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&nbsp; &nbsp;
<figure style="display: inline-block" >  <img src="/images/clean-fan.jpg" width="250" />  <figcaption> A very clean fan! </figcaption></figure></div>
<p>If you face any heating issues (or a noisy fan) a few months after purchasing aLC230, one thing that would help is cleaning the fan using an air blower.</p><p>Here is what a clean CPU fan achieves:</p><figure style="box-shadow: 0px 0px 20px #888888; margin-bottom: -2em;" >  <img src="/images/htop.png" /></figure>
<p><br></p><figure style="box-shadow: 0px 0px 20px #888888;" >  <img src="/images/stress-test.png" /></figure>
<p>As you can see, even under very heavy CPU utilisation (and system load), theCPU fan running at <strong>5380 RPM</strong> is able to cool down the CPU to keep the coretemperature around +84&#176; C.</p><h2 id="battery-management">Battery management<a class="headerlink" href="#battery-management" title="Permanent link">&para;</a></h2><p>In case your current LC230 battery does not give you sufficient backup, you canpurchase a new 6-cell or 9-cell battery. The part numbers are as follows:</p><ul><li>Lenovo Thinkpad 6-cell Battery 44+ (Part Number: 0A36306)</li><li>Lenovo ThinkPad 9-cell Battery 44++ (Part Number: 0A36307)</li></ul><h2 id="swapping-the-keyboard">Swapping the keyboard<a class="headerlink" href="#swapping-the-keyboard" title="Permanent link">&para;</a></h2><p>It is possible to use the Lenovo Classic keyboard (last seen on the X220Thinkpad model) with the X230. This involves three steps:</p><ul><li>Modifying the keyboard connector</li><li>Flashing a modified BIOS (over the default Lenovo one)</li><li>Replacing the palm-rest with an x220 one</li></ul><p>We will be glad to help you with this modification. The steps are detailed on the <a href="http://www.thinkwiki.org/wiki/Install_Classic_Keyboard_on_xx30_Series_ThinkPads">Thinkwiki</a>.</p>                                                            

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