Not on something as complex as a mother board is, they have multiple layers and conductors we can't see. Plus it's probably not the trace, but a regulator, inductor, or capacitor that is out of spec or defective. Power circuits like these are adjusted to work with the trace resistance. I don't think it is worth voiding your warranty to do that either.
There's another recent post about this issue in the forum, so maybe (Ha!) this is a known issue to ASR, and you can RMA your board.