Hey guys, My MDD has all four slots on the logic board filled with RAM in this configuration. PC 3200 PC 3200 PC 2700 PC 2700 I know that the RAM will only run as fast as the slowest chip, but system profiler registers all the ram as PC 2600. I know this Mac supports at least PC 2700. The first RAM slot has one of the little white locking arms broken off. Do you think that would have anything to do with it?