Mass Hysteria said:For my rev B 1.33 17", I have the KTA-PBG4333/1G Powerbook recommended Kingston memory, which works fine. (DDR, in my case, not DDR2)
I too would like to know how the memory is different when all the specs/numbers appear the same, just one of them says 'OK for Apple', has a different part number and costs £10+ more.
The "specifications" commonly listed such as data rate, ECC/nonEEC, PC3200, etc do not emcompass all the variables for a stick of RAM. One variable that matters for some Apple computers is the number of RAM chips used to construct the stick. The number of RAM chips used is rarely listed as part of the stick description but is important for Apple compatibility. (I know this is the case for the MacMini and am using this as an example to extrapolate to other Apple machines.)
Other detailed specifications that are not always reported but could vary in some way to lead to incompatibility is the RAm timings. Depending on the manufacturer and their testing methods some RAM could be tested and pass as being stable at a certain speed/frequency but be marginal enough to not be stable at that level in Apple computers.