Can I use 64 MB or larger RAM modules in my Takky?
The 63x-series boards (including the 58x and 640) work just as the 575 board does as far as RAM configurations for the first slot. The second slot takes only single-banked modules. Interestingly, the 63x-series boards are the only CC upgrade boards that can be upgraded past 136 MB RAM, by using a 128 MB module in the first slot and a 64 MB, single-banked module in the second slot for a total of 196 MB RAM. (Yes, I’ve done it. No, I don’t know what the heck to do with 196 MB RAM in a Takky.) My testing is yet to be completed on the Codyceps (x200/x300-series) boards, but watch this space for information. I suspect the issue that plagues the PowerCard upgrade similarly haunts the first-gen PPC boards based on the 630, and that 64 MB is an absolute limit no matter what. No one has ever gotten a Gazelle or Alchemy board to recognise DIMMs of capacities greater than 64 MB. This limitation caps the Alchemy boards at 136 MB (8 MB onboard + 2 x 64 MB DIMMs) and the Gazelle boards at 128 MB (0
