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echo: tech
to: SCOTT JONES
from: Roy J. Tellason
date: 2003-11-24 12:06:00
subject: what do I have here?

SCOTT JONES wrote in a message to ROY J. TELLASON:

-=> ROY J. TELLASON wrote to SCOTT JONES <=-

 SJ> As always, YMMV, but the only times I've seen any problems with ATX
 SJ> power supplies were in hostile environments that probably have
 SJ> killed an AT supply just as easily.  Meanwhile, this machine is on
 SJ> its third AT power supply in two years.

 RJT> I guess I'll find out when I get there.  

 SJ> Yep.  That's what makes it fun.

Heh.

 SJ> 
 SJ> including a year-old Soyo mb. The Soyo has *11* bad caps. It'll be
 SJ> a whole lot easier and cheaper to buy a new board than to replace
 SJ> those, unless anyone knows where I can get 2200uF 10V high-temp
 SJ> caps for cheap.

 RJT> On looking closer at some of this stuff I'm amazed at how small some of
 RJT> them are getting for the values that are in there.  But then,  that's
 RJT> been happening for as long as I've been into this stuff,  several
 RJT> decades now.

 SJ> Yeah.  I was looking at the website for a company that sells 
 SJ> obsolete and surplus parts, along with new stuff.  Pretty 
 SJ> interesting stuff.  A lot of military, NASA and telecom surplus
 SJ> (www.surplussales.com).  Since they are located only a couple of
 SJ> miles from me, I might have to go down just to browse.

I used to go into stores like that,  just to browse,  in NYC.  The
unfortunate thing about a lot of this stuff is that it was chunks of whole
"systems" of one sort or another,  and that unless you had the
rest of that system you weren't going to find too much of it terribly
useful.  Interesting stuff anyhow,  though.

 RJT> How are you testing those caps?  I see lots of references to ESR
 RJT> meters,  but that's not something I'm likely to want to invest in
 RJT> anytime soon.

 SJ> I didn't need to test them.  With the ones on the GigaByte board,
 SJ> they were hot to the touch and the tops were bulging.  The ones on
 SJ> the Soyo have bulging tops, and the electrolyte has been leaking
 SJ> onto the board. 

Oh.  I saw some mention of that in other posts in here.  I'm not seeing
anything like that.  Though in the case of the one board,  one of the
heatsinks for the linear regulators got *real* hot,  almost burned myself
if I'd touched it the one time.  That's not the Via board I'm into messing
with, though.

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