mirror of https://github.com/tLDP/LDP
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<!DOCTYPE article PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
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"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" []>
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<article>
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<article>
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<articleinfo>
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<!-- Use "HOWTO", "mini HOWTO", "FAQ" in title, if appropriate -->
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<title>Athlon Powersaving HOWTO</title>
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<author>
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<firstname>Daniel</firstname>
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<surname>Nofftz</surname>
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@ -18,13 +15,22 @@
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<address><email>daniel@nofftz.net.NOSPAM</email></address>
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</affiliation>
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</author>
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<!-- All dates specified in ISO "YYYY-MM-DD" format -->
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<pubdate>2004-04-24</pubdate>
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<!-- Most recent revision goes at the top; list in descending order -->
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<pubdate>2004-11-28</pubdate>
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<revhistory>
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<revision>
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<revnumber>1.1.6</revnumber>
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<date>2004-11-28</date>
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<authorinitials>dn</authorinitials>
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<revremark>SIS746/748 and KT880 added. recommanded solutions are now the commandline-hack and athcool</revremark>
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</revision>
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<revision>
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<revnumber>1.1.5</revnumber>
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<date>2004-05-09</date>
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<authorinitials>dn</authorinitials>
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<revremark>Hungarian Translation added</revremark>
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</revision>
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<revision>
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<revnumber>1.1.4</revnumber>
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<date>2004-04-24</date>
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@ -41,38 +47,22 @@
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<revnumber>1.1.2</revnumber>
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<date>2004-03-30</date>
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<authorinitials>dn</authorinitials>
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<revremark>KT600 commandline hack added, additional proves that the Sound-Problem Fix works!</revremark>
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<revremark>KT600 commandline hack added</revremark>
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</revision>
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<revision>
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<revnumber>1.1.1</revnumber>
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<date>2003-12-18</date>
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<authorinitials>dn</authorinitials>
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<revremark>Japanese and brasilian Portuguese Translation added, Possible Fix for Sound-Problems added</revremark>
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</revision>
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<revision>
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<revnumber>1.1.0</revnumber>
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<date>2003-10-04</date>
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<authorinitials>dn</authorinitials>
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<revremark>a big bunch of new informations and links</revremark>
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</revision>
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</revhistory>
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<!-- Provide a good abstract; a couple of sentences is sufficient -->
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<abstract>
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<para>
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How to enable the power-saving functionality of the
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Athlon/Duron/AthlonXP processor on some motherboards/chipsets.
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This is usefull for saving Power and lowering the Temperature of the
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CPU and the System. (It also will reduce noise if you use temperature
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controlled fans in your case/on your cpu heatsink.
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controlled fans in your case/on your cpu heatsink).
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</para>
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</abstract>
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</articleinfo>
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<!-- Content follows...include introduction, license information, feedback -->
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<sect1 id="intro">
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@ -82,7 +72,7 @@
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<title>Basics on the Athlon Power Saving Mode</title>
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<para>
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The HLT signal which is used by the normal idle-loop of the Linux kernel
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does not bring any significant power-saving on processors of the Athlon/Duron
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doesn't normaly bring any significant power-saving on processors of the Athlon/Duron
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family (hereafter referred to as Athlon processors). To get real power-saving on an
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Athlon processor, you have to put the processor in the STPGNT-Mode (Stop Grant Mode).
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In this mode, the processor is disconnected from the front-side bus (FSB), and can
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@ -100,7 +90,7 @@
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<!-- The LDP recommends, but doesn't require, the GFDL -->
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<para>
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This document, <emphasis>Athlon Powersaving HOWTO</emphasis>,
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is copyrighted (c) 2003 by <emphasis>Daniel Nofftz</emphasis>.
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is copyrighted (c) 2003,2004 by <emphasis>Daniel Nofftz</emphasis>.
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</para>
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<para>
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Permission is granted to copy, distribute and/or modify this
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@ -144,13 +134,13 @@
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<para>
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Feedback is most essential for this document. New solutions for
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new chipsets are especially needed. And I need comments,
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new chipsets are especially needed, as are comments,
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whether the provided solutions work or don't work. Send
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your additions, comments and criticisms to the following
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email address: <email>daniel@nofftz.net.NOSPAM</email>.
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</para>
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<para>
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You can email me in German or English!
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<emphasis>You can email me in German or English!</emphasis>
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</para>
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</sect2>
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@ -172,11 +162,10 @@
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<para>
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In the following section I present different approaches to achieve the same goal:
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power-saving on your Athlon-based system. My recommended approach at the
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moment is to use the <quote>command-line hack,</quote> because the kernel patch
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power-saving on your Athlon/Athlon-XP based system. My recommended approach at the
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moment is to use the <quote>command-line hack</quote> or the athcool programm (the kernel patch
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is outdated and will not be developed any further, and the
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<emphasis>LVCool</emphasis> patch supports only one chipset family.
