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Re: [PLUG] spontaneous reboots?
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One more thing that nobody mentioned - Memory. In the cluster we have
some boxes dying for no apparent reason at the beginning, and it was
the memory sticks becoming unseated from the sockets. A nice way of
getting rid of this is cleaning the contacts on the dimms with an
eraser (the ones in the back of a pencil are fine - don't use
anything more abrasive). This usually removes dust and grime that
accumulates there...
However, a second read of Kevin's description also makes me think
about the power supply being shot...
Guillermo
As already stated, it could be a bad power supply or it could be though
not likely, the motherboard. On the ATX design when you hit the power
switch two jumpers are momentarilly shorted sending a signal to the
power supply to turn on. This also allows you to connect your ethernet
card to a jumper on the mother board and activate wake on lan. If you
have wake on lan set in the bios and a faulty connection there may be a
signal sent to the mother board for a reset which would be the same as
hitting the reset switch causing your system to reboot.
The simplest method to check the power supply is to check the output
voltage making sure that the power supply is supplying 5 and 12 volts
where appropriate.
kevin mudrick wrote:
>
> hello,
>
> last week my machine (duron 800 running on an abit kt7-raid board,
> running debian unstable) spontaneously rebooted as i sat at my desk. i
> usually leave my computer running 24/7, and this morning, I woke up to
> find it with no power. hitting the power button on my case wouldn't power
> it up, but if i removed the power cable from the back, then put it back in
> and hit power, the computer started up.
>
> i'm assuming that this could be caused by one of two things:
> 1) a dying power supply
> 2) a spike in the lines in my house.
>
> does anyone have any ideas as to what i can do to figure out the problem?
> i'm assuming it isn't directly linux-related, but in the event that it is,
> are there any logs i should take a peek at?
>
> thanks,
> kevin
>
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
> (kevin mudrick) (kevin@furhurts.com) (www.bleachedwhale.com)
> pgp key available at http://www.bleachedwhale.com/kevinGPG.asc
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
>
> Despair: It's always darkest just before it goes pitch black.
>
> ______________________________________________________________________
> Philadelphia Linux Users Group - http://www.phillylinux.org
> Announcements-http://lists.phillylinux.org/mail/listinfo/plug-announce
> General Discussion - http://lists.phillylinux.org/mail/listinfo/plug
--
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http://www.netaxs.com/~ldc ( o.o )
Phone: 215-535-4037 > ^ <
Jesus saith unto him, I am the way, the truth, and the life:
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______________________________________________________________________
Philadelphia Linux Users Group - http://www.phillylinux.org
Announcements-http://lists.phillylinux.org/mail/listinfo/plug-announce
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+==================-------------- --- -- - - - -
Guillermo Moyna, PhD
Assistant Professor of Chemistry
Department of Chemistry & Biochemistry
University of the Sciences in Philadelphia
600 South 43rd Street
Philadelphia, PA 19104-4495
"The only existing things are atoms and empty space.
All else is mere opinion" - Democritus, 370 B.C.
Office: Grifith Hall 360
Phone: (215) 596-8526
Fax: (215) 596-8543
e-mail: g.moyna@usip.edu
WWW: http://tonga.usip.edu/gmoyna/index.html
http://www.usip.edu/chemistry/faculty/moyna.asp
- - - - -- --- -----------=================+
______________________________________________________________________
Philadelphia Linux Users Group - http://www.phillylinux.org
Announcements-http://lists.phillylinux.org/mail/listinfo/plug-announce
General Discussion - http://lists.phillylinux.org/mail/listinfo/plug
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