I show (amiga.resource) the original state of the advertised motherboard.
The modifications of the RAM expansion are built in only.
Look pics on 6, 10, 11 message in this topic. 100% working.
I use this in my machine now. Whdload programs OK with 4 MB fastRAM expansion.
I am not a dealer. The manner of the 2 MB modification is not public (ant pic).
The number of the motherboards limited, because heavy (2-3 months/1 piece) to find a suitable motherboard (rev. 8A 0,5 MB version).