From owner-freebsd-hackers Thu Aug 2 9:34:16 2001 Delivered-To: freebsd-hackers@freebsd.org Received: from mail.wrs.com (unknown-1-11.windriver.com [147.11.1.11]) by hub.freebsd.org (Postfix) with ESMTP id 54EBA37B401 for ; Thu, 2 Aug 2001 09:34:12 -0700 (PDT) (envelope-from jhb@FreeBSD.org) Received: from laptop.baldwin.cx (john@[147.11.46.217]) by mail.wrs.com (8.9.3/8.9.1) with ESMTP id JAA25236; Thu, 2 Aug 2001 09:33:34 -0700 (PDT) Message-ID: X-Mailer: XFMail 1.4.0 on FreeBSD X-Priority: 3 (Normal) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8bit MIME-Version: 1.0 In-Reply-To: Date: Thu, 02 Aug 2001 09:33:34 -0700 (PDT) From: John Baldwin To: Kenneth Wayne Culver Subject: Re: How to visit physical memory above 4G? Cc: freebsd-hackers@FreeBSD.org, craig , Terry Lambert , Rik van Riel Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On 02-Aug-01 Kenneth Wayne Culver wrote: > Also, the PIII CAN'T natively support more than 4GB of ram. If a > particular PIII motherboard supports this, then it's using some kind of > wierd chipset that allows this to happen. 4GB is the limit with a 32 bit > chip I believe; and the PIII is a 32-bit chip. > > Ken Go look at some Intel docs. P6 chips since the Pentium Pro (yes, before Pentium II) have supported PAE which allows for a 36-bit physical address. -- John Baldwin -- http://www.FreeBSD.org/~jhb/ PGP Key: http://www.baldwin.cx/~john/pgpkey.asc "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message