My wife noticed her computer seemed to cut out when she happened to bump the power cord. There is a blue LED on the power converter brick that indicates it is working. While she was showing me how moving the power cord often caused the computer to shut down I happened to notice the blue LED went out at the same time. Wiggling the strain relief on the load side of the power converter frequently caused the blue LED to light again.
Screwdriver for prying
Third hand to hold wires for soldering