Back

The Z3660 can load Kickstart files from an SD-card and map them to the ROM region, allowing me to use the awesome DiagROM to test RAM, I/O ports, audio and more:
https://www.diagrom.com/

Those vertical bars flash on and off. They're probably caused by a faulty data line between Denise and Fat Agnus, or perhaps between Fat Agnus and the Chip memory bank.

The Chip RAM banks pass all memory tests, so we can exclude them.