I tried the 1 ram option and also put some extra cooling on the harddrives.
And it worked. Thanks guys, for the help.
Now the next part.
I ran synaptic package manager, installed the "envy" from inthere, after that I updated the rest of the packages with update manager. Rebooted and everything still is ok.
Now I have to figure out how to go from 8.10 to 9.04 the safest way.
Easiest is to click update to 9.04 in the update manager, but I don know if that will ruin Ultimate Edition.
But one thing is sure. I'm also gonna make a Ultimate Edition installation USB.