I didn't see a section for Power Macs and I don't think this is old enough to qualify as vintage yet, so I thought I'd post here. I picked one of these up yesterday for $75. Our teacher had one of these back in the 90s, though it was probably the Performa variant since it was a school computer. It's in pretty good shape (other than being super yellow) and it wasn't too dirty. I am having a couple of problems, though: the clock battery is dead and the RAM is insufficient to run Clasilla properly (64 MB installed). How do I open her up, and what kind of RAM does this thing take? Also, the microphone doesn't seem to be working. How can I test it?