Startup screen was normal, but larger programs did not work properly - machine usually froze after typing RUN. In the first picture is a garbled screen of Rally Cross 2 displayed after the game was run. The second picture shows a frozen black & white screen displayed after a diagnostic cartridge 586220 reached the phase 'RAM TEST 2'. Some smaller programs such as Pacman worked fine, and a cartridge game (Kickman) worked ok also.
Contributed by Fastah @ lemon64.com
Bad U7 (MPU)
