From owner-freebsd-questions@FreeBSD.ORG Tue Nov 21 19:02:02 2006 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id E8AF516A415 for ; Tue, 21 Nov 2006 19:02:02 +0000 (UTC) (envelope-from cswiger@mac.com) Received: from pi.codefab.com (pi.codefab.com [199.103.21.227]) by mx1.FreeBSD.org (Postfix) with ESMTP id 0A0A843DD6 for ; Tue, 21 Nov 2006 19:00:39 +0000 (GMT) (envelope-from cswiger@mac.com) Received: from localhost (localhost [127.0.0.1]) by pi.codefab.com (Postfix) with ESMTP id 39DCA5DDB; Tue, 21 Nov 2006 14:00:52 -0500 (EST) X-Virus-Scanned: amavisd-new at codefab.com Received: from pi.codefab.com ([127.0.0.1]) by localhost (pi.codefab.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id YPIDs2vdQmdR; Tue, 21 Nov 2006 14:00:48 -0500 (EST) Received: from [192.168.1.251] (pool-68-161-95-165.ny325.east.verizon.net [68.161.95.165]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by pi.codefab.com (Postfix) with ESMTP id AD6AD5D62; Tue, 21 Nov 2006 14:00:48 -0500 (EST) Message-ID: <45634CDB.80203@mac.com> Date: Tue, 21 Nov 2006 14:00:43 -0500 From: Chuck Swiger User-Agent: Thunderbird 1.5.0.8 (Windows/20061025) MIME-Version: 1.0 To: Zbigniew Szalbot References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-questions@freebsd.org Subject: Re: changing swap size (fwd) X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 21 Nov 2006 19:02:03 -0000 Zbigniew Szalbot wrote: > As an update for RAM problems, it turned out I had to install BX SDRAM > memory to get it to work. Interestingly enough, the original memory was > not labeled as BX... but then... all that matters is that I have now > 512MB RAM which is not too much but all I could afford to get at this > point (BX RAM is much more expensive). I am interested whether this > added RAM will minimize/exclude swap use. The added RAM will certainly help to minimize or reduce swapping, if it is occurring. But you might want to post the output of "vmstat -s" after the system has been under normal load for us to evaluate how much benefit you're likely to see. With regard to what I assume you have is a 440BX chipset, the RAM requirements for it seem to be [1]: > Description > intel BX chipset won't recognize SDRAM correct. > > Solution > intel 440BX chipset has certain limitations: > > 1. A maximum of 1GB RAM can be adressed. > 2. Only SDRAM modules consisting of max. 64MBit (unbuffered) or 128MBit (buffered / registered) chips are supported. > > Largest supported SDRAM modules (unbuffered): > 4 x 64MBit = 32MB > 8 x 64MBit = 64MB > 16 x 64MBit = 128MB (double sided OR double height) > 32 x 64MBit = 256MB (double sided AND double height -> KEEP AWAY !) > > Largest supported SDRAM modules (registered / buffered -> look for row of small buffering chips on module): > 4 x 128MBit = 64MB > 8 x 128MBit = 128MB > 16 x 128MBit = 256MB (double sided OR double height) > 32 x 128MBit = 512MB (double sided AND double height -> KEEP AWAY !) -- -Chuck [1]: Second or third hit for "BX SDRAM" gives: www.plasma-online.com/english/help/solutions/bx_chipset_sdram.html