My A500 is modified to address 1MB chipram, half on the mainboard and half in the trapdoor.
Will that be a problem for this accelerator?
I suppose the 14MHz CMOS-68000 processor card will be installed on the CPU socket (68000). If I'm not wrong, the additional 2MBytes RAM will be managed directly by the CPU. So you'll have 2+2MB.
Wait & See...
Kedawa: No, that's actually what you are recommended to do. Any Fast RAM in the trap door will be disabled by the ACA500.
VingtTrois: You mean 2 MB Fast RAM (on the ACA500) and 1 MB Chip RAM (0.5 MB on the mother board and 0.5 MB on the trap door expansion).
Lot's of A500 owners will probably modify their A500 to have 1 MB Chip RAM. :rtfm: