Hello, A fellow worker has asked me to help her upgrading her ram since she has less idea than i have. She has an ibook g3 and wants to upgrade her ram. I have checked the apple store and according to the web she needs a 512MB SO-DIMM (PC 133) 144 pins. i have checked the local store and they have in stock the folllowing: KINGSTON so-dimm 512mb sdram valueram or KINGSTON so-dimm 512mb sdram low profile- value ram. I know that the best guess is to buy direct from apple store, but there is a difference of 60 euros. Can anybody tell me which is compatible?