🚀 go-pugleaf

"do_not_spam_me" <do_not_spam_me@my-deja.com> wrote in message
news:101710fa.0404231525.59d83be3@posting.google.com...
> relloman@beasty.com (rello) wrote in message
news:<4088f437.47047881@news-server>...
>
> > got a newish dell dimension 4500 in that was knocked out by a
> > lightning strike......i got the job of disposing of the box :)
> >
> > the mobo is definitely dead but all the majors, hd, both cd drives,
> > floppy ram and video board are ok...havent tested the modem and s/card
> > as yet but s/card prolly ok......modem i expect to be fried .....
> >
> > i could sell it at a very low price [with a statement as to its
> > origin], use it as a testing station or maybe hire it out as a fill in
> > for people who cant do without a computer........
> >
> > what would opinion be on putting it back into service for the above
> > applications.....
>
> I'd carefully look over the circuit boards for burn marks or cracked
> parts (they can rupture when hit with high voltage), but some disk
> drives, like Western Digitals, have the parts mounted on the inside,
> preventing their examination without board removal.  I'd be reluctant
> to trust a drive having any visible damage, and I'd make backups in
> any case.
>
> If the lightning damaged the motherboard through the modem, then I
> doubt it's repairable, but if the zap came in through the power side
> there's a good chance that it stopped at the bypass filter capacitors,
> fuses (look like resistors),  IC protectors (fancy fuses), or even
> inside the power supply.

This sounds like classic Lightning damage - the Lightning comes in via the
modem and heads for Mains Earth via the Mother Board and most likely the
chassis.
It is in fact unlikely that the power supply has copped much abuse however
the modem is very very unlikely to have survived and especially with the joy
of an internal modem that just makes absolutely certain that the strike
visists the mobo on its way to earth.
The soundcard may or may not have survived depending on what it was plugged
into and if it provided an additional path to earth or not.
The HDD is probably o.k I have repaired a number of similairly damaged PCs
and after replacing the modem and Mother Board they are usually fine after
that.

Regards
Richard Freeman