On Feb 10, 2004, at 12:40 PM, Chris Olson wrote: > Not the Titanium. The 2002 circa PowerBook in question is limited to > 1GB because of the logic board chipset. The model in question was > introduced November 2002 and discontinued September 2003. It can > handle 1 GB via two 512 MB PC133 3.3v 144-pin SO-DIMM modules. > Theoretically, if a manufacturer were to make 1 GB PC133 3.3v 144-pin SODIMM modules, they would work in the Titanium. I actually put 512 MB in a Wallstreet PowerBook that supposedly had a limit of 192 MB because at the time no one made 256 MB SDRAM chips. I don't know if this will happen, and it probably would void the warranty since it would require getting to the "non-serviceable" RAM slot, but it *could* work. Chris