From owner-freebsd-questions@FreeBSD.ORG Tue Jul 29 02:02:18 2003 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id E9EBC37B401; Tue, 29 Jul 2003 02:02:18 -0700 (PDT) Received: from puffin.mail.pas.earthlink.net (puffin.mail.pas.earthlink.net [207.217.120.139]) by mx1.FreeBSD.org (Postfix) with ESMTP id 442AF43FBD; Tue, 29 Jul 2003 02:02:18 -0700 (PDT) (envelope-from tlambert2@mindspring.com) Received: from user-38lc0dr.dialup.mindspring.com ([209.86.1.187] helo=mindspring.com) by puffin.mail.pas.earthlink.net with asmtp (SSLv3:RC4-MD5:128) (Exim 3.33 #1) id 19hQN5-00056M-00; Tue, 29 Jul 2003 02:02:16 -0700 Message-ID: <3F2637C0.78116E6E@mindspring.com> Date: Tue, 29 Jul 2003 02:00:48 -0700 From: Terry Lambert X-Mailer: Mozilla 4.79 [en] (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: freebsd_deamon@gmx.net References: <27727.1059465900@www22.gmx.net> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-ELNK-Trace: b1a02af9316fbb217a47c185c03b154d40683398e744b8a42329eeb64dee20202acfbd1d456f9b55667c3043c0873f7e350badd9bab72f9c350badd9bab72f9c cc: freebsd-smp@freebsd.org cc: freebsd-questions@freebsd.org Subject: Re: PIII SMP X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 29 Jul 2003 09:02:19 -0000 freebsd_deamon@gmx.net wrote: > > dear list, > > buying two PIII for a dual system ... what do i have to pay attention to > (besides the requirements of the M/B)? > aka ... are all PIII SMP capable? You want the stepping to be the same. You may not be happy with P III's. I'm not sure if the SMP code has been changed to handle only the xAPIC now, or not; there was a discussion a little while back about supporting more than 16 CPUs in a machine, which would require this change. I know that my Dual P90 machine has been unable to run -current for quite some time due to some changes that went in to the low level mp_machdep code. See also Intel's site: -- Terry