[TriLUG] More hardware woes

[Jim Ray]

last time i had the problem, i yanked one out of another computer.  it's
a fairly quick go-go no test.  it take me less time than looking up the
pin out on the power supply and using my volt-ohm meter.

good luck,

jim

> -----Original Message-----
> From: Andrew Perrin [mailto:clists at perrin.socsci.unc.edu]
> Sent: Thursday, August 14, 2003 3:54 PM
> To: Triangle Linux Users Group discussion list
> Subject: RE: [TriLUG] More hardware woes
> 
> 
> Oh don't worry! I certainly plan to replace the MB, since it's under
> warranty anyway. The question is whether the power supply could be the
> culprit, given the timing of the failure. I've asked intrex, 
> and they're
> happy to test out the PS for me before I set it loose on the new MB.
> 
> ap
> 
> ----------------------------------------------------------------------
> Andrew J Perrin - http://www.unc.edu/~aperrin
> Assistant Professor of Sociology, U of North Carolina, Chapel Hill
> clists at perrin.socsci.unc.edu * andrew_perrin (at) unc.edu
> 
> 
> On Thu, 14 Aug 2003, Jim Ray wrote:
> 
> > don't screw around with board level work on a motherboard.  all that
> > stuff is surface mount ultra dinky 
> need-a-microscope-to-see-it wizardry.
> > exchange motherboards, power supplies or whatever until it works.
> >
> > hth,
> >
> > /jim
> >
> > > -----Original Message-----
> > > From: Michael Thompson [mailto:thompson at easternrad.com]
> > > Sent: Thursday, August 14, 2003 3:04 PM
> > > To: Triangle Linux Users Group discussion list
> > > Subject: Re: [TriLUG] More hardware woes
> > >
> > >
> > > Is it a transistor or maybe a small power regulator that
> > > melted?  Either
> > > way, I'd be weary of the new power supply.  It might be 
> defective.  I
> > > haven't seen this very often, but it does happen once in 
> a while.  ;)
> > > I'm not sure how to test the power supply out of circuit, 
> IIRC those
> > > switching power supplies need a load to operate, so just
> > > testing with a
> > > multimeter will not give you accurate readings.  Maybe 
> someone else on
> > > the list knows a way to do this.
> > >
> > > I would also check to make sure that there isn't anything
> > > that can short
> > > any of the components on the board.
> > >
> > > Then again, whatever damaged the first power supply may have also
> > > damaged, shorted or weakened components on your 
> motherboard, causing
> > > additional damage after applying a fresh new power source.
> > >
> > > Just a few ideas,
> > >
> > > --mike  :)
> > >
> > > > On Thu, Aug 14, 2003 at 11:02:29AM -0400, Andrew Perrin wrote:
> > > > > OK - so I put in the new power supply, along with a new
> > > fan I had been
> > > > > waiting to install, and turned it on. Everything came up
> > > beautifully - the
> > > > > system started doing an fsck because it had been poorly
> > > brought down when
> > > > > the power supply died.
> > > > >
> > > > > Suddenly... nothing. Screen died, fans and drives stayed
> > > on, no keyboard
> > > > > LED's.  I smell burning plastic.  Yank the power cable,
> > > open up the case,
> > > > > and now I can turn it on to the point of getting fans and
> > > drives to spin
> > > > > up, and power LED's on, but no video and no system beeps.
> > >  Furthermore,
> > > > > there's a transistor that's visibly melted on the
> > > motherboard. (Yikes!)
> > > > >
> > > > > The MB is under warranty, so I'm going to get it
> > > replaced. My question for
> > > > > y'all is: can you think of something I might have done to
> > > cause this? I'd
> > > > > rather not plop in the new MB, just to have it melt again.
> > > > >
> > > > > The MB was installed in November, it's a Gigabyte GA-7VAX.
> > > > >
> > > > > ap
> > > > >
> > >
> > >
> >
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