powr dist. board/cRIO puzzle - please advise!

[Steve Compton]

In our second quarterfinal match yesterday, our robot went over the bump and upon hitting the ground on opposite side, the cRIO cut out and we were dead on the field. Back to the pit, tethered up and could not recreate the problem. Out to the field and the first bump to the robot and it went out again, then rebooted after time, the cut out again.

Troubleshooting afterward (haing won the first match, we lost the second two), we found that if we pulled one specific fuse to one of our window motors, the cRIO problem was gone - we could smack the robot into walls, shove it, bounce it up and down, etc and no problem. We put the fuse back in... and simply picking one end of the robot up a couple inches and dropping it caused the failure to occur.

I'd appreciate your good minds on this one, and thanks!