olegil wrote:
Well, I'm running a custom jobbie ;-)
No fan, HUGE heat sink. 25MHz CPU overclocked to 80MHz. CPU is soldered on, so cannot clean that socket.
Erm, 25Mhz to 80 Mhz and it no longer boots?
And with no fan??
040`s are well known as running hot in standard form.
OK, so you`ve got a "HUGE heat sink "..but that means bugger all if you haven`t got the airflow to cool the heatsink down.
My tip, restore the crystal/oscillator back to bog standard boring 25Mhz, and try it again.