[D-community-offtopic] Building computer - power supplies

[staticsafe]

On 9/27/2013 23:13, Ralf Mardorf wrote:
> On Sat, 2013-09-28 at 08:25 +0900, Joel Rees wrote:
>> But the upshot is that capacitors are exposed to higher
>> voltages and/or effective power than they can handle, and get burned,
>> and it is a manufacturing problem, and sometimes an engineering
>> problem.
>
> And sometimes vendors knowingly use undersized capacitors, so that they
> will get burned a while after the period of warranty ended. This is a
> known issue by German consumer centers. I experienced it for the PSU of
> a Behringer mixing console. I was an engineer and can repair it myself,
> or assumed I shouldn't have the needed equipment at home, a friend still
> is working as engineer for a company and can help me. For this
> particular PSU it was easier to do by hot air soldering. Sure, without
> hot air the soldering isn't impossible, but already hard to do for
> experienced engineers and perhaps impossible for averaged people.
> Vendors design things to get broken after warranty period ended and they
> also try to make things irreparable.
>
>

Yay for planned obsolescence [0]!

[0] - http://en.wikipedia.org/wiki/Planned_obsolescence

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staticsafe
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