From: Michael Field - NC Systems Server Engineering - SUN Ireland (Michael.Field at domain Ireland.Sun.COM)
Date: Mon 04 Oct 1999 - 15:59:29 IST
Here's a thought:
Could there be enough power left in the capacitors in the psu to blow your board
(and not in a fun way) even when the box is plugged out?
Should you maybe hit the 'on' button to bleed 'em out or disconnect the power to
the mother board before attacking it with screw-drivers?
-Michael
> To: ilug at domain linux.ie
> Subject: Re: [ILUG] Dead BP6
> Cc: valen at domain tuatha.org
> X-Mailman-Version: 1.0rc2
> List-Id: Irish Linux Users' Group <ilug.linux.ie>
> X-BeenThere: ilug at domain linux.ie
>
> Kate said while whinging about his dead motherboard
>
> >Anyway, I was fitting the heatsinks, and it turns out that Socket370 is a
> >tad bigger than Intels's old Pentiums. But if you ask for a "Celeron"
> >heatsink, you get a pentium one. The clip just needs to be streched a
> >little. And the BP6 has very little room around the CPU, for a big heatsink
> >- it's a crowded board. I wasn't putting enough force into pushing the ckip
> >down, and it slipped out, and touched the board itself. I saw a little
> >spark, and thought "That's odd - it's powered off".
>
> >Turns out that ATX cases provide power to the motherboards, even when they
> >are powered off, to allow for boards with "wakeup-on-dial" functionality.
> >So, though it's completely silent, your ATX board has 12v going around the
> >edge. One touch of metal off that, and "sayonara motherboard". I no longer
> >will leave the power cable in when doing hardware stuff on a machine.
>
> Jeez - isn't life a bitch. I would strongly recommend leaving a power cable in
> a box for grounding purposes, but if you're inclined to be as clumsy as Kate
:-)
> disconnect the ATX power plug from the motherboard before working on it (and
maybe
> you should tape it up away from the board too :-)
>
>
> Kindest regards,
>
>
> Niall O Broin
>
> UNIX Network Administrator nobroin at domain esoc.esa.de
> Ground Systems Engineering Department Ph./Fax +49 6151 90 3619/2179
> European Space Operations Centre, Darmstadt, Germany
>
>
>
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