exxos's Atari, Amiga & retro forum

Hi,
is it possible to run the CPU on the TF536 with 40MHz, means just replacing the Oscillator?

Firmware is fixed for 50mhz, so it most likely will not work.
You need to source 030 which will handle 50mhz better, if your cpu is unstable at this speed.

ninjafahrer wrote: 30 Dec 2020 21:44 Hi,
is it possible to run the CPU on the TF536 with 40MHz, means just replacing the Oscillator?

All bets are off if you move away from 50mhz. The logic and timing are fixed at this frequency.

ninjafahrer wrote: 30 Dec 2020 21:44 Hi,
is it possible to run the CPU on the TF536 with 40MHz, means just replacing the Oscillator?

I tried it but I would not recommend it. It only works with certain A500 motherboards (I think this only worked on a rev5 but not other revs), and there may be other side effects.