Computer Won't Restart after Installation


I just purchases a G4/500 DP. I have installed an additional 256MB dimm. When I try to install OS X, everything seems to go fine until I get to the last screen which tells me to click restart. Once I click it, my mouse goes dead and I get the color pinwheel, but the computer never restarts. I have waited up to 45 minutes and still nothing happens. Using the option button on starting the computer does not give me the option to boot OSx, only OS 9. I wiped my hard drive and reinstalled OS 9, then tried OS X again with the same results. Does anyone have any ideas?

PS: How do I run the installation in verbose mode?