From owner-freebsd-stable Wed Jul 18 10:15:19 2001 Delivered-To: freebsd-stable@freebsd.org Received: from subnet.sub.net (subnet.sub.net [212.227.14.21]) by hub.freebsd.org (Postfix) with ESMTP id 74AAC37B403 for ; Wed, 18 Jul 2001 10:15:15 -0700 (PDT) (envelope-from wolfgang@lyxys.ka.sub.org) Received: from lyxys.ka.sub.org (uucp@localhost) by subnet.sub.net (8.8.8/8.8.8/1.2subnet-linux) with bsmtp id TAA16620; Wed, 18 Jul 2001 19:15:11 +0200 Received: from localhost (1104 bytes) by lyxys.ka.sub.org via sendmail with P:stdio/R:smart_host/T:inet_uusmtp (sender: ) (ident using unix) id for ; Wed, 18 Jul 2001 19:13:28 +0200 (CEST) (Smail-3.2.0.111 2000-Feb-17 #1 built 2000-Aug-23) Message-Id: From: wolfgang@lyxys.ka.sub.org (Wolfgang Zenker) Subject: Re: FreeBSD 4.3 and 6G RAM In-Reply-To: <20010718185206.A94946@student.uu.se> To: Erik Trulsson Date: Wed, 18 Jul 2001 19:13:28 +0200 (CEST) Cc: freebsd-stable@FreeBSD.ORG X-Mailer: ELM [version 2.4ME+ PL92 (25)] MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG > On Wed, Jul 18, 2001 at 09:23:18AM -0700, Tom wrote: > > [..] > > On Wed, 18 Jul 2001, Jonathan Belson wrote: > > [..] > > I believe the Xeon is the only x86 processor that can address more than > > 4GB. > Nope. I just checked the online manuals at www.intel.com and all > Intel's x86 CPUs since Pentium Pro can do this. (This includes Pentium > Pro, Pentium II, Pentium III, Pentium 4 and the Xeon versions of them.) Actually Intel invented two different methods of using more than 4 GB of physical memory: PSE36 (introduced with the Pentium Pro) and PAE (introduced with Pentium II). Apparently all CPUs supporting PAE also support PSE36. Wolfgang To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message