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Unnatural Film on Back of Motherboard

Forum Motherboards & Memory : General Motherboard - Unnatural Film on Back of Motherboard

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check   05-30-2009 at 10:31:32 PM

http://img32.imageshack.us/img32/8649/img0775j.th.jpg

Notice the film that follows different parts of the motherboard on each side?

What do you think it is from?


Message edited by check on 05-30-2009 at 10:32:58 PM
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dokk2   05-30-2009 at 11:30:18 PM
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Looks like crap left over from the wave solder machine,,maybe,might try rubbing alcohol ,or lighter fluid.As long as the board works no worry..:)

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Desertlax   05-31-2009 at 05:13:19 AM
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It's Ectoplasm......Who ya gonna call?

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vladtepes   05-31-2009 at 06:43:58 AM
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Looks like water condensation under the motherboard is beggining to rust it

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croc   05-31-2009 at 07:55:47 AM
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+1 for dokk2. Looks very like residual solderwave flux. Should be water soluable, but if you have no issues why worry?

What MB MFG is that from, BTW. I want to stay away from any MFG that can't properly run a solderwave...

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check   06-07-2009 at 06:44:20 PM
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vladtepes wrote :

Looks like water condensation under the motherboard is beggining to rust it

I agree vladtepes. There wasn't any residue when the board was new. I tend to leave my windows open throughout Summer. Thanks.

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CoachB   06-08-2009 at 03:04:02 PM
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Thoughts on the water/rust answer.
(1) Moisture would condense on the mobo IF it were significantly cooler than the ambient temperatures;
(2) Motherboards have very little material in them that will rust
(3) Even marginal case ventilation would prevent moisture buildup.
Is this system cooled by dry ice or other below ambient solution.

What dokk2 is saying makes sense to me. IF there is residual solderwave flux, the flux will tend to absord moisture and form a chalky residue. It probably wouldn't be visible when the board is new. Also, isn't flux slightly acidic (corrosive).

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