I bought this vintage PowerMac G5 at my mother's university. While it's nice, it's slow. Therefore, I decided to upgrade the RAM. After doing a lot of research, I successfully upgraded the RAM from 1GB to 3GB. Now she's much faster and as a Mac newbie, I couldn't be more satisfied. Here is my video on the upgrade.
http://www.youtube.com/watch?v=dsv7A-AY8J4
http://www.youtube.com/watch?v=dsv7A-AY8J4