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@@ -31,6 +31,42 @@
<p><a href="index.html">Back to main index</a></p>
</div>
+
+ <div class="section" id="cpu_compatibility">
+
+ <h1>A note about CPUs</h1>
+ <p>
+ <a href="http://www.thinkwiki.org/wiki/Category:R400">ThinkWiki</a> has a list of CPUs
+ for this system. The Core 2 Duo P8400 and P8600 are believed to work in libreboot.
+ <b>The Core 2 Duo P9400/P9600/T5870/5670 and Celeron M 575/585 are untested!</b>
+ </p>
+
+ </div>
+
+ <div class="section" id="switchable_graphics">
+
+ <h1>A note about GPUs</h1>
+
+ <p>
+ This guide currently assumes that you have an Intel GPU (non-switchable).
+ Some T400 have switchable graphics (ATI), which means that you can choose between ATI or Intel
+ in the <i>BIOS setup</i>. When switching to Intel, is lenovobios not enabling ATI
+ (where ATI is disabled by default and the system uses the Intel chip), or are they
+ disabling it (where the system uses the ATI chip by default)?
+ </p>
+
+ <p>
+ Basically, switchable graphics is untested, but it should be easy to get it working
+ (if it doesn't already work).
+ </p>
+
+ <h1>CPU paste required</h1>
+
+ <p>
+ See <a href="#paste">#paste</a>.
+ </p>
+
+ </div>
<div class="section">
@@ -182,6 +218,74 @@ Verifying flash... VERIFIED.
</p>
</div>
+
+ <div class="section photos" id="paste">
+
+ <h1>Thermal paste (IMPORTANT)</h1>
+
+ <p>
+ Because part of this procedure involved removing the heatsink, you will need to apply new paste.
+ Arctic Silver 5 is ok. You will also need isopropyl alcohol and an anti-static cloth to clean with.
+ </p>
+
+ <p>
+ When re-installing the heatsink, you must first clean off all old paste with the alcohol/cloth.
+ Then apply new paste. AS5 is also much better than the default paste used on these machines.
+ </p>
+
+ <p>
+ <img src="images/t400/paste.jpg" alt="" />
+ </p>
+
+ </div>
+
+ <div class="section">
+
+ <h1 id="wifi">Wifi</h1>
+
+ <p>
+ The T400 typically comes with an Intel wifi chipset, which does not
+ work without proprietary software. For a list of wifi chipsets that
+ work without proprietary software, see
+ <a href="../hcl/index.html#recommended_wifi">../hcl/index.html#recommended_wifi</a>.
+ </p>
+
+ <p>
+ Some T400 laptops might come with an Atheros chipset, but this is 802.11g only.
+ </p>
+
+ <p>
+ It is recommended that you install a new wifi chipset. This can only
+ be done after installing libreboot, because the original firmware has
+ a whitelist of approved chips, and it will refuse to boot if you
+ use an 'unauthorized' wifi card.
+ </p>
+
+ <p>
+ The following photos show an Atheros AR5B95 being installed, to
+ replace the Intel chip that this T400 came with:<br/>
+ <img src="images/t400/0012.jpg" alt="" />
+ <img src="images/t400/ar5b95.jpg" alt="" />
+ </p>
+
+ </div>
+
+ <div class="section photos">
+
+ <h1 id="memory">Memory</h1>
+
+ <p>
+ You need DDR3 SODIMM PC3-8500 RAM installed, in matching pairs
+ (speed/size). Non-matching pairs won't work. You can also install a
+ single module (meaning, one of the slots will be empty) in slot 0.
+ </p>
+
+ <p>
+ The following photo shows 8GiB (2x4GiB) of RAM installed:<br/>
+ <img src="images/t400/memory.jpg" alt="" />
+ </p>
+
+ </div>
<div class="section">