Woo! Kernel dump!
Found a copy of ClusterKnoppix that appeared to have the same kernel version of the copy of CHAOS I have. Fired it up and was able to get the CHAOS computers to join by giving them the j2 option. Also got that one with the dead PS repaired and so now I have 4 computers in my cluster. Figured a good test would be a linux compile so I started one up. One by one as the load went out to the other computers, they kernel dumped! Woo! Wait, that's not a good thing. I think I can get one of them to PXE boot, might try that next which should guarantee they are all running the same kernel verison.