800MZ iMac G4. After putting in the 512MB PC133 SODIMM next to the airport adapter, I rebooted and the new RAM is not showing up in system profiler. I replaced the internal 256MB with a 512MB without any issues and this seemed relatively easy compared to that process. Any ideas why it's not showing up? Already tried zapping the PRAM at startup and that didn't work. Defective RAM? I ordered it from Memory Ten but their tech support hasn't gotten back to me yet. Thoughts?