From owner-freebsd-questions@FreeBSD.ORG Tue Jun 8 20:11:48 2004 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 837D516A4DF for ; Tue, 8 Jun 2004 20:11:48 +0000 (GMT) Received: from internet.potentialtech.com (h-66-167-251-6.phlapafg.covad.net [66.167.251.6]) by mx1.FreeBSD.org (Postfix) with ESMTP id 53E6D43D58 for ; Tue, 8 Jun 2004 20:11:48 +0000 (GMT) (envelope-from wmoran@potentialtech.com) Received: from working.potentialtech.com (pa-plum1c-102.pit.adelphia.net [24.53.179.102]) by internet.potentialtech.com (Postfix) with ESMTP id 66B8469A7E for ; Tue, 8 Jun 2004 16:11:46 -0400 (EDT) Date: Tue, 8 Jun 2004 16:11:45 -0400 From: Bill Moran To: freebsd-questions@freebsd.org Message-Id: <20040608161145.0a4b2525.wmoran@potentialtech.com> In-Reply-To: <40C61BB7.50805@zonnet.nl> References: <20040608122101.GA68204@dogma.freebsd-uk.eu.org> <20040608184216.GA4231@panix.com> <20040608185151.GD70798@dogma.freebsd-uk.eu.org> <20040608190514.GA6271@panix.com> <20040608191506.GE70798@dogma.freebsd-uk.eu.org> <40C61BB7.50805@zonnet.nl> Organization: Potential Technologies X-Mailer: Sylpheed version 0.9.10 (GTK+ 1.2.10; i386-portbld-freebsd4.9) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Subject: Re: [Going further OT] Re: Leaving a server on all day X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 08 Jun 2004 20:11:48 -0000 Nico Meijer wrote: > Hi, > > > What is so bad with the floor? > > Ever move into a beautiful house only to find the floor *flooded* at the > first serious cloud break? ;-) > > BTW - I'd make sure I'd get/have a decent computer case with a decent > PSU with enough room for some decent 80mm or larger low noise fans > rather than opening up the side panel. Perhaps an aluminum (Chieftec > Dragon, anyone?) case with some Enermax and Zalman coolers and PSU might > do the trick. I've {b,s}een told a good airflow (front to back) is king. I saw an article recently by a guy who had a degree in thermal dynamics or something that was dispelling the common myths about PC cooling. His conclusion was basically that airflow is king. You need to move air across the heat sinks that is cooler than the heat sinks are. Sounds simple, but the overall conclusion was that you could improve cooling without increasing noise by ensuring that air from _outside_ the case was flowing directly over the processor heatsink. Reason this works well is becuase the air inside the case is usually considerably warmer than the air outside the case, and moving warm air across the heat sink doesn't accomplish much. By drawing cool air in from outside the case, things stay cooler. Anyway, his suggestion was that the best thing you could do for your cooling rig was to purchase/fab one of those little duct kits that allows the cpu fan to pull air from outside the case. Some cases even have the duct built in (my brother's computer does). -- Bill Moran Potential Technologies http://www.potentialtech.com