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

[Hika van den Hoven]

Hoi Gary,

Tuesday, October 4, 2016, 1:03:33 AM, you wrote:

> 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.
> _______________________________________________

I was lucky the one time a PSU failed on me as the fan froze and the
machine shut down on overheating protection. So no further damage. ;-)

Tot mails,
  Hika                            mailto:hikavdh at gmail.com

"Zonder hoop kun je niet leven
Zonder leven is er geen hoop
Het eeuwige dilemma
Zeker als je hoop moet vernietigen om te kunnen overleven!"

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