i have a load of 30 pin simms which i am in the process of identifying for use in an ste (i don't have one at the mo so i can't just pop them in to see if they work) the number on the chips are - KM41C4000AJ-7 (4x1) and on some others - KM41C1000AJ-7 (1X1) and KM44C1000AJ-7 (1X4) i've found a site which helps identify - what i wanted to know is - does the "4x1" mean 4meg? and does 1x1 mean 1meg? what does 1x4 mean? is this 1meg or 4meg?? !! now i've confused you all! can anyone throw any light on this?