Seems it was a heat issue I have a fair sized fan blowing directly on the Super CPU main board so far no lockups and I was able to finish my task so problem solved. If course I have the top cover removed from the Super CPU with the cover on and the metal case is small doesn't take very long for the case to get warmer and overheat the unit. I remember the Ramcard generates lots more heat, overheats causes a lockup the screen fills with vertical colored stripes on the monitor screen. Terry Raymond On Wed, Jul 25, 2018, 5:43 AM smf <smf@null.net> wrote: > On 24/07/2018 19:18, Terry Raymond wrote: > > I switched back to the Sid artist songs that were looking up and then it > > would play, at some point though one finally did lockup the computer. > > It could be all manner of things, if it's random then maybe it's writing > random data to one of the SuperCPU registers which doesn't cause a > problem on a standard C64 but does when the SuperCPU is plugged in. > > Otherwise if it crashes on a particular song at a particular place then > it might just be that it's doing something that isn't compatible with > the SuperCPU. > > Like undocumented instructions, using RMW side effects for interrupt > acknowledge. > > Trying to find a song that always crashes quickly might help to track it > down. > >Received on 2018-08-04 19:00:05
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