[mythtv-users] Backend machine seems to crash every few days

[Gary Buhrmaster]

On Mon, Oct 3, 2016 at 9:13 PM, David Scammell <davescammell at gmail.com> wrote:
> Its a bit extreme but unexpected failures can be due to psu's going
> south

Most of the time when a PSU/brick/adapter
fails "soft" it is due to "failed caps"(*) and the
resulting excessive ripple voltages, which
can also cause the motherboard to fail in
interesting ways as the other components
react poorly to out of range voltages.  In
more than a few cases, once one looked
at the caps in the PSU, or on the MB,
you could see one or more of the caps
had bulged (or leaked).


(*) In most electronic devices the electrolytic
capacitors chemicals age and eventually lose
their ability to perform.  Typically the timeframe
is many years, but heat matters.  There was
also a rash of bad chemicals some time ago,
which caused premature failures.