EPROM Problem
Got a board in that when it booted up the attract screen was messed up.
Flexing the board around the area of 1A cleared up the problem. Looking at the back of the board I see someone tried to reflow the solder around a bunch of the sockets. I'm going to start ripping them up one at a time and replacing them with new clean ones.
Update: Replacing the socket at 2A fixed it.