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<!DOCTYPE html>
<html>
<head>
	<meta charset="utf-8">
	<meta name="viewport" content="width=device-width, initial-scale=1">

	<style type="text/css">
		@import url('../css/main.css');
	</style>

	<title>ASUS KFSN4-DRE server/workstation board</title>
</head>

<body>

	<div class="section">
		<h1 id="pagetop">ASUS KFSN4-DRE server/workstation board</h1>

			<p>
				This is a server board using AMD hardware (Fam10h). It can also be used
				for building a high-powered workstation. Powered by libreboot.
			</p>

			<p>
				<b>
					NOTE: This board is unsupported in libreboot 20150518.
					To use it in libreboot, for now, you must build for it
					from source using the libreboot git repository.
				</b>
			</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>.
			</p>
	</div>

	<div class="section">
		<h1 id="formfactor">Form factor</h1>
			<p>
				These boards use the SSI EEB 3.61 form factor; make sure
				that your case supports this. This form factor is similar
				to E-ATX in that the size is identical, but the position of
				the screws are different.
			</p>
	</div>
	
	<div class="section">
		<h1 id="flashchips">Flash chips</h1>
			<p>
				These boards use LPC flash (not SPI), in a PLCC socket. The default flash size
				1MiB (8Mbits), and can be upgraded to 2MiB (16Mbits).
				SST49LF080A is the default that the board uses.
				SST49LF016C is an example of a 2MiB (16Mbits) chip, which might work.
				It is believed that 2MiB (16Mbits) is the maximum size available for the flash chip.
			</p>
	</div>

	<div class="section">
		<h1 id="graphics">Native graphics initialization</h1>
			<p>
				Native graphics initialization exists (XGI Z9s) for this board.
				Framebuffer- and text-mode both work. A serial port is also
				available.
			</p>
	</div>

	<div class="section">
		<h1>Memory</h1>
			<p>
				DDR2 533/667 Registered ECC. 16 slots. Total capacity up to 64GiB.
			</p>
	</div>

	<div class="section">
		<h1 id="hexcore">Hex-core CPUs</h1>
			<p>
				PCB revision 1.05G is the best version of this board (the
				revision number will be printed on the board), because it
				can use dual hex-core CPUs (Opteron 2400/8400 series). Other
				revisions are believed to only support dual quad-core CPUs.
			</p>
	</div>

	<div class="section">
		<h1 id="issues">Current issues</h1>
			<ul>
				<li>
					There seems to be a 30 second bootblock delay (observed by tpearson);
					the system otherwise boots and works as expected.
					See <a href="text/kfsn4-dre/bootlog.txt">text/kfsn4-dre/bootlog.txt</a>
					- this uses the 'simple' bootblock, while tpearson uses the 'normal'
					bootblock. He says that he will look into this.
				</li>
			</ul>
	</div>

	<div class="section">
		<h1>Other information</h1>
			<p>
				<a href="ftp://ftp.sgi.com/public/Technical%20Support/Pdf%20files/Asus/kfsn4-dre.pdf">specifications</a>
			</p>
	</div>

	<div class="section">

		<p>
			Copyright &copy; 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>.
		</p>

		<p>
			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.
		</p>
		
	</div>

</body>
</html>