English Amiga Board - View Single Post - Adding some memory to A4000D (rev B) mobo

macce2 · 19 April 2022, 20:51

Hello,

Maybe a kind of noobie type question, but I'd like to replace
my current 80 ns simms with 60 ns ones.
Would this propably work; or is any kind of additional modification
needed ..?!
I have jumpered the Rom speed as 160 ns. (?!)

Is it true that the memory simms to be used on A4000 mobo

should be of FPM type; or would EDO

type also work..?!
Would a 4 mb simm work on the Chip memory slot ?
Or does it have to be a 2 mb simm (if you want full 2 mb chip!) ..?
Any additional advice appreciated.

19 April 2022, 20:51	#1
macce2 Retro maniac Join Date: May 2005 Location: Finland Age: 49 Posts: 1,220	Adding some memory to A4000D (rev B) mobo Hello, Maybe a kind of noobie type question, but I'd like to replace my current 80 ns simms with 60 ns ones. Would this propably work; or is any kind of additional modification needed ..?! I have jumpered the Rom speed as 160 ns. (?!) Is it true that the memory simms to be used on A4000 mobo should be of FPM type; or would EDO type also work..?! Would a 4 mb simm work on the Chip memory slot ? Or does it have to be a 2 mb simm (if you want full 2 mb chip!) ..? Any additional advice appreciated.