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Update the supported platforms.
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<sect1 id="proc">
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<sect1 id="proc">
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<title>Supported Processors and Motherboards</title>
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<title>Supported Processors and Motherboards</title>
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<para>&os;/&arch; has supported the &arch.print;
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<para>Since mid-2003 &os;/&arch; has supported the &arch.print;
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(<quote>Hammer</quote>) architecture since mid-2003. It made its
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(<quote>Hammer</quote>) and Intel EM64T architecture,
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first debut as an experimental release based on &os;
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and is now one of the Tier-1 platforms (fully
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5.1-RELEASE.</para>
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supported architecture), which are expected to be Production
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Quality with respects to all aspects of the &os; operating system,
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including installation and development environments.</para>
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<para>As of this writing, this port supports the Athlon64
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<para>Note that there are two names for this architecture,
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(<quote>Clawhammer</quote>) and Opteron
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AMD64 (AMD) and Intel EM64T (Extended Memory 64-bit Technology).
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(<quote>Sledgehammer</quote>) machines. The largest tested
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64-bit mode of the two architectures are almost compatible
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with each other, and &os;/&arch; should support the both.</para>
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<para>As of this writing, the following processors are
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supported:</para>
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<itemizedlist>
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<listitem>
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<para>AMD Athlon64 (<quote>Clawhammer</quote>).</para>
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</listitem>
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<listitem>
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<para>AMD Opteron (<quote>Sledgehammer</quote>).</para>
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</listitem>
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<listitem>
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<para>Intel 64-bit Xeon (<quote>Nacona</quote>).
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This processor is fabricated on 90nm process technology, and operates
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with 2.80 to 3.60 GHz (FSB 800MHz) and Intel E7520/E7525/E7320 chipsets.</para>
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</listitem>
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<listitem>
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<para>Intel Pentium 4 Processor supporting Intel EM64T
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(<quote>Prescott</quote>).
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This is fabricated on 90nm process technology,
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uses FC-LGA775 package, and operates with 3.20F/3.40F/3.60F GHz
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and Intel 925X Express chipsets.
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The corresponding S-Spec numbers are SL7L9, SL7L8, SL7LA, SL7NZ, SL7PZ,
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and SL7PX. Note that processors marked as 5xx numbers do not support
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EM64T.</para>
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</listitem>
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</itemizedlist>
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<para>Intel EM64T is an extended version of IA-32 (x86) and
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different from Intel IA-64 (Itanium) architecture, which &os;/ia64
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supports. Some Intel's old documentation refers to Intel EM64T as
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<quote>64-bit extension technology</quote> or <quote>IA-32e</quote>.</para>
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<para>The largest tested
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memory configuration to date is 8GB. SMP support has been
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memory configuration to date is 8GB. SMP support has been
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recently completed and is reasonably robust.</para>
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recently completed and is reasonably robust.</para>
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@ -50,12 +50,14 @@
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<title>About &os;</title>
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<title>About &os;</title>
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<para>&os; is an operating system based on 4.4 BSD Lite for
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<para>&os; is an operating system based on 4.4 BSD Lite for
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Intel, AMD, Cyrix or NexGen <quote>x86</quote> based PC
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DEC/Compaq/HP Alpha/AXP computers (alpha),
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hardware (&i386;), NEC PC-9801/9821 series PCs and compatibles
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AMD64 and Intel EM64T based PC hardware (amd64),
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(pc98), DEC/Compaq/HP Alpha computers (alpha),
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Intel, AMD, Cyrix or NexGen <quote>x86</quote> based PC hardware (i386),
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and &ultrasparc; machines (&sparc64;). Versions
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Intel Itanium Processor based computers (ia64),
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for the IA64 (ia64), &powerpc; (&powerpc;), and AMD
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NEC PC-9801/9821 series PCs and compatibles (pc98),
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<quote>Hammer</quote> (amd64) architectures are currently under
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and &ultrasparc; machines (sparc64). Versions
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for the &powerpc; (powerpc), and &mips; (mips)
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architectures are currently under
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development as well. &os; works with a wide variety of
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development as well. &os; works with a wide variety of
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peripherals and configurations and can be used for everything
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peripherals and configurations and can be used for everything
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from software development to games to Internet Service
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from software development to games to Internet Service
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