I managed to obtain this is somewhat broken state but managed to fix it
I connected it to the 16MHz line using the free wire on the board, and this seemed to work fine. Going by the chips would seem it has a cache on board. Some assuming this is a early design, or even a prototypes ones which have the oscillator on board which will run at 28MHz normally..
TEST RESULTS:
Just for comparison a normal 16MHz boost on CPU only..
Results from 16MHz CPU & ROM
So the cache is to add on average 24% speed boost.. Not too shabby I guess...
