From owner-freebsd-questions@FreeBSD.ORG Thu Aug 27 06:20:12 2009 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 68830106568D for ; Thu, 27 Aug 2009 06:20:12 +0000 (UTC) (envelope-from seba@sebaseidl.com) Received: from mail.sebaseidl.com (dyn-86.105.65.105.tm.upcnet.ro [86.105.65.105]) by mx1.freebsd.org (Postfix) with ESMTP id 1E6E38FC1C for ; Thu, 27 Aug 2009 06:20:12 +0000 (UTC) Received: from [192.168.0.1] (unknown [81.196.180.58]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) (Authenticated sender: seba@sebaseidl.com) by mail.sebaseidl.com (Postfix) with ESMTP id 237F656531; Thu, 27 Aug 2009 09:04:42 +0300 (EEST) Message-ID: <4A9621FC.5000207@sebaseidl.com> Date: Thu, 27 Aug 2009 09:04:44 +0300 From: Sebastian Seidl User-Agent: Thunderbird 2.0.0.23 (Windows/20090812) MIME-Version: 1.0 To: George Davidovich References: <1338880b0908241129p75b6845cg26d21804e118364@mail.gmail.com> <20090824223247.GD43410@slackbox.xs4all.nl> <1338880b0908252246s21191e83k7c251366b706532@mail.gmail.com> <20090826180741.GA23120@slackbox.xs4all.nl> <20090826191348.GA85581@marvin.optimis.net> <20090826202347.GA27093@slackbox.xs4all.nl> <20090826204539.GC24590@gizmo.acns.msu.edu> <20090826211451.GA88786@marvin.optimis.net> In-Reply-To: <20090826211451.GA88786@marvin.optimis.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-questions@freebsd.org Subject: Re: hard disk failure - now what? 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: Thu, 27 Aug 2009 06:20:12 -0000 George Davidovich wrote: > On Wed, Aug 26, 2009 at 04:45:40PM -0400, Jerry McAllister wrote: > >> On Wed, Aug 26, 2009 at 10:23:47PM +0200, Roland Smith wrote: >> >> >>> On Wed, Aug 26, 2009 at 12:13:48PM -0700, George Davidovich wrote: I >>> remember this special non-condictive 3M fluid that can be used to >>> cool electronics. A group of hackers dunked a complete PC minus the >>> case and power supply in this stuff. The fluid itself was cooled >>> with liquid nitrogen. They everclocked it something wicked. Not very >>> practical though. :-) >>> >> A number of supercomputers from Cray and Control Data and maybe some >> other places used this sort of thing on some experimental systems. I >> don't know if any ever were put in to commercial production. They >> submerged who boards in to it and then supercooled the fluid. I >> don't remember the chemical names. >> > > I do, but have no idea why. > > http://en.wikipedia.org/wiki/Perfluorohexane > > >> The fluid was a relative of Freon and held sufficient levels of oxygen >> to support lung breathers. They used to have a tank with a live mouse >> submerged in it bouncing around and seeming to have no trouble not >> choking or drowning. >> > > >> A variation of it was also researched as a blood substitute for some >> special medical needs. I don't know how far that went. I know it >> is not all fantasy because I saw the live mouse. >> > > I believe you. I saw a similar scene in a movie, so I already knew it > had to be true. Bonus points for anyone that can add to this thread's > collection of off-topic but semi-interesting trivia and name the movie. > > >> I didn't try the blood substitute. >> > > How do you save a drowning mouse? > Use mouse to mouse resuscitation. > > Thanks, I'll be here all week. Try the veal instead. > > If the the freezer doesn't work I suggest finding an identical drive and replace the electronic board. Worked for many damaged drives. Regards, Sebastian Seidl