From owner-freebsd-questions@FreeBSD.ORG Tue Aug 5 17:35:44 2003 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id E0AE437B401 for ; Tue, 5 Aug 2003 17:35:44 -0700 (PDT) Received: from juice.thebigchoice.com (pc1-nott2-3-cust18.nott.cable.ntl.com [80.4.204.18]) by mx1.FreeBSD.org (Postfix) with SMTP id 325D543FA3 for ; Tue, 5 Aug 2003 17:35:43 -0700 (PDT) (envelope-from matt@thebigchoice.com) Received: (qmail 12097 invoked from network); 6 Aug 2003 00:35:43 -0000 Received: from localhost.proweb.net (HELO thebigchoice.com) (127.0.0.1) by juice.thebigchoice.com with SMTP; 6 Aug 2003 00:35:43 -0000 Message-ID: <3F304D5F.1040706@thebigchoice.com> Date: Wed, 06 Aug 2003 01:35:43 +0100 From: Matt Heath User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.3) Gecko/20030425 X-Accept-Language: en, en-us MIME-Version: 1.0 To: Michael Haro References: <20030805231844.GA33041@netmug4.netmug.org> In-Reply-To: <20030805231844.GA33041@netmug4.netmug.org> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit cc: Questions@freebsd.org Subject: Re: high-pitched tone from pc speaker X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 06 Aug 2003 00:35:45 -0000 Michael Haro wrote: >I recently installed FreeBSD 4.8 on a server at work. I cvsup'd and >installed an updated world and installed a few ports. I also >rebuilt the kernel to support dual processors. I don't know if this >always happened, but now the on-board pc speaker (the one that goes >beep, not from a sound card) emits a high-pitched tone a minute or two >after boot. > > it could be just be the speaker inducting the electro-magnetic interference from the motherboard when it enabled the second CPU if it is one of those surface contact ones I guess you could break it by forcing something down the little hole it it is one on wires you can test my hypothesis by making the wires longer or you could take out / disable the second CPU and see if that cures it If you have a sensitive sound card you can hear the mb activity as I have myself, mine used to make noise when moved the mouse my first computer the Acorn BBc Micro used to suffer the same problem, you could "hear" scrolling text