I missed the part about your onboard ram being dead. Will those things power on without the module inserted?

Click to expand...

That is what I was about to ask. I'll test it if I can, but first I need to find out where it is located and see if it still chimes after its removal.

"An optional RAM expansion card plugs into a 70-pin connector on the main logic board.

With the RAM expansion card installed, the processor and memory subsystem supports

up to 56 MB of RAM.

The RAM expansion card for the Macintosh PowerBook Duo 2300c computer is

compatible with the one used in earlier PowerBook Duo models. The computer accepts

up to 48 MB on a RAM expansion card."

So yes, it would fit.