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Anyone know if I can add more memory than this to my PB G4 12" ? It has 128MB motherboard + 512MB added. It was all I could add at time of purchase two years ago.
I found DDR 266. What's the difference in that vs. DDR333 ? Also, does the chip just install and replace my DDR SDRAM 512mb chip that I installed at purchase of Powerbook ?
DDR333 is faster so it's compatible with machines with 133 MHz and 167 MHz system buses. DDR266 only works with machines like yours that have a 133 MHz system bus.
Yes, if you already have a DIMM installed, you have to replace it.