Skip site navigation (1)Skip section navigation (2)
Date:      Tue, 24 Nov 1998 02:28:24 +0200 (EET)
From:      Florin Nicolescu <fnicoles@pcnet.pcnet.ro>
To:        dan@wolf.com (Dan Mahoney)
Cc:        freebsd-hackers@FreeBSD.ORG (FreeBSD-hackers)
Subject:   Re: sever ide hdd crash
Message-ID:  <199811240028.CAA01113@nick.ro>
In-Reply-To: <19981123162257.A8896@wolf.com> from Dan Mahoney at "Nov 23, 98 04:22:57 pm"

next in thread | previous in thread | raw e-mail | index | archive | help
-----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 <fnicoles@pcnet.pcnet.ro>       |
|        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



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199811240028.CAA01113>