From owner-freebsd-questions Fri Mar 22 18:57:04 1996 Return-Path: owner-questions Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id SAA23267 for questions-outgoing; Fri, 22 Mar 1996 18:57:04 -0800 (PST) Received: from genesis.atrad.adelaide.edu.au (genesis.atrad.adelaide.edu.au [129.127.96.120]) by freefall.freebsd.org (8.7.3/8.7.3) with ESMTP id SAA23258 for ; Fri, 22 Mar 1996 18:56:57 -0800 (PST) Received: from msmith@localhost by genesis.atrad.adelaide.edu.au (8.6.12/8.6.9) id NAA21389; Sat, 23 Mar 1996 13:42:16 +1030 From: Michael Smith Message-Id: <199603230312.NAA21389@genesis.atrad.adelaide.edu.au> Subject: Re: Help. Adding memory broke my machine To: dwhite@resnet.uoregon.edu Date: Sat, 23 Mar 1996 13:42:16 +1030 (CST) Cc: mathezer@newera.ab.ca, questions@freebsd.org In-Reply-To: from "Doug White" at Mar 22, 96 04:36:38 pm MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-questions@freebsd.org X-Loop: FreeBSD.org Precedence: bulk Doug White stands accused of saying: > > simm. The instructions for the board say that I can not have all 6 > > memory slots filled but that 4 30 pin and 1 72 pin simm a supported > > configuration. Indeed, Windows 95 works fine with the added memory, > > however FreeBSD does not. > > I think I'd believe your motherboard manual. One or the other, but not both. I have a similar board; It's an Expert 4044, based on the OPTI 82C895. 4x30 and 1x72 is a supported configuration for some memory sizes, but 16+8 is not one of them. I suspect that if you were to use such a configuration, Windows would probably run fine, but FreeBSD would almost certainly crash. If you were to punish Windows very hard, it might also crash, or it might possibly have a better memory-sizing algorithm that can detect the sort of page-wrap problem that you'd be having. > > It actually performs much slower than with 16 M than with 24M or memory. > > Plus as soon as I try to do anything in X and I presume anything more > > intensive in general I get sig 10s and sig 11s all over the place. This is a Big Hint that there is something Very Wrong with your hardware. -- ]] Mike Smith, Software Engineer msmith@atrad.adelaide.edu.au [[ ]] Genesis Software genesis@atrad.adelaide.edu.au [[ ]] High-speed data acquisition and (GSM mobile) 0411-222-496 [[ ]] realtime instrument control (ph/fax) +61-8-267-3039 [[ ]] Collector of old Unix hardware. "Where are your PEZ?" The Tick [[