Re: Where to go to learn about reducing electricity use?
Reid Priedhorsky wrote:
>On Tue, 02 Jan 2007 01:40:11 +0100, Douglas Tutty wrote:
>>On Mon, Jan 01, 2007 at 05:06:02PM -0600, Reid Priedhorsky wrote:
>>>I would like to make my Etch box use less power, but I'm having a hard
>>>time consolidating all the information I'm finding. Is there a package I
>>>can install or a web page I can read that is a gentle guide to reducing my
>>A good place to start may be something like the laptop-howto.
>>What power are you trying to reduce? Beware spinning down drives to
>>reduce power; spinning up reduces drive life.
>Thanks for your reply. It is a self-built Athlon desktop, though I assume
>much of the advice in the laptop-howto will be relevant. I will take a
>look. I'm happy to provide more specs on the box if that will be helpful.
>I'm not really sure how to answer your question. I know that spinning down
>drives is not such a good idea, and that I can reduce processor speed when
>idle (though how I don't know), but beyond that I don't have a good idea
>of what options are available to me.
athcool saves both temperature and power. Its a very simple script,
written for athlons.
bruno@frank:~$ apt-cache show athcool
Maintainer: Nicolas Boullis <email@example.com>
Depends: libc6 (>= 2.3.2.ds1-4), pciutils (>= 1:2.1.11-11)
Description: tool to enable powersaving mode for Athlon/Duron processors
athcool is a small utility for enabling/disabling Powersaving mode
for AMD Athlon/Duron processors.
By enabling Powersaving mode you can lower power consumption and
CPU temperature when the CPU is idle.
Powersaving works only if your kernel supports ACPI (APM does not
work), because athcool does only (un)set the "Disconnect enable when
STPGNT detected" bits in the Chipset's Northbridge. To really save
power, the STPGNT signal has to be sent when the CPU is idling. This
is done by the ACPI subsystem when C2 state entered.
Depending on your motherboard and/or hardware components, enabling
Athlon powersaving mode sometimes causes:
* noisy or distorted sound playback,
* a slowdown in harddisk performance,
* system locks or instability,
* massive corruption of the filesystem (observed at least once).
If you met those problems, you should not use athcool. Please use
athcool AT YOUR OWN RISK.
If athcool works fine for you, and you want it to run automatically
on startup, please read the /usr/share/doc/athcool/README.Debian