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RE: [PLUG] spontaneous reboots?
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I second the thought that memory may be the problem. I had the same thing
happen to me on an ASUS mobo with a Athlon T-Bird CPU. One night it just
rebooted spontaneously, no warning. It booted up and then did it again.
After the second time it would not reboot but hung on POST. The key
indicator were the mobo/bios error beeps...a continuous single beep
indicating a memory problem. After removing and switch my two memory sticks
I determined that one had gone bad. It would boot with that stick in the
second slot and the good one in the first slot, but the POST memory test
indicated that that stick was bad (had to turn off the Quick Boot option in
BIOS in order to run the extensive memory testing on bootup). I returned
the bad memory for replacement and all has been fine since.
John
> -----Original Message-----
> From: Guillermo Moyna [mailto:g.moyna@usip.edu]
> Sent: Tuesday, January 22, 2002 8:21 AM
> To: plug@lists.phillylinux.org
> Subject: Re: [PLUG] spontaneous reboots?
>
>
> 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
> >
> >--
> >Rev. LeRoy D. Cressy mailto:lcressy@telocity.com /\_/\
> > http://www.netaxs.com/~ldc ( o.o )
> > Phone: 215-535-4037 > ^ <
> >
> >Jesus saith unto him, I am the way, the truth, and the life:
> >no man cometh unto the Father, but by me. (John 14:6)
> >
> >
> >_____________________________________________________________
> _________
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> http://www.phillylinux.org
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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
______________________________________________________________________
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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