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The <emphasis>athcool</emphasis> program sounds good, but I haven't tested it myself.
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LVCool patch supports only one chipset family.)
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</para>
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<para>
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Nearly all of these approaches will set the <quote>
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@ -194,6 +183,8 @@
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<para>
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Or for the new 2.4.22 Kernel: <menuchoice><guimenu>General Setup</guimenu><guimenu>ACPI Support</guimenu></menuchoice>. You must have at least the following option: <guimenuitem>Processor</guimenuitem>.
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</para>
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<para>2.6.x Kernel: <menuchoice><guimenu>Powermanagment options</guimenu><guimenu>ACPI</guimenu></menuchoice>. You must have at least the option <guimenuitem>Processor</guimenuitem> enabled. You shouldn't enable Thermal Zone !!
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</para>
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<para>
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Some Chipsets also support a STPGNT if a HLT signal is detected. This Motherboards/Chipsets
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@ -247,6 +238,19 @@
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>on KT880:</term>
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<listitem>
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<para>enable:</para>
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<para><command>setpci -v -H1 -s 0:0.0 82=$(printf %x $((0x$(setpci -H1 -s 0:0.0 82) | 0x80)))</command></para>
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<para><command>setpci -v -H1 -s 0:0.0 85=$(printf %x $((0x$(setpci -H1 -s 0:0.0 85) | 0x02)))</command></para>
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<para>disable:</para>
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<para><command>setpci -v -H1 -s 0:0.0 82=$(printf %x $((0x$(setpci -H1 -s 0:0.0 82) & 0x7f)))</command></para>
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<para><command>setpci -v -H1 -s 0:0.0 85=$(printf %x $((0x$(setpci -H1 -s 0:0.0 85) & 0xfd)))</command></para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>on SIS730/733:</term>
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<listitem>
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@ -263,6 +267,17 @@
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>on SIS746/748:</term>
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<listitem>
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<para><command>setpci -v -H1 -s 0:0.0 6C=$(printf %x $((0x$(setpci -H1 -s 0:0.0 6C) | 0x8000)))</command></para>
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<para><command>setpci -v -H1 -s 0:0.0 E6=$(printf %x $((0x$(setpci -H1 -s 0:0.0 E6) | 0x0600)))</command></para>
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<para>disable:</para>
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<para><command>setpci -v -H1 -s 0:0.0 6C=$(printf %x $((0x$(setpci -H1 -s 0:0.0 6C) & 0x7fff)))</command></para>
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<para><command>setpci -v -H1 -s 0:0.0 E6=$(printf %x $((0x$(setpci -H1 -s 0:0.0 E6) & 0xf9ff)))</command></para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>on Nforce:</term>
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<listitem>
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@ -326,7 +341,7 @@
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</sect2>
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<sect2 id="patch">
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<title>Kernel Patch</title>
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<title>Kernel Patches</title>
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<para>
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The patch is based on another patch (from Jan Niehusmann) I found on the
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After about 20 or 30 seconds you should notice that the noise of the fan is getting louder while the fan is getting faster. Don't forget to end the while-loop after some time ( a few minutes) with STRG-C.
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</para>
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<para>
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The same procedure as above works also with a monitoring program for the cpu-temperature (like lm-sensors or xmbmon).
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The same procedure as above works also with a monitoring program for the cpu-temperature (like <ulink url="http://secure.netroedge.com/~lm78/">lm-sensors</ulink>, <ulink url="http://www.nt.phys.kyushu-u.ac.jp/shimizu/download/download.html">xmbmon</ulink> and <ulink url="http://perso.wanadoo.es/com.ea/rtsensors/">rtsensors</ulink>).
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</para>
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</sect2>
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@ -570,7 +585,8 @@
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Translations into different languages also exist. At the moment, some of
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them are not up to date (lets say: heavily outdated).
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</para>
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<para><ulink url="http://tldp.fsf.hu/HOWTO/Athlon-Powersaving-HOWTO-hu/index.html">
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Hungarian</ulink>by Zsolt Mocza</para>
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<para><ulink url="http://perso.wanadoo.es/cmayo/docs/Athlon-Powersaving-HOWTO-es.html">
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Spanish</ulink> by Carlos Mayo</para>
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<para><ulink url="http://planeta.terra.com.br/arte/brunobuys/ldp/Gerenciamento%20de%20energia%20em%20athlon%20COMO%20FAZER.txt">
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