Does anyone know if it's possible to add a single 128 mb ram chip to an E-Synth keyboard (running OS 4.10a) and NOT be forced to disable the E-Synth rom? I've got 64 mb there now, but I'd like more ram and I actually do use the sound rom.
Would it be possible if I upgraded to OS 4.61? (That's the highest non-ultra OS, right?) Are there other significant advantages to making the 4.10a - 4.61 switch?
Thanks for your help!