On Mon, 11 Feb 2019 13:32:07 -0500, Ralph Mowery
wrote:

In article ,
says...

On 2/11/19 9:43 AM, Ralph Mowery wrote:
Remember the computer boards that had capacitors
on them that only lasted about a year ? A friend and I had to send back
several boards to one of the big computer board and part suppliers , but
that was about 20 yars ago.

That wasn't because of modern capacitors.
That was because the bean counters at Dell went with
cheap counterfeit caps that were ****.




The origional post was about which brands were the best.

That is why I said not all modern capacitors would last. I am sure
there are lots of crap China brands of capacitors. I probably bought
some a few months back, but they go in my hobby electronics.

The boards I sent back were not Dell. They were some boards from a
company that sold computer boards and parts that I put together a
computer. The boards were high rated before the capacitor problem. I
think lots of companies had the cpacitor problem from that particular
capacitor company.

One of the main things is that the switching supplies or high
temperature are the main killers of the capacitors.

Any of the good brand capacitors should last longer than most of us will
be around.

Yes, the original question was which caps are BEST, but much of my
concern is based on the failed motherboards, which only lasted a year or
so.

Knowing the name used on these really bad junk caps would be useful to
know too. I'm pretty fussy when I buy caps and some other components,
but I do sometimes buy "grab bags" (like on Craigslist) if the price is
right, and I know some parts will be usable. But knowing the name used
on those conterfeit caps, or any others known to fail is good to know.
If the caps are known bad, I am not going to use them for anything other
than a breadboard test design, (or not at all).

I'm curious what brand of motherboards were the bad ones too....

It's just good to know things like this. Just like every brand of car
seems to have certain common failure or breakdown problems, and knowing
what to check and watch for, is helpful.