From owner-freebsd-stable@FreeBSD.ORG Wed Jan 28 20:54:57 2009 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 86EA4106568B for ; Wed, 28 Jan 2009 20:54:57 +0000 (UTC) (envelope-from ulf@alameda.net) Received: from mail.alameda.net (mail.alameda.net [194.55.105.10]) by mx1.freebsd.org (Postfix) with ESMTP id 6F1538FC1F for ; Wed, 28 Jan 2009 20:54:57 +0000 (UTC) (envelope-from ulf@alameda.net) Received: by mail.alameda.net (Postfix, from userid 1000) id 895D11CC82; Wed, 28 Jan 2009 12:28:01 -0800 (PST) Date: Wed, 28 Jan 2009 12:28:01 -0800 From: Ulf Zimmermann To: Andrew Snow Message-ID: <20090128202801.GH75267@evil.alameda.net> References: <497AF4C7.3080309@icyb.net.ua> <49804F0C.3000400@icyb.net.ua> <4980B072.3050205@modulus.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4980B072.3050205@modulus.org> User-Agent: Mutt/1.4.2.2i Organization: Alameda Networks, Inc. X-Operating-System: FreeBSD 5.5-PRERELEASE MailScanner-NULL-Check: 1233779285.92041@1YCHHhvFtWoxqfxPiIsd1w X-ANI-MailScanner-Information: Please contact the ISP for more information X-MailScanner-ID: 895D11CC82.E67FA X-ANI-MailScanner: Found to be clean X-ANI-MailScanner-From: ulf@alameda.net Cc: freebsd-stable@freebsd.org, Andriy Gapon Subject: Re: problem with "cold" hardware? [Was: panic in callout_reset: bad link in callwheel] X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: ulf@Alameda.net List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 28 Jan 2009 20:54:58 -0000 On Thu, Jan 29, 2009 at 06:22:26AM +1100, Andrew Snow wrote: > Andriy Gapon wrote: > >Previously I heard about problems with hardware running hot, but not > >with it being "cold". I put the word in quotes, because the system is in > >a room with normal room temperature. > > > >Any guesses what hardware part might be acting up like this? > > Power supply. Give all the capacitors a visual check. Or you may be > drawing too much power from your rated supply. Another thing could be bad soldering of the memory slot. It might not have a full contact when at room temperature, but as it heats up by 10-20C inside the case it might expand and give full contact. This could apply to copper runs on the board, contact points from the board to the memory slot, contact from the slot to the memory. -- Regards, Ulf. --------------------------------------------------------------------- Ulf Zimmermann, 1525 Pacific Ave., Alameda, CA-94501, #: 510-865-0204 You can find my resume at: http://www.Alameda.net/~ulf/resume.html