The CPU is a system 4 board which makes it more easy to replace the game PROMs by EPROMs.
The infamous SCANBE IC sockets are still there. It is mandatory to replace them. When you keep using the PROMs you need to replace 4 IC sockets. If you are going to use 2716 EPROMs you need to replace 3.
Also, replace the 6800 IC socket and the socket for the 6875 clockgenerator.