From owner-freebsd-hackers Tue Sep 24 8: 7:43 2002 Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.FreeBSD.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id B630837B401 for ; Tue, 24 Sep 2002 08:07:41 -0700 (PDT) Received: from cse.cs.huji.ac.il (cse.cs.huji.ac.il [132.65.16.30]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4D74543E75 for ; Tue, 24 Sep 2002 08:07:41 -0700 (PDT) (envelope-from danny@cs.huji.ac.il) Received: from pampa.cs.huji.ac.il ([132.65.80.32] ident=danny) by cse.cs.huji.ac.il with esmtp id 17trHn-000IVQ-00 for freebsd-hackers@freebsd.org; Tue, 24 Sep 2002 18:07:39 +0300 X-Mailer: exmh version 2.5 07/13/2001 with nmh-1.0.4 To: freebsd-hackers@freebsd.org Subject: 3.5GB memory limit? Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Tue, 24 Sep 2002 18:07:39 +0300 From: Danny Braniss Message-Id: 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 hi all, im confused: bios says 4096 MB FreeBSD says: real memory = 3824680960 (3735040K bytes) btw, windows 2k also. the S2466 Tiger MPX manual says: * The AMD-760 MPX requieres a portion of memory to be reserved for PCI devices ... the Addendum says: * AMD chipset architecture requieres memory above 3.5GB to be reserved for PCI devices. so Q1: is this AMD specific, or also true for P3/P4? Q2: is there any way of accessing the 'lost' memory? ie some device driver? comments? thanks, danny To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message