Aftermarket hack to get 128MB on motherboard? I've heard rumors of those. Most only support 16MB. You sure about 128? 
I don't know why Commodore continued to cripple their machines with such poor memory access. No fast mem on the A1200 or CD32, slow access on the A4000/4000T, etc. Oh well, just a few in the long list of dumb decisions. Aside from the finger-slicing case and mediocre airflow the A3000 really seemed like the best of them!
I'll have it here soon and check it. It always reported 25xM of free mem. I'll let you know.
It came stuffed with everything imaginable, no CF back then.
Chris