SuperUfo Pro 8 add DSP chip

[mdmx]

I acquired a Super Ufo Pro 8 copier. I really like this copier because it's small and has a nice GUI. Unfortunately it does not have DSP support. According to the manual I have to use a DSP boot card to play DSP games. I tried Pilotwings and Mario Kart as a boot card, but that didn't work.

So I opened the unit and noticed an empty socket marked as 'DSP_74HC74' (14 Pin). I assume I can install a DSP chip here. So I disassembled my Mario Kart cartridge, but the DSP chip is much larger than the socket on the Ufo.

So how can I enable DSP support in the Super Ufo? I would prefer to install an DSP chip.