So, I tested the card on another cab, a Blast City (jamma 5,00V).@GameOver you have a mv1fs. Try lowering the power from 5.00V down to 4.7V that should fix all your problems.
Same problem of controls on Garou and FF3. Same problem of boot on Pulstar.
So I decided to lower the voltage to 4,7 on this cab but still, same errors.
To remember:
MVH MV1FS
Bios Jap
No dip switch enabled
Trace R193 cutted