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[HWBOT]A-Style: Waterproof by Conformal Coating Live Demo - Page 6

post #51 of 60
Quote:
Originally Posted by Alanim View Post

Do the Jumpers on the motherboard have the power to short out in water?

As in can the electricity jump that distance through water, from the power output that those pins provide?

Motherboard header pins are pulled either up or down when not shorted, to avoid parasitic currents and electrostatic current from producing false 0s or false 1s (imagine you touch the computer case and the CLRCMOS pin falsely reads it's shorted!). So no, water won't do a thing for the current flowing through them.
   
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post #52 of 60
Quote:
Originally Posted by Artikbot View Post

Motherboard header pins are pulled either up or down when not shorted, to avoid parasitic currents and electrostatic current from producing false 0s or false 1s (imagine you touch the computer case and the CLRCMOS pin falsely reads it's shorted!). So no, water won't do a thing for the current flowing through them.

If I'm understanding it correctly, you're saying it would be safe then?

So then, wouldn't most of the concerns that people are having with the motherboard still shorting out from those jumpers be untrue?

Hopefully the coating quality on these motherboards is very consistent, and well done.
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post #53 of 60
Quote:
Originally Posted by Artikbot View Post

Quote:
Originally Posted by Alanim View Post

Do the Jumpers on the motherboard have the power to short out in water?

As in can the electricity jump that distance through water, from the power output that those pins provide?

Motherboard header pins are pulled either up or down when not shorted, to avoid parasitic currents and electrostatic current from producing false 0s or false 1s (imagine you touch the computer case and the CLRCMOS pin falsely reads it's shorted!). So no, water won't do a thing for the current flowing through them.

thats not true, the pins are always there, look at ANY connecotr on your mobo push and pull all you want, if it does move its broken lol.
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post #54 of 60
Quote:
Originally Posted by USFORCES View Post

Rain-X biggrin.gif

Ultra Ever Dry. tongue.gif
    
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post #55 of 60
I don't think 5 volts(the jumpers/pins are all 5 volts or under as I recall?) can jump the full centimeter between the pins in water.

I guess a good test would be to see if you can turn a computer on by shorting the power switch connector with a diamond(apparently a slightly better insulator then water). If not then I doubt then I assume it'd be safe.

The fan headers might be a bit more of a problem since they're 12 volts(as I recall)?
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post #56 of 60
Just add some common sense and designer pin avoidance water...
Quote:
PS: The pins need to stay conductive therefore they are not covered by Conformal Coating. The water in this video is designed to avoid the pins which still risks of short circuit.

as explained in the postscript of their news release. tongue.gif

The Ultimate Armor for Protecting Your 8 Series Motherboards
A-Style: Conformal Coating
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post #57 of 60
Lets face it - waterproofing parts does help, but it will always have a weak spot, the parts that aren't.

So it will be the nature of the leak that will decide - big time , small time , where from and what biggrin.gif
post #58 of 60
I saw 2 companies in particular that do this in different ways. One looked very good and could be used for consumer part waterproofing. It does work better in manufacturing stage, but if you can strip the device down to components, it can water proof anything. The demo included tissues and the owners own S4 with back off. I was impressed. Would you all pay to have a guy waterproof anything you own? Ship it to me in parts, each part is done, and I ship em back to you? I see potential in this.

Video in a bit. It is being edited now.
 
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post #59 of 60
Quote:
Originally Posted by Kip69 View Post

I saw 2 companies in particular that do this in different ways. One looked very good and could be used for consumer part waterproofing. It does work better in manufacturing stage, but if you can strip the device down to components, it can water proof anything. The demo included tissues and the owners own S4 with back off. I was impressed. Would you all pay to have a guy waterproof anything you own? Ship it to me in parts, each part is done, and I ship em back to you? I see potential in this.

Video in a bit. It is being edited now.

They already have such services. I believe it runs like $60, you ship them your phone and they waterproof it and send it back. Im sure they will become much popular when they get the price down. However since most of the cost is due to owning the machinery, it would be best if manufacturers sold all devices waterproof, or offered a model for $30 more with waterproofing. I dont know if its really needed for most people though. Your phone can handle rain, assuming you dont stand in the rain for hours using it. Most can handle a dip in a tank of water for a few minutes, assuming there wasnt previous damage. So unless youre a lifeguard or something, I dont know if its that great.
post #60 of 60
We've used conformal coating on all sorts of PCB assemblies, motor controllers etc for years. Our products tend to go into unpressurized, unheated compartments in aircraft so they have to function at extremely high and low temperatures and be able to handle high humidity, salt spray etc. As it has been stated already you can't coat the pins on any connectors etc but this would help protect all the SMDs on the boards.
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