I am using this in my iBook : DIMM1/J7: Size: 1 GB Type: DDR SDRAM Speed: PC2700U-25330 Status: OK There was some issues with the pc2100 the machine would not boot. do not know why it kept giving the bad memory sond at startup. The very nice people at Memoryx and I tried half dozen sticks of 2100 and kept getting the same problem. Put it the PC2700 SDRAM and it worked right away and has been chugging along nicely ever since. Good luck Brian iBook G4 1.33 GHz 1.25 GB RAM On Dec 12, 2006, at 10:59 PM, jasmith at cim.mcgill.ca wrote: > Hi, > > I would like to upgrade the RAM in my iBook (14", 1.33GHz) and came > across > some conflicting information. On the Crucial website > (http://www.crucial.com/store/listmodel.asp? > cat=RAM&mfr=Apple&productline=iBook&submit=Go) > the recommended product is PC2700. On the Low End Mac site there is a > warning about using PC2700 (http://lowendmac.com/ibooks/ > 14-133.html). The > LEMac people say that only PC2100 should be used, because there is > 256MB > of PC2100 soldered to the main board of the iBook. > > Has anyone here used PC2700 instead of the recommended PC2100 in their > iBooks? Since I can't find any PC2100 at Crucial, is there another > supplier? > > thanks! > > James > _______________________________________________ > iBook mailing list > iBook at listserver.themacintoshguy.com > http://listserver.themacintoshguy.com/mailman/listinfo/ibook > > Listmom is trying to clean out his closets! Vintage Mac and random > stuff: > http://search.ebay.com/_W0QQsassZmacguy1984