[rescue] Motherboard cleaning..

[Christopher Purdy]

Well, this saga has come to an end...

Re assembled last night.... and the rat bastards won..

I can get the fans to turn on, and a red led on the MB to light - but the
power button doesnt stay lit, no video, and no chime...  I think she's dead
Jim...  I've zapped the pram...no luck...

Bummer... it was a favorite machine of mine..  for no reason other than I
always wanted one.  Its too bad people are asking crazy amounts on CL for
these..

Ohh well - I had some nice upgrades in there that I can re-sell - like the
Copper heatsink and a flashed ATI video card..

- Chris


On Wed, May 22, 2013 at 10:13 AM, Barry Callahan <barryc at rjlsystems.com>wrote:

> If there's still any gunk on the boards that you'd really like off, a
> firm-bristled toothbrush with some sort of rinse, even just under the
> faucet can do wonderful things. or use the alcohol.
>
> Dentists are all about how you should use a soft toothbrush so that's what
> most of the store shelves are full of, but most places carry at least a few
> firm ones
>
> Christopher Purdy <escher.beretta.2112 at gmail.com> wrote:
>
> >Just an update - I pulled the board and video card last night and did
> >the
> >wash... much better, but still some traces...
> >
> >I shook both out until no more water was coming from the ports and then
> >went nuts with the alcohol... then shook most of that out..
> >
> >Both boards are drying since last night... I'll likley bake them at
> >around
> >125 tonight for a while to ensure the drying and give it another day or
> >so...
> >
> >
> >On Thu, May 16, 2013 at 2:30 PM, Mark Brown <sunrescue1 at marknmel.com>
> >wrote:
> >
> >> On 5/16/2013 12:36 PM, Barry Callahan wrote:
> >>
> >>> We actually have a dishwasher in our shop for the express purpose of
> >>> washing PCBs, post assembly. In our case, they're cleaning excess
> >flux and
> >>> removing soldermask paste. (for preventing vias from being soldered
> >when
> >>> using a wave-solderer) They use rubber bands to hold the boards in
> >place so
> >>> they don't get jostled around.
> >>>
> >>> If the board is really bad, you might put it in for a full wash +
> >rinse
> >>> cycle ** DO NOT USE DETERGENT ** and use the high-temp wash & rinse
> >>> settings if your dishwasher is so equipped.
> >>>
> >>> The alcohol bath may not be a bad idea, but it's not something we do
> >>> here. To dry out the boards, we actually stick 'em in an
> >environmental
> >>> chamber and bake 'em at ~60 celsius (140 F) for a couple hours. Your
> >oven's
> >>> "warm" setting would probably work just fine.
> >>>
> >>>
> >>>
> >>>  I used to work with a fella that worked at Honeywell (Keyboards).
> >I
> >> think he was a line manager for the electronics side of the keyboard.
> >>  There was a quality issue with the boards coming from that plant and
> >I
> >> seem to recall the discussion was around cleanliness. (our
> >conversation
> >> about this was over twenty years ago...).   The remediation was to
> >install
> >> a dishwasher on the line - and that was the solution to the problem.
> >I
> >> figured it was for the reasons listed above by Barry.
> >>
> >> And to the OP (Christopher - I think....) , don't be in a hurry to
> >fire
> >> the system back up after the wash cycle.  Put it on the shelf for a
> >month
> >> and forget about it for a while until is is most certainly dry.
> >>
> >> Good luck!  Let us know the results....
> >>
> >> /M
> >>
> >> ______________________________**_________________
> >> rescue list -
> >http://www.sunhelp.org/**mailman/listinfo/rescue<
> http://www.sunhelp.org/mailman/listinfo/rescue>
> >>
> >
> >
> >
> >--
> >Christopher Purdy
> >www.promethean-visions.com
> >_______________________________________________
> >rescue list - http://www.sunhelp.org/mailman/listinfo/rescue
> >
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-- 
Christopher Purdy
www.promethean-visions.com