Lubuntu crashes at random on g4 mini


I recently bought a g4 mini from 2004. Now i was trying to put a form of linux onto it because it runs mac os 10.5.8 and no other apps support that any more and its really crap. But every time i booted into Lubuntu installer from the disk it would crash at a random point and i had to hard reset the system to get it back in working order. Now i did manage to install Lubuntu onto the system (somehow). But now it is doing the same thing, crashing at a random point if i try to do something. I haven’t fully figured out why it does this but it seems to have to do something with that if i do something big, for example: try to look in a zip file, it crashes.

Now i have made a video showing it boot from scratch and eventually crash.

Here are the system specs if that is needed:
CPU: PowerPC G4 1.25 GHz
Ram: 512 DDR SDRAM
GPU: ATI Radeon 9200

I hope that you can teach me something here because this whole experience was a learning curve for me.

I’ve moved this to the category because this site isn’t designed to take tech support questions. Sorry. I’d recommend using one of the official support channels listed on the page