Scratch on motherboard.

[resolver]

Hi all. I want to ask if i need to do something in this situation. Thank you.
Images below with different light sources and intensity:

 

[RealBeast]

If it is working okay, I would disconnect the power cable to the PC and then just put some fingernail polish over the scratch and let it dry before powering it again. This will prevent it from shorting if anything touches the area.

 

[resolver]

Have this one. Maybe can use it to cover if need? This liquid for modeling:

But do not know if this liquid will support high temperature or will not short circuit.

 

[resolver]

If it is working okay, I would disconnect the power cable to the PC and then just put some fingernail polish over the scratch and let it dry before powering it again. This will prevent it from shorting if anything touches the area.

I wrote from the machine with this MB. But do not sure if scratch didn't show up the copper.

 

[techgeek]

You've just scratched the solder mask off of the trace. That trace is likely ground since it's so wide. You haven't scraped through the trace itself so you're OK. You can take the suggestion and put a small smear of clear fingernail polish, but you can just leave it if you want. No harm will come from just ignoring it. The problem with anything like fingernail polish is that if you're not careful and it drips into a connector or on a contact, etc, then you can have trouble.

 

[carlo_bigtunes]

it just little scracth there, no problem
don't worry if copper not seeing

 

[resolver]

it just little scracth there, no problem
don't worry if copper not seeing

I just edited my last message. I'm not sure . And can i use the liquid i showed up (my second message)?
Thank you.

 

[RealBeast]

No idea if that stuff will work, but I know that fingernail polish will work, done it many times. Just do it with computer unplugged, only use a small amount and let it dry completely.

Do you not know anyone that will allow you a tiny bit of nail polish?

This is a very small problem, don't overthink it.

 

[carlo_bigtunes]

it just little scracth there, no problem
don't worry if copper not seeing

I just edited my last message. I'm not sure . And can i use the liquid i showed up (my second message)?
Thank you.

i suggest to let it, don't use any liquid or something which make it worst,
from the picture i saw a ground area there, it's not affected on motherboard process

 

[resolver]

it just little scracth there, no problem
don't worry if copper not seeing

I just edited my last message. I'm not sure . And can i use the liquid i showed up (my second message)?
Thank you.

i suggest to let it, don't use any liquid or something which make it worst,
from the picture i saw a ground area there, it's not affected on motherboard process

Maybe i will let it untouched.

But I want to ask people with practical experience with this type of problem. How many time need to copper to oxidize (in case if some little micro-surface of copper was unmasked)?
What you think about nail polish or candle wax(i prefer last one, much easier to apply and remove).

And sorry to not chose the solution. At this moment.
Thank you.

 

[techgeek]

As I said to start with, you can leave it and not worry about it. As for as the copper corroding, unless you take the computer in the bathroom with you while you shower you'll be OK. It would take a lot of humidity to corrode it. Even corroding, it would take far longer than the practical lifetime of your motherboard before the corrosion would cause any problems with the trace. In fact such as small area is exposed, you could completely remove the copper that's exposed and it wouldn't make a difference.

I'm an Electronics Engineering Technologist, I work with this stuff all the time. I have circuit boards that are well over twenty years and any exposed copper on them haven't corroded significantly.

If you must use something, clear nail polish is what I'd use.

 

[resolver]

Future telecom engineer. So i have some idea how this stuff work . But no practical encounter.
Do not like use nail polish. Maybe wax is easier?
And btw this one is a laptop MB. And i hope to use at least 4 - 5 years. Climate here like in London... Lot of humidity.
The second issue is, if i start cover with nail polish warranty will be lost. Without nail polish it was like it was.