Amiga 600 2mb chip hard hack

[mfilos]

I don't think that there is a problem for mounting an ACA630 over an 68010.
Since the 68010 is modded to the mobo, you should check how good the person that did the mod soldered the 68010 in place. The only problem is IF ACA would clip over the 68010 due to bad soldering.

I didn't know about 2 methods of piggybacking RAM to A600. I only knew one but I'm definitely unfamiliar if the mod interferes with the actual expansion port.
I guess contacting Jens Schoenfeld through his website would solve your mystery.

[mfilos]

ACA630 exists only in 25MHz with 32MB RAM. There were some few models that had 30MHz and 64MB RAM.
No 40MHz version is announced for future from Individual Computers AFAIK.

If you want to run WB3.1 then you should upgrade to Kickstart 3.1. Even if you wanna use the HD you should check that your Kickstarts ROMS are >= 37.300 or else you won't be able to boot.
Best Kickstart for A600 pre 3.1 (40.63) is 37.350.