Motherboard Repair Advice

Zephyries

Honorable
Nov 12, 2015
6
0
10,510
I have a scratch running through two, maybe three tracers on the back of my AsRock Extreme6 motherboard, which resulted in a 1 second power cycle. Took me a while to hunt down the cause too.
As a last resort I tried using a graphite pencil to fix the circuit, which to my utter surprise, actually worked.
So my next step appears to be- get a conductive pen to patch the circuit and then coat it in something like nail polish or epoxy, or attempt the most delicate soldering job I have ever seen. The tracers that have been cut are VERY small, and running parallel.

Anyone have any experience with this sort of thing, be it the conductive pens or soldering under a magnifying glass?
 

giantbucket

Dignified
BANNED
depends on the trace - some are relatively wide and you could do it (i'd skip the pen and use a strand of wire, like one strand from a section of multi-strand wire). some traces are really fine and it would be almost impossible to get a soldering tip fine enough to work on them.

i'd practice on a spare dead board. maybe take apart an old dead IDE CD drive or something and practice on that.

you could also try to simply use tape - stick a short wire strand to the tape, and position the tape so that the strand "fixes" the break. not very permanent as the tape glue will dry out over time and fall off. but it's quick and easy. and might work.
 

Zephyries

Honorable
Nov 12, 2015
6
0
10,510



Sorry to reply after so long, I just realized I hadn't after experiencing yet another problem.
The tracer I was looking at was, as I said, VERY small, as in no chance of using wire and tape- even a strand of multicore. In the end, the pen was perfect and solved the issue completely. very tricky working with such a small problem, with very little room for error.

I did indeed practice on a spare board before I applied the circuit pen, and thank god, one bad hand movement or too much pressure would be a pain to do-over. Tracers were maybe 1/4 of a mm, with a gap between the next along about the same. May have been smaller, but soldering was out of the question completely.

Surprised I managed to use the graphite pencil in the first place without shorting something.