pro Series P95f+.
>
> The following are my guesses for how much energy is used in each of the
> four possible combinations.
>
> Monitor ON / Screensaver ON = middle energy usage
> Monitor ON / Screensaver OFF = maximum energy usage
> Monitor OFF / Screensaver ON = minimum energy usage
> Monitor OFF / Screensaver OFF = middle energy usage
>
> Is the combination, OFF/ON, the minimum?
>
> PS: flamers need not reply.
>
> tia,
> --
> joe
> http://www.angelfire.com/ny5/jbc33/
>

JANA
Guest
Posts: n/a

 08-29-2005
Your best power savings is to physically shut the monitor off. Using a blank
screen saver only puts black on the monitor. Its high voltage and scans are
still working. The reason why it would be black, is because the tube is
biased down. The lower beam current difference is very small in comparison
to having the rest of the monitor in operation.

The typical computer monitor like the one you have should pull about 0.15
kW/hr.

Going from what we pay for power over here, from this you can calculate how
much power it is consuming. If you were paying out \$0.08 cents per kW/hr,
then the cost would be \$0.012 per hour, or \$0.29 per 24 hour period. I don't
consider this a whole lot of money, in relation to our cost of living.

If you really want to save a lot of cost with a monitor, you should consider
a TFT, or LCD screen. These typically will consume about 0.045 kW/hr. The
effective power cost for this should be about 1/3 average of that of a CRT
monitor.

As for your PC, the power consumption is very high in relation to a descent
laptop. A typical desktop PC can easily consume more than 0.25 kW/hr.

If you want to have a computer that will consumer very little power, you
should consider a Centrino type laptop computer. This would cost next to
nothing to run, and give a very good performance.

The best way to save power with any device is to use the power switch.
Remember that turning the power on and off of electronic devices over short
periods of time, will reduce their expected life span. Most of the stress on
these devices occurs when the power is coming on.

If you are frequently shutting and restarting your electronic devices, you
may find that you will have a greater maintenance, and replacement cost,
than the electricity to run them.

--

JANA
_____

"joe" <(E-Mail Removed)> wrote in message
news:dqIPe.19610\$%(E-Mail Removed)...
I have a rather technical question about using the _blank_ screensaver (fyi:
that's the ss which does no graphics) vs. turning the monitor off. Which
combination (ON/OFF) of these two saves more electricity? (I am trying to
keep my electric bill to a minimum without shutting down my pc.) My monitor
is a ViewSonic Pro Series P95f+.

The following are my guesses for how much energy is used in each of the four
possible combinations.

Monitor ON / Screensaver ON = middle energy usage
Monitor ON / Screensaver OFF = maximum energy usage
Monitor OFF / Screensaver ON = minimum energy usage
Monitor OFF / Screensaver OFF = middle energy usage

Is the combination, OFF/ON, the minimum?

tia,
--
joe
http://www.angelfire.com/ny5/jbc33/