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Re: Debugging mysterious freeze / crash




On Sun, 23 Sep 2018 20:48:49 +0500
"Alexander V. Makartsev" <avbetev@xxxxxxxxx> wrote:

> On 23.09.2018 18:00, Celejar wrote:
> 
> > One of the reasons I buy Thinkpad T (or W) series machines is to not
> > have to worry about such things, but I understand that there are no
> > guarantees ;)
> >
> Some people strongly believe there are conspiracy among hardware
> manufacturers, such as planned failure. I'm one of them tinfoil hats,
> because I've seen too many "too convenient" failures to believe they
> were random.
> We now live in the age of Pb-less solder and BGA chips. This is a bad
> thing because Tin without Pb becomes brittle with time. Also Tin could
> grow microscopic hair-like structures that could short-circuit
> neighboring solder joints. This is why service people have to resort to
> re-flow and re-ball techniques on still working BGA chipsets,
> essentially adding Pb and resolder ICs back into same motherboard or
> replacing faulty chips if they are dead.
> I've seen flux that becomes conductive after a couple of years of device
> usage. I've seen rubber-like substance with same characteristics that
> holds components in place inside PSUs, you just stick 2 probes of your
> MMT into and it shows resistance.
> I can go on infinitely on this topic, so I better stop.

:) Thanks for the perspective - I know much too little about hardware
to form an intelligent opinion.

Celejar