[Tfug] Pizza-box power problem

Zack Williams zdwzdw at gmail.com
Fri Dec 14 13:08:13 MST 2012


On Fri, Dec 14, 2012 at 11:37 AM, Bexley Hall <bexley401 at yahoo.com> wrote:
>
> I've also encountered "the" bad cap *inside* the power supply
> itself!  So, the MB can look (and *be*!) good -- the problem
> lying in the supply, instead.

+1.  I've seen them in both.  Especially hard to deal with when the
PSU is somewhat unique.

> Ideally, you'd want a voltmeter to look at the actual voltages
> coming from the supply (though I suspect these will be nominal)
> and a 'scope to see the sorts of ripple you're encountering
> (which is a sign of how well/poorly the caps are performing
> their duties).

Best do to this when the machine is connected/running, as the voltages
can be wonky when tested in isolation.

Thanks,
Zack




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