On Sun, 23 Sep 2018 20:48:49 +0500 "Alexander V. Makartsev" <avbe...@gmail.com> 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