Energieeinsparung ohne Performanceverlust

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Thulsa Doom
Posts: 63
Joined: Thu Aug 05, 2004 9:40 am
Location: Germany

Energieeinsparung ohne Performanceverlust

Post by Thulsa Doom »

Hallo alle,
wollte mir nächstes Jahr neue PC-hardware anschaffen.

Eine wesentliche Zielrichtung ist die Energieeinsparung (geplante semi-passive Kühlung),
Daher interessiert mich, welche features hierfür besonders effizient sind
ohne dass man bei Bedarf performance verliert:

Z.B. Hardwareprofile unter WinXP32/64 (notfalls auch Vista64).
Wenn man hier ein Hardwareprofil anlegt und
z.B. den onboard Soundcontroller deaktiviert,
ist der dann auch wirklich elektrisch abgeschaltet?

Oder muss hingegen dieses feature vom BIOS als Bootprofil unterstützt werden?
(Was vermutlich den Anbieterkreis des Mainboards eingrenzt.)

Da ich nicht wusste, wo ich die Frage sonst posten sollte,
hoffe ich, dass hierzu doch ein paar Experten zu finden sind.

Schöne Weihnachten
T.D.
Thulsa Doom
Posts: 63
Joined: Thu Aug 05, 2004 9:40 am
Location: Germany

honorably forum users

Post by Thulsa Doom »

Excuse me for violating the
good habits of this creditable forum,
hereby a rough translation
of my upper post:

______________________________________

Hello everybody,
I want to purchase next year new PC hardware for me.
A substantial objective is the energy conservation (as planned semi-passive cooling),
therefore interests me, which features are particularly efficient for this purpose
without unnecessary performance losses:
E.G. using user-hardware profiles by WinXP32/64 (if necessary also Vista64).
If one creates a new user-profile and deactivates e.g. the onboard sound-controller,
is it then really electrically switched off?
Or however, has this feature to be explicitly supported by the BIOS as so called boot-profile?
(which supposedly limits the circle of the main-board vendors.)
I did not know, where to post this question otherwise.
Nevertheless I hope, that few experts are to be found for this.

Merry Christmas
T.D.
Jens
Posts: 14
Joined: Sun Nov 11, 2007 5:44 pm
Location: Germany

Post by Jens »

hi thulsa,

as I am german myself I could read your first post and will answer to that post.

I think maximum performance and low-energy-consumption can't be combined.

You always have to compromise.

For example:
Buy a onboard graphic card. You'll get less energy consumption but you'll also get low performance.
Or you buy a AMD Athlon EE processor and reduce his frequency to only one gigahertz. You will reduce his energy consumption BUT you'll lose a lot of performance.

As you can see: Its nearly impossible to have a pc with low energy consumption AND high performance.

And deactivating something in windows does not deactivate the hardware itself. So I think it wont help.

If you want to save energy you could use a tft panel instead of a crt.
Maybe this will help you save some energy.

My best tip is to buy a laptop. A laptop only needs 100-120 watts AND you can have a relative high performance.

Do you need this pc because someone (a customer?) wants it that way or is this a (sorry for the following) "ubi-dubi we save the world by using low energy computers" ???

greets jens
Thulsa Doom
Posts: 63
Joined: Thu Aug 05, 2004 9:40 am
Location: Germany

Post by Thulsa Doom »

thank you jens for answering!

I completely agree with you that maximum performance excludes low-energy-consumption.
But let us view it a little more differentiated.

In condensed form: Perfomance on demand and energy conservation ulterior.

Besides a general improvement of the degree of efficiency, computing power per Watt,
I see the major adjusting screw at the moment in the enhancement
of the perfomance on demand aspect.

Let me give an example.
In most cases when sitting in front of an old CRT ( and hardware made in 2001, PIII 700MHz )
typing emails, writing code or post to forums,
the PC-hardware has not much to do as it's waiting for my input.
Only in some cases I really need all the performance modern hardware offers.
I admit this is my personal view and in general this strongly depends
on the people's habit using their computer.

Using MS Windows, this is unfortunately in concordance with my experience.
When deactivating something from the OS just deloads the driver from memory.
I have no experience with alternative operating systems.
The only evidence that I have provided by my Laptop is,
that deactivating something in the BIOS leads to longer run time.
So the components must be electrically switched of.
I'm not sure if mainboard manufacturers incorporated already existing
energy conserving mobil computing technique in Desktop PCs,
and if so, in which motherboards.

T.D.

"ubi-dubi we can contribute to save the world by using energy-efficient computers"
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