From owner-freebsd-hackers Tue Mar 5 11:34:32 2002 Delivered-To: freebsd-hackers@freebsd.org Received: from bogslab.ucdavis.edu (bogslab.ucdavis.edu [169.237.68.34]) by hub.freebsd.org (Postfix) with ESMTP id 4731637B404 for ; Tue, 5 Mar 2002 11:34:29 -0800 (PST) Received: from thistle.bogs.org (thistle.bogs.org [198.137.203.61]) by bogslab.ucdavis.edu (8.9.3/8.9.3) with ESMTP id LAA81681 for ; Tue, 5 Mar 2002 11:34:22 -0800 (PST) (envelope-from greg@bogslab.ucdavis.edu) Received: from thistle.bogs.org (localhost [127.0.0.1]) by thistle.bogs.org (8.11.3/8.11.3) with ESMTP id g25JXe975858 for ; Tue, 5 Mar 2002 11:33:41 -0800 (PST) (envelope-from greg@thistle.bogs.org) Message-Id: <200203051933.g25JXe975858@thistle.bogs.org> To: hackers@FreeBSD.ORG X-To: Michael Scheidell X-Sender: owner-freebsd-hackers@FreeBSD.ORG Subject: Re: Help! serious problem. In-reply-to: Your message of "Tue, 05 Mar 2002 12:45:55 EST." <200203051745.g25Hjuh49009@scanner.secnap.net> Reply-To: gkshenaut@ucdavis.edu Date: Tue, 05 Mar 2002 11:33:40 -0800 From: Greg Shenaut Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG In message <200203051745.g25Hjuh49009@scanner.secnap.net>, Michael Scheidell cleopede: >> > >> > Running FreeBSD 4.5 and it keeps rebooting around the same time >> > late during the night. > >had two similar problem's >#1, client computer, 4:59pm every weekday, rebooted. >Seems luser plugged their POSTAGE METER into same UPS as the computer >4:59pm, luser gets up and 'stamps' today's outgoing email! > (massive surge, big magnets, negative neutrinos flying around) > >#2, 8:15am (and then 9:15am after DST change) > lights in building turned on. > T1 line from TELCO was shorted to house ground. > House wiring was NOT grounded, so house wiring found ground through T1! Another one I've seen is that the building air conditioners all get turned off at the end of the workday, and it takes a certain amount of time before the room the computers is in gets so hot that the computers start getting flaky. Greg Shenaut To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message