I am upgrading a friend's blue and white (with Sonnet 500 G4) with a new HD. (I believe the Mac is a rev. B model, it has brackets to put a hard dirve on top of the main one.) The onboard controller is only ATA/33. The new drive is a 40 GB Maxtor DiamondMax 8 Plus. It is Ultra ATA/133. In the user's manual, it states that "On computers older than Power Mac G4, you are recommended to use an ATA PCI card instead of the onboard ATA." Does this mean I NEED a new ATA card?? Will using the onboard one give me porblems (like kernel panics/data corrupotion)?? Or does it just make the drive faster?... Thanks.