any way to disable the rom and put ram instead?

any way to disable the rom and put ram instead?
i got 2 16mbs rams that work, and 2 32bs rams that only read 4mbs each...i would like to have all inside the emu.
any suggestions to disable roms?
thanks
i got 2 16mbs rams that work, and 2 32bs rams that only read 4mbs each...i would like to have all inside the emu.
any suggestions to disable roms?
thanks