From owner-freebsd-questions@freebsd.org Sat Dec 17 17:19:21 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 EFCAFC8586D for ; Sat, 17 Dec 2016 17:19:21 +0000 (UTC) (envelope-from dalescott@shaw.ca) Received: from smtp-out-no.shaw.ca (smtp-out-no.shaw.ca [64.59.134.9]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "Client", Issuer "CA" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id C4361D7F for ; Sat, 17 Dec 2016 17:19:21 +0000 (UTC) (envelope-from dalescott@shaw.ca) Received: from cds082.dcs.int.inet ([10.0.153.93]) by shaw.ca with SMTP id IIdhcP7X6cWiHIIdicggEF; Sat, 17 Dec 2016 10:19:19 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=shaw.ca; s=s20150330; t=1481995159; bh=ULxd1w9RZ9qSq/hBkEhc53kK3TwgXfz3pS3gDG/ZEXg=; h=Subject:From:In-Reply-To:Date:Cc:References:To; b=JpltQwVHeKyYMKOEkx57wDoyyBSSQzm+g/Me1uJiIESMoRNe3VXu3y8HL04qU64yK eJADzSefgMRMMBDPUMrry4rMtLOYSvTHWKim09X+8H5XCn4D0q4oirayEe1GC758Ui HFGwxmOd+EuxTnVLWA0VofcjqCMxaRKiXZJR7+kaYrM6un7oAD5hK0wPEtFgaZBJXD GshEtwhHh9uqJJHz/y0YRcpX8RT9ApryzEbwSVsIrx0TofPn4tgVu/DS7nYRDYBR9P wof+Ya4WdIxYYIRlh77EpFytRPI0ZNlhrcLWtnmxo1/GOHUjuSTzqxEofUiqM9+OzC wJ6ATC8l/S2Gw== X-Authority-Analysis: v=2.2 cv=JLBLi4Cb c=1 sm=1 tr=0 a=L9a2ioI+WyVsvPT5slEF4Q==:117 a=FKkrIqjQGGEA:10 a=kj9zAlcOel0A:10 a=6I5d2MoRAAAA:8 a=D2FExbBVMAJcdt8VcJYA:9 a=CjuIK1q_8ugA:10 a=IjZwj45LgO3ly-622nXo:22 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Subject: Re: freebsd-questions Digest, Vol 654, Issue 6 From: Dale Scott In-Reply-To: Date: Sat, 17 Dec 2016 10:19:17 -0700 (MST) Cc: Tim Daneliuk , freebsd-questions@freebsd.org Message-Id: References: <23fa6b26-3e7c-cbd3-e22f-bbf45dcd4958@tundraware.com> To: Dave B X-Mailer: Zimbra 7.2.7_GA_2942 (MobileSync - Apple-iPad4C4/1402.150) X-CMAE-Envelope: MS4wfKINRdBkQlPLJFeMREJxCVyV3ZYF0L51MtnB65bKoqSKuHlOwi7SQSYRoNyWiwc1Hbwl2SpGRQQxVO0l2H0QtgwQBHRuOBhUFPUFTJVuAkwM8iSYHLpw DjcOpX4SolWY1SDQK6Pd5/4GDpRD3/aik4YL7+OvbK8kEfSR3faotWpCAyKlvC93v4DmHVT4vsQhk6JN92olhBVVdb1xlXpMSG6Ne37BwxQe8baTKtX8o97/ 8Y3gi1os4fvTUU30eBCwfql+aKWHvdEwg5/V1qxQlUO4Y7OkwNcD2kAh03BGLBWq X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 17 Dec 2016 17:19:22 -0000 Blow canned air into a hot paper shredder and you'll get some real excitemen= t! (Kaboom!). That's when I read the can and learned it's not really air.=20= > On Dec 17, 2016, at 5:07 AM, Dave B via freebsd-questions wrote: >=20 >> On 16/12/16 14:21, Tim Daneliuk wrote: >>> On 12/16/2016 08:14 AM, Dave B via freebsd-questions wrote: >>> Check the health of the cooling systems in your notebook. >> This. Like I most of us, I am the "IT Repair Department" for friends and >> family. You have no idea how many computers I have "fixed" simply by >> blowing the dust out of the cooling path and off the motherboards. >> Mac laptops, especially, seem to be built to very tight cooling tolerance= s. >>=20 >> Recommend taking the unit apart and then going outside to blow the dust >> out of the guts of thing. Never use a vacuum cleaner to do this because -= >> unless specifically designed for electronics - vacuum cleaners will gener= ate >> a lot of static electricity which is deadly to solid state parts. >>=20 >>=20 > Even using an air-duster-in-a-tin can create static charges. (Any air > movement over a surface can.) But in practice, it's not a problem is > used sensibly, within a largely complete PC, or on a laptop exposed but > not dismantled main board. (individual assemblies, RAM sticks and > such, then the static can do damage, but much less so, when they are > installed in a socket.) >=20 > More a problem, is that it is sometimes possible to blow dust into the > internals of fan motors and cause problems, but even that is rare. Try > not to let fan's spin too fast either. Some can generate quite a bit of > voltage, and that could do something as it finds it's way back into the > machine. >=20 > I'm always amazed at the amount of otherwise good hardware that is > chucked away, just for the want of a bit of maintenance. UPS's are a > prime example, a good clean out and new batteries, and often they are as > good as new. >=20 > Seasons Greetings etc. >=20 > Dave B. >=20 > _______________________________________________ > freebsd-questions@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.or= g"