From owner-freebsd-questions@FreeBSD.ORG Sun May 20 16:41:38 2007 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id B541B16A421 for ; Sun, 20 May 2007 16:41:38 +0000 (UTC) (envelope-from rsmith@xs4all.nl) Received: from smtp-vbr9.xs4all.nl (smtp-vbr9.xs4all.nl [194.109.24.29]) by mx1.freebsd.org (Postfix) with ESMTP id 5179D13C4D5 for ; Sun, 20 May 2007 16:41:38 +0000 (UTC) (envelope-from rsmith@xs4all.nl) Received: from slackbox.xs4all.nl (slackbox.xs4all.nl [213.84.242.160]) by smtp-vbr9.xs4all.nl (8.13.8/8.13.8) with ESMTP id l4KGfaxF071875; Sun, 20 May 2007 18:41:37 +0200 (CEST) (envelope-from rsmith@xs4all.nl) Received: by slackbox.xs4all.nl (Postfix, from userid 1001) id 4BA60B826; Sun, 20 May 2007 18:41:36 +0200 (CEST) Date: Sun, 20 May 2007 18:41:36 +0200 From: Roland Smith To: Edward Ruggeri Message-ID: <20070520164136.GA65659@slackbox.xs4all.nl> Mail-Followup-To: Edward Ruggeri , free-bsd-questions References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable In-Reply-To: X-GPG-Fingerprint: 1A2B 477F 9970 BA3C 2914 B7CE 1277 EFB0 C321 A725 X-GPG-Key: http://www.xs4all.nl/~rsmith/pubkey.txt X-GPG-Notice: If this message is not signed, don't assume I sent it! User-Agent: Mutt/1.5.15 (2007-04-06) X-Virus-Scanned: by XS4ALL Virus Scanner Cc: free-bsd-questions Subject: Re: Random Restarts? 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: Sun, 20 May 2007 16:41:38 -0000 On Sun, May 20, 2007 at 11:03:25AM -0500, Edward Ruggeri wrote: > Hi, >=20 > My system randomly reboots, usually in the evening. It is definitely no= t a=20 > soft reboot, since the filesystems don't get properly dismounted. My=20 > suspicion is that it is a heat related issue -- I do leave the computer= =20 > running just about all day long, and it has started to get warm. Then= =20 > again, it's coolest in the evening... Try and install the mbmon port, and see if it works on your machine. If so, start a cron job that appends mbmon output to a file say every 15 minutes. If it's a heat buildup issue in a monitored component, it would sh= ow. I wonder though. My machine usually doesn't need a day to heat up after a cold start. An hour or so usually suffices. Other causes could be a spike in the line voltage due to a large device switching on or off nearby. Or an underrated power supply overloaded through a cron job. Roland --=20 R.F.Smith http://www.xs4all.nl/~rsmith/ [plain text _non-HTML_ PGP/GnuPG encrypted/signed email much appreciated] pgp: 1A2B 477F 9970 BA3C 2914 B7CE 1277 EFB0 C321 A725 (KeyID: C321A725)