> Anyone any experience with these modules in clamshell iBooks? > Is the full amount of RAM seen by the iBook and is 640MB the real limit > like OWC tells me, or is it just like the earlier iMacs, that it differs > per iMac? The clamshell iBook spec was written before these sticks were available. I have one in my blueberry ibook and it sees all 640 megs. You may need to make sure you have the latest and greatest firmware update - seen if you do apple's software update. Get one - they sure speed up X Dan