On 5/6/03 11:39, "F. Hill" <fhill at gci.net> wrote: > I purchased 512 RAM chips for two of the earliest iBooks: the original > 300MHz blueberry (upgraded to 20GB) and the next-to-original 366 MHz > gray (purchased used, later upgraded to 30GB). Neither has firewire; > they are indeed the original iBooks. The 512 RAM chips fit perfectly, > and I do notice a difference in many areas now that I am running the > iBooks with so much extra RAM. I use OSX 10.2.5 and OS 9.2.2 on both > iBooks. I consider the early clamshell iBooks to be collector's items > now and would not think of getting rid of either one of them. But how much ram is the computer using? I had a graphite clamshell, it maxed at 320 MB. It's very possible that you put in a 512 MB card but that the Mac can only use 320 MB. Go to the Apple menu > About this Mac and see what it says... Kirk My forthcoming book: Unix for Mac OS X: Learning the Command Line http://www.mcelhearn.com/unix.html . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . kirk at mcelhearn.com | http://www.mcelhearn.com . . . . . . . . Kirk McElhearn | Chemin de la Lauze | 05600 Guillestre | France . .