hamgammon
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nonlibreboot-x201


			
				
					
						
						
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	<title>ThinkPad R400</title>
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	<div class="section">
		<h1 id="pagetop">ThinkPad R400</h1>
			
			<p>
				It is believed that all or most R400 laptops are compatible. 
				See notes about <a href="../install/r400_external.html#cpu_compatibility">CPU compatibility</a> for
				potential incompatibilities.
			</p>
			
			<p>
				There are two possible flash chip sizes for the R400: 4MiB (32Mbit) or 8MiB (64Mbit). 
				This can be identified by the type of flash chip below the palmrest: 4MiB is SOIC-8, 8MiB
				is SOIC-16.
			</p>
			
			<p>
				<b>The R400 laptops come with the ME (and sometimes AMT in addition) before flashing libreboot. Libreboot disables and removes it
				by using a modified descriptor: see <a href="gm45_remove_me.html">gm45_remove_me.html</a></b> (contains notes, plus
				instructions)
			</p>

			<p>
				Flashing instructions can be found at <a href="../install/index.html#flashrom">../install/index.html#flashrom</a>
			</p>
			
			<p>
				<a href="index.html">Back to previous index</a>.
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		<p>
			The R400 is almost identical to the X200, code-wise. See <a href="x200.html">x200.html</a>.
		</p>
		
		<p>
			TODO: put hardware register logs here like on the <a href="x200.html">X200</a> and <a href="t400.html">T400</a> page.
		</p>

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		<p>
			Copyright &copy; 2014, 2015 Francis Rowe &lt;info@gluglug.org.uk&gt;<br/>
			This document is released under the Creative Commons Attribution-ShareAlike 4.0 International Public License and all future versions.
			A copy of the license can be found at <a href="../cc-by-sa-4.txt">../cc-by-sa-4.txt</a>.
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			This document is distributed in the hope that it will be useful,
			but WITHOUT ANY WARRANTY; without even the implied warranty of
			MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See <a href="../cc-by-sa-4.txt">../cc-by-sa-4.txt</a> for more information.
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