filling up A2058 RAM Expansion Card

[JimS]

You need 1megx1 DRAM chips for the 2058 card. You can go to either to 4MB or 8MB. The 6MB configuration is not allowed.
Here are some numbers:
Hitachi HM511000-10 (last two digits are speed. 10,12, or 15)
Matsushita MN41101-10 or -12
NEC D421000-10
Samsung KM41C1000/1-10 or -12

As to where you can find those now... I wouldn't know.. they are obsolete.

-Jim

[JimS]

I forgot to mention that the 2058 used dip style chips... Personally, I would prefer to use the zips, if I could find them, and if it really did use the same ones in the A3000. I think the smaller number of zips required would mean less power and heat. On the other hand, I've had a fully loaded 2058 in my 2000 and on my A1000 in an outside box for maybe 15 years...