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Topic: Spraypainted "watertight" motherboard runs underwater
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KnitWitPerson was signed in when posted  1
03-31-2003 12:13 PM ET (US)
Of course, the coolest(heh) case-mod ever would be if they sealed all the bits into a block of ice. Someone get on top of that huh?
JohnRPerson was signed in when posted  2
03-31-2003 01:27 PM ET (US)
Haven't I seen someone with a submerged operating television set on some infomercial? If the water was completely distilled (as I seem to recall being the case on the program), wouldn't the spraypainting be unnecessary for submersion?
FinnianPerson was signed in when posted  3
03-31-2003 01:52 PM ET (US)
Notice how the power supply is precariously balanced on the edge of the tub. I can picture it, the PS gets jostled, the lights go out, Chuck lights up.........
CG WelchPerson was signed in when posted  4
03-31-2003 07:50 PM ET (US)
Finnian: I just stumbled on this. I don't have the talent to even think of doing such a thing.
Eli the BeardedPerson was signed in when posted  5
03-31-2003 08:38 PM ET (US)
If the water is completely distilled, couldn't it still
corrode parts of the motherboard and introduce ions into
the water?

What works for a short while might not work long term.
NobodyPerson was signed in when posted  6
03-31-2003 09:59 PM ET (US)
I saw a guy dip his entire casing in mineral spirits once, then cool the liquid. Solves the conduction problem, but in mass produced PC's I bet water and spraypaint would be much cheaper.
Chris SmithPerson was signed in when posted  7
04-01-2003 10:25 AM ET (US)
Pure inert water WITH NO DISSOLVED GASES will not corrode the parts.

You have to used deionized (distilled) water to remove impurities, which would increase the conductivity of the water. Heating of the water will force out dissolved gases, although industrial processing will use specialized filtering technologies to accomplish the same thing.

At that point, plain water between freezing and boiling is effectively inert.
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