Mega Midget Racer in 68000 mode doesn't work with A590 SCSI controller?

[AmmoJammo]

is this a known/common fault?

took me a while to realise what was going on.

seems running in 68030 mode (at 33Mhz) it's perfectly fine.

but if I connect the jumper on the board, or use the software switch and run it at 7Mhz, I get varying errors when it trys to boot, either from the HDD, or FDD...

Unplug the A590, and it seems to be fine?

[AmmoJammo]

what fast ram?
the ram in the A590 is disabled, I was using 8meg under the 68000, but it needs software to be added anyway.

do you think removing the ram from the A590 would make a difference?

[AmmoJammo]

Also, the A590 has the AM33c93A SCSI controller, as well as AM33c93A Version 7.0 of the roms.

[AmmoJammo]

disabled "Autoboot ROM" (turned switch 1 off at the back of the A590)

boots workbench 1.3 from floppy in 68000 mode no worries!

so, what now?

try the old SCSI roms?

[AmmoJammo]

Is it possible for you to test the A590 with another AMIGA?

with the mega midget racer?

[AmmoJammo]

With and without!

the MMR works fine when using the 68030 processor, and A590.

the A590 works fine when using a 68000/68010 processor plugged directly into the A500 motherboard.

the only issue seems to be when trying to use the MMR in 68000 mode, with the A590.

[AmmoJammo]

I get two errors?

with Kickstart 1.3 enabled:
http://img193.imageshack.us/img193/8487/20120821174859.jpg
http://img208.imageshack.us/img208/9901/20120821193216.jpg

and then with Kickstart 3.1?
http://img89.imageshack.us/img89/3806/20120821193318xq.jpg
http://img211.imageshack.us/img211/8562/20120821193346.jpg

[AmmoJammo]

@AmmoJammo:  when you are in 68k mode is your fast ram on the MMR (assuming there is some) still available?

nope, not available.

all the accelerator has is 512k of super dooper fast ram.
but it's not accessible in 68000 mode, and from memory, fall back mode with the A590 didn't work, even when there was no ram on the accelerator.