At 13:51 2/10/96, you wrote: >The EPROM is from Intel the numbers on it are B57604 > S7804 > U842005MS >is this a standard 27256 or what?? I would just read it as a 27256 and see how many times the code "repeats" in the adress space of the eprom This way you can tell if it's a 27256, 27128, or 2764 What does the processor say, what freq. is the xtal?!? Jim