Need help with powermac G5
So I just got a power mac g5 but I cant get it to work for nothing. I got it with no ram or hdd so I had some laying around but the ddr2 ram wasn't compatible so I picked up some more and got it to chime and display video. It goes to the screen with a folder and mac face. After a minute or two it will freeze. keyboard and mouse will turn off. I try to boot it from a Ubuntu disc but that wont work at all. This is my first mac ever and so far its been an unenjoyable ride. What options can I try? I figured Ubuntu would work on it according to their website. Also after it freezes the very top light and very bottom light on mobo next to ram will turn red.