3 Things to Know About the PowerBook G4 Titanium’s RAM Limit
One gigabyte is the maximum RAM The PowerBook G4 Titanium cannot accept more than 1 GB of RAM. This is a hard limit.
Two 512 MB modules fill both slots You must use two 512 MB PC133 SDRAM SO-DIMMs to reach the maximum. There are no other configurations.
1 GB is enough for basic tasks For office work and classic Mac OS applications, 1 GB is sufficient. Do not expect to run modern software.