From owner-freebsd-hackers Mon Nov 23 16:39:55 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id QAA10894 for freebsd-hackers-outgoing; Mon, 23 Nov 1998 16:39:55 -0800 (PST) (envelope-from owner-freebsd-hackers@FreeBSD.ORG) Received: from irc.pcnet.ro (irc.pcnet.ro [193.230.186.133]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id QAA10879 for ; Mon, 23 Nov 1998 16:39:47 -0800 (PST) (envelope-from fnicoles@pcnet.pcnet.ro) Received: from uucp1.pcnet.ro (uucp1.pcnet.ro [193.230.188.6]) by irc.pcnet.ro (8.9.1/8.8.5) with ESMTP id DAA30873; Tue, 24 Nov 1998 03:51:14 +0200 Received: (from uucp@localhost) by uucp1.pcnet.ro (8.8.5/8.8.5) with UUCP id CAA02419; Tue, 24 Nov 1998 02:35:19 +0200 Received: (from nick@localhost) by nick.ro (8.8.8/8.8.8) id CAA01113; Tue, 24 Nov 1998 02:28:24 +0200 (EET) (envelope-from nick) From: Florin Nicolescu Message-Id: <199811240028.CAA01113@nick.ro> Subject: Re: sever ide hdd crash In-Reply-To: <19981123162257.A8896@wolf.com> from Dan Mahoney at "Nov 23, 98 04:22:57 pm" To: dan@wolf.com (Dan Mahoney) Date: Tue, 24 Nov 1998 02:28:24 +0200 (EET) Cc: freebsd-hackers@FreeBSD.ORG (FreeBSD-hackers) X-OS: FreeBSD-2.2.7-RELEASE X-Mailer: ELM [version 2.4ME+ PL40 (25)] MIME-Version: 1.0 Content-Type: application/pgp; format=text; x-action=sign Content-Transfer-Encoding: 7bit Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG -----BEGIN PGP SIGNED MESSAGE----- > I normally hesitate to recommend such low-level steps, > but my next recommendation would be to get your hands > on a good digital voltmeter and look at the output of > the PC power supply. If you have an unused disk-drive > power connector, monitor the voltages there while the > machine is running - preferably, while it is performing > the same type of operation that has been leading up to > system failures. > > Look at the DC voltage levels, and look also at any AC > component that might be present. If you have tried > swapping out everything except the case and the CPU, > then that might be the problem - since the power > supply stays with the case. > > BUT BE CAREFUL! Doing anything with the system running > is risky, and messing around with the power connectors > while power is applied makes it very easy to toast your > system if you jumper the wrong points together. > What is the accepted variance of the voltage (in mv)? I think I will take the chance as soon as I get one VU meter. Thanks. Florin - -- - ------------------------------------------------------------------ | Florin-Nicolae Nicolescu | | University of Bucharest, Faculty of Mathematics | | Bucharest,Romania | - ------------------------------------------------------------------ | Friends don't let friends use Windows. | | Double your hard drive space instantly! Delete Windows! | - ------------------------------------------------------------------ -----BEGIN PGP SIGNATURE----- Version: 2.6.3ia Charset: noconv iQCVAwUBNln9mG95n9Jm9dehAQEKWAQAoP8kjMyGOwPhJ6zc66G35q4l1bkshpbH f33nVr+whnNwHbvwQYFdZZxfotRkuJB0siockQ26aD0gcWexhAApGd3rLW/jpd/C IQHp+1isSRLAuqCdWUoyaEIjVGbDuHkBPugL8sqXyO89UCbhK8/KFdwQ31lUsY5h pndEz2TxlQo= =N+SG -----END PGP SIGNATURE----- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message