Seeing all your hardware specs?

[Brian]

Lets see now...

The A500 with 68000 CPU supports a maximum of 10Mb RAM.

8Mb of true fast mem
2Mb of chip/"slow fast" mem (min 0.5Mb chip) in a few different combos (0.5/1/2Mb chip : 0.5/1/1.5Mb "slow fast" : max 1Mb total if no Gayle fix)

Now that's the RAM, we aren't counting the 0.5Mb kickstart ROM memory right? ;-)

[Brian]

Yes.. the 68000 can access 16Mb but the A500 only allows for it to access 10Mb... Or os I though as I didn't know of the Ranger memory so I guess something like 11.6Mb with the ranger memory hack (is there a guide for this anywhere and how will it register, as fast memory?).

I wouldn't go into reserved areas but as you point out there might be a way to gather another 1Mb there if you hack it successfully... though I doubt it.

Realy if one need more than 2Mb chip and 8Mb fast one shouldn't hack the computer but upgrade to a better Amiga or at least look into existing A500 030 turbo board instead. One could even do a SIDECART->CPUSLOT hack and use existing A2000 turbobboards rather than hack the motherboard to peices just for another few Mb of slow memory.