From owner-freebsd-questions@freebsd.org Thu Aug 18 10:11:34 2016 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 7EC5EBBE314 for ; Thu, 18 Aug 2016 10:11:34 +0000 (UTC) (envelope-from ralf.mardorf@rocketmail.com) Received: from nm40-vm9.bullet.mail.ir2.yahoo.com (nm40-vm9.bullet.mail.ir2.yahoo.com [212.82.97.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id CA18F1947 for ; Thu, 18 Aug 2016 10:11:33 +0000 (UTC) (envelope-from ralf.mardorf@rocketmail.com) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rocketmail.com; s=s2048; t=1471514903; bh=LwAwJjxzBN6DACJeH5IUDFSWqzQbdvG3UgsHExgJn8A=; h=Date:From:To:Subject:In-Reply-To:References:From:Subject; b=T9WwjRJB6jGcjq/eV/zrgipUO3TFglucW4dvqi4B9b9liiYpSStnSJEgdvNjOgGSnnbrvvNGC8u2jliTvSCQMaaXEy0SVu2+ntcDkcFHc1z8X8kcHq9FMYnt1/TQ3iUCP03ifbNlOyPzBXR5fKX5o0SmpySqIEQpgH5rl+yvNLoulo0JNeuI05nsMha15Xj/wmHIvh1InHbiZiQBLmV0dEW1qOgHfiC6IrPMk1KxPKYrjaprTAzyb0BezMrO/KVnZCZ2AU0STMAwcjXXB7P5daW7zdgj9Ftr3s/1CPQRBF1gbq/1eEQQ4gYYMar/d/gSi4BqTvk8h3hZiOxM75vA2A== Received: from [212.82.98.127] by nm40.bullet.mail.ir2.yahoo.com with NNFMP; 18 Aug 2016 10:08:23 -0000 Received: from [46.228.39.79] by tm20.bullet.mail.ir2.yahoo.com with NNFMP; 18 Aug 2016 10:08:23 -0000 Received: from [127.0.0.1] by smtp116.mail.ir2.yahoo.com with NNFMP; 18 Aug 2016 10:08:23 -0000 X-Yahoo-Newman-Id: 549830.80335.bm@smtp116.mail.ir2.yahoo.com X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: mpyD2wkVM1lIvB2neYVEzTQ.DnZvZOdG1_Bsrq_6o0rV6m6 pKiJuJQonzoXM3YobGhlg8F66WOJaBC_GW.TPiwcytWiEWK1VZwh9ODaNQq4 INePVRxaYSwVXbjNXIAEekBce0Xe2fl9IMbGWdt59odaO86RZp8hgVv3e2NB 5L9t7dq8l3BfeL6aZeGQNysHsupwG52hf3m_Z.83Ff3GFzYPMTBHhwMqVh7V MW77p8oNLMbYRdhVOibsNlGzPooxwIK4xwM410LM5N4sKKYpzOk4CTWVbm4e DLWxdLbzEOhnowYQUsA3dwM7p0S9thbohXQG.jtAB1pwDaQGdibZeBISZ3Q9 hWOHJciV0cn4f4_UZMak9vC.Mf62wtdjz.tLtcCDBVLcIEpJ8nmMrEK31QqZ X8qxCZgIlwnYF3KDz.7gcMv3POuOgWmMcCK5t99JXdM.rqdZbpLIbn.2_7jb wAVuqoNQ4SpUk84XXcDbUJWDZ7AkvLfiignZTyQoSvoqkRPc7swp8PlCiXfo DJA2ZvUmjUbvrdkU.ryrrZ3jglfKEy9tTD4nEALIAq2npuOFL4Qe_IQ-- X-Yahoo-SMTP: BeMCPs2swBABTJ3kAeEiC_hE0mz8jRexLddJfD8pI2j32fOacjBmXg-- Date: Thu, 18 Aug 2016 12:08:23 +0200 From: Ralf Mardorf To: freebsd-questions@freebsd.org Subject: Re: Facing a strange problem Message-ID: <20160818120823.392bde38@archlinux.localdomain> In-Reply-To: <1471506663.1948586.698825249.221DB110@webmail.messagingengine.com> References: <1471506663.1948586.698825249.221DB110@webmail.messagingengine.com> X-Mailer: Claws Mail 3.14.0-2-ge48b739 (GTK+ 2.24.30; x86_64-arch-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 18 Aug 2016 10:11:34 -0000 Don't focus on "moving parts". Some hardware without moving parts have other technical reasons to cause high pitch noise. The most common sources for this kind of noise are CRTs and switched-mode power supplies. Regards, Ralf