California said:
What exactly does this mean about the chipset? Does this mean that there is a slowdown in how fast a hard drive runs or how much memory can be accessed? I am sure i'm totally wrong but I'm trying to understand the differences, dumbie I know.
Basically yes, the Intrepid was using an ATA66 interface for the Optical drive and plain DDR memory bus -- basically technology that has been around since the DDR FP iMac G4 was introduced using the Intrepid chipset.
The Intrepid2 updated the FSB (likely), added DDR2, switched to ATA100 for both HD and Optical drive, etc. there are also some other changes we may never know about and some hidden features.
Basically Apple cannot add a native SATA drive to the new PowerBooks unless they add a PCI-to-SATA controller or update the chipset -- the chipset also likely cannot handle PCIexpress like the new iMac/PowerMac (until the chipset is changed again -- very unlikely until the Intel switch).
Some I/O can be updated using the PCI bus, some cannot be added until the chipset changes.
The Chipset is just some of the core I/O and capabilities -- but Apple is quite good at making several different machines using a single chipset.