From owner-freebsd-hardware@FreeBSD.ORG  Fri Jul  1 13:53:28 2005
Return-Path: <owner-freebsd-hardware@FreeBSD.ORG>
X-Original-To: freebsd-hardware@freebsd.org
Delivered-To: freebsd-hardware@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id B05B116A420
	for <freebsd-hardware@freebsd.org>;
	Fri,  1 Jul 2005 13:53:28 +0000 (GMT)
	(envelope-from jiashiun@gmail.com)
Received: from rproxy.gmail.com (rproxy.gmail.com [64.233.170.194])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 5149543D1D
	for <freebsd-hardware@freebsd.org>;
	Fri,  1 Jul 2005 13:53:28 +0000 (GMT)
	(envelope-from jiashiun@gmail.com)
Received: by rproxy.gmail.com with SMTP id r35so263214rna
	for <freebsd-hardware@freebsd.org>;
	Fri, 01 Jul 2005 06:53:27 -0700 (PDT)
DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com;
	h=received:message-id:date:from:reply-to:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references;
	b=BXpu0I15kK4VkjB01/JHgtfQIxEb0zE2dr2flIh8HRRLI8+StTqZTnGqdBUWH2BYBJPbRqnmESjUQ/Bu07iF9U9G93DU8iKEy1brwqwjcmRHKeHnrBWU/jDNwFb6NUl22vh0VwoWuHj2O1vm9tw9B8gI//1lBeWd6s/XZW3TjYY=
Received: by 10.38.67.12 with SMTP id p12mr284910rna;
	Fri, 01 Jul 2005 06:53:27 -0700 (PDT)
Received: by 10.38.12.17 with HTTP; Fri, 1 Jul 2005 06:53:27 -0700 (PDT)
Message-ID: <1d6d20bc050701065367a01e8b@mail.gmail.com>
Date: Fri, 1 Jul 2005 21:53:27 +0800
From: Jia-Shiun Li <jiashiun@gmail.com>
To: Guy Dawson <guy@crossflight.co.uk>
In-Reply-To: <42C5220B.1000203@crossflight.co.uk>
Mime-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable
Content-Disposition: inline
References: <200506290818.j5T8IELL002348@peedub.jennejohn.org>
	<42C3F72E.9070902@speakeasy.net>
	<8f55402905063018441217c95a@mail.gmail.com>
	<20050701015457.GC4460@dragon.NUXI.org>
	<42C5220B.1000203@crossflight.co.uk>
Cc: JM <jmartin37@speakeasy.net>,
	=?WINDOWS-1252?B?lSCV?= <googl3meister@gmail.com>,
	freebsd-amd64@freebsd.org, freebsd-hardware@freebsd.org
Subject: Re: AMD64 X2
X-BeenThere: freebsd-hardware@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
Reply-To: Jia-Shiun Li <jiashiun@gmail.com>
List-Id: General discussion of FreeBSD hardware <freebsd-hardware.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hardware>, 
	<mailto:freebsd-hardware-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-hardware>
List-Post: <mailto:freebsd-hardware@freebsd.org>
List-Help: <mailto:freebsd-hardware-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hardware>, 
	<mailto:freebsd-hardware-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 01 Jul 2005 13:53:28 -0000

On 7/1/05, Guy Dawson <guy@crossflight.co.uk> wrote:
> David O'Brien wrote:
> > It really should be that simple.  All the external interfaces and pins
> > are the same for Athlon64-939 and Athlon64 X2.  They have the same
> > thermal specifications, etc...
>=20
> It's the only way AMD could reasonably do it. To require a different
> motherboard for X1 (?) and X2 chips would have the mobo makers rioting!

That's what Intel did. Requiring a new i945/i955-based board for their
rushed dual-core CPUs. Only use the same socket but varied pin
definition. If you put the new CPU on an i915 board, it will shutdown
automatically to 'protect'. In contrast Athlon64 claimed to be
designed with dual-core capability in mind from the beginning.

Jia-Shiun.