From owner-freebsd-questions Wed Oct 14 12:30:12 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id MAA12793 for freebsd-questions-outgoing; Wed, 14 Oct 1998 12:30:12 -0700 (PDT) (envelope-from owner-freebsd-questions@FreeBSD.ORG) Received: from post.mail.demon.net (post-11.mail.demon.net [194.217.242.40]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id MAA12719; Wed, 14 Oct 1998 12:30:05 -0700 (PDT) (envelope-from freebsd-root@i-zone.demon.co.uk) Received: from [158.152.227.78] (helo=i-zone.demon.co.uk) by post.mail.demon.net with smtp (Exim 2.05 #1) id 0zTWc9-00037q-00; Wed, 14 Oct 1998 19:29:42 +0000 Message-ID: Date: Wed, 14 Oct 1998 19:05:24 +0100 To: freebsd-questions@FreeBSD.ORG Cc: freebsd-hardware@FreeBSD.ORG From: John Subject: Re: FreeBSD, maximum memory and 440TX chipset References: <199810141555.IAA01000@dingo.cdrom.com> In-Reply-To: <199810141555.IAA01000@dingo.cdrom.com> MIME-Version: 1.0 X-Mailer: Turnpike (32) Version 4.00 <5jmCrxUbpyYdwGXid1yqlWD9$N> Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG In article <199810141555.IAA01000@dingo.cdrom.com>, Mike Smith writes >> Hello experts >> >> (cc'd to freebsd-hardware where it is also relevant) >> >> I have an Abit PX5 (440TX) motherboard. I have been advised that, as a >> win98 machine at least, adding more RAM than 64MB will see a performance >> hit in the order of 10% as the chipset cannot cache more than 64MB. >> >> The cpu is an Intel P166MMX >> >> The board can take up to 256MB >> >> My questions: >> >> Will I see this performance hit in FreeBSD? i.e. is this issue solely >> chipset specific? Does anyone else here run more than 64MB on a 440tx >> chipset? > >It's a feature of the 430TX and 430VX chipsets, and yes, once you start >using memory over the 64M mark you will find it hurts FreeBSD too. > Argh. Thanks for clarifying. Can you tell me what other boards are out there that don't exhibit this (cough) feature, or if they do, at what RAM capacity do they exhibit it? (just wanting to avoid the same sort of mistake again). Thanks -- John To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message