Re: OT: hardware, IBM 3650 M2 won't power on

[Pete Travis <lists@xxxxxxxxxxxxxx>]

On Feb 22, 2017 4:27 PM, <m.roth@xxxxxxxxx> wrote:

Styma, Robert (Nokia - US) wrote:
>
> Just for grins, pull off the cover and look at the electrolytic capacitors
> on the motherboard.
> Look for ones with the tops pushed up instead of being flat.  This can
> cause all sorts of odd behavior.  Often the machine with a blown capacitor
> will continue to run till it is powered off.    Mostly I see this on Dell
> machines but have seen it on other machines as well.  They are pretty easy
> to unsolder and replace.  There are lots of pictures of failed
> electrolytic capacitors on the web. You can get decent capacitors cheap on
> Amazon.  I understand the problem when the powers that be will not allow
> you to spend money.  Now I work in a lab and have nice soldering equipment
> available  and can get away with a lot more than a production environment.
>  Maybe if your boss sees you taking a soldering iron to the machine he
> will let you buy a new machine. :-)
>
Thanks, that's a thought. The cover's already off.... But forget that, no
soldering here.

       mark



I'd try a power drain next. Unplug it, short the prongs on the plug
together, hold the power button down, wait a bit.  Maybe try powering it on
with one PSU alone then the other, if that's an option.

--Pete
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