pb 12" and 15" ram compatibility

Discussion in 'Buying Tips, Advice and Discussion (archive)' started by spinitch, Nov 12, 2003.

  1. spinitch macrumors newbie

    Nov 12, 2003
    i want to know if the first generation 12" and 15" pbs have compatible rams? i recently upgraded my 15" to 1GB and i have a friend who owns a 12" first generation. are they compatible?
  2. MoparShaha macrumors 68000


    May 15, 2003
    San Francisco
    I don't think they are. What kind of 15" do you have. If it's a TiBook, then they are not compatible at all. The 12" uses DDR while the 15" TiBook uses SDRAM. If you have a 15" AlBook, then they are sorta compatible, as they are both DDR, but the 15" PB's RAM runs at a higher speed than the 12". I think it's okay to use different speed memory, although it's not recommended. I think all the RAM will slow to the speed of the slowest one.

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