From owner-freebsd-amd64@FreeBSD.ORG Tue Jun 14 16:53:29 2005 Return-Path: X-Original-To: freebsd-amd64@FreeBSD.ORG Delivered-To: freebsd-amd64@FreeBSD.ORG Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 2783616A41C for ; Tue, 14 Jun 2005 16:53:29 +0000 (GMT) (envelope-from olli@lurza.secnetix.de) Received: from lurza.secnetix.de (lurza.secnetix.de [83.120.8.8]) by mx1.FreeBSD.org (Postfix) with ESMTP id 7D43543D48 for ; Tue, 14 Jun 2005 16:53:28 +0000 (GMT) (envelope-from olli@lurza.secnetix.de) Received: from lurza.secnetix.de (atmzeb@localhost [127.0.0.1]) by lurza.secnetix.de (8.13.1/8.13.1) with ESMTP id j5EGrQEh018125 for ; Tue, 14 Jun 2005 18:53:26 +0200 (CEST) (envelope-from oliver.fromme@secnetix.de) Received: (from olli@localhost) by lurza.secnetix.de (8.13.1/8.13.1/Submit) id j5EGrQMv018124; Tue, 14 Jun 2005 18:53:26 +0200 (CEST) (envelope-from olli) Date: Tue, 14 Jun 2005 18:53:26 +0200 (CEST) Message-Id: <200506141653.j5EGrQMv018124@lurza.secnetix.de> From: Oliver Fromme To: freebsd-amd64@FreeBSD.ORG In-Reply-To: <200506140932.10548.fcash@ocis.net> X-Newsgroups: list.freebsd-amd64 User-Agent: tin/1.5.4-20000523 ("1959") (UNIX) (FreeBSD/4.11-RELEASE (i386)) MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit Cc: Subject: Re: Athlon64 board with ECC support? X-BeenThere: freebsd-amd64@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: freebsd-amd64@FreeBSD.ORG List-Id: Porting FreeBSD to the AMD64 platform List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 14 Jun 2005 16:53:29 -0000 Freddie Cash wrote: > On June 14, 2005 09:10 am, Oliver Fromme wrote: > > That's interesting. I've seen several Athlon64 and Opteron > > systems, and it was my impression that the latter were all > > noisier and ran "hotter". But my impression could be wrong. > > All Athlon64 systems are single-CPU setups. They're also usually in large > tower cases with large (quiet) fans, and tonnes of heatsinks. Athlon64 > CPUs also support various throttling and power save modes that further > reduce the noise / heat. > > While it is possible to have single-CPU Opteron systems, most are dual-CPU > or quad-CPU. The systems which I referred to were single Opterons. > > It's also interesting to note that there are now plenty of > > Athlon64-based notebooks, but I haven't seen any Opteron > > notebook so far, which lead me to believe that the Athlon64 > > has some power-saving features which the Opteron lacks. > > Does the Opteron have "PowerNow" or "Cool'n'Quiet"? > > The latest Opterons do, not sure about older Opterons. But, Opterons are > designed for multi-CPU setups. Only the 2xx and 8xx Opterons. The (cheap) 1xx Opterons are for single-CPU systems. _If_ I buy an Opteron system (which I'm currently not sure about), it'll be a single-CPU system. That's already expensive enough, and I don't need that much CPU power, so why waste money on a second processor? > Why would you want to run one in a laptop? I don't want to. I'm just making observations and try to find some sense in them. :-) Best regards Oliver -- Oliver Fromme, secnetix GmbH & Co KG, Oettingenstr. 2, 80538 München Any opinions expressed in this message may be personal to the author and may not necessarily reflect the opinions of secnetix in any way. "If you think C++ is not overly complicated, just what is a protected abstract virtual base pure virtual private destructor, and when was the last time you needed one?" -- Tom Cargil, C++ Journal