From owner-freebsd-hardware Wed Oct 14 14:28:39 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id OAA28543 for freebsd-hardware-outgoing; Wed, 14 Oct 1998 14:28:39 -0700 (PDT) (envelope-from owner-freebsd-hardware@FreeBSD.ORG) Received: from laker.net (jet.laker.net [205.245.74.2]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id OAA28538; Wed, 14 Oct 1998 14:28:36 -0700 (PDT) (envelope-from sfriedri@laker.net) Received: from nt (digital-pbi-145.laker.net [208.0.233.45]) by laker.net (8.9.0/8.9.LAKERNET.NO-SPAM.SPAMMERS.AND.RELAYS.WILL.BE.TRACKED.AND.PROSECUTED.) with SMTP id RAA04870; Wed, 14 Oct 1998 17:28:07 -0400 Message-Id: <199810142128.RAA04870@laker.net> From: "Steve Friedrich" To: "freebsd-questions@FreeBSD.ORG" , "John" Cc: "freebsd-hardware@FreeBSD.ORG" Date: Wed, 14 Oct 1998 17:26:51 -0400 Reply-To: "Steve Friedrich" X-Mailer: PMMail 98 Professional (2.01.1600) For Windows NT (4.0.1381;3) MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Subject: Re: FreeBSD, maximum memory and 440TX chipset Sender: owner-freebsd-hardware@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Wed, 14 Oct 1998 19:05:24 +0100, John wrote: >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). You have to check each board you're looking at to see which "glue" chipset it uses. Intel makes several, as well as a few other manufacturers. Take a look at: http://www.anandtech.com/chipset.html Unix systems measure "uptime" in years, Winblows measures it in minutes. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message