From owner-freebsd-stable Thu Mar 9 7:34:10 2000 Delivered-To: freebsd-stable@freebsd.org Received: from rover.village.org (rover.village.org [204.144.255.49]) by hub.freebsd.org (Postfix) with ESMTP id D396837B782 for ; Thu, 9 Mar 2000 07:34:05 -0800 (PST) (envelope-from imp@harmony.village.org) Received: from harmony.village.org (harmony.village.org [10.0.0.6]) by rover.village.org (8.9.3/8.9.3) with ESMTP id CAA66946 for ; Thu, 9 Mar 2000 02:13:17 -0700 (MST) (envelope-from imp@harmony.village.org) Received: from harmony.village.org (localhost.village.org [127.0.0.1]) by harmony.village.org (8.9.3/8.8.3) with ESMTP id CAA08072; Thu, 9 Mar 2000 02:13:00 -0700 (MST) Message-Id: <200003090913.CAA08072@harmony.village.org> To: Bob K Subject: Re: OT: Cooling hard drives Cc: freebsd-stable@FreeBSD.ORG In-reply-to: Your message of "Thu, 09 Mar 2000 02:22:54 EST." References: Date: Thu, 09 Mar 2000 02:13:00 -0700 From: Warner Losh Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG In message Bob K writes: : I think there's more "professional" solutions out there at this point, but : I've found that a case fan screwed on to the heatsinks salvaged from two : dead CPU fans sitting on top of the drive works rather nicely. My solution to the drive heating problem was to take an old box fan from a IBM AT (or similar) and cut a circular hole in three of the kick out pannels in front that the drive was behind. I then mounted the fan to said three panels, connected it to 12V and I was table to reduce the temp of my IBM drive from 56C to 38C. It looks nice, does a damn fine job and is quieter than many of the smaller fans I've found in the one kick panel high units. Since I blow air OUT rather than IN, I don't need a filter. I desided to blow the air OUT since the other fan at the top of the case blew air out and that the fans at the bottom of the case would blow the air in. There were plenty of holes on the sides for air intake. I had planned to have an intake fan at the bottom, but it turns out that the CPU and the disk drives are staying cool enough w/o it. It almost looks like it belongs there, which is kinda scary... Warner To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message