On 4-12-2018 3:05, Clifford Heath wrote:
On 4/12/18 12:53 pm, bitrex wrote:
Due to an unfortuante jab with the head of a screwdriver it looks like I
have at least one, possibly two broken traces on this GPU card, on the
traces running between the processor and VRAM. Result is corrupted
display output/won't switch into high-resolution modes. The ram is BGA
and the GPU likewise and under a small heat-sink so hard to test
continuity, plus the trace width is very small, looks like perhaps 4 mil:

https://www.dropbox.com/s/ig9h3vjze5omlie/2018-12-3%2018-11-20.jpg?dl=0

Palette inverted:

https://www.dropbox.com/s/m05pikt3yexq2f6/2018-12-3%2018-11-30.jpg?dl=0

Any suggestions for mending a break on a trace like this?

Fine wire. Pre-tin it, solder to one side of the break, pull straight
and solder the other side. Make sure the track has wettable surfaces
exposed first, or course.

Clifford Heath.

+20