"Ernest" wrote in message news:izmf7.31447$vW2.13893050@news1.sttln1.wa.home.com... > Is there an easy way to find out how much RAM an Apple II has, or more > specifically, an Apple II clone? I'm not familiar enough with the different > chips to be able to easily tell by looking at the physical RAM on the board. > If I see several rows of chips in the RAM area on the mainboard, how do I > determine whether it's 48 or 64k? > > Thanks > > E. > Most chips will have something in the line of 44xx or 41xx The 44 series is 4 bits wide and 41 series is 1 bit wide. The older computers used for the most part 1 bit wide chips. 4104 - 4k x 1 4108 - 8k x 1 4116 -16k x 1 4164 - 64k x 1 Of course, that wasn't always true. It varied by manufacturer but it was the most common numbering scheme I have seen. Often they will have a dash number after the chip number. This is the speed of the Ram. For example, a 64K x 1 chip that is 120 ns will be marked "4164-12". If it was 100 ns, it would be marked "4164-10". 70 ns "4164-7". -- -- William R. Strutts - wrstrutts1@nospam.home.com - Whatever! C'est moi! http://www.facelink.com/wrstrutts Just hacking away... Remove nospam to reply.