I've asked this over at English Amiga Board, but I'm anxious to know if this will work, so I'll repeat post here in the hope of catching an answer faster
arnljot said:I have a MegaChip (under way), Agnus 2MB pal (8375 390544-01).
And I have under way 30 nec dram chips 100ns, suitable for install on an a500 MB.
Could I combine this to make the A500 rev 5 have 2MB chip?
https://myoldcomputer.nl/amiga/1-mb-chip-ram-a500-rev-5/
https://acillclassics.wordpress.com/2019/02/18/megachip-a500-install/
https://www.amibay.com/showthread.php?106062-KIT-of-Megachip-for-Amiga-500-2000-CDTV-30%80
The 1MB mod requires to isolate out pin 41 of the Agnus 8372a used in the 1MB mod.
The megachip mod just attaches to the gary at it's pin 36.
Can these two mods be combined, and can I ignore the agnus pin mod on the 1MB mod?
PS, for the 1MB in the trapdoor Im thinking the A314