Well..

Jon, it is sort of an involved answer. What the codes 30330 and 25440 mean is the latency settings of your RAM. In breaking down the "30330" code, the "30" means 3.0 CAS latency, the following "3" is 3 TRCD latency, the next "3" denotes a TRD latency of 3, and the final number of "0" is the SPD spec version. Likewise the 25440 means 2.5 CAS, 4 TRCD and 4 TRD. Latency is the number of clock cycles before a certain action can be performed within memory. Long story short the new RAM is both faster and slower. But only nominally. What you really need to be wary of is that the Mac runs stable on both sticks. It should set the memory timings so that both sticks operate within specs. If your system is unstable, then it may not be setting them properly (Not entirely unheard of with older Macs). If it is stable, the performance loss will be negligable, something on the order of .5% - 1%, depending on the type of application. Just watch you stability. CAS latency is the most important of the three for performance deltas.

Twas a great time at the Con. Sorry that Art, Johnny, and Motorbyke couldn't make it. Kublacon! Everyone mark the Memorial day weekend of 2005 on your respective calenders.

D>M>