Headers problems

ANIRUDH VIJ ee05b077 at smail.iitm.ac.in
Sat Jun 16 19:06:30 PDT 2007


I also don't have experience with this stuff.Tijnema may know more because he
has actual experience with it.They dont really teach how to tinker with
motherboards in courses :)
But if you have access to a voltmeter ,you could measure the voltage across
the terminals of the capacitor.Its getting hot may also have something to do
with the solder you may have used.Hobby solder has higher resistance than
industrial stuff.In a circuit operating at MHz ,this small effect could be
significant.Again,capacitors in my motherboard get hot anyway,so is this
really getting hotter than surrounding ones?
Also a failing capacitor may or may not destroy your motherboard.It entirely
depends on which circuit it is a part of.I am sorry that i cant be more
specific than this.
Hope you salvage your motherboard.
On Sun, 17 Jun 2007 00:22:11 +0200, Tijnema wrote
> On 6/17/07, Wit <WitlessIdiot at triad.rr.com> wrote:
> > ANIRUDH VIJ wrote:
> > > """"""""
> > > Unless you know the circuit type (LC, RC, ...), its expected input and
> > > output, you are risking havoc by changing the value of *any* of the
> > > components in the circuit. IIRC, by changing the the capacitor to a
> > > higher voltage rating, you have altered (possibly) at least two things
> > > (assuming the circuit is more than a simple power conditioning circuit)
> > > that may be critical.
> > > """""
> > > The critical thing here is "value of component",not the voltage rating.I
completely agree that
> > > changing the capacitors's value from 2200uf to something else may have
caused havoc,but
> > > increasiing its voltage rating can only be a good thing.It only means
that the chances of a capacitor
> > > exploding are lesser :)
> > > If i correctly understood the previous post,the voltage rating increased
while the value remained the
> > > same,so the capacitor itself should not be the source of the problem.
> > >
> > <snip>
> >
> > Thanks for that Anirudh. I hope it saves him some unneeded work. Based
> > on your sig below, might you have some other useful suggestions for him?
> > As I said, I really don't know a lot about this stuff.
> >
> 
> Yes, saves some time.. :) But I still think I'm gonna replace it,
> doesn't seem too good that it's that hot ...Do you have any
> explanation for it anirudh?
> 
> Also, I heard that it doesn't matter if one capacitor fails on a
> motherboard, because there are enough to keep the system running. Is
> that true?
> 
> Tijnema
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