"Wayne Stewart" <waynes@intergate.bc.ca> wrote in message 3B619293.3703527A@intergate.bc.ca">news:3B619293.3703527A@intergate.bc.ca... > My ZipGS runs fine at 15mhz with the origional 8mhz 65816. However I too > picked up a 14mhz chip which didn't help any but it finally came in handy when > I picked up a TWGS. What is the difference between a ZipGS and a ZipGSX? Charlie